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  1. Xian LJ, Chowdhury SR, Bin Saim A, Idrus RB
    Cytotherapy, 2015 Mar;17(3):293-300.
    PMID: 25456581 DOI: 10.1016/j.jcyt.2014.10.005
    Platelet-rich plasma (PRP) has been found to contain a high concentration of growth factors that are present during the process of healing. Studies conducted found that application of PRP accelerates wound healing. In this study, we characterized the skin cell suspension harvested using the co-isolation technique and evaluated the effects of PRP (10% and 20%, v/v) on co-cultured keratinocytes and fibroblasts in terms of wound healing.
    Matched MeSH terms: Collagen Type III/metabolism
  2. Lim CK, Halim AS, Yaacob NS, Zainol I, Noorsal K
    J Biosci Bioeng, 2013 Apr;115(4):453-8.
    PMID: 23177217 DOI: 10.1016/j.jbiosc.2012.10.010
    The effects of locally produced chitosan (CPSRT-NC-bicarbonate) in the intervention of keloid pathogenesis were investigated in vitro. A human keratinocyte-fibroblast co-culture model was established to investigate the protein levels of human collagen type-I, III and V in a western blotting analysis, the secreted transforming growth factor-β1 (TGF-β1) in an enzyme-linked immunosorbent assay (ELISA) and the mRNA levels of TGF-β1's intracellular signaling molecules (SMAD2, 3, 4 and 7) in a real-time PCR analysis. Keratinocyte-fibroblast co-cultures were maintained in DKSFM:DMEM:F12 (2:2:1) medium. Collagen type-I was found to be the dominant form in primary normal human dermal fibroblast (pNHDF) co-cultures, whereas collagen type-III was more abundant in primary keloid-derived human dermal fibroblast (pKHDF) co-cultures. Collagen type-V was present as a minor component in the skin. TGF-β1, SMAD2 and SMAD4 were expressed more in the pKHDF than the pNHDF co-cultures. Co-cultures with normal keratinocytes suppressed collagen type-III, SMAD2, SMAD4 and TGF-β1 expressions and CPSRT-NC-bicarbonate enhanced this effect. In conclusion, the CPSRT-NC-bicarbonate in association with normal-derived keratinocytes demonstrated an ability to reduce TGF-β1, SMAD2 and SMAD4 expressions in keloid-derived fibroblast cultures, which may be useful in keloid intervention.
    Matched MeSH terms: Collagen Type III/metabolism
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