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[Histochemical study of proliferating cells in the spleen in mice with acute hepatic injury].

When heat-killed Propionibacterium acnes (P. acnes) and lipopolysaccharide (LPS) were injected into mice, liver cell necrosis with infiltrating neutrophils and macrophages were induced. Proliferating cells in the spleen were histochemically investigated. P. acnes injection rapidly produced hyperplasia of neutrophils and macrophages in the red pulp of the spleen. The proportion of Bromodeoxyuridine positive cells reached a peak at 5 days after injection of P. acnes. These results indicate that proliferating cells in the spleen after injection of P. acnes are mainly neutrophils and macrophages, which are the same kinds of infiltrating cells into the liver after injection of P. acnes and LPS.