Objective To investigate the role of p38 MAPK signaling pathway in autophagy of intestinal epithelial cells induced by spv B of S.typhimurium. Methods Henle-407 cells in exponential growth were infected with wild-type S.typhimurium strain STM-211(with spv B gene), spv B mutated strain STM-Δspv B, or with Δspv B-complemented strain STM-c-spv B after treatment of the cells with the p38 MAPK inhibitor SB203580. At different time points of co-culture, the cells were collected and the intracellular bacteria were...