Kang Bo Mi, Ahn Jung Min, Kim Jieun, Paik Kyungho, Kim Bo Ri, Lee Dong Hun, Youn Sang Woong, Eom Keun-Yong, Choi Chong Won
Department of Dermatology, Seoul National University Bundang Hospital, Seongnam, Korea.
Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea.
Ann Dermatol. 2025 Jun;37(3):152-161. doi: 10.5021/ad.25.001.
BACKGROUND: Despite various therapeutic modalities for keloids have been introduced; however, their therapeutic effects are limited. Therefore, the development of a new approach for inhibiting collagen production by scar fibroblasts is needed. OBJECTIVE: To investigate the effect of electrical stimulation using a low-frequency and low-intensity alternating current on collagen and MMP-1 levels in human dermal fibroblasts. METHODS: Low-frequency (20 kHz) and low-intensity (1 V/cm) electrical stimulations were applied to primary dermal fibroblasts. The production of type I procollagen and expression of matrix metalloproteinase-1 were evaluated. Transcriptomic analyses were conducted to explore the possible modes of action of electrical stimulation. RESULTS: Electrical stimulation effectively suppressed type I procollagen production and increased MMP-1 expression. In addition, transcriptomic analyses revealed that electrical stimulation altered the gene expression associated with membrane permeability and the structure of cellular membranes. Validation using real-time polymerase chain reaction revealed that electrical stimulation significantly altered the expression of mechanosensitive ion channels () and membrane-bound protein organizing caveolae (). CONCLUSION: Electrical stimulation using low-frequency and low-intensity alternating currents effectively modulates extracellular matrix homeostasis by altering the cellular membrane structure and function. Our findings suggest a promising therapeutic approach for the management of keloids and hypertrophic scars.
背景:尽管已经引入了多种治疗瘢痕疙瘩的方法,但其治疗效果有限。因此,需要开发一种新的方法来抑制瘢痕成纤维细胞产生胶原蛋白。 目的:研究低频低强度交流电电刺激对人皮肤成纤维细胞中胶原蛋白和基质金属蛋白酶-1(MMP-1)水平的影响。 方法:对原代皮肤成纤维细胞施加低频(20kHz)和低强度(1V/cm)电刺激。评估I型前胶原蛋白的产生和基质金属蛋白酶-1的表达。进行转录组分析以探索电刺激可能的作用方式。 结果:电刺激有效抑制I型前胶原蛋白的产生并增加MMP-1的表达。此外,转录组分析表明电刺激改变了与膜通透性和细胞膜结构相关的基因表达。使用实时聚合酶链反应进行的验证表明,电刺激显著改变了机械敏感离子通道和膜结合蛋白组织小窝的表达。 结论:低频低强度交流电电刺激通过改变细胞膜结构和功能有效调节细胞外基质稳态。我们的研究结果提示了一种治疗瘢痕疙瘩和增生性瘢痕的有前景的治疗方法。
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