Stem Cell Res Ther:自体基质血管部分细胞移植促进机械拉伸皮肤的再生

2021-09-03 MedSci原创 MedSci原创

皮肤对体内机械拉伸的再生反应已经在修复大规模畸形的重建手术中得到了探索。皮肤的再生能力限制了重建的结果。发表于Stem Cell Res Ther的一项随机、盲法、安慰剂对照研究评估了将自体基质血管部

皮肤对体内机械拉伸的再生反应已经在修复大规模畸形的重建手术中得到了探索。皮肤的再生能力限制了重建的结果。发表于Stem Cell Res Ther的一项随机、盲法、安慰剂对照研究评估了将自体基质血管部分(SVF)细胞和机械拉伸结合起来促进皮肤再生的疗效。

该项临床试验筛选了22名接受组织扩张皮肤已无再生能力的参与者。最终20名符合条件的参与者接受了SVF的皮内注射或安慰剂治疗。在4、8、12周时进行随访以评估疗效,在2年时进行随访以评估安全性。主要终点是12周时扩张的皮肤厚度。次要终点包括4周和8周的皮肤厚度、扩张指数(EI)和12周的皮肤纹理评分。

 

结果显示,SVF组的皮肤厚度在8周(平均差异为0.78[95% CI - 1.43 to - 0.11];p = 0.018)和12周(0.65[95% CI - 1.30 to - 0.01];p = 0.046)都明显高于对照组。SVF组,4周(0.49 [95% CI - 0.80 to - 0.06]; p = 0.010)到8周(0.45 [95% CI - 0.92 to 0.02]; p = 0.026)皮肤厚度的增加都很明显,并在12周后保持不变,而对照组的皮肤厚度在8周后减少(0.42 [95% CI - 0.07 to 0.91]; p = 0.037)。SVF组比对照组显示出更大的EI增长(0.50 [95% CI - 0.00 to 0.99]; p = 0.047)。在12周时,SVF组的皮肤纹理评分高于对照组。在组织学上,SVF处理过的扩张皮肤显示出更多的增殖细胞和血管,细胞外基质体积增加。没有严重的不良事件发生。

综上,该研究结果表明,移植SVF细胞可以加快机械拉伸诱导的皮肤再生的能力,并为临床重建提供丰富的组织。

 

原始出处:

 

Poh-Ching Tan, et al., A randomized, controlled clinical trial of autologous stromal vascular fraction cells transplantation to promote mechanical stretch-induced skin regeneration. Stem Cell Res Ther. 2021 Apr 15;12(1):243. doi: 10.1186/s13287-021-02318-5.

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    2021-11-03 维他命
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