So first, we demonstrated that adiponectin receptor 2 is highly expressed in MKs, including in the DAMI and UT‐7 cell lines (Figure S4A, Supporting Information), and found that the expression of adiponectin receptor 2 was decreased in the MKs of ITP mice than in those of control mice. Here, ADIPOR2 is linked to autoimmune thrombocytopenic purpura.