Figure S1 Dose response of CD5-2 in B16F10 tumor model Figure S2 CD5-2 penetrates into endothelial cells but has no effect on proliferation, senescence and migration in vitro. Figure S3 CD5-2 does not affect tumor cell proliferation, necrosis, senescence and number of leukocytes infiltrating into the B16F10 tumor. Figure S4 CD5-2 has effects on CD8+ T cells but no effect on CD4+ T cells or NKp46+ NK cells in the MC38 tumor. Figure S5 CD5-2 increases VE-cadherin expression and regulates tight junctions pathway. Figure S6 schematic diagram of proposed effects of CD5-2 on tumor microenvironment.