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Apoptosis in proliferative vitreoretinopathy

Ibraheem El Ghrably1, Des G Powe, Gavin Orr

  • 1Division of Ophthalmology and Visual Sciences, University Hospital, Nottingham, United Kingdom.

Investigative Ophthalmology & Visual Science
|April 28, 2004
PubMed
Abstract

Insights

Apoptosis plays a role in proliferative vitreoretinopathy (PVR) pathogenesis. Key apoptosis markers like Fas/FasL, TRAIL, and TGF-beta2 indicate distinct pathways involved in PVR development.

Area of Science:

  • Ophthalmology
  • Cell Biology
  • Molecular Biology

Background:

  • Proliferative vitreoretinopathy (PVR) is a severe complication of retinal detachment.
  • Understanding the molecular mechanisms underlying PVR pathogenesis is crucial for developing effective treatments.

Purpose of the Study:

  • To investigate the involvement of apoptosis in PVR pathogenesis.
  • To analyze the expression of different apoptosis markers in patients with PVR.

Main Methods:

  • RT-PCR was used to detect mRNA for Fas, Fas ligand (FasL), and TNF-related apoptosis inducing ligand (TRAIL) in vitreous samples.
  • TGF-beta2 protein levels were measured using ELISA.
  • Apoptotic cells in epiretinal membranes were identified using the TUNEL technique.

Main Results:

  • FAS and TRAIL mRNA levels were significantly higher in PVR patients compared to macular hole patients.
  • TGF-beta2 levels were elevated in PVR and retinal detachment (RD) groups compared to the macular hole group.
  • Apoptotic cells were detected in epiretinal membranes from PVR patients.

Conclusions:

  • Apoptosis is implicated as a mechanism in PVR pathogenesis.
  • The findings suggest that Fas/FasL, TRAIL, and TGF-beta2 mediated pathways are involved in PVR.

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