Résumé
Background: The incidence of ulcerative colitis (UC) has gradually increased in China in recent years. The pathogenesis of UC is related to the dysfunction of immune system. B7-H5 is an important immune checkpoint molecule and is significant for the regulation of immune function. Ainis: To investigate the expression and clinical significance of B7-H5 in UC. Methods: A total of 65 UC tissue specimens were collected from Jan. 2010 to Dec. 2020 at the First Affiliated Hospital of Soochow University, and 5 healthy subjects were served as controls. Immunohistoehemistry and immunofluorescence were used to detect the expression of B7-H5, and its relationship with elinieopathologieal characteristics of UC patients was analyzed. Results: Expression of B7-H5 was significantly increased in UC patients than in controls (P 0. 05). Conclusions; The expression of B7-H5 in UC patients is significantly increased and is correlated with ESR and CRP, and can be used as a new marker for reflecting the severity of inflammation in UC patients.