CXCL2 and inflammatory bowel disease: Similar to the reported effects of MSCs in chemically-induced colitis, BM-MSC treatments in Winnie mice downregulated the expression of Il6, Ifng, Il1b, Il1a, Tnf, Cxcl2, Tbx21 and Itgam, which were upregulated in Winnie mice and IBD patients.