Local Silencing of Connective Tissue Growth Factor by siRNA/Peptide Improves Dermal Collagen Arrangements

Conclusion:CTGF expression was down-regulated to 40% of control by CTGF siRNA/KALA (1:24) complexes (p <  0.01) and collagen lattice contraction was inhibited. However, down-regulated of CTGF by CTGF siRNA/MPG∆NLS complexes was not statistically significant. CTGF KALA-treated wound appeared with well formed-basket weave pattern of collagen fibrils with mean diameter of 128  ± 22 nm (n = 821). Mismatch siRNA/KALA-treated wound showed a high frequency of parallel small diameter fibrils (mean 90 ± 20 nm, n = 563).Conclusion:Controlling over-expression of CTGF by peptide-mediated siRNA delivery could improve the collagen orientation and tissue remodeling in full thickness rabbit ear wound.
Source: Tissue Engineering and Regenerative Medicine - Category: Biotechnology Source Type: research