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The Extracellular Matrix Protein TGFBI Induces Microtubule Stabilization and Sensitizes Ovarian Cancers to Paclitaxel

  • Ahmed Ashour Ahmed
  • , Anthony D. Mills
  • , Ashraf E.K. Ibrahim
  • , Jillian Temple
  • , Cherie Blenkiron
  • , Maria Vias
  • , Charlie E. Massie
  • , N. Gopalakrishna Iyer
  • , Adam McGeoch
  • , Robin Crawford
  • , Barbara Nicke
  • , Julian Downward
  • , Charles Swanton
  • , Stephen D. Bell
  • , Helena M. Earl
  • , Ronald A. Laskey
  • , Carlos Caldas
  • , James D. Brenton*
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

200 Scopus citations

Abstract

The extracellular matrix (ECM) can induce chemotherapy resistance via AKT-mediated inhibition of apoptosis. Here, we show that loss of the ECM protein TGFBI (transforming growth factor beta induced) is sufficient to induce specific resistance to paclitaxel and mitotic spindle abnormalities in ovarian cancer cells. Paclitaxel-resistant cells treated with recombinant TGFBI protein show integrin-dependent restoration of paclitaxel sensitivity via FAK- and Rho-dependent stabilization of microtubules. Immunohistochemical staining for TGFBI in paclitaxel-treated ovarian cancers from a prospective clinical trial showed that morphological changes of paclitaxel-induced cytotoxicity were restricted to areas of strong expression of TGFBI. These data show that ECM can mediate taxane sensitivity by modulating microtubule stability.

Original languageEnglish
Pages (from-to)514-527
Number of pages14
JournalCancer Cell
Volume12
Issue number6
DOIs
StatePublished - 6 Dec 2007
Externally publishedYes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

Keywords

  • CELLBIO
  • CELLCYCLE
  • CHEMBIO

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