PMID- 10752688 OWN - NLM STAT- MEDLINE DCOM- 20000428 LR - 20190915 IS - 0903-4641 (Print) IS - 0903-4641 (Linking) VI - 108 IP - 3 DP - 2000 Mar TI - Absence of mutations in the kinase domain of the Met gene and frequent expression of Met and HGF/SF protein in primary gastric carcinomas. PG - 195-200 AB - Hepatocyte growth factor/scatter factor (HGF/SF) and its receptor, Met, are known to play important roles in tumor cell migration, invasion, and metastasis. We analyzed the expression of these genes and the mutations in the kinase domain of the Met gene in 43 gastric carcinomas. Of the 43 cases, the Met and HGF/SF protein were expressed in 29 (67%) and 22 (51%), respectively. All of the cases with HGF/SF immunopositivity also expressed Met. Of 22 cases with HGF/SF immunopositivity, 13 (59%) expressed HGF/SF in tumor cells as well as fibroblasts. We detected no aberrant single-strand conformational polymorphism patterns, suggesting that there are no genetic alterations in the kinase domain of the Met gene. These results indicate that HGF/SF-mediated autocrine and/or paracrine stimulation and overexpression rather than structural alteration of its receptor may contribute to the development and progression of gastric carcinoma, and that expression of Met and HGF/SF may confer a growth advantage to neoplastic cells. FAU - Park, W S AU - Park WS AD - Department of Pathology, College of Medicine, The Catholic University of Korea, Seoul. FAU - Oh, R R AU - Oh RR FAU - Kim, Y S AU - Kim YS FAU - Park, J Y AU - Park JY FAU - Shin, M S AU - Shin MS FAU - Lee, H K AU - Lee HK FAU - Lee, S H AU - Lee SH FAU - Yoo, N J AU - Yoo NJ FAU - Lee, J Y AU - Lee JY LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Denmark TA - APMIS JT - APMIS : acta pathologica, microbiologica, et immunologica Scandinavica JID - 8803400 RN - 67256-21-7 (Hepatocyte Growth Factor) RN - EC 2.7.10.1 (Proto-Oncogene Proteins c-met) SB - IM MH - Adenocarcinoma/classification/*enzymology/pathology/physiopathology MH - Gene Expression MH - Hepatocyte Growth Factor/biosynthesis/genetics MH - Humans MH - *Mutation MH - Neoplasm Invasiveness MH - Polymorphism, Single-Stranded Conformational MH - Proto-Oncogene Proteins c-met/biosynthesis/*genetics MH - Stomach Neoplasms/classification/*enzymology/pathology/physiopathology EDAT- 2001/02/07 11:00 MHDA- 2001/02/07 11:01 CRDT- 2001/02/07 11:00 PHST- 2001/02/07 11:00 [pubmed] PHST- 2001/02/07 11:01 [medline] PHST- 2001/02/07 11:00 [entrez] AID - 10.1034/j.1600-0463.2000.d01-44.x [doi] PST - ppublish SO - APMIS. 2000 Mar;108(3):195-200. doi: 10.1034/j.1600-0463.2000.d01-44.x.