Abstract：
:Cellular motility is a critical function in embryonic development, tissue repair, and tumor invasion. We used assays of scattering (epithelial colony dispersion), cell migration, and cell invasion to study cytokine-regulated motility in epithelial and carcinoma cell lines. Tumor necrosis factor (TNF) stimulated motility in 12 of 14 cell lines in one or more assay systems. The motility-stimulating activity of TNF did not correlate with its antiproliferative activity. In lines whose migration was stimulated by both TNF and scatter factor (SF), a fibroblast-derived cytokine which stimulates epithelial cell motility, saturating concentrations of TNF plus SF induced greater migration than either agent alone. Anti-TNF monoclonal antibody blocked TNF- but not SF-stimulated motility. While various other factors (basic fibroblast growth factor, interleukin 6, interleukin 2, colony-stimulating factor 1) had little or not motility-stimulating activity, phorbol-12-myristate-13-acetate (PMA), a tumor-promoting phorbol ester, scattered and/or stimulated migration in all cell lines studied. Combinations of saturating concentrations of TNF plus PMA or of SF plus PMA induced greater migration than did any agent alone. These findings suggest that (a) carcinoma cell motility may be mediated by multiple biochemical pathways and (b) TNF stimulates epithelial motility by a mechanism different from that of SF and PMA. In vivo, TNF might enhance invasiveness of some carcinomas or stimulate epithelial wound healing.
journal_name
Cancer Resjournal_title
Cancer researchauthors
Rosen EM,Goldberg ID,Liu D,Setter E,Donovan MA,Bhargava M,Reiss M,Kacinski BMsubject
Has Abstractpub_date
1991-10-01 00:00:00pages
5315-21issue
19eissn
0008-5472issn
1538-7445journal_volume
51pub_type
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