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 Inflammjournal_title
Mediators of inflammationauthors
da Silva IR,Tiveron LCRDC,da Silva MV,Peixoto AB,Carneiro CAX,Dos Reis MA,Furtado PC,Rodrigues BR,Rodrigues V Jr,Rodrigues DBRdoi
10.1155/2017/6573802subject
Has Abstractpub_date
2017-01-01 00:00:00pages
6573802eissn
0962-9351issn
1466-1861journal_volume
2017pub_type
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