• Heart;
  • Pericardial fluid;
  • Systems biology

Pericardial fluid (PF) is considered as a biochemical window of heart. To date, there have been limited attempts to perform an in-depth analysis of the PF proteome. In this study, an SDS-PAGE-LC-MS/MS platform was utilized to explore depleted PF, which showed great coverage of low-abundant proteins. In total, 1007 nonredundant proteins were identified with at least two peptides. This is the first comprehensive analysis of human PF proteome and provides a foundation for further application of PF in cardiovascular research. The data have been deposited to the ProteomeXchange with identifier PXD000194.