In a study that used Wt1-dependent CreER-expressing mice for the lineage tracing of Wt1+ MCs, the intraperitoneal injection of hypochlorite or dialysis solution, containing 4.25% glucose and 40 mM GDP, induced peritoneal fibrosis, and Wt1+ MCs underwent tissue repair through cell cycle upregulation, as analyzed by increased Ki-67 expression. The gene discussed is WT1; the disease is Peritoneal Fibrosis.