title: Delay of cell cycle progression and induction death of cancer cells on type I collagen fibrils [corrected].
abstract: Here, we report the behavior of three kinds of human cancer cell lines (Caco-2, MCF-7, HT-1080) on type I collagen substrates, which are in two-dimensional coated collagen or three-dimensional fibrils form. All tested cells on coated collagen adhered and proliferated. However, in the case of collagen fibrils, the proliferation of cancer cells was suppressed. Furthermore, Akt activation, which is known as a cell-survival signal, was inhibited in cells on collagen fibrils. But the activation of ERK1/2 was not completely inhibited. In Caco-2 cells, delay of cell cycle progression and cell death occurred at the same time. Thus, cell division and cell death occurred at equivalent rates on the collagen fibrils, and cell growth seemed to be stopped. These results imply that the fibril form of collagen plays a potential role in inhibiting the growth of cancer cells.
authors.affiliation: Nippi Research Institute of Biomatrix , Toride, Ibaraki , Japan.
authors.forename: Jun
authors.initials: J
authors.lastname: Sasaki
authors.forename: Hitomi
authors.initials: H
authors.lastname: Fujisaki
authors.forename: Eijiro
authors.initials: E
authors.lastname: Adachi
authors.forename: Shinkichi
authors.initials: S
authors.lastname: Irie
authors.forename: Shunji
authors.initials: S
authors.lastname: Hattori
mesh_terms: D000818:Animals; D001973:Bromodeoxyuridine / Q000378:metabolism; D053148:Caspase 3 / Q000378:metabolism; D053453:Caspase 9 / Q000378:metabolism; D002417:Cattle; D002453:Cell Cycle / Q000187:drug effects*; D016923:Cell Death / Q000187:drug effects; D045744:Cell Line, Tumor; D049109:Cell Proliferation / Q000187:drug effects; D048430:Cell Shape / Q000187:drug effects; D002470:Cell Survival / Q000187:drug effects; D024042:Collagen Type I / Q000494:pharmacology*; D004789:Enzyme Activation / Q000187:drug effects; D048049:Extracellular Signal-Regulated MAP Kinases / Q000378:metabolism; D051416:Focal Adhesion Protein-Tyrosine Kinases / Q000378:metabolism; D022001:Focal Adhesions / Q000187:drug effects / Q000378:metabolism / Q000648:ultrastructure; D006801:Humans; D038982:Integrin alpha2beta1 / Q000378:metabolism; D008855:Microscopy, Electron, Scanning; D009369:Neoplasms / Q000201:enzymology / Q000473:pathology*; D051419:Paxillin / Q000378:metabolism; D011065:Poly(ADP-ribose) Polymerases / Q000378:metabolism; D021381:Protein Transport / Q000187:drug effects; D051057:Proto-Oncogene Proteins c-akt / Q000378:metabolism; D013997:Time Factors
chemical_list: D024042:Collagen Type I; D038982:Integrin alpha2beta1; D051419:Paxillin; D011065:Poly(ADP-ribose) Polymerases; D051416:Focal Adhesion Protein-Tyrosine Kinases; D051057:Proto-Oncogene Proteins c-akt; D048049:Extracellular Signal-Regulated MAP Kinases; D053148:Caspase 3; D053453:Caspase 9; D001973:Bromodeoxyuridine