增长停止特定-6和血管毒素受体类似的信号驱动器口腔再生性伤口修复
Michelle F Griffin1, Jessica Cook2, Annah Morgan1
1Department of Surgery, Division of Plastic and Reconstructive Surgery, Institute of Stem Cell Biology and Regenerative Medicine, Stanford University, School of Medicine, Stanford, CA 94305, USA.
Science translational medicine
|July 2, 2025
概括
口腔粘膜由于增长停止特异性-6 (GAS6) -血管毒素受体类似 (AXL) 信号传递而没有痕. 激活AXL促进再生愈合,并减少皮肤伤口中的纤维化.
科学领域:
- 再生医学是一种再生医学.
- 伤口愈合生物学 伤口愈合生物学
- 纤维化研究 纤维化研究
背景情况:
- 口腔粘膜表现出快速,无痕的伤口修复,与皮肤中纤维性愈合形成鲜明对比.
- 粘膜再生的基础细胞和分子机制尚未完全理解.
研究的目的:
- 确定使口腔粘膜在纤维化上能够再生愈合的机制.
- 调查增长停止特定-6 (GAS6) -血管毒素受体类似 (AXL) 信号在伤口修复中的作用.
主要方法:
- 鼠口粘膜纤维细胞 (OMF) 和面部皮肤纤维细胞 (FSF) 的比较.
- 在体外和体内研究涉及AXL抑制,敲击和GAS6刺激.
- 评估伤口愈合,原沉积,组织和机械信号通路 (FAK激活).
主要成果:
- OMFs使用GAS6-AXL信号来通过焦粘附激酶 (FAK) 抑制纤维化相关的机械信号.
- 在口腔粘膜中的AXL抑制/敲除导致纤维性伤口和增加FAK激活.
- 在面部皮肤中AXL的GAS6刺激促进了再生愈合.
- 人口痕显示GAS6/AXL减少和FAK表达增加.
- 外源GAS6改善了受伤小鼠口腔组织的愈合和减少痕.
结论:
- 在口腔粘膜中,AXL信号对于再生性伤口愈合至关重要.
- 激活AXL足以限制面部皮肤伤口愈合中的纤维化.
- 针对AXL信号提供了一个潜在的治疗策略,可以改善伤口愈合结果并减少痕.
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