Objective To explore the possible mechanisms by which Schistosoma japonicum heat shock protein 60(SjHSP60)enhances CD4+CD25+regulatory T cell(Treg)immunosuppressive function. Methods An in vitro method was used to investigate the effect of Sj HSP60 on Treg immunosuppressive activity. Co-cultures in transwells and in vitro suppression assay were performed to investigate how Sj HSP60 enhanced the immunosuppressive function of Tregs. Intracellular cytokine staining combined with flow cytometry was used to dete...