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Related Concept Videos

iPS Cell Differentiation01:22

iPS Cell Differentiation

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The ability of induced pluripotent stem cells or iPSCs to differentiate into most body cell types has stimulated repair and regenerative medicine research over the past few decades. iPSC-derived blood cells, hepatocytes, beta islet cells, cardiomyocytes, neurons, and other cell types can repair injuries or regenerate damaged tissue in diseases such as diabetes and neurodegenerative disorders.
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Related Experiment Video

Updated: Mar 26, 2026

Subretinal Transplantation of Human Embryonic Stem Cell-Derived Retinal Tissue in a Feline Large Animal Model
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Cell-Based Therapy for Degenerative Retinal Disease.

Marco Zarbin1

  • 1Rutgers New Jersey Medical School, Newark, NJ 07103, USA.

Trends in Molecular Medicine
|January 22, 2016
PubMed
Summary

Stem cell therapies show promise for restoring vision in degenerative eye diseases by replacing retinal pigment epithelium and photoreceptors. Clinical trials are advancing, but challenges in synapse formation and immune response need further research.

Area of Science:

  • Ophthalmology
  • Regenerative Medicine
  • Stem Cell Biology

Background:

  • Retinal degenerative diseases cause vision loss through photoreceptor and retinal pigment epithelium damage.
  • Stem cell-derived retinal pigment epithelium (RPE) and photoreceptors (PRs) offer potential therapeutic strategies.
  • Preclinical studies demonstrate vision restoration in models of retinal disease.

Purpose of the Study:

  • To review the characteristics of stem cell therapy for ocular applications.
  • To discuss current challenges in the clinical implementation of these therapies.
  • To highlight the status and future directions of RPE and PR transplantation.

Main Methods:

  • Review of preclinical and clinical trial data on stem cell transplantation in retinal degenerative diseases.

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Subretinal Transplantation of Human Embryonic Stem Cell Derived-retinal Pigment Epithelial Cells into a Large-eyed Model of Geographic Atrophy
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Subretinal Transplantation of Human Embryonic Stem Cell Derived-retinal Pigment Epithelial Cells into a Large-eyed Model of Geographic Atrophy

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  • Analysis of challenges including cell survival, integration, and immune response.
  • Discussion of mechanisms underlying synapse formation and visual function restoration.

    • Main Results:

    • Stem cell-derived RPE and PRs have restored vision in preclinical models.
    • Early-phase clinical trials for RPE transplantation are underway with encouraging results.
    • Photoreceptor transplantation shows functional restoration but highlights the need for diverse approaches.

    Conclusions:

    • Stem cell therapy holds significant potential for treating retinal degenerative diseases.
    • Clinical translation faces hurdles in understanding and managing cell integration and immune reactions.
    • Further research into synaptic connections and immunoreactivity is crucial for therapeutic success.