A new insight into the exosome protein and lipid composition in camel colostrum and mature milk using comparative proteome and lipidomics analyses.

ABSTRACT: Camel milk exosomes from colostrum (C) and mature milk (M) were characterized using proteomics and lipidomics to elucidate their compositional and functional differences. Isolated exosomes exhibited round and cup-like concave spheres of 30 to 150 nm and higher TSG101 expression in colostrum. Proteomic analysis identified 2479 proteins, with 843 differentially expressed (357 upregulated, 486 downregulated) between C and M, enriched in PI3K-AKT signaling, endocytosis, and complement/coagulation pathways, suggesting roles in immune regulation and neonatal development. Lipidomics revealed 1783 lipid species (37 subclasses), with 149 significantly altered between C and M, including SM (d42:4; FC = 221.887) and LPE (18:3; FC = 0.139). Colostrum exosomes were enriched in sphingomyelins and glycer

SUBMITTER: Ming L 

PROVIDER: S-EPMC12369441 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature