Retinal cell regeneration using tissue engineered polymeric scaffolds

MA Zadeh, M Khoder, AA Al-Kinani, HM Younes… - Drug Discovery …, 2019 - Elsevier
Drug Discovery Today, 2019Elsevier
Highlights•There is no approved treatment for dry AMD or for the advanced GA of the
retina.•Tissue engineering is promising to repair damaged human retina, and restore its
functions.•Polymeric scaffolds allow cells to grow & proliferate to regenerate damaged
retinal tissues.•Integration of tissue engineering with drug delivery to regenerate retinal cells
is yet to be realized.Degenerative retinal diseases, such as age-related macular
degeneration (AMD), can lead to permanent sight loss. Although intravitreal anti-vascular …
Highlights
  • There is no approved treatment for dry AMD or for the advanced GA of the retina.
  • Tissue engineering is promising to repair damaged human retina, and restore its functions.
  • Polymeric scaffolds allow cells to grow & proliferate to regenerate damaged retinal tissues.
  • Integration of tissue engineering with drug delivery to regenerate retinal cells is yet to be realized.
Degenerative retinal diseases, such as age-related macular degeneration (AMD), can lead to permanent sight loss. Although intravitreal anti-vascular endothelial growth factor (VEGF) and steroid injections are effective for the management of early stages of wet and/or neovascular AMD (nAMD), no proven treatments currently exist for dry AMD or for the advanced geographic atrophy of the retina that follows. Tissue engineering (TE) has recently emerged as a promising alternative to repair retinal damaged and restore its functions. Here, we review recent advances in TE, with a particular emphasis on retinal regeneration. We provide an overview of retinal diseases, followed by a comprehensive review of TE techniques, cells, and polymers used in the fabrication of scaffolds for retinal cell regenerations, in particular the retinal pigment epithelium (RPE).
Elsevier
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