PMID- 15531925 OWN - NLM STAT- MEDLINE DCOM- 20050217 LR - 20220317 IS - 0950-9232 (Print) IS - 0950-9232 (Linking) VI - 24 IP - 1 DP - 2005 Jan 6 TI - Enhanced growth of human met-expressing xenografts in a new strain of immunocompromised mice transgenic for human hepatocyte growth factor/scatter factor. PG - 101-6 AB - Downstream signaling that results from the interaction of hepatocyte growth factor/scatter factor (HGF/SF) with the receptor tyrosine kinase Met plays critical roles in tumor development, progression, and metastasis. This ligand-receptor pair is an attractive target for new diagnostic and therapeutic agents, preclinical development of which requires suitable animal models. The growth of heterotopic and orthotopic Met-expressing human tumor xenografts in conventional strains of immunocompromised mice inadequately replicates the paracrine stimulation by human HGF/SF (hHGF/SF) that occurs in humans with cancer. We have therefore generated a mouse strain transgenic for hHGF/SF (designated hHGF-Tg) on a severe combined immunodeficiency (SCID) background. We report here that the presence of ectopically expressed hHGF/SF ligand significantly enhances growth of heterotopic subcutaneous xenografts derived from human Met-expressing cancer cells, including the lines SK-LMS-1 (human leiomyosarcoma), U118 (human glioblastoma), and DU145 (human prostate carcinoma), but not that of M14-Mel xenografts (human melanoma that expresses insignificant levels of Met). Our results indicate that ectopic hHGF/SF can specifically activate Met in human tumor xenografts. This new hHGF-Tg strain of mice should provide a powerful tool for evaluating drugs and diagnostic agents that target the various pathways influenced by Met activity. FAU - Zhang, Yu-Wen AU - Zhang YW AD - Laboratory of Molecular Oncology, Van Andel Research Institute, 333 Bostwick Avenue NE, Grand Rapids, MI 49503, USA. FAU - Su, Yanli AU - Su Y FAU - Lanning, Nathan AU - Lanning N FAU - Gustafson, Margaret AU - Gustafson M FAU - Shinomiya, Nariyoshi AU - Shinomiya N FAU - Zhao, Ping AU - Zhao P FAU - Cao, Brian AU - Cao B FAU - Tsarfaty, Galia AU - Tsarfaty G FAU - Wang, Ling-Mei AU - Wang LM FAU - Hay, Rick AU - Hay R FAU - Vande Woude, George F AU - Vande Woude GF LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Oncogene JT - Oncogene JID - 8711562 RN - 0 (Proto-Oncogene Proteins) RN - 0 (Receptors, Growth Factor) RN - 67256-21-7 (Hepatocyte Growth Factor) RN - EC 2.7.10.1 (MET protein, human) RN - EC 2.7.10.1 (Proto-Oncogene Proteins c-met) SB - IM MH - Animals MH - Hepatocyte Growth Factor/genetics/*metabolism MH - Humans MH - Immunocompromised Host/immunology MH - Mice MH - Mice, SCID MH - Mice, Transgenic MH - Proto-Oncogene Proteins/genetics/*metabolism MH - Proto-Oncogene Proteins c-met MH - Receptors, Growth Factor/genetics/*metabolism MH - Time Factors MH - *Transplantation, Heterologous MH - Tumor Cells, Cultured EDAT- 2004/11/09 09:00 MHDA- 2005/02/18 09:00 CRDT- 2004/11/09 09:00 PHST- 2004/11/09 09:00 [pubmed] PHST- 2005/02/18 09:00 [medline] PHST- 2004/11/09 09:00 [entrez] AID - 1208181 [pii] AID - 10.1038/sj.onc.1208181 [doi] PST - ppublish SO - Oncogene. 2005 Jan 6;24(1):101-6. doi: 10.1038/sj.onc.1208181.