Deciphering Protein Secretion from the Brain to Cerebrospinal Fluid for Biomarker Discovery.

ABSTRACT: Cerebrospinal fluid (CSF) is an essential matrix for the discovery of neurological disease biomarkers. However, the high dynamic range of protein concentrations in CSF hinders the detection of the least abundant protein biomarkers by untargeted mass spectrometry. It is thus beneficial to gain a deeper understanding of the secretion processes within the brain. Here, we aim to explore if and how the secretion of brain proteins to the CSF can be predicted. By combining a curated CSF proteome and the brain elevated proteome of the Human Protein Atlas, brain proteins were classified as CSF or non-CSF secreted. A machine learning model was trained on a range of sequence-based features to differentiate between CSF and non-CSF groups and effectively predict the brain origin of proteins. The classi

SUBMITTER: Waury K 

PROVIDER: S-EPMC10476268 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature