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. 2014 Jan 16;3(3):299–307. doi: 10.5966/sctm.2013-0120

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Figure 3. — Wharton’s jelly-derived mesenchymal stem cell (WJ-MSC) paracrine effects on the expression of profibrotic proteins in keloid fibroblasts. (A): Upregulation of profibrotic proteins in keloid fibroblasts through one-way paracrine signaling WJ-MSCs, or WJ-MSC-conditioned medium. (B): Upregulation of profibrotic proteins in human keloid skin fibroblasts cocultured with WJ-MSCs via a Transwell insert system. Two different keloid samples were investigated for protein studies. ∗, p ≤ .05. Abbreviations: IL, interleukin; TGF, transforming growth factor.