“…MIF exerts its biological activity in the form of homotrimers, with its sequence highly conserved in mammals, and it also exists in bacteria, nematodes, and protozoa. It can be proinflammatory cytokine (Tohyama et al, 2008;Lyu et al, 2021;Schindler et al, 2021;Vrataric et al, 2021), chemokine-like functional chemokine, anterior pituitary hormone, nuclease (Wang Y. et al, 2016), enzyme with tautomerism and thiol protein oxidoreductase (TPOR) activity (Stoppe et al, 2018), in parallel it can also regulate cell proliferation and survival, fibrosis (Sanchez-Nino et al, 2013) and energy metabolism (Gligorovska et al, 2021). Autocrine or paracrine MIF can bind to membrane surface receptor CD74/CD44 (Rice et al, 2003;Ma et al, 2010;Xie et al, 2016;Wang J. et al, 2021) and chemokine receptor CXCR2, CXCR4 and CXCR7 (Bernhagen et al, 2007;Chatterjee et al, 2014;Alampour-Rajabi et al, 2015) to jointly activate downstream signaling pathways such as ERK1/2, MAPK and P53.…”