PMID- 9833769 OWN - NLM STAT- MEDLINE DCOM- 19981204 LR - 20190708 IS - 0020-7136 (Print) IS - 0020-7136 (Linking) VI - 78 IP - 6 DP - 1998 Dec 9 TI - Hepatocyte growth factor/scatter factor induces not only scattering but also cohort migration of human colorectal-adenocarcinoma cells. PG - 750-9 AB - We presented earlier a 2-dimensional cell-motility assay using a highly metastatic variant (L-10) of human rectal-adenocarcinoma cell line RCM-1 as a motility model of tumor cells of epithelial origin. In this model, L-10 cells moved as coherent cell sheets when stimulated with 12-O-tetradecanoylphorbol-13-acetate (TPA), and we called this type of movement "cohort migration". Electron- and immunoelectron-microscope study of the migrating cell sheets demonstrated localized release from cell-cell adhesion only at the lower portion of the cells with loss of E-cadherin immunoreactivity, and this change was associated with increased tyrosine phosphorylation of the E-cadherin-catenin complex, including beta-catenin. In the present study, to obtain evidence to support the relevance of our model to carcinoma-cell movement in vivo, we sought a naturally occurring motogenic factor(s) able to induce this cohort migration. Among the factors examined, hepatocyte growth factor/scatter factor (HGF/SF) clearly induced cohort migration of L-10 cells. Additionally, not only L-10 but several other human colorectal-carcinoma cell lines showed this type of migration in response to HGF/SF, while yet others showed scattering-type motility. In this HGF/SF-induced migration, localized release from cell-cell adhesion was induced only at the lower portion of the cells, allowing them to extend leading lamellae, whereas close cell-cell contacts remained at the upper portion of the cells, as seen in TPA-induced cohort migration. Scattering-type cell lines tended to express more c-Met (receptor for HGF/SF) mRNA than the cell lines that showed cohort-type migration. LoVo, one of the scattering-type cell lines, expressed more c-Met protein and less E-cadherin than L-10, which showed cohort-type migration. HGF/SF treatment of LoVo reduced the amount of alpha-catenin complexed with E-cadherin more markedly than in L-10, but in both cell lines this reduction was not accompanied by increased tyrosine phosphorylation of beta-catenin, suggesting the presence of a mechanism other than phosphorylation for release from cell-cell adhesion during cell motility. FAU - Nabeshima, K AU - Nabeshima K AD - Department of Pathology, Miyazaki Medical College, Kiyotake, Japan. FAU - Shimao, Y AU - Shimao Y FAU - Inoue, T AU - Inoue T FAU - Itoh, H AU - Itoh H FAU - Kataoka, H AU - Kataoka H FAU - Koono, M AU - Koono M LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Int J Cancer JT - International journal of cancer JID - 0042124 RN - 0 (CTNNA1 protein, human) RN - 0 (Cadherins) RN - 0 (Cytoskeletal Proteins) RN - 0 (Recombinant Proteins) RN - 0 (alpha Catenin) RN - 67256-21-7 (Hepatocyte Growth Factor) SB - IM MH - Adenocarcinoma/*pathology MH - Cadherins/metabolism MH - Cell Adhesion/drug effects MH - Cell Division/drug effects MH - Cell Movement/drug effects MH - Colorectal Neoplasms/*pathology MH - Cytoskeletal Proteins/metabolism MH - Hepatocyte Growth Factor/*pharmacology MH - Humans MH - Phosphorylation MH - Recombinant Proteins/pharmacology MH - Tumor Cells, Cultured MH - alpha Catenin EDAT- 1998/12/02 03:03 MHDA- 2000/06/20 09:00 CRDT- 1998/12/02 03:03 PHST- 1998/12/02 03:03 [pubmed] PHST- 2000/06/20 09:00 [medline] PHST- 1998/12/02 03:03 [entrez] AID - 10.1002/(SICI)1097-0215(19981209)78:6<750::AID-IJC13>3.0.CO;2-# [pii] AID - 10.1002/(sici)1097-0215(19981209)78:6<750::aid-ijc13>3.0.co;2-# [doi] PST - ppublish SO - Int J Cancer. 1998 Dec 9;78(6):750-9. doi: 10.1002/(sici)1097-0215(19981209)78:6<750::aid-ijc13>3.0.co;2-#.