SLCO2A1 and neoplasm: Nonetheless, the reduced microvascular density in Slco2a1-deficient polyps coupled with OATP2A1 affecting angiogenesis, as shown both in vitro tube formation and wound healing assays in HUVECs (Fig. 4) and in vivo sponge subcutaneous implantation model (Fig. 5), suggests that OATP2A1 contributes to tumour angiogenesis.