Organism-wide, cell-type-specific secretome mapping of exercise training in mice

Cell Metab. 2023 Jul 11;35(7):1261-1279.e11. doi: 10.1016/j.cmet.2023.04.011. Epub 2023 May 3.

Abstract

There is a significant interest in identifying blood-borne factors that mediate tissue crosstalk and function as molecular effectors of physical activity. Although past studies have focused on an individual molecule or cell type, the organism-wide secretome response to physical activity has not been evaluated. Here, we use a cell-type-specific proteomic approach to generate a 21-cell-type, 10-tissue map of exercise training-regulated secretomes in mice. Our dataset identifies >200 exercise training-regulated cell-type-secreted protein pairs, the majority of which have not been previously reported. Pdgfra-cre-labeled secretomes were the most responsive to exercise training. Finally, we show anti-obesity, anti-diabetic, and exercise performance-enhancing activities for proteoforms of intracellular carboxylesterases whose secretion from the liver is induced by exercise training.

Keywords: CES2; cell type; energy metabolism; exercise; exercise performance; hepatokine; obesity; secretome; tissue crosstalk.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Diabetes Mellitus*
  • Mice
  • Obesity
  • Proteins
  • Proteomics
  • Secretome*

Substances

  • Proteins