title: CD151 enhances cell motility and metastasis of cancer cells in the presence of focal adhesion kinase.
abstract: We have examined the role of the protein CD151 in cell motility, invasion and metastasis of cancer cells by using CD151-overexpressing cells prepared by transfection of CD151 cDNA into three cancer cell lines established from different origins; a human colon cancer RPMI4788, a human glioblastoma A172 and a human fibrosarcoma HT1080. Invasion into Matrigel and cell motility of all 3 CD151-overexpressing cancer cells were enhanced significantly when compared to control parental cells. Pulmonary metastasis of 2 metastatic CD151-overexpressing cancer cell lines, RPMI4788/CD151 and HT1080/CD151, was higher than that of control parental cells and was markedly inhibited by anti-CD151 monoclonal antibody (MAb), SFA1.2B4. To examine whether focal adhesion kinase (FAK) is associated with promotion of cell motility and invasion of cancer cells through CD151, we transfected human CD151 cDNA into FAK (+/+) or FAK (-/-) fibroblasts that were isolated from embryos in FAK-deficient mice and compared invasion into Matrigel and cell motility between each CD151-transfected cells and controls. The invasion into Matrigel and cell motility of CD151-transfected FAK (+/+) fibroblasts increased significantly above those of parental cells and were inhibited by anti-CD151 MAb, whereas those of CD151-transfected FAK (-/-) fibroblasts were not enhanced at all and were not blocked by anti-CD151 MAb. These findings indicate that the CD151 molecule enhances cell motility, invasion and metastasis of cancer cells and that FAK is needed for these events through CD151.
authors.affiliation: First Department of Internal Medicine, Ehime University School of Medicine, Shigenobu, Ehime 791-0295, Japan.
authors.forename: Masashi
authors.initials: M
authors.lastname: Kohno
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Hasegawa
authors.forename: Masayuki
authors.initials: M
authors.lastname: Miyake
authors.forename: Tadashi
authors.initials: T
authors.lastname: Yamamoto
authors.forename: Shigeru
authors.initials: S
authors.lastname: Fujita
mesh_terms: D000911:Antibodies, Monoclonal / Q000378:metabolism; D015703:Antigens, CD / Q000276:immunology / Q000378:metabolism* / Q000502:physiology*; D001672:Biocompatible Materials / Q000494:pharmacology; D002465:Cell Movement; D003094:Collagen / Q000494:pharmacology; D018076:DNA, Complementary / Q000378:metabolism; D004338:Drug Combinations; D005347:Fibroblasts / Q000378:metabolism; D005434:Flow Cytometry; D051417:Focal Adhesion Kinase 1; D051416:Focal Adhesion Protein-Tyrosine Kinases; D006801:Humans; D015151:Immunoblotting; D007797:Laminin / Q000494:pharmacology; D009361:Neoplasm Invasiveness; D009362:Neoplasm Metastasis; D011233:Precipitin Tests; D011505:Protein-Tyrosine Kinases / Q000378:metabolism*; D011509:Proteoglycans / Q000494:pharmacology; D060185:Tetraspanin 24; D014162:Transfection; D014407:Tumor Cells, Cultured
chemical_list: D000911:Antibodies, Monoclonal; D015703:Antigens, CD; D001672:Biocompatible Materials; C554715:CD151 protein, human; C554716:Cd151 protein, mouse; D018076:DNA, Complementary; D004338:Drug Combinations; D007797:Laminin; D011509:Proteoglycans; D060185:Tetraspanin 24; C059485:matrigel; D003094:Collagen; D011505:Protein-Tyrosine Kinases; D051417:Focal Adhesion Kinase 1; D051416:Focal Adhesion Protein-Tyrosine Kinases; C496050:PTK2 protein, human