Molecular Basis of Pterygium Development

Area of Science:

• Ophthalmology
• Molecular Biology
• Genetics

Background:

• Pterygium pathogenesis is primarily associated with ultraviolet (UV) light exposure, though precise mechanisms remain unclear.
• Current surgical treatments for pterygium involve conjunctival autografts and amniotic membranes, often with adjuvant therapies like mitomycin C to minimize recurrence.

Purpose of the Study:

• To provide a comprehensive overview of the current understanding of molecular mechanisms involved in pterygium pathogenesis.
• To identify potential therapeutic targets for pterygium prevention and treatment based on its molecular underpinnings.

Main Methods:

• This review synthesizes findings from various studies investigating pterygium growth and proliferation.
• It examines molecular factors implicated in pterygium development, including genetic and cellular processes.

Main Results:

• Multiple factors contribute to pterygium development, including viral infections, oxidative stress, DNA methylation, and altered cholesterol metabolism.
• Key processes involved are loss of heterozygosity, microsatellite instability, inflammatory responses, extracellular matrix modulation, lymphangiogenesis, and epithelial-mesenchymal transition.

Conclusions:

• Understanding the molecular basis of pterygium is crucial for developing novel therapeutic strategies.
• Identifying these molecular targets may lead to more effective methods for preventing and eliminating pterygium growth.