Retinal pigment epithelium engineering using synthetic biodegradable polymers

Lichun Lu, Michael J. Yaszemski, Antonios G. Mikos

Research output: Contribution to journalReview article

98 Scopus citations

Abstract

Retinal pigment epithelium (RPE) plays a key role in the maintenance of the normal functions of the retina, especially photoreceptors. Alteration in RPE structure and function is implicated in a variety of ocular disorders. Tissue engineering strategies using synthetic biodegradable polymers as temporary substrates for RPE cell culture and subsequent transplantation may provide a promising new therapy. In this review article, the manufacture of thin biodegradable poly(DL-lactic-co-glycolic acid) (PLGA) films and their degradation behavior in vitro are discussed. RPE cell proliferation and differentiation on these PLGA films are reviewed. The fabrication of model substrates with desired chemical micropatterns in the micrometer scale is discussed and the effects of surface patterning on RPE morphology and function are assessed. Finally, the preparation of biodegradable micropatterns with adhesive PLGA and non-adhesive poly(ethylene glycol)/PLA domains to modulate RPE cell adhesion is presented.

Original languageEnglish (US)
Pages (from-to)3345-3355
Number of pages11
JournalBiomaterials
Volume22
Issue number24
DOIs
StatePublished - Dec 15 2001

Keywords

  • Biodegradable polymers
  • Micropatterned surfaces
  • Poly(DL-lactic-co-glycolic acid) (PLGA)
  • Retinal pigment epithelium (RPE)
  • Thin film
  • Tissue engineering

ASJC Scopus subject areas

  • Bioengineering
  • Ceramics and Composites
  • Biophysics
  • Biomaterials
  • Mechanics of Materials

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