Proteomics

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Systematic profiling of lysine lactylation proteome reveals distinct changes in lactylation between the parental AGS cells and cisplatin-resistant AGS cells


ABSTRACT: Lactate enable to cause a novel post-translational modification, lactylation of proteins. We are interested in exploring whether lactate modulates DNA-damaging agents resistance in the form of lactylation. To gain a global view of DNA-damaging agents resistance-related lactylation, especially Kla of nonhistone substrates, we used 4D-Label free high-resolution LC-MS/MS, quantitative lysine lactylation analysis to investigate Kla substrates in cisplatin-resistant AGS cells.

INSTRUMENT(S): timsTOF

ORGANISM(S): Homo Sapiens (human)

TISSUE(S): Cell Culture

SUBMITTER: Hengxing Chen  

LAB HEAD: Hengxing Chen

PROVIDER: PXD050906 | Pride | 2024-05-09

REPOSITORIES: Pride

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The Warburg effect is a hallmark of cancer that refers to the preference of cancer cells to metabolize glucose anaerobically rather than aerobically<sup>1,2</sup>. This results in substantial accumulation of lacate, the end product of anaerobic glycolysis, in cancer cells<sup>3</sup>. However, how cancer metabolism affects chemotherapy response and DNA repair in general remains incompletely understood. Here we report that lactate-driven lactylation of NBS1 promotes homologous recombination (HR)-  ...[more]

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