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EnglishHepatocyte growth factor (HGF) and macrophage-stimulating protein (MSP) have an intrinsic dual nature: they are trophic cytokines preventing apoptosis on one side and scatter factors promoting invasion on the other. For therapeutic use, their anti-apoptotic activity must be separated from their pro-invasive activity. To this end, we engineered chimeric factors containing selected functional domains of HGF and/or MSP in different combinations, and tested their biological activity. Here we present a chimeric cytokine derived from the alpha-chains of HGF and MSP, named Metron factor 1 for its ability to concomitantly activate the HGF receptor (Met) and the MSP receptor (Ron). We provide evidence that Metron factor 1 prevents apoptosis and stimulates cell proliferation at nanomolar concentrations, but is devoid of any pro-invasive activity. In an in vivo murine model of drug-induced nephrotoxicity, intravenous injection of recombinant Metron factor 1 prevented renal damage and preserved tubular integrity.
| Titolo: | An HGF-MSP chimera disassociates the trophic properties of scatter factors from their pro-invasive activity. | |
| Autori Riconosciuti: | ||
| Autori: | MICHIELI P; CAVASSA S; BASILICO C; DE LUCA A; MAZZONE M; ASTI C; CHIUSAROLI R; GUGLIELMI M; BOSSU' P; COLOTTA F; CASELLI G; PM COMOGLIO | |
| Data di pubblicazione: | 2002 | |
| Abstract: | Hepatocyte growth factor (HGF) and macrophage-stimulating protein (MSP) have an intrinsic dual nature: they are trophic cytokines preventing apoptosis on one side and scatter factors promoting invasion on the other. For therapeutic use, their anti-apoptotic activity must be separated from their pro-invasive activity. To this end, we engineered chimeric factors containing selected functional domains of HGF and/or MSP in different combinations, and tested their biological activity. Here we present a chimeric cytokine derived from the alpha-chains of HGF and MSP, named Metron factor 1 for its ability to concomitantly activate the HGF receptor (Met) and the MSP receptor (Ron). We provide evidence that Metron factor 1 prevents apoptosis and stimulates cell proliferation at nanomolar concentrations, but is devoid of any pro-invasive activity. In an in vivo murine model of drug-induced nephrotoxicity, intravenous injection of recombinant Metron factor 1 prevented renal damage and preserved tubular integrity. | |
| Volume: | 20 | |
| Pagina iniziale: | 488 | |
| Pagina finale: | 495 | |
| Rivista: | NATURE BIOTECHNOLOGY | |
| Appare nelle tipologie: | 03A-Articolo su Rivista |
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