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Isolation, Culture, and Characterization of Primary Dermal Fibroblasts from Human Keloid Tissue
Published on: July 28, 2023
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A novel regulatory function for miR-29a in keloid fibrogenesis
G-Y Zhang1,2, L-C Wu3, T Liao4
1Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
Clinical and Experimental Dermatology
|November 15, 2015
Summary
MicroRNA-29a (miR-29a) is significantly reduced in keloid fibroblasts, impacting collagen production. Restoring miR-29a levels may offer a new therapeutic strategy for keloid fibrogenesis.
Area of Science:
- Dermatology
- Molecular Biology
- Fibrosis Research
Background:
- MicroRNA-29 (miR-29) is implicated in fibrosis progression.
- The specific role of miR-29 in keloid fibrogenesis is not well understood.
Purpose of the Study:
- To investigate the function of miR-29 in dermal fibroblasts during keloid pathogenesis.
- To explore the relationship between miR-29 and collagen production in keloids.
Main Methods:
- Primary keloid and healthy fibroblasts were cultured and treated with TGF-β1.
- Fibroblasts were transfected with miR-29a mimics and inhibitors.
- Collagen I and III expression was quantified using qPCR and Western blotting.
Main Results:
- miR-29a, miR-29b, and miR-29c levels were significantly lower in keloid fibroblasts.
- miR-29a levels were markedly reduced in keloid tissues.
- Overexpression of miR-29a decreased collagen I and III, while inhibition increased them.
- TGF-β1 treatment reduced miR-29a expression in fibroblasts.
Conclusions:
- miR-29a acts as a novel regulator in keloid fibrogenesis.
- miR-29a may serve as a potential diagnostic marker for keloids.
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