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Comp Biochem Physiol Part D Genomics Proteomics January 1, 2017; 22 39-49.

iTRAQ reveals proteomic changes during intestine regeneration in the sea cucumber Apostichopus japonicus.

Sun L , Xu D , Xu Q , Sun J , Xing L , Zhang L , Yang H .

Sea cucumbers have a striking capacity to regenerate most of their viscera after evisceration, which has drawn the interest of many researchers. In this study, the isobaric tag for relative and absolute quantitation (iTRAQ) was utilized to investigate protein abundance changes during intestine regeneration in sea cucumbers. A total of 4073 proteins were identified, and 2321 proteins exhibited significantly differential expressions, with 1100 upregulated and 1221 downregulated proteins. Our results suggest that intestine regeneration constitutes a complex life activity regulated by the cooperation of various biological processes, including cytoskeletal changes, extracellular matrix (ECM) remodeling and ECM-receptor interactions, protein synthesis, signal recognition and transduction, energy production and conversion, and substance transport and metabolism. Additionally, real-time PCR showed mRNA expression of differentially expressed genes correlated positively with their protein levels. Our results provided a basis for studying the regulatory mechanisms associated with sea cucumber regeneration.

PubMed ID: 28189057
Article link: Comp Biochem Physiol Part D Genomics Proteomics