中国组织工程研究 ›› 2024, Vol. 28 ›› Issue (2): 165-171.doi: 10.12307/2023.966

• 组织构建细胞学实验 cytology experiments in tissue construction •    下一篇

椎间盘退变程度与髓核中miRNA-142-3p、混合谱系激酶3及白细胞介素1β的相关性

周树良,徐  良,钱学峰,曾金才,朱立帆   

  1. 苏州市第九人民医院,江苏省苏州市  215200
  • 收稿日期:2022-10-19 接受日期:2023-01-04 出版日期:2024-01-18 发布日期:2023-06-29
  • 通讯作者: 朱立帆,主任医师,苏州市第九人民医院骨科,江苏省苏州市 215200
  • 作者简介:周树良,男,1987年生,江苏省吴江市人,汉族,硕士,主治医师,主要从事脊柱外科、创伤骨科研究。
  • 基金资助:
    苏州市科技发展计划(民生科技)项目(SS202090),项目负责人:朱立帆;苏州市吴江区“科教兴卫”项目(WWK202006),项目负责人:朱立帆

Correlation between the expression of miRNA-142-3p, mixed lineage kinase 3 and interleukin-1beta in nucleus pulposus and the degree of lumbar intervertebral disc degeneration

Zhou Shuliang, Xu Liang, Qian Xuefeng, Zeng Jincai, Zhu Lifan   

  1. Suzhou Ninth People’s Hospital, Suzhou 215200, Jiangsu Province, China
  • Received:2022-10-19 Accepted:2023-01-04 Online:2024-01-18 Published:2023-06-29
  • Contact: Zhu Lifan, Chief physician, Suzhou Ninth People’s Hospital, Suzhou 215200, Jiangsu Province, China
  • About author:Zhou Shuliang, Master, Attending physician, Suzhou Ninth People’s Hospital, Suzhou 215200, Jiangsu Province, China
  • Supported by:
    Suzhou Science and Technology Development Plan for People’s Wellbeing, No. SS202090 (to ZLF); Suzhou Wujiang District "Science and Education for Health" Project, No. WWK202006 (to ZLF)

摘要:


文题释义:

椎间盘退变:是指因椎间盘的形态和生理功能发生重大变化,最终导致其承压和扭转负荷能力下降的疾病,该病发病因素复杂,与遗传、年龄、过度力学负载、外伤等密切相关。椎间盘退变是诱发成年人腰痛的重要原因之一,也是导致腰椎管狭窄症、腰椎间盘突出症等椎间盘退行性疾病的病理生理学基础,严重者甚至可以导致患者劳动能力的丧失。

miRNA:是一类具有生物活性的非编码短链RNA,它们能够通过与mRNA 3’UTR端的特异性互补序列相结合从而介导mRNA的降解或是抑制蛋白质的翻译。因此,miRNA是调控其他蛋白质编码基因的基因,在调节细胞稳态的机制中发挥重要作用。


背景:研究表明,miRNA水平与椎间盘细胞的凋亡和增殖、细胞外基质代谢和炎症反应密切相关,而miR-142-3p在椎间盘退变中的具体作用尚不清楚。
目的:探讨人腰椎间盘髓核组织中 miRNA-142-3p、混合谱系激酶3、白细胞介素1β表达与椎间盘退变程度的相关性。
方法:选择2020年1月至2022年3月在苏州市第九人民医院因腰椎间盘退行性疾病而行手术的患者82例,术前均行MRI 检查,根据Videman分级标准将患者分为轻度退变组(n=36)、中度退变组(n=26)和重度退变组(n=20),获取82份髓核组织标本,检测各组髓核组织中 miRNA-142-3p、混合谱系激酶3、白细胞介素1β、Ⅰ型胶原和Ⅱ型胶原的基因表达,以及混合谱系激酶3、白细胞介素1β、Ⅰ型胶原和Ⅱ型胶原的蛋白表达,采用Spearman相关系数法评估miRNA-142-3p、混合谱系激酶3、白细胞介素β表达与腰椎间盘退变程度的相关性。采用随机数字表法将30只成年SD大鼠分为假手术组(仅穿刺皮肤与肌肉后处死)、轻度退变组(穿刺Co7/8椎间盘1周后处死)与重度退变组(穿刺Co7/8椎间盘2周后处死),每组10只,检测各组髓核组织中混合谱系激酶3、白细胞介素1β的蛋白表达,以及miRNA-142-3p、混合谱系激酶3、白细胞介素1β的基因表达。

结果与结论:①人髓核组织:miRNA-142-3p的表达由高到低的顺序为轻度退变组>中度退变组>重度退变组(P < 0.05),混合谱系激酶3、白细胞介素1β 基因与蛋白表达由低到高的顺序为:轻度退变组<中度退变组<重度退变组(P < 0.05),Ⅰ型胶原基因与蛋白表达由低到高的顺序为:轻度退变组<中度退变组<重度退变组(P < 0.05),Ⅱ型胶原基因与蛋白表达由高到低的顺序为:轻度退变组>中度退变组>重度退变组的趋势(P < 0.05);Spearman相关分析显示,椎间盘退变程度与miRNA-142-3p表达呈负相关(P < 0.05),与混合谱系激酶3、白细胞介素1β表达呈正相关(P < 0.05);②大鼠髓核组织:与假手术组比较,轻度退变组髓核组织中混合谱系激酶3、白细胞介素1β 基因与蛋白表达升高(P < 0.05),miRNA-142-3p表达降低(P < 0.05);与轻度退变组比较,重度退变组髓核组织中混合谱系激酶3、白细胞介素1β 基因与蛋白表达升高(P < 0.05),miRNA-142-3p表达降低(P < 0.05);③结果表明,人腰椎间盘退变程度与髓核组织中 miRNA-142-3p表达呈负相关,与混合谱系激酶3和白细胞介素1β表达呈正相关。

https://orcid.org/0000-0003-1995-0076(周树良)

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

关键词: 腰椎间盘, 髓核组织, miRNA-142-3p, 混合谱系激酶3, 白细胞介素1β, 相关性

Abstract: BACKGROUND: MicroRNA (miRNA) levels are closely related to cell apoptosis and proliferation, extracellular matrix metabolism and inflammatory response in intervertebral disc cells. However, the specific role of miR-142-3p in lumbar intervertebral disc degeneration remains unclear.
OBJECTIVE: To investigate the correlation between the expression of miRNA-142-3p, mixed lineage kinase 3 and interleukin-1β in nucleus pulposus tissue and degree of human lumbar intervertebral disc degeneration. 
METHODS: A total of 82 patients with lumbar intervertebral disc degenerative diseases in Suzhou Ninth People’s Hospital from January 2020 to March 2022 were collected as the study subjects, all of whom underwent MRI examination before operation. According to the Videman classification, the patients were divided into mild degeneration group (n=36), moderate degeneration group (n=26) and severe degeneration group (n=20). Eighty-two specimens of the nucleus pulposus were obtained. The mRNA expression of miRNA-142-3p as well as the mRNA and protein expression of mixed lineage kinase 3, interleukin-1β, type I collagen, type II collagen in nucleus pulposus tissue were detected by qPCR and western blot assay. The correlation between the degree of human lumbar intervertebral disc degeneration and the expression levels of miRNA-142-3p, mixed lineage kinase 3, and interleukin-1β was also assessed using the Spearman correlation coefficient method. Thirty adult Sprague-Dawley rats were divided into sham-operated group (executed after puncturing skin and muscle only), mild degeneration group (executed 1 week after puncturing Co7/8 segments) and severe degeneration group (executed 2 weeks after puncturing Co7/8 segments), with 10 rats in each group. After that, we detected the protein expression of mixed lineage kinase 3 and interleukin-1β as well as the gene expression of miRNA-142-3p, mixed lineage kinase 3 and interleukin-1β in the nucleus pulposus tissue.
RESULTS AND CONCLUSION: In human nucleus pulposus tissue, the miRNA-142-3p expression ranked from high to low as follows: mild degeneration group > moderate degeneration group > severe degeneration group (P < 0.05); the gene and protein expression of mixed lineage kinase 3 and interleukin-1β from low to high was as follows: mild degeneration group < moderate degeneration group < severe degeneration group (P < 0.05); the gene and protein expression of type I collagen from low to high was as follows: mild degeneration group < moderate degeneration group < severe degeneration group (P < 0.05), and the gene and protein expression of type I collagen from high to low was as follows: mild degeneration group > moderate degeneration group > severe degeneration group (P < 0.05). Spearman correlation analysis showed that the degree of disc degeneration was negatively correlated with miRNA-142-3p expression (P < 0.05) and positively correlated with mixed lineage kinase 3 and interleukin-1β expression (P < 0.05). In rat nucleus pulposus tissue, compared with the sham-operated group, the expression of mixed lineage kinase 3 and interleukin-1β gene and protein was elevated in the mild degeneration group (P < 0.05) while miRNA-142-3p expression was decreased (P < 0.05); compared with the mild degeneration group, the expression of mixed lineage kinase 3 and interleukin-1β gene and protein was increased in the severe degeneration group (P < 0.05) while miRNA-142-3p expression was decreased (P < 0.05). To conclude, the degree of human lumbar intervertebral disc degeneration is negatively correlated with miRNA-142-3p expression and positively correlated with mixed lineage kinase 3 and interleukin-1β expression in nucleus pulposus tissue. 

Key words: lumbar intervertebral disc degeneration, nucleus pulposus tissue, miRNA-142-3p, mixed lineage kinase 3, interleukin-1β, correlation

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