中国组织工程研究 ›› 2018, Vol. 22 ›› Issue (20): 3256-3262.doi: 10.3969/j.issn.2095-4344.0742

• 组织构建综述 tissue construction review • 上一篇    下一篇

Notch信号通路与退变的髓核细胞:在修复重建中的作用与角色

钟远鸣1,梁梓扬2,何  嘉2,许  伟2,莫日养2   

  1. 1广西中医药大学第一附属医院,广西壮族自治区南宁市  530023;2广西中医药大学,广西壮族自治区南宁市  530001
  • 收稿日期:2017-12-25 出版日期:2018-07-18 发布日期:2018-07-18
  • 作者简介:钟远鸣,男,1963年生,广西壮族自治区南宁市人,壮族,2003年广西中医药大学毕业,硕士,主任医师,教授,硕士生导师,主要从事脊柱脊髓疾病的诊治的研究。
  • 基金资助:

    广西壮族自治区自然科学基金项目(2014GXNSFAA118210)

Notch signaling pathway and the nucleus pulposus cells in degenerative intervertebral disc: roles in the repair and reconstruction

Zhong Yuan-ming1, Liang Zi-yang2, He Jia2, Xu Wei2, Mo Ri-yang2   

  1. 1the First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning 530023, Guangxi Zhuang Autonomous Region, China; 2Guangxi University of Chinese Medicine, Nanning 530001, Guangxi Zhuang Autonomous Region, China
  • Received:2017-12-25 Online:2018-07-18 Published:2018-07-18
  • About author:Zhong Yuan-ming, Master, Chief physician, Professor, Master’s supervisor, the First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning 530023, Guangxi Zhuang Autonomous Region, China
  • Supported by:

    the Natural Science Foundation of Guangxi Zhuang Autonomous Region of China, No. 2014GXNSFAA118210

摘要:

文章快速阅读:
文题释义:
椎间盘退变与干细胞/祖细胞修复:随着时间的推移,胶状髓核的水含量逐渐减少,同时减少和改变的为糖蛋白,原因至今不明,这些改变导致髓核逐渐纤维化,最终导致开裂。血管通过这些外面的开裂进入椎间盘,进而细胞增生和重新排列。同样,细胞死亡数量也相应增加,机制仍不明确。干细胞被定义为具有广泛的自我更新能力和能够产生至少一种类型的高度分化的子代细胞。椎间盘常被认为因缺乏足够的组织特异性干/祖细胞而缺少自我修复能力,但随着对椎间盘内源性修复机制以及组织特异性干/祖细胞的深入研究,椎间盘退变的内源性修复工程展现出相应的潜力及优势。
细胞因子增加Notch途径基因表达导致Notch信号传导的激活:Notch信号传导可能由于退行性椎间盘炎症细胞因子的反应而引起,并且能通过增殖恢复髓核内源细胞的机制来补偿丧失的细胞数量,Notch2受体在中年段退化髓核组织比老年段退化髓核组织表达水平提高,亦提示着该信号系统的活性可能尝试进行细胞和组织上的修复。
摘要
背景:
目前对Notch信号通路调控骨的代谢和发育范畴的研究较为成熟,与这些方面相似,椎间盘细胞增殖和分化亦似乎依赖于Notch信号通路,并对维系退变椎间盘中的髓核细胞增殖、分化具有一定的作用。但现今支持Notch信号通路在椎间盘退变中的调控作用和此种作用对治疗椎间盘退变的相关潜在影响仍存在争议。
目的:综述Notch信号通路在椎间盘退变过程中对髓核细胞的作用机制的研究进展。
方法:计算机检索PubMed、ScienceDirect、Google Scholar、cochrane数据库、CNKI、维普、万方等数据库;以英文检索词“Notch signaling pathway,Intervertebral disc degeneration,Nucleus pulposus cells,Stem and Progenitor cells”,及中文检索词“Notch信号通路,椎间盘退变,髓核细胞,干细胞/祖细胞”进行搜索;查阅国内外有关Notch信号通路在椎间盘退变过程中髓核细胞作用的相关文献,对其进行总结分析。
结果与结论:看似简单的Notch信号通路,在细胞内存在复杂的修饰调节机制。在椎间盘中,抑制Notch信号通路可阻断髓核细胞的增殖,这可能与降低祖细胞的含量有关;缺氧和促炎细胞因子可能是作为通过增殖恢复髓核祖细胞的代偿机制。椎间盘内的缺氧环境介导了髓核中Notch信号传导活性,而促炎细胞因子介导的Notch信号通路在髓核内的表达和活化依赖于其与MAPK和核转录因子kappa B信号通路可能存在的交互作用。Notch信号通路对椎间盘退变中髓核细胞增殖、恢复细胞功能和预防椎间盘变性的潜在修复重建作用值得作进一步的研究。

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: 0000-0001-9899-2199(钟远鸣)

关键词: 组织构建, Notch信号通路, 椎间盘退变, 髓核细胞, 干细胞/祖细胞

Abstract:

BACKGROUND: The Notch signaling pathway regulating bone metabolism and development is well studied. Similarly, the proliferation and differentiation of intervertebral disc cells are closely related to the Notch signaling pathway, and the signaling pathway may sustain the proliferation and differentiation of nucleus pulposus cells in degenerative intervertebral disc. However, the regulatory role and potential effects of Notch signaling pathway in intervertebral disc degeneration remain controversial.
OBJECTIVE: To review the research advances in the mechanisms underlying Notch signaling pathway acting on the nucleus pulposus cells in degenerative intervertebral disc.
METHODS: A computer-based research of PubMed, ScienceDirect, Google Scholar, Cochrane, CNKI, VIP, WanFang databases was conducted for the literature addressing the effect of Notch signaling pathway on the nucleus pulposus cells in degenerative intervertebral disc. The keywords were “Notch signaling pathway, intervertebral disc degeneration, nucleus pulposus cells, stem and progenitor cells” in English and Chinese, respectively. A literature analysis was then performed.
RESULTS AND CONCLUSION: The regulatory mechanisms of Notch signaling pathway in cells are complicated. Inhibition of Notch signaling pathway can inhibit the proliferation of nucleus pulposus cells in intervertebral disc, which may be associated with the reduced content of progenitor cells. Hypoxia activates the Notch signaling pathway in nucleus pulposus cells of the degenerative intervertebral disc, which is a major way to control the proliferation of nucleus pulposus cells. Moreover, inflammatory cytokines induce Notch signaling in nucleus pulposus cells dependent on the possible interaction between the Notch signaling and MAPK, NF-κB signaling pathways. The mechanisms of the repair and regulatory roles of Notch signaling pathway in the nucleus pulposus cells of degenerative intervertebral disc need to be explored further.

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: Signal Transduction, Intervertebral Disck Degeneration, Tissue Engineering

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