Asta Literature Retrieval: Pathophysiology and clinical mechanisms of Cardiospondylocarpofacial syndrome. Core disease mechanisms, molecular and...
This report is retrieval-only and is generated directly from Asta results.
- Papers retrieved: 20
- Snippets retrieved: 20
Relevant Papers
[1] New therapeutic targets in rare genetic skeletal diseases
- Authors: M. Briggs, Peter A. Bell, M. Wright, K. A. Pirog
- Year: 2015
- Venue: Expert Opinion on Orphan Drugs
- URL: https://www.semanticscholar.org/paper/1363107f71ae6d2d60abca471cddf3da5d13644b
- DOI: 10.1517/21678707.2015.1083853
- PMID: 26635999
- PMCID: 4643203
- Citations: 38
- Influential citations: 1
- Summary: An overview of disease mechanisms that are shared amongst groups of different GSDs and potential therapeutic approaches that are under investigation are described to generate critical mass for the identification and validation of novel therapeutic targets and biomarkers.
- Evidence snippets:
- Snippet 1 (score: 0.416) > proteins of the cartilage ECM such as type II collagen [50]. However, emerging knowledge suggests that the primary genetic defect may be less important than the cells' response to the expression of the mutant gene product [107]. Moreover, the largely overlooked response of a cell (i.e. chondrocyte) to the abnormal extracellular environment is also important for disease progression as illustrated by several GSDs discussed in this review. > It is important that 'omics'-based approaches and technologies are systematically applied to the study of rare GSDs so that definitive reference profiles and disease signatures are generated for each phenotype. These can then be used in a Systems Biology approach to identify both common and dissimilar pathological signatures and disease mechanisms. This approach is entirely dependent upon relevant in vitro and in vivo models (and also novel 'disease-mechanism phenocopies' [107]) for testing new diagnostic and prognostic tools and for determining the molecular mechanisms that underpin the pathophysiology so that effective therapeutic treatments can be developed and validated. This approach will eventually lead to personalized treatments and care strategies centred on shared disease mechanisms with the use of relevant biomarkers to monitor the efficacy of treatment and disease progression. > It is vital that all relevant stakeholders are involved from the outset in defining the appropriate outcomes of any potential therapeutic regime. The perceptions of a successful therapy can differ widely between the clinical academic community and the relevant patient-support groups and it is vital that there is engagement on all these issues. > In summary, the identification of causative genes and mutations for GSDs over the last 20 years, coupled with the generation and in-depth analysis of a plethora of relevant cell and mouse models, has derived new knowledge on disease mechanisms and suggested potential therapeutic targets. The fast-evolving hypothesis that clinically disparate diseases can share common disease mechanisms is a powerful concept that will generate critical mass for the identification and validation of novel therapeutic targets and biomarkers.
[2] An overview on cardiac involvement in Inborn Errors of Metabolism: from clinical clues to nutritional management strategies
- Authors: C. Montanari, V. Tagi, Martina Tosi, Eliana Stucchi, Eleonora Pisano et al.
- Year: 2025
- Venue: Frontiers in Cardiovascular Medicine
- URL: https://www.semanticscholar.org/paper/53edcd65284033a78e81633fbeb8012f21599561
- DOI: 10.3389/fcvm.2025.1648010
- PMID: 41425985
- PMCID: 12711851
- Summary: This review examines nutritional strategies for managing patients affected by IEMs with cardiac involvement, providing clinicians with research-backed guidance to support cardiological care, since specific nutritional strategies have shown promise in reversing or improving cardiac function in specific IEMs.
- Evidence snippets:
- Snippet 1 (score: 0.406) > Approximately 10% to 30% of the known causes of cardiomyopathy in childhood are attributable to IEMs (10, 130,131). In IEMs, cardiac manifestations can be indicative symptoms discovered during regular multisystem screening. While in disorders like MPS, heart manifestations may dominate the clinical presentation, in others, such as PD, they represent the sole clinical manifestation. Four fundamental mechanisms underlie the pathophysiology of cardiac involvement. First, cardiac symptoms can be linked to a reduction in energy production resulting from genetic mutations in proteins involved in energy homeostasis, molecular transport, or cellular organelles. Second, the intracellular accumulation of intermediates or storage substrates within cardiac myocytes can lead to structural and functional damage of the cardiac tissue. Third, the accumulation of intermediate metabolites may exert toxic effects on cardiac and surrounding tissues, for example, by triggering apoptosis in cardiac myocytes. Fourth, altered cellular functions such as signal transduction, depolarization, and cell adhesion, caused by the absence or alteration of glyconjugates, can compromise tissue integrity and cardiac function. It is important to note that pathogenetic mechanisms, summarized in Figure 3, may often overlap, particularly in later stages of the illness progression (33). In this review, we offered a comprehensive description of the cardiovascular diseases primarily associated with various types of IEMs, to guide cardiologists in the differential diagnosis (Figure 4). Moreover, the diagnosis of an underlying metabolic disorder should rely on the recognition of associated signs and symptoms characteristic of each specific disease. > IEMs have a wide phenotypic spectrum and may be characterized by a late onset or mild organ involvement, remaining misdiagnosed. Following the diagnosis of heart complications, the cardiologist should first conduct a detailed investigation of the patient's and family's medical history, including an assessment of consanguinity and/or the presence of rare inherited disorders. The patient's history should include age of onset of each clinically relevant symptom, the presence of associated pathological conditions and/or symptoms (hypoglycemia, myalgia, neurological issues or liver problems) and the result of neonatal screening.
[3] Transcriptional profiling of Hutchinson-Gilford progeria patients identifies primary target pathways of progerin
- Authors: Sandra Vidak, Sohyoung Kim, Tom Misteli
- Year: 2026
- Venue: Nucleus
- URL: https://www.semanticscholar.org/paper/4bd99b0875508364d8672b6da5a50d024d485a53
- DOI: 10.1080/19491034.2025.2611484
- PMID: 41489464
- PMCID: 12773485
- Summary: To probe the clinical relevance of previously implicated cellular pathways and to address the extent of gene expression heterogeneity between patients, transcriptomic analysis of a comprehensive set of HGPS patients finds misexpression of several cellular pathways, including multiple signaling pathways, the UPR and mesodermal cell fate specification.
- Evidence snippets:
- Snippet 1 (score: 0.401) > Oxidative stress represents another key pathogenic mechanism in HGPS, as impaired NRF2 activity or increased reactive oxygen species (ROS) levels are sufficient to recapitulate HGPSassociated phenotypes [17,32,60]. Collectively, these findings underscore the multifactorial nature of HGPS pathogenesis, implicating interconnected signaling cascades involved in inflammation, oxidative stress, proteostasis, and vascular remodeling. Reassuringly, our findings indicate that many of the major pathways that have been described to contribute to HGPS phenotypes in mouse and cellular disease models are also misregulated in progeria patients, and targeting these pathways may provide therapeutic avenues to mitigate disease severity and improve outcomes in HGPS. > Although individuals with HGPS typically exhibit a characteristic set of clinical features, such as craniofacial abnormalities, growth retardation, and cardiovascular complications, there is notable variability in the age of onset, severity, and progression of symptoms between patients [7,9]. At the cellular level, HGPS is associated with several hallmark abnormalities, including nuclear envelope defects, decreased expression of several nuclear proteins and epigenetic marks, mitochondrial dysfunction, and increased cellular senescence [1,11,30,31,61]. These cellular phenotypes also exhibit considerable variation between patients, possibly contributing to differences in clinical outcomes. Our results indicate that even though some degree of transcriptional heterogeneity between the individual patients exists, the majority of patients exhibit misregulation of a set of shared pathways, suggesting that these pathways are universal driver mechanisms in HGPS. Further work is needed to understand the molecular and genetic factors that underlie inter-individual variability in disease expression and progression. > A limitation of pathway analysis of HGPS patient samples is to distinguish the pathways which are directly targeted by the disease-causing progerin protein and the emergence of adaptive secondary response pathways during progression of the disease in patients during their lifetime. The same caveat applies to the use of cell-based models used in the study of HGPS disease mechanisms.
[4] Cardiomyocytes Derived from Induced Pluripotent Stem Cells as a Disease Model for Propionic Acidemia
- Authors: Esmeralda Alonso-Barroso, B. Pérez, L. Desviat, E. Richard
- Year: 2021
- Venue: International Journal of Molecular Sciences
- URL: https://www.semanticscholar.org/paper/da649a0f04477c53b448c5ac5f873f8762235290
- DOI: 10.3390/ijms22031161
- PMID: 33503868
- PMCID: 7865492
- Citations: 16
- Influential citations: 1
- Summary: The novel results show that PA iPSC-cardiomyocytes represent a promising model for investigating the pathological mechanisms underlying PA cardiomyopathies, also serving as an ex vivo platform for therapeutic evaluation.
- Evidence snippets:
- Snippet 1 (score: 0.389) > The study of the mechanisms involved in disease physiopathology has been mainly performed using the hypomorphic PA mouse model that mimics the biochemical and clinical phenotype [5]. Using this model, bioenergetic failure, oxidative damage and deregulation of miRNAs induced by accumulating propionyl-CoA have been described as potential mechanisms contributing to PA physiopathology [6][7][8]. The limitations of animal models for the study of cardiac energy metabolism [9] and of the commonly available cellular human models such as fibroblasts, underline the importance of generating new relevant cell models to provide deeper insight into the underlying mechanisms of disease. The use of in vitro models with human cellular context is highly recommended and, in this sense, induced pluripotent stem cells (iPSCs) have certain advantages since they provide the genetic background of the patient and represent an unlimited source of biological material for the study of pathophysiology and treatment effectiveness [10]. We have previously generated an iPSC line from a PA patient with defects in the PCCA gene that showed full pluripotency, differentiation capacity and genetic stability [11]. > In the present study, we aimed to establish a platform that served as a disease model to study the cellular and molecular alterations operating in cardiac tissue affected by PA disease. We described the characterization of cardiomyocytes derived from the PCCA iPSC line (PCCA iPSC-CMs) and the analysis of specific pathways potentially involved in cardiac PA physiopathology.
[5] Clinical Phenotypes of Cardiovascular and Heart Failure Diseases Can Be Reversed? The Holistic Principle of Systems Biology in Multifaceted Heart Diseases
- Authors: K. Lourida, G. Louridas
- Year: 2022
- Venue: Cardiogenetics
- URL: https://www.semanticscholar.org/paper/3960806730c4c1115f527e22d6d0a76536570ec5
- DOI: 10.3390/cardiogenetics12020015
- Citations: 4
- Influential citations: 1
- Summary: Only by understanding the complexity of chronic heart diseases and explaining the interrelationship between different interconnected biological networks can the probability for clinical phenotypes reversal be increased.
- Evidence snippets:
- Snippet 1 (score: 0.383) > Treatment with ACEIs, ARBs, and β-blockers impedes deterioration of myocardial function as well as clinical deterioration caused by the deleterious impact of the compensatory systems [58,59]. Therefore, the therapy with ACEIs, ARBs, and β-blockers is the appropriate therapy to block LV remodeling and HF progression and reduce symptoms and/or mortality [55]. > In general, the HF syndrome demonstrates a modular construction with predictable behavior of functional clinical phenotypes having a strong impact on biological networks from epigenetic, cellular to regulatory systems [18]. The importance of individual genes for the pathogenesis and clinical progression of the HF syndrome is restricted to the hypertrophic and dilated cardiomyopathies. It seems that some HF patients have a complex multigenic inheritance, but the importance of individual genes is limited. In contrast, the significant role of epigenetics, proteomics, and metabolomics is increased; but, the complete genetic network system and the interactions between multiomics systems are still uncertain [60]. Multimodal systems that include genetic networks, multiomics, metabolic pathways, environmental factors, and sophisticated disease-related clinical networks are required to be integrated and provide a new holistic and realistic picture. > Significant breakthroughs have been made to understand many of the pathophysiological mechanisms of HFrEF but the natural pathophysiological history and clinical progression of HFpEF still remains inadequately defined [39]. The subclinical progression of pre-clinical diastolic dysfunction (PDD) of LV "to clinical phenotype of HFpEF and the further clinical progression to some more complex clinical models with multi-organ involvement . . . continue to be poorly understood" [40]. Prospective studies are expected to clarify the natural history and clinical progression of HFpEF and define the LV remodeling mechanisms involved. The pathophysiology of LV systolic dysfunction is different to the diastolic dysfunction, as systolic dysfunction is considered a disease of calcium handling and diastolic dysfunction is regarded as a disease of increased myofilament sensitivity to calcium [61][62][63].
[6] Towards Mutation-Specific Precision Medicine in Atypical Clinical Phenotypes of Inherited Arrhythmia Syndromes
- Authors: T. Nakajima, S. Tamura, M. Kurabayashi, Y. Kaneko
- Year: 2021
- Venue: International Journal of Molecular Sciences
- URL: https://www.semanticscholar.org/paper/3d299f57f344d42eff9d3565d1581dae7fb87a54
- DOI: 10.3390/ijms22083930
- PMID: 33920294
- PMCID: 8069124
- Citations: 6
- Influential citations: 1
- Summary: Since the epileptic phenotype appears to manifest prior to cardiac events in this mutation carrier, identifying KCND3 mutations in patients with epilepsy and providing optimal therapy will help prevent sudden unexpected death in epilepsy.
- Evidence snippets:
- Snippet 1 (score: 0.382) > Recent advances in molecular genetics have identified many causal genes for inherited arrhythmia syndromes (IASs) such as long QT syndrome (LQTS) [1], short QT syndrome (SQTS) [2], Brugada syndrome (BrS) [3,4] and early repolarization (ER) syndrome (ERS) [3,5]. Most causal genes for IASs encode cardiac ion channels or their related proteins. Genotype-phenotype studies and functional analyses of mutant genes, using heterologous expression systems and experimental animal models, have revealed the pathophysiology of IASs and enabled the establishment of causal gene-specific precision medicine [6][7][8]. Furthermore, analyses of patient-specific and/or genome-edited induced pluripotent stem cell-derived cardiomyocytes (iPSC-CMs) have provided further insights into the pathophysiology of IASs and novel promising therapeutic strategies for IASs, although there are still some limitations of using iPSC-CMs, such as immature structure and function and mixed population of atrial, ventricular, and nodal cells, as a standard technology [9]. > The altered function of causal genes that encode cardiac ion channels is caused by multiple mechanisms, including trafficking defects, producing non-functional channels, altered channel gating properties, and a combination thereof. These altered functions of mutant channels underly the clinical phenotypes of IASs [10][11][12]. Particularly, unique electrophysiological properties of mutant channels have been shown to be associated with the atypical clinical phenotypes of IASs [10,13]. Furthermore, the elucidation of the mechanisms underlying the atypical clinical phenotypes of IASs has raised the possibility of mutation-specific precision medicine. > We herein review the current knowledge of genotype-phenotype relationships, underlying molecular and cellular mechanisms, and established pharmacological therapies of IASs, including LQTS, SQTS, and J wave syndrome (BrS and ERS).
[7] Direct Sarcomere Modulators Are Promising New Treatments for Cardiomyopathies
- Authors: O. Tsukamoto
- Year: 2019
- Venue: International Journal of Molecular Sciences
- URL: https://www.semanticscholar.org/paper/07467943fe92ce135b52ded5e5dea2bfc2ddf179
- DOI: 10.3390/ijms21010226
- PMID: 31905684
- PMCID: 6982115
- Citations: 16
- Summary: The direct inhibition of sarcomere contractility may be able to suppress the development and progression of HCM with hypercontractile mutations and improve clinical parameters in patients with HCM, and direct activation of sar COMs modulators that can positively influence the natural history of cardiomyopathies represent promising treatment options.
- Evidence snippets:
- Snippet 1 (score: 0.378) > Hereditary DCM can be caused by single point mutations in sarcomere proteins. However, the link between point mutations and clinical phenotypes in DCM is not thoroughly understood in most cases. Recent advances in biochemical, biophysical, stem cell, and gene editing technologies have provided a better understanding of the molecular mechanisms through which the initial insult in DCM (i.e., mutations in a sarcomere protein) induces alterations in cellular organization and contractility, resulting in disease phenotypes. In particular, hiPSC-CMs and genetically modified animals are excellent models because they can capture the initial molecular phenotype that occurs before major compensatory mechanisms mask it.
[8] Cardiac Phenotype and Gene Mutations in RASopathies
- Authors: M. Faienza, G. Meliota, D. Mentino, R. Ficarella, Mattia Gentile et al.
- Year: 2024
- Venue: Genes
- URL: https://www.semanticscholar.org/paper/a4087d3b73d20a6e2f46b7fb87eed4017ec9a9be
- DOI: 10.3390/genes15081015
- PMID: 39202376
- PMCID: 11353738
- Citations: 9
- Influential citations: 1
- Summary: The molecular mechanisms underlying the development of cardiac diseases associated particularly with NS are clarified, and the main morphological and clinical characteristics of the two most frequent cardiac disorders, namely pulmonary valve stenosis (PVS) and HCM are discussed.
- Evidence snippets:
- Snippet 1 (score: 0.371) > Cardiac involvement is a major feature of RASopathies, a group of phenotypically overlapping syndromes caused by germline mutations in genes encoding components of the RAS/MAPK (mitogen-activated protein kinase) signaling pathway. In particular, Noonan syndrome (NS) is associated with a wide spectrum of cardiac pathologies ranging from congenital heart disease (CHD), present in approximately 80% of patients, to hypertrophic cardiomyopathy (HCM), observed in approximately 20% of patients. Genotype–cardiac phenotype correlations are frequently described, and they are useful indicators in predicting the prognosis concerning cardiac disease over the lifetime. The aim of this review is to clarify the molecular mechanisms underlying the development of cardiac diseases associated particularly with NS, and to discuss the main morphological and clinical characteristics of the two most frequent cardiac disorders, namely pulmonary valve stenosis (PVS) and HCM. We will also report the genotype–phenotype correlation and its implications for prognosis and treatment. Knowing the molecular mechanisms responsible for the genotype–phenotype correlation is key to developing possible targeted therapies. We will briefly address the first experiences of targeted HCM treatment using RAS/MAPK pathway inhibitors.
[9] Changes in Serum Proteomic Profiles at Different Stages of Pregnancy Toxemia in Goats
- Authors: M. Uzti̇mür, C. N. Ünal, Gurler Akpinar
- Year: 2025
- Venue: Journal of Veterinary Internal Medicine
- URL: https://www.semanticscholar.org/paper/4b9c488b5dbd65d7b26fd2ad9aed70e8c4b59942
- DOI: 10.1111/jvim.70139
- PMID: 40492724
- PMCID: 12150350
- Summary: Understanding the serum proteome profiles of goats with pregnancy toxemia might help identify the proteomes and pathways responsible for the development of this disease and improve diagnosis and treatment.
- Evidence snippets:
- Snippet 1 (score: 0.370) > The pathophysiology and progression of this disease are not fully understood. > Traditional biomedical research has focused on the analysis of single genes, proteins, metabolites, or metabolic pathways in diseases. This molecular reductionist approach is based on the assumption that identifying genetic variations and molecular components will lead to new treatments for diseases [13][14][15][16]. However, many diseases are complex and multifactorial, and in order to determine the phenotype of such diseases, it is necessary to understand the changes that occur in more than one gene, pathway, protein, or metabolite at the cellular, tissue, and organismal levels [17][18][19]. Therefore, in recent years, proteomics, as one field of multi-omics technologies, has helped in evaluating the complex pathogenetic mechanisms of different diseases from a broad perspective and has made substantial contributions [20,21]. In veterinary medicine, proteomic analysis of metabolic diseases such as ketosis [16], hypocalcemia [22], and fatty liver [23] in dairy cows has contributed valuable insights for the definition of new pathophysiological pathways and new diagnosis and treatment protocols for these diseases. The proteomic approach can contribute importantly to a broad and detailed understanding of the changes that occur at the organismal level associated with the increase in BHBA concentration in goats with pregnancy toxemia. Our aim was to evaluate the serum protein profiles of goats with SPT or CPT using proteomic techniques to determine the proteomic profiles of these animals and to identify the relevant pathophysiological mechanisms.
[10] Conceptualizing Epigenetics and the Environmental Landscape of Autism Spectrum Disorders
- Authors: G. Torres, Mervat Mourad, Saba Iqbal, Emmanuel Moses-Fynn, Ashani Pandita et al.
- Year: 2023
- Venue: Genes
- URL: https://www.semanticscholar.org/paper/bf76f0682a8a1986ce889cee1fef818480abc83b
- DOI: 10.3390/genes14091734
- PMID: 37761876
- PMCID: 10531442
- Citations: 11
- Summary: The present work reviews recent evolutionary, molecular, and epigenetic mechanisms potentially linked to the etiology of autism, and presents a clinical vignette to describe clusters of maladaptive behaviors frequently diagnosed in autistic patients.
- Evidence snippets:
- Snippet 1 (score: 0.369) > Currently, there are hundreds of gene variants associated with the onset of ASD. Thus, the clinical presentation of the disease is highly variable, as one or more behavioral symptoms may be related to other comorbid conditions (e.g., anxiety disorder, seizure disorder) besides autism. In addition, antagonistic pleiotropy and dosage-sensitive genes further fragment the phenotypic characteristics of ASD. Regardless, here, we present a prototypical autism clinical vignette with five behavioral specifiers: cognitive disability; deficits in social-emotional reciprocity; repetitive or stereotyped motor behavior; improper coordinated language communication; and gastrointestinal distress. Underneath this clinical vignette, we microdissected and correlated a particular phenotype of the disease to functionally and anatomically related regions of the brain and bilateral body plan. The structural organization imposed here will not only identify a wide network of cells, but also specific clusters of genes targeting a particular symptom within behaviorally relevant regions. It is expected that such structural organization will help lay a solid foundation in psychiatry and point to more focused approaches to a deeper understanding of ASD and its individualized treatment (Table 2). Autism Spectrum Disorders can be managed with appropriate pharmacotherapy. Selective dopamine (DA) and serotonin (5HT) based drugs are the mainstay of pharmacological treatment [43,44]. Additional neurotransmitter systems (e.g., norepinephrine (NE) and histamine) are also drug targets. It is not known whether the listed drugs regulate epigenetic mechanisms to counteract autistic symptoms. What is broadly known is that atypical, typical and psychoactive drugs act on DA and 5HT signaling pathways within regions of the human brain (e.g., cortex and basal ganglia) that are behaviorally relevant to the pathophysiology of ASD. Attention Deficit Hyperactivity Disorder (ADHD) and Fragile X Syndrome are debilitating neuropsychiatric conditions commonly diagnosed in pediatric populations. Fragile X Syndrome is a monogenic inherited disease leading to cognitive disability and ASD.
[11] Systems pharmacology-based integration of human and mouse data for drug repurposing to treat thoracic aneurysms.
- Authors: J. Hansen, J. Galatioto, Cristina I. Caescu, P. Arnaud, R. C. Calizo et al.
- Year: 2019
- Venue: JCI insight
- URL: https://www.semanticscholar.org/paper/261628418de4c8b21daeb694301dc1b8759b622d
- DOI: 10.1172/jci.insight.127652
- PMID: 31167969
- Citations: 20
- Summary: System pharmacology approaches that compare patient- and mouse-derived transcriptomic data for subcellular pathway-based drug repurposing represent an effective strategy to identify potential new treatments of human diseases.
- Evidence snippets:
- Snippet 1 (score: 0.365) > TAA with ensuing dissection and rupture of the vessel wall is the clinical hallmark of Marfan syndrome (MFS), a relatively common connective tissue disease associated with mutations in the gene that codes for the multifunctional ECM glycoprotein fibrillin-1 (4,5). Fibrillin-1 assemblies (microfibrils and elastic fibers) impart specific physical properties to tissues, distribute mechanical forces within and across them, communicate to multiple types of vessel wall cells through integrin receptors, and modulate local bioavailability of ECM-bound latent TGF-β complexes (5). In spite of significant research effort, the molecular pathogenesis of arterial disease in MFS remains unresolved, therefore hindering advances in drug therapy. Earlier studies of MFS mice with nondissecting TAA (Fbn1 C1039G/+ mice) have correlated aneurysm onset and progression with increased TGF-β signaling in the media stimulated by improper angiotensin II (AngII) type I receptor (AT1r) activity (6,7). More recent findings indicate a more complex disease mechanism involving the gradual stratification of stress-stimulated interactions among different cell types and multiple regulatory pathways, of which the AT1r and TGF-β signaling pathways are a critical subset (8)(9)(10)(11)(12)(13)(14). > An overview of regulatory pathways and networks associated with a given pathology can often be obtained by examining changes in gene expression during disease progression. Systems pharmacology approaches that consider drug targets as nodes within cellular regulatory networks can use differentially expressed genes (DEGs) to predict dysregulated SCPs that underlie cell-level mechanisms (1,3). Further, computational analyses of the pharmacologically induced perturbations of gene expression listed in the Connectivity Map (CMap) database can predict drugs to be repurposed to normalize dysregulated SCPs (15).
[12] 18O-assisted dynamic metabolomics for individualized diagnostics and treatment of human diseases
- Authors: E. Nemutlu, Song Zhang, N. Juranic, A. Terzic, S. Macura et al.
- Year: 2012
- Venue: Croatian Medical Journal
- URL: https://www.semanticscholar.org/paper/880f053c7f060db4b990e447d0a22c4b69372ddb
- DOI: 10.3325/cmj.2012.53.529
- PMID: 23275318
- PMCID: 3541579
- Citations: 28
- Summary: The potential use of dynamic phosphometabolomic platform for disease diagnostics currently under development at Mayo Clinic is described and discussed briefly.
- Evidence snippets:
- Snippet 1 (score: 0.361) > Living cells represent an integrated and interacting network of genes, transcripts, proteins, small signaling molecules, and metabolites that define cellular phenotype and function. Traditionally the focus of biomedical research was on individual genes, single protein targets, single metabolites, and metabolic or signaling pathways. This "molecular reductionist" paradigm was based on the assumption that identifying genetic variations and molecular components would lead to discovery of cures for human diseases. However, most of diseases are complex and multi-factorial and the disease phenotype is determined by the alterations of multiple genes, pathways, proteins and metabolites (at cellular, tissue, and organismal levels). Therefore, an integrated "omics" approach is more viable direction for uncovering alterations in metabolic networks, disease mechanisms, and mechanisms of drug effects. > Recent advent of large-scale metabolomics and fluxomic (metabolite dynamics and metabolic flux analysis) completed the "omics revolution" (Figure 1), where genomics, transcriptomics, proteomics, metabolomics, and fluxomics all together complement phenotype determination of living organism. Such integrated "omics" cascades provide a framework for advances in system and network biology, integrative physiology, and system medicine as well as system pharmacology and regenerative medicine. Noteworthy is the "reverse omic" approach or "metabolomicsinformed pharmacogenomics, " where discovery of specific metabolite changes have led to discovery of genetic alterations (2). Therefore, bringing new "omics" technologies to clinical practice will improve disease diagnostics and treatment by targeting drugs and procedures for each unique transcriptomic and metabolomic profiles.
[13] Epigenetic Insights into Tuberous Sclerosis Complex, Von Hippel–Lindau Syndrome, and Ataxia–Telangiectasia
- Authors: Gavriel Hadjigavriel, Christina Stylianides, Evangelos Axarloglou, M. Manthou, E. Vakirlis et al.
- Year: 2025
- Venue: Epigenomes
- URL: https://www.semanticscholar.org/paper/5643fde916e6d150423d2be7a32508e11fb6b6f8
- DOI: 10.3390/epigenomes9020020
- PMID: 40558831
- PMCID: 12191455
- Citations: 1
- Summary: Current evidence on the epigenetic landscape of these syndromes is consolidated, elucidating how modifications may influence disease behavior and contribute to incomplete genotype–phenotype correlations by integrating epigenetic insights with known molecular pathways.
- Evidence snippets:
- Snippet 1 (score: 0.358) > Neurocutaneous syndromes represent a clinically and genetically heterogeneous group of disorders, with tuberous sclerosis complex (TSC), von Hippel–Lindau syndrome (VHL), and ataxia–telangiectasia (A-T) exemplifying some of the most complex entities within this category. These syndromes have traditionally been considered monogenic disorders, caused by germline mutations in tumor suppressor or regulatory genes. However, they exhibit a striking degree of phenotypic variability and divergent clinical trajectories that cannot be fully explained by their underlying genetic alterations alone. Increasingly, epigenetic regulatory mechanisms, such as DNA methylation, histone modifications, chromatin remodeling, and non-coding RNA (ncRNA) activity, are recognized as key modulators of gene expression, cellular differentiation, and tissue-specific function. Disruption of these mechanisms has been implicated in disease pathogenesis, tumorigenesis, and neurodegeneration associated with TSC, VHL, and A-T. Aberrant epigenetic profiles may underlie the observed variability in clinical outcomes, even among individuals with identical mutations. This review consolidates current evidence on the epigenetic landscape of these syndromes, elucidating how these modifications may influence disease behavior and contribute to incomplete genotype–phenotype correlations. By integrating epigenetic insights with known molecular pathways, a more nuanced understanding of disease biology emerges, with potential implications for diagnostic stratification, prognostic assessment, and therapeutic innovation.
[14] Placing joint hypermobility in context: traits, disorders and syndromes
- Authors: S. Morlino, M. Castori
- Year: 2023
- Venue: British Medical Bulletin
- URL: https://www.semanticscholar.org/paper/dfc6a2564a6ebb5bf7b04e626232162747748a6b
- DOI: 10.1093/bmb/ldad013
- PMID: 37350130
- PMCID: 10689077
- Citations: 17
- Summary: In the clinical context, elucidation of the pathophysiology of pain related to JHM should develop in parallel with the analysis of pleiotropic manifestations of syndromes with JHM, and current limitations and disagreements concerning the ‘spectrum’, HSD and HEDS are discussed.
- Evidence snippets:
- Snippet 1 (score: 0.358) > Treating JHM-related MSK pain can be difficult because people are often referred to the 'expert' after years of evolving symptoms. Current understanding of the mechanisms which underlie JHMrelated MSK pain identifies a progression from soft tissue/joint traumas facilitated by JHM, to pain chronicity, to fluctuating disability (Fig. 3). Treatment follows an integrated, biopsychosocial approach 42 that considers pain as the summation of a multitude of intermingled mechanisms. Available strategies, such as physiotherapy, painkiller drugs and cognitive-behavioral therapy, are not always effective in the medium and long terms, and accessibility to tailored programs is not guaranteed in all healthcare systems. The availability of patient pathways emerging from the coordinated work of transnational initiatives, such as the European Reference Networks for rare and complex diseases and international foundations like the Ehlers-Danlos Society, facilitates standardization of treatment accessibility and delivery within the various healthcare systems. Similar needs are found for the syndromic patient who requests periodic follow-up for the early detection and treatment of late-onset complications related to the pleiotropic manifestations of the identified genetic mutation. > Cardiovascular and hollow organ involvement and, in particular, the risk of life-threatening events represent the most severe, though relatively rare manifestation of specific EDS subtypes. Spontaneous arterial ruptures are a major feature of vascular EDS but may occur at lower rates in other EDS clinical subtypes. 45 Preliminary genotype-phenotype correlations suggest a variable severity of cardiovascular involvement in vascular EDS according to the mutation type. 33 Much less information is available for the other EDS subtypes with a documented or presumed increased risk of vascular events. 46 Given the unpredictability of arterial and hollow organ ruptures in EDS, and the complexities generated by the tissue fragility in the emergency room, risk prediction according to patients' stratification and availability of risk reduction procedures are aims for the future. The identification of innovative drugs for treating pain and improving tissue fragility should become an emerging field of pre-clinical and clinical research in EDS and related disorders.
[15] Common immunopathogenesis of central nervous system diseases: the protein-homeostasis-system hypothesis
- Authors: Kyung-Yil Lee
- Year: 2022
- Venue: Cell & Bioscience
- URL: https://www.semanticscholar.org/paper/2984270ae67451b93007040848d9694d19714c9f
- DOI: 10.1186/s13578-022-00920-5
- PMID: 36384812
- PMCID: 9668226
- Citations: 9
- Influential citations: 1
- Summary: This article proposes a common immunopathogenesis of CNS diseases, including prion diseases, Alzheimer’s disease, and genetic diseases, through the PHS hypothesis, which proposes that the immune systems in the host control those substances according to the size and biochemical properties of the substances.
- Evidence snippets:
- Snippet 1 (score: 0.358) > There are hundreds of genetic diseases of the CNS. The defective proteins in genetic disorders include structural proteins for neurotransmitter receptors and other receptors or ion channels on CNS cells, and proteins involved in enzymatic process, metabolism (transport), or signal transduction pathways in various communication systems [98]. Because a discussion of each genetic disease is beyond the scope of this review, only crucial points about the pathogenesis of genetic diseases are discussed. Singlegene defect diseases of the CNS can be caused by a defective product from a gene, i.e., a protein deficiency or a malfunctioning protein. In general, autosomal dominant genetic diseases are caused by structural protein defects, and autosomal recessive diseases are caused by defects in enzymatic proteins. However, certain genetic diseases that involve an enzymatic or multifunctional protein defect can induce structural cell injury during the natural course of the illness. > Patients with genetic diseases, including HD, familial JCD, GSS, and the genetic forms of AD and PD, show different clinical manifestations from other affected people in their family, including the time of onset of neurological symptoms, speed of progression of the disease, and prognosis, suggesting that phenotypes can vary even when the genotypes are identical. Likewise, similar phenotypes of CNS symptoms can be found in different genetic diseases. In genetic animal models, the phenotypes of single gene knockout can vary by strain in mice, and the clinical manifestations of a gene defect can differ between mice and humans, and mice null for some genes have also no observable phenotypic abnormalities compared with controls [99]. These findings suggest that default of a protein might be at least partly controlled by individual's control systems and that there might exist a similar immune/repair system against cell injury in genetic diseases. > The pathophysiology of most genetic diseases in the CNS is complex because any affected gene is associated with numerous proteins and their corresponding activations of genes and epigenetic changes that occur during disease processes. Thus, the use of a genetic marker for diagnosing or predicting a prognosis remains impractical in clinical settings [100].
[16] The hyperornithinemia–hyperammonemia-homocitrullinuria syndrome
- Authors: D. Martinelli, D. Diodato, Emanuela Ponzi, M. Monné, S. Boenzi et al.
- Year: 2015
- Venue: Orphanet Journal of Rare Diseases
- URL: https://www.semanticscholar.org/paper/ed033868ee677da141e5c926bc7c93cac242ea06
- DOI: 10.1186/s13023-015-0242-9
- PMID: 25874378
- PMCID: 4358699
- Citations: 93
- Influential citations: 5
- Summary: The clinical phenotype of HHH syndrome is extremely variable and its severity does not correlate with the genotype or with recorded ammonium/ornithine plasma levels, suggesting the need for a better understanding of the still unsolved pathophysiology of the disease.
- Evidence snippets:
- Snippet 1 (score: 0.356) > Although the disease responds well to treatment with low risk of relapse of hyperammonemia [38], slowly progressive pyramidal signs characterize the chronic course, as also seen in argininemia [89]. However, the mechanism(s) of pyramidal dysfunction in HHH syndrome still remains to be elucidated. Creatine deficiency may contribute to the pathogenetic mechanism of the syndrome, as creatine is relevant for mitochondrial energy metabolism, regulation of glycolysis, proteins synthesis, membrane stabilization and neuromodulation [77,78,85]. This could be in line with the finding of abnormally shaped mitochondria at electron microscopy studies in skin fibroblasts, hepatocytes and muscle biopsy from HHH syndrome patients [11,23,82]. Furthermore, a mitochondrial dysfunction has been recently related to the effects of ornithine and homocitrulline in causing oxidative stress and disturbed mitochondrial homeostasis [79,80]. > A further mechanism that can be involved in the pathophysiology of HHH syndrome is related to polyamines metabolism. Shimizu and colleagues reported increased total and fractional (putrescine, cadaverine, spermine, spermidine) polyamines in one HHH syndrome patient [30]. Indeed, the clinical similarities between HHH syndrome and argininemia, which has been associated to an abnormal polyamine metabolism [91,92], may suggest a common pathogenetic mechanism causing pyramidal dysfunction. > Overall, the pathogenesis of HHH syndrome is complex and not completely understood. It is likely that different mechanisms, including the impact of low mitochondrial ornithine on UC flux, the presence of hyperammonemic crises and the disturbance of other pathways in major organs play a role in determining the heterogeneous clinical presentation of ORC1 deficiency. > In addition, as molecular studies failed to disclose a correlation between type of mutations or ornithine transport capacity and disease severity, an effect of genetic modifiers, such as ORC genes redundancy, seems to be likely, but further studies are certainly needed to clarify this point.
[17] Mitochondrial Biomarkers in the Omics Era: A Clinical-Pathophysiological Perspective
- Authors: J. Gervasoni, A. Primiano, M. Cicchinelli, L. Santucci, Serenella Servidei et al.
- Year: 2024
- Venue: International Journal of Molecular Sciences
- URL: https://www.semanticscholar.org/paper/07c164ce4ffbef88bb87a0761bc653dfb74eeeb0
- DOI: 10.3390/ijms25094855
- PMID: 38732076
- PMCID: 11084339
- Citations: 4
- Summary: Omics technologies such as proteomics and metabolomics considered in this review, can support unresolved mitochondrial questions, helping to improve outcomes for patients.
- Evidence snippets:
- Snippet 1 (score: 0.356) > Mitochondrial diseases represent a large collection of rare neurometabolic syndromes characterized by extremely difficult clinical management, both chronically and during acute events. This condition is due to a lack of complete understanding of the metabolic and molecular mechanisms involved in the pathogenesis, and also to the absence of reliable diagnostic and prognostic biomarkers that are able to identify the disease in its multiple clinical manifestations and monitor its progression. Although genetic testing provides secure diagnoses, heteroplasmy, and gaps in knowledge of pathological mechanisms limit genomics in offering a comprehensive spectrum of diseases and their variations in severity and progression. Additionally, the absence of validated biomarkers has made identifying new therapies a challenge [24,25]. > Several techniques have developed to interrogate this complex process in multiple dimensions (DNA, RNA, proteins, and metabolites), known as "omics". These disciplines allow to investigate the different classes of biological components (genes-genomic, proteinsproteomic, and metabolites-metabolomic) that determine the phenotype of an organism. Different analytical techniques (Fourier transform infrared spectroscopy (FT-IR), Raman spectroscopy, mass spectrometry (MS) and nuclear magnetic resonance spectroscopy (NMR) are used to identify either the metabolite patterns that are significant for the determination of the metabolic phenotype of the system under investigation, or the proteins used to determine of the alteration in the proteomic asset that can be identified as a possible marker of disease. Metabolomics and proteomic studies can be conducted with targeted, semi-targeted, and untargeted analytical approaches. Analysis is usually performed on multiple biological fluids: urine, saliva, plasma or serum, cerebrospinal fluid, cell cultures, tissue extracts, or biopsies. Through metabolic analysis, we can measure the metabolic profile, obtaining a fingerprint determined by the perturbation that is characteristic of the pathogenetic process [26].
[18] Sanfilippo Syndrome: Molecular Basis, Disease Models and Therapeutic Approaches
- Authors: Noelia Benetó, L. Vilageliu, D. Grinberg, I. Canals
- Year: 2020
- Venue: International Journal of Molecular Sciences
- URL: https://www.semanticscholar.org/paper/80f8e4e1b87f7a316de9bd4e7fbd5ac14ed7af1c
- DOI: 10.3390/ijms21217819
- PMID: 33105639
- PMCID: 7659972
- Citations: 41
- Influential citations: 2
- Summary: An update in advances regarding the different and most successful therapeutic approaches that are currently under study to treat Sanfilippo syndrome patients and the potential of new tools such as induced pluripotent stem cells to be used for disease modeling and therapy development are discussed.
- Evidence snippets:
- Snippet 1 (score: 0.354) > With this review, we provided an overview of the molecular basis of Sanfilippo syndrome and a summary of the main animal and cellular models available to date, which can be used to test the different therapeutic approaches.For many years, animal models have been the gold-standard to investigate disease mechanisms and to develop and test therapeutic options.However, the fundamental differences between animal and human brain structure and development, as well as the higher complexity of human organs and cells, are major factors that should be taken into account when performing a study.Findings relevant in animal models might not be important in the context of human physiology, pointing out the importance of generating human cellular models to complement the existing animal models.In the last years, several Sanfilippo-iPSC lines have been established and, in combination with faster and improved protocols to generate relevant cell types in 2D and 3D cultures [125][126][127], will contribute to expand our understanding of the molecular and cellular mechanisms of the disease.In addition, iPSC-derived brain cells will be very useful in drug screening studies to identify possible drug candidates with the potential to treat human brain cells.To date, several potential therapies have been tested, however gene therapy seems to be the approach generating a better outcome.It is crucial to follow the ongoing clinical trials for this therapy considering the very promising results of previous studies.Nevertheless, efforts should also be made to develop and assess other possible approaches for the treatment of patients suffering from this devastating disorder.
[19] Genetic determinants of clinical phenotype in hypertrophic cardiomyopathy
- Authors: L. Velicki, D. Jakovljevic, A. Preveden, M. Golubovic, M. Bjelobrk et al.
- Year: 2020
- Venue: BMC Cardiovascular Disorders
- URL: https://www.semanticscholar.org/paper/5b4558af699aad557a802ddc5c280ae601c2d56f
- DOI: 10.1186/s12872-020-01807-4
- PMID: 33297970
- PMCID: 7727200
- Citations: 55
- Influential citations: 2
- Summary: Major findings of the present study corroborate the notion that MYH7 gene mutation patients are presented with more pronounced disease severity than those with MYBPC3.
- Evidence snippets:
- Snippet 1 (score: 0.354) > ]. Technological progress has made it possible to identify new genes associated with HCM-numerous other genes that do not encode sarcomere proteins but rather genes encoding the synthesis of Z-disk proteins and proteins involved in the calcium signaling pathway. With the introduction and implementation of the next-generation sequencing solutions, the identification of nearly 50 gene mutations associated with some form of HCM throughout literature has become possible [12]. > Regardless of the mutation type, the same pathophysiology mechanisms are responsible for the development of typical HCM phenotype and disease progression. Disrupted sarcomere properties due to the mutations cause impaired relaxation and lead to diastolic dysfunction, which is followed by hyperdynamic contractility and hypertrophy of the LV in the later course [9,11]. > Due to variable penetrance and expressivity, the phenotypic characteristics of HCM are multifaceted and may be influenced by other factors beyond single pathogenic mutations [13]. In addition to LV hypertrophy, phenotypic HCM expression also includes myocardial hypercontractivity, myofibril disorganization, fibrosis, as well as the presence of mild myocardial inflammation. Although the clinical phenotype can partially differ depending on the affected gene, no distinctive correlation between disease severity and specific genes has been established. Moreover, clinical features such as disease penetration, hypertrophy severity, and patient prognosis are known to vary depending on different mutations within the same gene [11]. > The precise link between determined underlying gene mutation and the clinical course remains elusive in this heterogeneous condition. The motivation to compile this HCM patient registry was to try to define what patient features are more prevalent with specific gene mutations and to establish whether the level of disease expression might be linked to one of the two most common mutations responsible for HCM. The goal was to reveal and distinguish subtle differences that may exist in clinical presentation and, more importantly, in heart structure and function recorded by cardiac imaging (i.e. echocardiography) between different gene mutations, thus providing essential information for the computational model development. Moreover, data from this study will also complement the clinical trial (NCT03832660 at clinicaltrials.gov) evaluating the effects of pharmacological (sacub
[20] Investigating the role of NPR1 in dilated cardiomyopathy and its potential as a therapeutic target for glucocorticoid therapy
- Authors: Yaomeng Huang, Tongxin Li, Shichao Gao, Shuyu Li, Xiaoran Zhu et al.
- Year: 2023
- Venue: Frontiers in Pharmacology
- URL: https://www.semanticscholar.org/paper/be229f6f2059faab4c97ec0a04bd055adab9dfe1
- DOI: 10.3389/fphar.2023.1290253
- PMID: 38026943
- PMCID: 10662320
- Citations: 3
- Summary: Natriuretic peptide receptor 1 (NPR1) was identified as a core gene associated with DCM through bioinformatics analysis and led to substantial improvements in cardiac and renal function, accompanied by an upregulation of NPR1 expression.
- Evidence snippets:
- Snippet 1 (score: 0.354) > Multiple pathways and molecules are involved in this process; however, the detailed underlying mechanisms remain unclear. In recent years, with the development of high-throughput sequencing and gene chip technologies, the use of bioinformatics technology to explore the occurrence, development, and prognosis of diseases has become a hot topic for scholars worldwide (Hwang et al., 2018;Nayor et al., 2019;Rinschen et al., 2019;Sturm et al., 2019;Montaner et al., 2020). > The present study aimed to use bioinformatics technology to screen for DCM-related genes and investigate their mechanisms, with the purpose of revealing the pathogenesis of DCM and seeking treatment methods. The GSE3586 dataset, containing expression profiles related to DCM, was selected from the Gene Expression Omnibus (GEO) database. This study aimed to predict the core genes that may play crucial roles in disease progression at the molecular level through the enrichment of relevant molecular pathways associated with DCM. Furthermore, the phenotype of the core genes was validated to further support the results of the bioinformatics analysis through basic and clinical experiments. Additionally, the role of glucocorticoids in DCM treatment is discussed in this article with the purpose of providing a theoretical and experimental basis for exploring the pathogenesis of DCM and elucidating therapeutic methods. This study also provides a theoretical reference for the interpretation, early diagnosis, and treatment of DCM.
Notes
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