GPR55 and colitis: Although qRT-PCR of ileal tissue from LPS-treated mice showed significant expressional changes only for the MGL gene but not for the other genes investigated, the detailed cellular scoring of GPR55 revealed that in contrast to DSS-induced colitis, gene expression of GPR55 in the ileum was lowered in CD3+ cells (see graph in Fig. 8), but did not change in F4/80+ cells (not shown).