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Low-frequency electromagnetic fields promote hair follicles regeneration by injection a mixture of epidermal stem cells and dermal papilla cells
Electromagnetic Biology and Medicine ( IF 1.6 ) Pub Date : 2020-07-30 , DOI: 10.1080/15368378.2020.1793165
Xinping Li 1 , Yan Ye 2 , Xiaohan Liu 3 , Liming Bai 1 , Pin Zhao 4 , Wenfang Bai 1 , Mingsheng Zhang 1
Affiliation  

ABSTRACT The bioeffects of low-frequency electromagnetic fields (EMF) on a bio-engineered hair follicle generation had not been fully elucidated. This present study was designed to evaluat the therapeutically effective of low frequency EMF on hair follicles regeneration. In this experiment, epidermal stem cells (ESCs) and dermal papilla (DP) cells were isolated and culture-expanded. Then the mixture containing of ESCs and DP cells was implanted into the epidermal layer or corium layer of nude mice. Those mice were divided at random into the control group and EMF group, 7 days or 14 days later, the skin specimens were harvested to assess for hair regeneration or a bio-engineered skin formation using H&E staining. After injection of the mixture into the epidermal layer of nude mice for 14 days, H&E staining showed that the new hair formed the correct structure comprising hair matrix, hair shaft, and inner root sheath, outer root sheath, and DP. Comparing to the control, the hair follicles erupted at a higher density in the EMF group. When the mixture was implanted into the corium layer for 7 days, comparing with the characteristics of new hair follicles in the control group, H&E staining also showed the mixture induced to form 4 ~ 6 epidermal layers with a higher density of hair follicle like-structures in the bioengineered epithelial layers after EMF exposure. Our results suggested that the injection of a mixture of ESCs and DP cells in combination with EMF exposure facilitated the induction of hair follicle regeneration and a bioengineered skin formation with hair follicle-like structures.

中文翻译:

低频电磁场通过注射表皮干细胞和真皮乳头细胞的混合物促进毛囊再生

摘要 低频电磁场 (EMF) 对生物工程毛囊生成的生物效应尚未完全阐明。本研究旨在评估低频 EMF 对毛囊再生的治疗效果。在这个实验中,表皮干细胞 (ESCs) 和真皮乳头 (DP) 细胞被分离和培养扩增。然后将含有ESCs和DP细胞的混合物植入裸鼠的表皮层或真皮层。将这些小鼠随机分为对照组和 EMF 组,7 天或 14 天后,收集皮肤标本以使用 H&E 染色评估毛发再生或生物工程皮肤形成。将混合物注射到裸鼠表皮层 14 天后,H& E染色显示新发形成正确的结构,包括毛基质、毛干、内根鞘、外根鞘和DP。与对照组相比,EMF 组的毛囊以更高的密度喷发。混合物植入真皮层7天后,与对照组新生毛囊的特征相比,H&E染色也显示混合物诱导形成4~6层表皮层,具有更高密度的毛囊样结构在 EMF 暴露后的生物工程上皮层中。我们的结果表明,注射 ESC 和 DP 细胞的混合物与 EMF 暴露相结合促进了毛囊再生和具有毛囊样结构的生物工程皮肤形成的诱导。毛干、内根鞘、外根鞘和DP。与对照组相比,EMF 组的毛囊以更高的密度喷发。混合物植入真皮层7天后,与对照组新生毛囊特征相比,H&E染色也显示混合物诱导形成4~6层表皮层,具有较高密度的毛囊样结构在 EMF 暴露后的生物工程上皮层中。我们的结果表明,注射 ESC 和 DP 细胞的混合物与 EMF 暴露相结合促进了毛囊再生和具有毛囊样结构的生物工程皮肤形成的诱导。毛干、内根鞘、外根鞘和DP。与对照组相比,EMF 组的毛囊以更高的密度喷发。混合物植入真皮层7天后,与对照组新生毛囊的特征相比,H&E染色也显示混合物诱导形成4~6层表皮层,具有更高密度的毛囊样结构在 EMF 暴露后的生物工程上皮层中。我们的结果表明,注射 ESC 和 DP 细胞的混合物与 EMF 暴露相结合促进了毛囊再生和具有毛囊样结构的生物工程皮肤形成的诱导。在 EMF 组中,毛囊以更高的密度喷发。混合物植入真皮层7天后,与对照组新生毛囊的特征相比,H&E染色也显示混合物诱导形成4~6层表皮层,具有更高密度的毛囊样结构在 EMF 暴露后的生物工程上皮层中。我们的结果表明,注射 ESC 和 DP 细胞的混合物与 EMF 暴露相结合促进了毛囊再生和具有毛囊样结构的生物工程皮肤形成的诱导。在 EMF 组中,毛囊以更高的密度喷发。混合物植入真皮层7天后,与对照组新生毛囊的特征相比,H&E染色也显示混合物诱导形成4~6层表皮层,具有更高密度的毛囊样结构在 EMF 暴露后的生物工程上皮层中。我们的结果表明,注射 ESC 和 DP 细胞的混合物与 EMF 暴露相结合促进了毛囊再生和具有毛囊样结构的生物工程皮肤形成的诱导。E 染色还显示,在 EMF 暴露后,该混合物在生物工程上皮层中诱导形成 4~6 层具有更高密度毛囊样结构的表皮层。我们的结果表明,注射 ESC 和 DP 细胞的混合物与 EMF 暴露相结合促进了毛囊再生和具有毛囊样结构的生物工程皮肤形成的诱导。E 染色还显示,在 EMF 暴露后,该混合物在生物工程上皮层中诱导形成 4~6 层具有更高密度毛囊样结构的表皮层。我们的结果表明,注射 ESC 和 DP 细胞的混合物与 EMF 暴露相结合促进了毛囊再生和具有毛囊样结构的生物工程皮肤形成的诱导。
更新日期:2020-07-30
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