TMSB4X and renal fibrosis: The same hypothesis applies to the decreased expression of STMN1, TMSB4X and MYH9 in HK-2 cells under diabetic-like conditions, because: i) STMN1 is a microtubule-destabilizing phosphoprotein [49] whose deficiency in mice has been connected to the development of renal fibrosis [50].