Effects of blocking αvβ3 integrin by a recombinant RGD disintegrin on remodeling of wound healing after induction of incisional hernia in rats

Acta Cir Bras. 2015 Feb;30(2):134-42. doi: 10.1590/S0102-86502015002000008.

Abstract

Purpose: To investigate the changes induced by DisBa-01 on repair of wound healing after induced incisional hernia (IH) in rats.

Methods: Thirty two male albino rats were submitted to IH and divided into four experimental groups: G1, placebo control; G2, DisBa-01-treated; G3, anti-αvβ3 antibodies-treated and G4, anti-α2 antibodies-treated. Histological, biochemical and extracellular matrix remodeling analysis of abdominal wall were evaluated.

Results: After 14 days, 100% of the G2 did not present hernia, and the hernia ring was closed by a thin membrane. In contrast, all groups maintained incisional hernia. DisBa-01 also increased the number macrophages and fibroblasts and induced the formation of new vessels. Additionally, MMP-2 was strongly activated only in G2 (p<0.05). Anti- αvβ3-integrin antibodies produced similar results than DisBa-01 but not anti-α2 integrin blocking antibodies.

Conclusion: DisBa-01 has an important role in the control of wound healing and the blocking of this integrin may be an interesting therapeutically strategy in incisional hernia.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Abdominal Wall / pathology
  • Animals
  • Collagen / analysis
  • Collagen / drug effects
  • Disease Models, Animal
  • Disintegrins / pharmacology*
  • Fibroblasts / drug effects
  • Hernia, Ventral / drug therapy
  • Hernia, Ventral / pathology*
  • Hernia, Ventral / surgery
  • Integrin alphaVbeta3 / antagonists & inhibitors*
  • Male
  • Matrix Metalloproteinase 2 / analysis
  • Matrix Metalloproteinase 2 / physiology
  • Platelet Aggregation Inhibitors / pharmacology*
  • Random Allocation
  • Rats, Wistar
  • Reproducibility of Results
  • Time Factors
  • Treatment Outcome
  • Wound Healing / drug effects*

Substances

  • Disintegrins
  • Integrin alphaVbeta3
  • Platelet Aggregation Inhibitors
  • Collagen
  • Matrix Metalloproteinase 2