Increased expression of WNT pathway components has also been noted in human DKD biopsies (Cohen et al. 2008; Dai et al. 2009; Kato et al. 2011; He et al. 2012), with MMP‐7 being the most highly induced WNT target in mRNA arrays of diabetic kidney tissue (Cohen et al. 2008). The gene discussed is MMP7; the disease is diabetic kidney disease.