Abstract
The dysregulation of phosphorylation networks plays a critical role in the pathogenesis of a wide spectrum of brain disorders, including Alzheimer's disease, Parkinson's disease, Huntington's disease, amyotrophic lateral sclerosis, traumatic brain injury, ischemic stroke, drug abuse, major depressive disorder, and schizophrenia. Notably, phosphorylated isoforms of microtubule-associated protein tau and neurofilament heavy polypeptide are already utilized in clinical diagnostics, highlighting the promise of protein phosphorylation signatures as biomarkers for prediction, diagnosis, prognosis, and treatment monitoring. Recent advances in deep phosphoproteomic technologies now facilitate the comprehensive mapping of phosphorylation alterations across diverse biological samples and disease stages. This review summarizes current phosphoproteomic studies aimed at identifying biomarkers for brain disorders and elaborates on the promising application of phosphorylated proteins in this context.
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