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来自猪的原可以通过激活整合素信号来促进重新表皮化

Krishan Mistry^1,2, Grant Richardson^1,3, Sara Vleminckx⁴

¹Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, Tyne and Wear, UK.

Wound repair and regeneration : official publication of the Wound Healing Society [and] the European Tissue Repair Society

|April 4, 2024

概括

来自猪的原可以通过促进皮肤细胞迁移和增殖,显著增强伤口愈合. 这些发现强调了它们作为慢性不愈合的皮肤伤口的新疗法的潜力.

科学领域:

皮肤病学皮肤病学
生物技术是生物技术.
细胞生物学细胞生物学

背景情况:

慢性不愈合的伤口对全球健康构成了重大挑战.
现有的伤口愈合疗法仍然不足,需要新的方法.
原在促进伤口愈合过程方面表现有前途.

研究的目的:

调查来自猪的原在促进皮肤伤口愈合方面的有效性.
阐明潜在的分子机制,包括细胞信号通路和受体相互作用.
在ex vivo人类皮肤模型中评估原蛋白的治疗潜力.

主要方法:

在体外研究中,使用角质细胞和皮肤纤维细胞来评估细胞迁移,增殖和信号传递.
利用siRNA介导的整合素β1的淘汰来研究其在原蛋白诱导信号传递中的作用.
在人体3D皮肤对应物进行的ex vivo实验,这些人接受了穿孔活检诱导的伤口.

主要成果:

猪衍生的原增加了皮细胞和皮肤纤维细胞表达的整合素α2β1.1.
观察到细胞外信号相关激酶 (ERK) -焦点粘附激酶 (FAK) 信号级联的激活.
整体素β1 knockdown 损害了原诱导的伤口关闭和ERK-FAK信号在角质细胞中,但不是在皮肤纤维细胞中.
原蛋白通过增强重新上皮化,在人体皮肤等价物中促进了伤口的关闭.

结论:

来自猪的原可以有效地促进伤口的关闭和重新表皮化.
该机制涉及整合素α2β1和不同类型皮肤细胞中ERK-FAK信号通路的差异激活.
这些代表了表面皮肤伤口愈合的有前途的治疗策略.

关键词:

原蛋白酸是一种原蛋白酸.角质细胞 (keratinocytes) 是一种细胞.重新上皮质化的发生.伤口愈合伤口愈合

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