中国组织工程研究 ›› 2018, Vol. 22 ›› Issue (20): 3167-3171.doi: 10.3969/j.issn.2095-4344.0838

• 肌肉肌腱韧带组织构建 tissue construction of the muscle, tendon and ligament • 上一篇    下一篇

重组人生长素在毛囊生长与毛囊促生长因子表达中的作用

张友来,辛国华,曾元临,江  澜,王  晓,邹立津   

  1. Zhang You-lai, Xin Guo-hua, Zeng Yuan-lin, Jiang Lan, Wang Xiao, Zou Li-jin
  • 收稿日期:2018-01-24 出版日期:2018-07-18 发布日期:2018-07-18
  • 通讯作者: 邹立津,博士,副主任医师,南昌大学第一附属医院烧伤科,江西南昌市 330006
  • 作者简介:张友来,男,1983年生,江西吉安市人,汉族,山东大学在读临床在职博士,主治医师,主要从事创面修复与组织工程皮肤研究。
  • 基金资助:

    江西省卫计委科技支撑计划(12010637)

Effect of recombinant human growth hormone on the growth of hair follicle and the expression of related growth factors

南昌大学第一附属医院烧伤科,江西省南昌市  330006   

  1. Department of Burn, the First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China
  • Received:2018-01-24 Online:2018-07-18 Published:2018-07-18
  • Contact: Zou Li-jin, M.D., Associate chief physician, Department of Burn, the First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China
  • About author:Zhang You-lai, Doctoral candidate, Attending physician, Department of Burn, the First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China
  • Supported by:

    the Science and Technology Supporting Plan Project of Health and Family Planning Commission of Jiangxi Province, No. 12010637

摘要:

文章快速阅读:

文题释义:
重组人生长激素:由重组DNA技术生产而得。其化学结构包括氨基酸序列、氨基酸组成经鉴定与脑垂体生长激素完全相同。分子式是一条由191个氨基酸组成的多肽链。在53位与165及182与189之间由二硫键连接。
毛囊的作用:通常在每个毛孔或毛囊内生长一根头发(但也有生长两三根的)。毛囊向下伸入真皮约有1 cm深度,它是由包绕毛发与表皮相连的上皮鞘,以及皮脂腺和立毛肌所组成的一个结构比较复杂的器官附件组织。毛囊实际上是由结缔组织和上皮两部分所组成,除了具有结缔组织和血管的真皮乳头(毛乳头)外,毛囊其余部分都是由表皮细胞分化而来。毛囊开口起始于皮肤表面,而每个毛囊又和一个或多个腺胞相连。每个腺胞解离成富含脂质的物质,却又通过一个共同和毛囊相通连的皮脂腺导管将分泌物运送到皮肤表面排出。在毛囊发育和周期性生长调控中起主导作用的毛球的基底部向内凹陷的部分叫毛乳头。
摘要
背景
:有研究显示脱发区域中的毛囊干细胞并未消失,只是处于异常的休止状态而无法产生毛发。
目的:通过观察重组人生长素对体外毛囊培养中的效果,以证实重组人生长素对毛发再生的有效性,并拟从蛋白表达角度探讨可能的作用机制。
方法:将分离完整的毛囊随机分成实验组与对照组,实验组分别置入重组人生长素浓度分别为0.01,0.1,1,10,20与40 IU/L无血清毛囊生长培养液中,对照组则置入不含生长素的培养液中。每孔放入6根完整毛囊,置37 ℃、体积分数5%CO2培养箱中培养,在倒置显微镜下用目镜测微尺每天测量每根毛囊的长度并记录;并检测应用生长素后的生长因子表达。
结果与结论:①与对照组相比,实验各组不同时间段毛囊生长速度均有不同程度的增快,有一定的浓度依赖性,10 IU/L时达到较好效果浓度,随后减弱。1 IU/L组、10 IU/L组生长长度显著长于对照组(P < 0.05);②生长素毛囊生长曲线显示,各组均呈不同角度向上,0.1、40 IU/L组效果相近,而且6 d前生长斜度最大,      6 d后生长斜度减小;③蛋白成分分析显示,应用生长因子后成纤维细胞生长因子、转化生长因子、肿瘤坏死因子β与白细胞介素21表达下降;表皮生长因子、胰岛素样生长因子2、神经生长因子、肝细胞生长因子、干细胞因子等蛋白因子均表达增强;④结果说明,重组人生长素对毛囊的生长有较好的促进作用,可能是通过促进激活多种促毛囊生长因子起作用。

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程
ORCID: 0000-0001-6853-5544(张友来)

关键词: 重组人生长激素, 毛囊, 生长因子, 脱发, 组织构建

Abstract:

BACKGROUND: Alopecia has been shown to be caused by the abnormally inactive state of hair follicle stem cells but not their death.
OBJECTIVE: To confirm the effectiveness of recombinant human growth hormone (rhGH) in promotion of hair regeneration by observing rhGH acting on the hair follicle cultured in vitro, and to explore the possible mechanism at protein level.
METHODS: The individual hair follicle was separated and was randomized into two groups, and then cultured in the serum-free medium containing 0.01, 0.1, 1, 10, 20 and 40 IU/L rhGH, respectively. The cells were cultured in the normal medium served as the control growp. Six individual hair follicles were added into each pore, and incubated in an incubator at 37 ℃ and 5% CO2. Its length was measured using ocular micrometer under inverted contrast microscope daily. Additionally, the expression levels of growth factors were tested after rhGH application.
RESULTS AND CONCLUSION: Compared with the control group, the growth speed of hair follicle was increased at different degrees after different concentrations of rhGH was applied. The optimal concentration of rhGH was 10 IU/L, and then decreased. The length of hair follicle in the 1, and 10 IU/L groups was significantly longer than that in the control group (P < 0.05). The growth curve of hair follicle showed a rising tendency in each group, and 0.1 and 40 IU/L rhGH revealed the similar effect. The largest growth gradient appeared before day 6, followed by a slight increase. rhGH downregulated the expression levels of fibroblast growth factor, transforming growth factor, tumor necrosis factor β and interleukin-21, and upregulated the levels of epidermal growth factor, insulin-like growth factor 2, nerve growth factor, hepatocyte growth factor, and stem cell factor. In summary, rhGH exerts a positive effect on the growth of hair follicle possibly by activating a variety of related growth factors.

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程

Key words: Human Growth Hormone, Hair Follicle, Cytokines, Alopecia, Tissue Engineering

中图分类号: