Objective: Neurodegenerative diseases are often characterized by the presence of intracellular or extracellular protein aggregates in the central nervous system. Mutations of TARDBP gene have been shown to cause Amyotrophic Lateral Sclerosis and have been reported to present with clinical heterogeneity including parkinsonism. TDP-43 pathology has been observed across a spectrum of neurodegenerative disorders, including Alzheimer's and Parkinson's disease.
Methods: In this study we screened 100 sporadic and 165 familial PD patients and control series (450) for the TARDBP gene. All cases and controls included in this study were born and living in Calabria.
Results: The p.N267S heterozygous mutation was detected in one sporadic PD patient. The p.N267S mutation was not found in a control population of 450 healthy individuals and in our 165 familial PD.
Conclusions: Sequencing of the TARDBP gene in our patient cohort identified one sporadic PD carrying the p.N267S mutation. This is the first analysis of TARDBP mutation in sporadic PD patient from South Italy.
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http://dx.doi.org/10.1016/j.jns.2018.04.043 | DOI Listing |
J Neuroinflammation
January 2025
Department of Neurology, Center for Medical Research on Innovation and Translation, Institute of Clinical Medicine, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China.
Abnormality in transactivating response region DNA binding protein 43 (TDP43) is well-recognized as the pathological hallmark of neurodegenerative diseases. However, the role of TDP43 in neuromyelitis optica spectrum disorder (NMOSD) remains unknown. Here, our observations demonstrate an upregulation of TDP43 in both in vitro and in vivo models of NMOSD, as well as in biological samples from NMOSD patients.
View Article and Find Full Text PDFJ Biol Chem
January 2025
Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA 92093, USA. Electronic address:
TAR DNA-binding protein (TDP-43) and Metastasis Associated Lung Adenocarcinoma Transcript (MALAT1) RNA are both abundantly expressed in the human cell nucleus. Increased interaction of TDP-43 and MALAT1, as well as dysregulation of TDP-43 function, was previously identified in brain samples from patients with neurodegenerative disease compared to healthy brain tissues. We hypothesized that TDP-43 function may depend in part on MALAT1 expression levels.
View Article and Find Full Text PDFBiochim Biophys Acta Mol Basis Dis
January 2025
The Key Laboratory of Advanced Interdisciplinary Studies, Institute for Chemical Carcinogenesis, School of Public Health, Guangzhou Medical University, 1 Xinzao Road, Panyu District, Guangzhou 511436, PR China. Electronic address:
Heterogeneous nuclear ribonucleoprotein A2B1 (HNRNPA2B1), a member of the A/B subfamily of hnRNPs, plays a critical role in tumorigenesis, yet its expression patterns, molecular mechanisms, and prognostic significance remain inadequately characterized. In this study, we performed a comprehensive pan-cancer analysis utilizing multiple public databases, revealing that HNRNPA2B1 is consistently overexpressed in most tumor types and correlates with poor prognosis across several malignancies. Pathway enrichment analysis highlighted its involvement in RNA alternative splicing, transport, and stability, processes that contribute to tumor progression.
View Article and Find Full Text PDFActa Neuropathol Commun
December 2024
Shenzhen Baoan Traditional Chinese Medicine Hospital, Guangzhou University of Chinese Medicine, Shenzhen, Guang Dong, 518000, China.
TAR DNA-binding protein 43 (TDP-43) has emerged as a critical player in neurodegenerative disorders, with its dysfunction implicated in a wide spectrum of diseases including amyotrophic lateral sclerosis (ALS), frontotemporal lobar degeneration (FTLD), and Alzheimer's disease (AD). This comprehensive review explores the multifaceted roles of TDP-43 in both physiological and pathological contexts. We delve into TDP-43's crucial functions in RNA metabolism, including splicing regulation, mRNA stability, and miRNA biogenesis.
View Article and Find Full Text PDFSci Rep
December 2024
Neurogenetics Department, The Cyprus Institute of Neurology and Genetics, Nicosia, Cyprus.
Amyotrophic lateral sclerosis (ALS) is a devastating, uniformly lethal degenerative disease of motor neurons, presenting with relentlessly progressive muscle atrophy and weakness. More than fifty genes carrying causative or disease-modifying variants have been identified since the 1990s, when the first ALS-associated variant in the gene SOD1 was discovered. The most commonly mutated ALS genes in the European populations include the C9orf72, SOD1, TARDBP and FUS.
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