Roques Claude, Téot Luc
Pediatric Rehabilitation Centre, CSRE Lamalou le Haut, Lamalou les Bains, France.
Int J Low Extrem Wounds. 2008 Sep;7(3):137-45. doi: 10.1177/1534734608320786. Epub 2008 Jul 8.
Mechanisms for keloid formation include drastic changes in growth factor actions, collagen turnover, mechanical forces applied over the skin, and genetic and immunologic contributions. The use of corticosteroids to manage keloids increases basic fibroblast growth factor production while decreasing transforming growth factor-beta1 production by human dermal fibroblasts, endogenous vascular endothelial growth factor, and insulin-like growth factor-1. The use of corticosteroid injections is, to date, the core treatment available for the management of excessive tissue production in scars. Currently, the most effective and safe regimen for keloid management appears to be the use of corticotherapy-injection of intradermal steroids after a surgical excision.
瘢痕疙瘩形成的机制包括生长因子作用、胶原蛋白更新、皮肤所受机械力以及遗传和免疫因素的剧烈变化。使用皮质类固醇治疗瘢痕疙瘩可增加碱性成纤维细胞生长因子的产生,同时减少人真皮成纤维细胞、内源性血管内皮生长因子和胰岛素样生长因子-1产生的转化生长因子-β1。迄今为止,皮质类固醇注射是治疗瘢痕过度组织增生的核心方法。目前,瘢痕疙瘩治疗最有效且安全的方案似乎是手术切除后进行皮内类固醇注射的皮质激素疗法。