Protein citrullination (PC) is a posttranslational modification (PTM) that converts a peptidyl arginine into a peptidyl citrulline. Aberrant PC is a hallmark of neurodegenerative diseases, including amyotrophic lateral sclerosis (ALS), Alzheimer's disease, Parkinson's disease, prion disease, and multiple sclerosis. Common among these diseases is a dramatic increase of PC in reactive astrocytes. Some citrullinated proteins have been identified. The most prominent are astrocytic cytoskeletal proteins such as GFAP and vimentin, and myelin protein MBP. Recent investigation in ALS has revealed new changes, including a decreased PC in neurons and an association of PC with myelin protein aggregates. These findings suggest that PC contributes to protein aggregation, neuronal dysfunction, neuroinflammation, and axonal degeneration. However, how PC impact neurodegeneration remains to be understood. Further studies are needed to understand a range of questions, from how PC modulates individual protein functions to its impact on diseases. Because of the PC's robust changes in neurodegenerative diseases, there are also prospects that this PTM may be harnessed as biomarkers, and modulation of this PTM may be an avenue for therapy. In this review, we summarize the current understanding of PC in ALS and other neurodegenerative diseases, the investigative methods for PC, and PC's potential as a biomarker and a therapeutic target.
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http://dx.doi.org/10.33696/neurol.5.101 | DOI Listing |
Expert Opin Ther Pat
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Department of Pharmaceutical Chemistry, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki, Greece.
Introduction: Neuroinflammation is correlated to neurodegenerative diseases like Alzheimer's disease (AD), Amyotrophic Lateral Sclerosis (ALS), Multiple Sclerosis (MS), Huntington Disease (HD) and Parkinson's disease (PD). A lot of recent research and patents are focused on the design and synthesis of arachidonic acid Lipoxygenase (ALOX) inhibitors for the treatment of neurodegenerative diseases.
Areas Covered: The survey covers natural products, synthesis, hybrids, and assessments of biological effects in biological studies as ALOX inhibitors.
Clin Park Relat Disord
November 2024
Department of Neurology, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand.
Introduction: Creutzfeldt-Jakob disease (CJD) is a rare, rapidly progressive, fatal, neurodegenerative disease classified as prion diseases. There are many subtypes of this disease, but information about clinical presentation and investigation findings in Thailand is scarce.
Objective: To describe the clinical presentation, radiological and electroencephalographic characteristics of CJD encountered at Siriraj hospital in the past 10 years (between January 1, 2006 and December 31, 2015).
Toxicol Rep
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Department of Animal Sciences, Central University of Himachal Pradesh Shahpur Campus, Kangra 176206, India.
Pesticides are widely used to control pests, but their widespread use raises concerns regarding potential health risks for humans. There are several routes through which pesticides can be ingested, inhaled, and absorbed, resulting in acute and long-term health consequences. This systematic review synthesizes the available evidence regarding the health risks and long-term effects of pesticide exposure, with a particular focus on epidemiological and toxicological studies.
View Article and Find Full Text PDFFront Cell Dev Biol
December 2024
Department of Biochemistry, Memorial University of Newfoundland, St. John's, NL, Canada.
PIWI-interacting RNAs (piRNAs) are small non-coding RNAs that bind to the PIWI subclass of the Argonaute protein family and are essential for maintaining germline integrity. Initially discovered in , PIWI proteins safeguard piRNAs, forming ribonucleoprotein (RNP) complexes, crucial for regulating gene expression and genome stability, by suppressing transposable elements (TEs). Recent insights revealed that piRNAs and PIWI proteins, known for their roles in germline maintenance, significantly influence mRNA stability, translation and retrotransposon silencing in both stem cells and bodily tissues.
View Article and Find Full Text PDFFront Immunol
December 2024
Department of Otolaryngology, The Second Affiliated Hospital of the Army Military Medical University, Chongqing, China.
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