Novel evidence for complement system activation in chick myopia and hyperopia models: a meta-analysis of...

Area of Science:

• Ophthalmology
• Genomics
• Molecular Biology

Background:

• Myopia and hyperopia result from abnormal eye growth, affecting billions globally.
• High myopia increases risks for severe vision disorders, but underlying molecular causes are unclear.
• Understanding ocular growth regulation is crucial for preventing vision loss.

Purpose of the Study:

• To meta-analyze transcriptome datasets from chick models of induced refractive error.
• To identify molecular mechanisms of ocular growth regulation in myopia and hyperopia.
• To improve concordance with human genetic and animal proteomic data.

Main Methods:

• Acquired 15 transcriptome datasets from GEO across five studies.
• Preprocessed data using Bioconductor and categorized into myopia/hyperopia induction stages.
• Applied Rank Product meta-analysis to identify differentially expressed genes.

Main Results:

• Identified novel transcriptional activation of the complement system in both myopia and hyperopia.
• Confirmed roles for cell signaling, mitochondrial, and structural pathways in refractive error.
• Enhanced concordance with human genetic association and animal proteomic studies.

Conclusions:

• The complement system is implicated in the molecular pathways of myopia and hyperopia.
• Meta-analysis of transcriptome data provides robust insights into refractive error.
• Findings align with genes associated with age-related macular degeneration and other eye diseases.