Annexins as potential targets in ocular diseases

Area of Science:

• Ophthalmology and Molecular Biology
• Cellular Biology and Biochemistry

Background:

• Annexins (AnxAs) are Ca2+/phospholipid-binding proteins implicated in various diseases.
• While their presence in the visual system is known, their precise functions and cellular expression patterns in the eye remain largely uncharacterized.
• AnxAs possess pro-resolving properties relevant to ocular tissue homeostasis.

Purpose of the Study:

• To review the current understanding of Annexin A1-8 isoform distribution and function within the visual system.
• To explore the roles of AnxAs in both normal and pathological ocular conditions.
• To discuss potential ophthalmologic treatment strategies involving AnxA1 and its mimetic peptide Ac2-26.

Main Methods:

• Literature review of studies on Annexin distribution and function in the visual system.
• Analysis of research on AnxA roles in ocular diseases.
• Synthesis of information regarding therapeutic applications of Annexin A1 and Ac2-26.

Main Results:

• Annexin A1-8 isoforms exhibit diverse distribution patterns throughout the ocular tissues.
• AnxAs are involved in regulating inflammatory, immune, and structural processes in the eye.
• Evidence suggests AnxAs play significant roles in conditions like uveitis, glaucoma, and age-related macular degeneration.

Conclusions:

• Annexins are critical for maintaining ocular tissue homeostasis and resolving inflammation.
• Targeting Annexin A1, particularly with recombinant forms or peptides like Ac2-26, shows promise for novel ophthalmologic therapies.
• Further research into AnxA functions in specific ocular cell types is warranted to optimize treatment strategies.