In Situ Cytokine Expression and Morphometric Evaluation of Total Collagen and Collagens Type I and Type III in Keloid Scars.

Abstract:

:Keloids are characterized by excessive collagen deposition and growth beyond the edges of the initial injury, and cytokines may be related to their formation. The objective of this study was to evaluate the collagen fibers, analyze in situ expression of cytokines in keloid lesions, and compare to the control group. Results showed that there was a predominance of women and nonwhite and direct black ancestry. Keloid showed a significant increase in total and type III collagen. Significantly, the expression of mRNA for TGF-β in keloid was increased, the expressions of IFN-γ, IFN-γR1, and IL-10 were lower, and IFN-γR1 and TNF-α had no statistical difference. Correlations between collagen type III and TGF-β mRNA expression were positive and significant, IFN-γ, IFN-γR1, and IL-10 were negative and significant, and TNF-α showed no statistical difference. We conclude that there was a significant increase of total collagen in keloid and predominance of collagen type III compared to the controls, showing keloid as an immature lesion. There is a significant increase in TGF-β mRNA in keloid lesions, and a significant decrease in IFN-γ and IL-10, suggesting that these cytokines are related to keloid lesions.

journal_name

Mediators Inflamm

authors

da Silva IR,Tiveron LCRDC,da Silva MV,Peixoto AB,Carneiro CAX,Dos Reis MA,Furtado PC,Rodrigues BR,Rodrigues V Jr,Rodrigues DBR

doi

10.1155/2017/6573802

subject

Has Abstract

pub_date

2017-01-01 00:00:00

pages

6573802

eissn

0962-9351

issn

1466-1861

journal_volume

2017

pub_type

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