Regulation of Intestinal Mucosal Immunity by Intestinal Flora in Animals

There exists a huge amount of flora with complex structures in the animals' intestine;also,there are many powerful mucosal lymphocytes within the intestinal wall.The intestinal flora plays an important role both in promoting growth and development of the intestinal mucosal immune system and in regulating intestinal mucosal barrier and immune functions.This paper reviews the colonization and characteristics of the intestinal flora,the function of intestinal mucosal immune cells,as well as the regulation of intestinal mucosal barrier and immune functions by the intestinal flora.