Decoding Neurodegeneration: Unraveling the Network of Protein Clumps and Neuron Loss

Published on June 27, 2022

Neurodegenerative diseases, like Alzheimer’s, Parkinson’s, ALS, and Huntington’s, all share a common thread – the buildup of misfolded proteins and the gradual decline of neurons. Think of it like cleaning a messy room; different diseases create their own unique messes in different parts of the brain. With an abundance of research on various processes associated with these diseases, it’s becoming harder to see the big picture. But fear not! This meta-study takes a bird’s-eye view by analyzing genomic, transcriptomic, proteomic, and epigenomic data from 234 studies to uncover overarching patterns and specific processes on a molecular level. Although we only touch on a few findings here, this comprehensive study serves as a treasure trove for other scientists investigating specific genetic or biochemical factors contributing to neurodegeneration.

The common features of all neurodegenerative diseases, including Alzheimer’s disease, Parkinson’s disease, Amyotrophic Lateral Sclerosis (ALS), and Huntington’s disease, are the accumulation of aggregated and misfolded proteins and the progressive loss of neurons, leading to cognitive decline and locomotive dysfunction. Still, they differ in their ultimate manifestation, the affected brain region, and the kind of proteinopathy. In the last decades, a vast number of processes have been described as associated with neurodegenerative diseases, making it increasingly harder to keep an overview of the big picture forming from all those data. In this meta-study, we analyzed genomic, transcriptomic, proteomic, and epigenomic data of the aforementioned diseases using the data of 234 studies in a network-based approach to study significant general coherences but also specific processes in individual diseases or omics levels. In the analysis part, we focus on only some of the emerging findings, but trust that the meta-study provided here will be a valuable resource for various other researchers focusing on specific processes or genes contributing to the development of neurodegeneration.

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