VITREOUS CYTOKINE PROFILE IN AN EYE WITH A VASOPROLIFERATIVE TUMOR

Area of Science:

• Ophthalmology
• Oncology
• Immunology

Background:

• Vasoproliferative tumors (VPTs) are rare intraocular neoplasms.
• VPTs can cause significant visual impairment due to associated complications like vitreous haze and epiretinal membranes (ERMs).
• The exact pathogenesis and inflammatory mechanisms underlying VPTs remain incompletely understood.

Purpose of the Study:

• To characterize the vitreous cytokine profile in a patient with a primary vasoproliferative tumor (VPT).
• To investigate the potential role of intraocular inflammation in the development of VPT-associated complications.
• To report the first analysis of vitreous cytokines in an eye with a primary VPT.

Main Methods:

• Retrospective case review of a single patient.
• Surgical intervention included 25-gauge pars plana vitrectomy with membrane peel and vitreous biopsy.
• Analysis of a 13-cytokine panel in the vitreous sample.

Main Results:

• A grey-red mass consistent with VPT was identified at the ora serrata.
• Vitreous cytology was negative for malignancy.
• Elevated levels of interleukin 6 (IL-6) and interleukin 8 (IL-8) were detected in the vitreous.
• Post-operative visual acuity improved from 20/40 to 20/25, with VPT regression and mild vitreous inflammation.

Conclusions:

• Elevated pro-inflammatory and pro-angiogenic cytokines (IL-6, IL-8) were found in the vitreous of a patient with a primary VPT.
• These cytokines may be secreted by VPT components (endothelial cells, macrophages), driving intraocular inflammation.
• This inflammation could lead to vitreous haze and epiretinal membrane formation, contributing to visual loss.