Differential effects of cellular fibronectin and plasma fibronectin on ovarian cancer cell adhesion, migration, and invasion

Ladan Zand, Qiang Feng, Calvin D. Roskelley, Peter C.K. Leung, Nelly Auersperg

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

The main form of fibronectin (FN) encountered by tumor cells in vivo is cellular FN (cFN), which differs structurally and functionally from the commonly used plasma FN (pFN). We compared the effects of cFN and pFN on the ovarian carcinoma lines OVCAR-3 and SKOV-3 and on cultures of normal ovarian surface epithelium, which is the precursor of the epithelial ovarian carcinomas. Ovarian surface epithelial cells and SKOV-3 cells attached and spread faster on cFN than on pFN. On cFN, SKOV-3 migration was enhanced compared with pFN or plastic. In a matrigel transfilter assay, cFN strongly inhibited SKOV-3 invasion, whereas pFN did not. In contrast to SKOV-3, OVCAR-3 cells adhered faster on FN than on plastic but did not discriminate between cFN and pFN, and they did not migrate or invade matrigel either with or without FN. In both carcinoma lines, proliferation was unaffected by either FN. The results show profound differences in the responses to cFN and pFN by two invasive ovarian carcinoma lines. Because cFN is the main type that cancer cells encounter in vivo, extrapolations from culture data to in vivo events should preferably be based on studies using this form of FN.

Original languageEnglish (US)
Pages (from-to)178-182
Number of pages5
JournalIn Vitro Cellular and Developmental Biology - Animal
Volume39
Issue number3-4
DOIs
StatePublished - Jan 1 2003
Externally publishedYes

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Keywords

  • Cell motility
  • Extracellular matrix
  • Fibronectin
  • Invasion
  • Ovarian surface epithelium

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