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[The role of connective tissue growth factor, transforming growth factor and Smad signaling pathway during corneal

Yong-mei Yang1, Xin-yi Wu, Li-qun Du

  • 1Department of Ophthalmology, Jinan Center Hospital, Medical College of Shandong University, Jinan 250013, China.

[Zhonghua Yan Ke Za Zhi] Chinese Journal of Ophthalmology
|January 16, 2007
PubMed
Abstract

Insights

Connective tissue growth factor (CTGF) and transforming growth factor-beta(1) (TGF-beta(1)) are upregulated after corneal injury, promoting scar formation. Targeting these factors may reduce corneal scarring.

Area of Science:

  • Ophthalmology
  • Cell Biology
  • Biochemistry

Context:

  • Corneal wound healing is a complex process involving growth factors.
  • Connective tissue growth factor (CTGF) and transforming growth factor-beta(1) (TGF-beta(1)) play crucial roles in tissue repair.
  • Understanding their interaction and signaling pathways is vital for therapeutic development.

Purpose:

  • To investigate the expression and localization of CTGF and TGF-beta(1) during rabbit corneal wound healing.
  • To elucidate the interaction between CTGF and TGF-beta(1).
  • To explore the involvement of the Smad signaling pathway.

Summary:

  • Corneal injury upregulated CTGF, TGF-beta(1), fibronectin (FN), and type one collagen mRNA and protein.
  • CTGF and TGF-beta(1) expression peaked at 3 days post-injury and returned to basal levels by 21 days.
  • TGF-beta(1) induced corneal fibroblast activation and CTGF expression, while CTGF modulated FN and type one collagen production.

Impact:

  • TGF-beta(1) and CTGF promote corneal scar formation.
  • Inhibiting TGF-beta(1) reduced CTGF and FN expression.
  • Targeting CTGF and TGF-beta(1) synthesis offers a potential therapeutic strategy for reducing corneal scarring.

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