The role of hepatocyte growth factor (HGF) at progressive stages of metanephric development

In Vitro Cellular & Developmental Biology. Animal
W E Sweeney, E D Avner

Abstract

Several lines of evidence suggest that hepatocyte growth factor (HGF), a soluble protein secreted by mesenchymal cells, may elicit a morphogenic response in the developing metanephros. We investigated the role of HGF at three different stages of murine metanephric development utilizing serum-free organ culture. Cultures were initiated at E-13, E-15, and E-17; treated with exogenous HGF or antibodies to HGF (to block endogenous HGF) for 120 h in vitro; and evaluated for growth and differentiation in comparison to control explants cultured for 120 h in basal medium. HGF treatment of E-13 explants resulted in a reduction of growth and differentiation compared to control explants. Treatment of E-13 explants with antibodies to HGF produced explant growth and differentiation indistinguishable from control explants. In contrast to the results of E-13 cultures, explants initiated at E-15 and E-17 demonstrated an increased growth and differentiation profile when treated with HGF compared to controls. Treatment of E-15 and E-17 explants with antibodies to HGF resulted in a decrease growth and differentiation profile compared to control or HGF-treated explants. These data demonstrate that HGF has differential effects on renal morphogenesi...Continue Reading

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Citations

Apr 14, 1999·Kidney International·N S MurciaE D Avner

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