RPE-mediated collagen gel contraction. Inhibition by colchicine and stimulation by TGF-beta

M. C. Raymond, J. T. Thompson

Research output: Contribution to journalArticlepeer-review

55 Scopus citations


Retinal detachment secondary to proliferative vitreoretinopathy (PVR) is often precipitated by traction on the retina from preretinal membranes and traction on the vitreous base. Contraction and proliferation of retinal pigment epithelial (RPE) cells appear to play an important role in the pathogenesis of PVR. Contraction of collagen gels by human RPE cells was evaluated as a model of tractional forces on the vitreous gel. The area of collagen gels with admixed RPE cells in 15-mm wells was measured daily. The collagen gels contracted to < 50% of original area in 89% of wells. Colchicine (0.01-1 μM) inhibited RPE-induced collagen gel contraction, whereas 1 ng/ml of transforming growth factor-beta enhanced it. Potantial stimulators or inhibitors of RPE-mediated gel contraction can be tested using this model.

Original languageEnglish (US)
Pages (from-to)1079-1086
Number of pages8
JournalInvestigative Ophthalmology and Visual Science
Issue number6
StatePublished - 1990


  • colchicine
  • collagen gel
  • proliferative vitreoretinopathy
  • retinal pigment epithelium
  • transforming growth factor-beta

ASJC Scopus subject areas

  • Ophthalmology
  • Sensory Systems
  • Cellular and Molecular Neuroscience


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