Knocking out matrix metalloproteinase 12 causes the accumulation of M2 macrophages in intestinal tumor microenvironment of mice

Mingming Yang, Xiaohan Zhang, Qing Liu, Ting Niu, Lingbi Jiang, Haobin Li, Jianbiao Kuang, Cuiling Qi, Qianqian Zhang, Xiaodong He, Lijing Wang, Jiangchao Li