Metabolome Changes during In Vivo Red Cell Aging Reveal Disruption of Key Metabolic Pathways.

ABSTRACT: Understanding the mechanisms for cellular aging is a fundamental question in biology. Normal red blood cells (RBCs) survive for approximately 100 days, and their survival is likely limited by functional decline secondary to cumulative damage to cell constituents, which may be reflected in altered metabolic capabilities. To investigate metabolic changes during in vivo RBC aging, labeled cell populations were purified at intervals and assessed for abundance of metabolic intermediates using mass spectrometry. A total of 167 metabolites were profiled and quantified from cell populations of defined ages. Older RBCs maintained ATP and redox charge states at the cost of altered activity of enzymatic pathways. Time-dependent changes were identified in metabolites related to maintenance of t

SUBMITTER: Jamshidi N 

PROVIDER: S-EPMC7575880 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature