Corneal toxicity induced by vesicating agents and effective treatment options

Area of Science:

• Ophthalmology
• Toxicology
• Chemical Warfare Agents

Background:

• Sulfur mustard (SM) and lewisite (LEW) are chemical warfare agents causing significant ocular damage.
• Ocular tissue is highly sensitive to vesicants, leading to conditions like photophobia, corneal lesions, and potential vision loss.
• Limited research exists on lewisite-induced ocular injuries, and effective therapies for vesicant-induced corneal damage are lacking.

Purpose of the Study:

• To establish in vitro and ex vivo models for evaluating therapeutic agents against vesicant-induced ocular injuries.
• To investigate potential broad-spectrum therapies for corneal damage caused by chemical warfare agents.

Main Methods:

• Established primary human corneal epithelial cells and rabbit corneal organ culture models.
• Utilized nitrogen mustard, an analog of sulfur mustard, to simulate vesicant exposure in these models.
• Proposed further evaluation of therapeutic agents in vivo using SM- and LEW-induced corneal injury models.

Main Results:

• Developed functional in vitro and ex vivo models for testing therapeutic efficacy against corneal injury.
• These models facilitate the screening of potential treatments for vesicant-induced ocular damage.

Conclusions:

• The established models provide a platform for developing effective therapies against ocular injuries caused by chemical warfare agents like sulfur mustard and lewisite.
• This research aims to advance the development of broad-spectrum treatments for severe corneal damage.