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논문 기본 정보

자료유형
학술저널
저자정보
Kang Mirin (Duksung Women’s University) Cho Lee Ae-Ri (Duksung Women’s University)
저널정보
한국약제학회 Journal of Pharmaceutical Investigation Journal of Pharmaceutical Investigation 제51권 제3호
발행연도
2021.1
수록면
327 - 336 (10page)

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Purpose Dose-dependent pro- or anti-scar-preventing effects of amniotic membrane extract (AME) are unclear. This study investigated the dose-dependent effects of freeze-dried AME on connective tissue growth factor (CTGF) and α-smooth muscle action (α-SMA) (key determinants of excessive scarring) expression in an attempt to develop medication for scarless wound healing. Methods The inhibitory effect of freeze-dried AME on α-SMA was visualized through immunofluorescence confocal microscopy. The suppressive effect of 10 different concentrations of AME (0.0025?0.25 μg/mL) on CTGF and α-SMA was determined, and rates of collagen lattice contraction were measured. Results AME inhibited the trans-differentiation of fibroblasts to myofibroblasts, a hallmark of scar formation. AME downregulated CTGF and α-SMA in a dose-dependent manner; supplementation of 0.0175 μg/mL of AME in cell culture media downregulated CTGF (by 49%; p < 0.05) and α-SMA (by 33%; p < 0.05) relative to control values, the effect saturating with a subsequent increase in AME levels to 0.025 μg/mL. Collagen lattice contraction was maximally inhibited (75 ± 8%) upon treatment with 0.0175 μg/mL AME relative to the control (44 ± 6%). Conclusion AME downregulates α-SMA and inhibits the trans-differentiation of fibroblasts to myofibroblasts in a dosedependent manner. Treatment of cells with high AME concentrations retained high α-SMA concentration levels. A delicate balance between the wound healing properties and pro-fibrotic abilities of AME should be considered for selecting an appropriate therapeutic dose.

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