当前位置: X-MOL 学术BMC Mol. Cell Biol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
The local hypothalamic-pituitary-adrenal axis in cultured human dermal papilla cells.
BMC Molecular and Cell Biology ( IF 2.4 ) Pub Date : 2020-06-10 , DOI: 10.1186/s12860-020-00287-w
Eun Young Lee 1, 2 , You Jin Nam 1 , Sangjin Kang 1, 3 , Eun Ju Choi 1 , Inbo Han 4 , Jinwan Kim 3 , Dong Hyun Kim 5 , Ji Hae An 5 , Sunghou Lee 6 , Min Ho Lee 7 , Ji Hyung Chung 1
Affiliation  

Stress is an important cause of skin disease, including hair loss. The hormonal response to stress is due to the HPA axis, which comprises hormones such as corticotropin releasing factor (CRF), adrenocorticotropic hormone (ACTH), and cortisol. Many reports have shown that CRF, a crucial stress hormone, inhibits hair growth and induces hair loss. However, the underlying mechanisms are still unclear. The aim of this study was to examine the effect of CRF on human dermal papilla cells (DPCs) as well as hair follicles and to investigate whether the HPA axis was established in cultured human DPCs. CRF inhibited hair shaft elongation and induced early catagen transition in human hair follicles. Hair follicle cells, both human DPCs and human ORSCs, expressed CRF and its receptors and responded to CRF. CRF inhibited the proliferation of human DPCs through cell cycle arrest at G2/M phase and induced the accumulation of reactive oxygen species (ROS). Anagen-related cytokine levels were downregulated in CRF-treated human DPCs. Interestingly, increases in proopiomelanocortin (POMC), ACTH, and cortisol were induced by CRF in human DPCs, and antagonists for the CRF receptor blocked the effects of this hormone. The results of this study showed that stress can cause hair loss by acting through stress hormones. Additionally, these results suggested that a fully functional HPA axis exists in human DPCs and that CRF directly affects human DPCs as well as human hair follicles under stress conditions.

中文翻译:

培养的人真皮乳头细胞中的下丘脑-垂体-肾上腺轴。

压力是皮肤疾病(包括脱发)的重要原因。激素对压力的反应归因于HPA轴,该轴包含激素,如促肾上腺皮质激素释放因子(CRF),促肾上腺皮质激素(ACTH)和皮质醇。许多报告表明,CRF是一种至关重要的应激激素,可抑制头发生长并引起脱发。但是,其潜在机制仍不清楚。这项研究的目的是检查CRF对人真皮乳头细胞(DPC)以及毛囊的影响,并研究在培养的人DPC中是否建立了HPA轴。CRF抑制人的毛囊中的毛发轴伸长并诱导早期的催化作用转变。人DPC和人ORSC的毛囊细胞均表达CRF及其受体,并对CRF作出反应。CRF通过在G2 / M期阻滞细胞周期抑制了人DPC的增殖,并诱导了活性氧(ROS)的积累。在CRF处理的人DPC中,与激素相关的细胞因子水平被下调。有趣的是,人类DPC中的CRF诱导了proopiomelanocortin(POMC),ACTH和皮质醇的增加,而CRF受体的拮抗剂阻断了该激素的作用。这项研究的结果表明,压力可通过通过压力激素起作用而导致脱发。此外,这些结果表明,人DPC中存在功能齐全的HPA轴,而CRF在压力条件下直接影响人DPC以及人的毛囊。在CRF处理的人DPC中,与激素相关的细胞因子水平被下调。有趣的是,人类DPC中的CRF诱导了proopiomelanocortin(POMC),ACTH和皮质醇的增加,而CRF受体的拮抗剂阻断了该激素的作用。这项研究的结果表明,压力可通过通过压力激素起作用而导致脱发。此外,这些结果表明,人DPC中存在功能齐全的HPA轴,而CRF在压力条件下直接影响人DPC以及人的毛囊。在CRF处理的人DPC中,与激素相关的细胞因子水平被下调。有趣的是,人类DPC中的CRF诱导了proopiomelanocortin(POMC),ACTH和皮质醇的增加,而CRF受体的拮抗剂阻断了该激素的作用。这项研究的结果表明,压力可通过通过压力激素起作用而导致脱发。此外,这些结果表明,人DPC中存在功能齐全的HPA轴,而CRF在压力条件下直接影响人DPC以及人的毛囊。
更新日期:2020-06-10
down
wechat
bug