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Updated: Jun 12, 2025

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对人类皮肤中日间钟基因表达的分析皮肤爆炸

William Cvammen¹, Michael G Kemp^1,2

¹Department of Pharmacology & Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, Ohio, USA.

JID innovations : skin science from molecules to population health

|September 24, 2024

概括

人类皮肤扩展体在核心时钟基因表达中表现出强大的昼夜节律ex vivo. 这种模型为研究皮肤生物学和昼夜节律提供了新的途径,考虑到个体间的变化.

科学领域:

皮肤病学皮肤病学
时间生物学时间生物学
分子生物学分子生物学

背景情况:

皮肤生理和生物化学表现出24小时的生理节律变化.
之前关于皮肤昼夜节律的研究依赖于动物模型或人类受试者,限制了实验范围.
人体皮肤中昼夜节律的ex vivo分析以前没有被探索过.

研究的目的:

为了研究人体皮肤中核心时钟基因的昼夜节律性,Explants ex vivo.
建立一种新的实验系统来研究皮肤昼夜生物.

主要方法:

使用了人体面膜切除术皮肤样本.
采用RT-qPCR来量化24小时内四个核心昼夜钟基因的表皮表达.
将基因表达数据与人类受试者研究中的现有微阵列数据进行比较.

主要成果:

在基因表达特征中观察到显著的个体间变异性.
在个体皮肤扩展体内的多个时钟基因中展示了强大的昼夜振荡.
与体内人体研究相比,确定了相似之处和差异,在探索者中,峰值表达时间分布更大.

结论:

人体皮肤探头可以作为研究ex vivo昼夜节律的可行模型.
观察到的扩散体变异性部分归因于供体年龄和性别分布.
这种实验系统为推进昼夜皮肤生物学研究提供了宝贵的工具.

关键词:

循环节的时钟是循环节的时间.基因表达基因表达基因表达皮肤扩展剂皮肤扩展剂紫外线和紫外线是什么?

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Circadian Rhythms and Gene Regulation

Circadian Rhythms and Gene Regulation

The biological clock is involved in many aspects of regulating complex physiology in all animals. It was in 1935 when German zoologists, Hans Kalmus and Erwin Bünning, discovered the existence of circadian rhythm in Drosophila melanogaster. However, the internal molecular mechanisms behind the circadian clock remained a mystery until 1984, when Jeffrey C. Hall, Michael Rosbash, and Michael W. Young discovered the expression of the Per gene oscillating over a 24-hour cycle. In subsequent...