中国组织工程研究 ›› 2017, Vol. 21 ›› Issue (24): 3778-3783.doi: 10.3969/j.issn.2095-4344.2017.24.002

• 软骨组织构建 cartilage tissue construction • 上一篇    下一篇

基于RNA-seq技术分析腰突颗粒防治腰椎间盘退变的转录组学特征

何升华1,赖居易2,孙志涛1,王业广1,王 建1,冯华龙2,黄飞强2   

  1. 1深圳市中医院骨科三病区,广东省深圳市 518033;2广州中医药大学深圳临床医学院,广东省深圳市 518033
  • 修回日期:2017-03-18 出版日期:2017-08-28 发布日期:2017-08-30
  • 作者简介:何升华,男,1965年生,安徽省人,汉族,2003年安徽中医学院毕业,硕士,主任医师,主要从事脊柱外科方面的研究。
  • 基金资助:

    深圳市科技计划项目(JCYJ20150401163247232);广东省中医药局项目(20162126);深圳市卫生计生系统科研项目(201401066)

Molecular mechanism of Yaotu Granules in the prevention and treatment of lumbar disc degeneration based on RNA-seq technology

He Sheng-hua1, Lai Ju-yi2, Sun Zhi-tao1, Wang Ye-guang1, Wang Jian1, Feng Hua-long2, Huang Fei-qiang2   

  1. 1Third Ward of Orthopedics, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen 518033, Guangdong Province, China; 2Shenzhen Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen 518033, Guangdong Province, China
  • Revised:2017-03-18 Online:2017-08-28 Published:2017-08-30
  • About author:He Sheng-hua, Master, Chief physician, Third Ward of Orthopedics, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen 518033, Guangdong Province, China
  • Supported by:

    the Science and Technology Program of Shenzhen, No. JCYJ20150401163247232; the Project of Traditional Chinese Medicine Bureau of Guangdong Province, No. 20162126; the Research Project of Health and Family Planning Commission of Shenzhen, No. 201401066

摘要:

文章快速阅读:

文题释义:
RNA-Seq技术:
采用转录组测序建库的实验方法,可提供精确的数字化表达谱检测。该技术首先将细胞中的所有转录产物中的mRNA进行富集,然后进行随机打断并用随机六碱基引物进行反转录为cDNA,进行文库构建,利用高通量测序仪测序直到获得足够的序列。
腰突颗粒:该方以独活、桑寄生为主药,达祛风除湿,养血和营,活络通痹之功;同时配合牛膝、杜仲、熟地黄补肝肾,强筋骨;再佐以川芎、当归、芍药补血活血,茯苓、甘草益气扶脾使气血旺盛,更助于祛除风湿;此外加以地龙、土鳖、蜈蚣以通络止痛,三棱、莪术破血除瘀,各药合用,是为标本兼顾,扶正祛邪之剂。

 

摘要
背景:
腰突颗粒是课题组治疗腰椎间盘退行性疾病的经验方,一直有较好的临床疗效,但其作用机制一直未明确。
目的:基于转录组测序(RNA-Seq)技术探讨临床经验方腰突颗粒防治腰椎间盘退变的可能分子机制。 
方法:将10只新西兰大白兔按随机数字表随机分为生理盐水组和腰突颗粒组(n=5),生理盐水组予以生理盐水20 mL/次灌胃,腰突颗粒组予以灌服腰突颗粒水煎剂20 mL/次,均2次/d,连续灌胃1周。于最后一次灌胃完成2 h后经颈总动脉采血收集兔血清分别制作为10% DMEM培养液;分别使用2种血清培养液培养人髓核细胞,镜下观察2组细胞形态,锥虫蓝染色后测定2组细胞活力;另取第3代髓核细胞,干预48 h后采用RNA-Seq技术对2组细胞中的mRNA进行检测,进行转录组测序筛选差异mRNA;将得到测序结果进行差异基因表达、GO功能显著性富集及Pathway显著性富集分析。

结果与结论:①腰突颗粒组髓核细胞贴壁后以圆形或梭形多见,胞浆充足,胞核清晰。细胞核核表面光滑,核膜完整,长条状粗面内质网排列整齐,线粒体少,胞质内可见散在溶酶体及纤丝;生理盐水组细胞呈梭形和多角形,细胞核大,核仁多为2或3个,细胞核表面稍粗糙且质网可见轻微扩张,线粒体少且有部分膜不完整;②腰突颗粒组髓核P1、P2、P3代细胞贴壁速度、传代时间及细胞活力均优于生理盐水组(P < 0.05);③比较2组测序结果发现,差异表达基因共有464个,其中上调基因有143个,下调基因有321个。差异基因的GO功能显著性富集分析显示,差异基因主要集中在生物过程部分的细胞调控与代谢过程中。差异基因的Pathway显著性富集分析结果发现,主要集中在代谢相关通路;④综上,通过RNA-Seq技术获得了腰突颗粒防治椎间盘退变作用的差异基因表达谱,腰突颗粒防治椎间盘退变的分子机制主要通过调节上调细胞外基质代谢相关基因及下调多糖合成相关基因实现,可为进一步研究提供基础。

 

 

关键词: 组织构建, 组织工程, 椎间盘退变, RNA-Seq, 中药, 腰突颗粒, 血清干预, 转录组, 基因, 髓核细胞

Abstract:

BACKGROUND: The Herbal Compound formula Yaotu Granules for lumbar disc degeneration has achieved satisfactory efficacy, but the underlying mechanism remains unclear.

OBJECTIVE: To explore the possible molecular mechanisms of Yaotu Granules for lumbar disc degeneration based on transcriptome sequencing (RNA-seq).
METHODS: Ten New Zealand white rabbits were randomly divided into control and experimental groups (n=5 per group), followed by intragastric injection of 20 mL of normal saline and 20 mL of water decoction of Yaotu Granules, respectively, twice daily for consecutive 1 week. The different drug serums were prepared using serum samples obtained from the common carotid artery at 2 hours after the last injection. Human nucleus pulposus cells were cultured in DMEM containing 10% different drug serums to observe the cellular morphology in each group. The cell viability was detected by trypan blue staining. The passage 3 human nucleus pulposus cells were pretreated for 48 hours, the mRNA level was detected using RNA-seq, and the differentially expressed mRNA was screened by RNA-seq. Subsequently, the differential gene expression, Gene Ontology (GO) enrichment analysis and Pathway enrichment analysis were performed.

RESULTS AND CONCLUSION: In the experimental group, there were round or fusiform cells with abundant cytoplasm and clear nuclei that showed smooth surface and complete nuclear membrane; elongated rough endoplasmic reticulum arranged regularly, and less mitochondrion, scattered lysosomes and filaments were visible in the cytoplasm. In the control group, spindle and polygonal cells were found, and the large nuclei with 2 or 3 nucleoli and slightly rough surface were observed; there were mildly dilated endoplasmic reticulum, and few mitochondria with incomplete membrane. The adherent rate, generation time and cell viability of passage 1, 2 and 3 cells in the experimental group were significantly better than those in the control group (P < 0.05). Sequencing results found that there were 464 differentially expressed genes including 143 upregulated, and 321 downregulated genes. GO analysis revealed that the differentiated genes were mainly concentrated on cell regulation and metabolism. Pathway analysis found that mainly differentiated genes focused on the metabolism related pathways. These findings suggest that the differentially expressed gene profile of Yaotu Granules for lumbar disc degeneration is obtained by RNA-seq technology. Yaotu Granules mainly upregulate extracellular matrix metabolism-related genes and downregulate polysaccharide synthesis related genes in the prevention and treatment of lumbar disc degeneration, which provides basis for further research.

 

 

Key words: Intervertebral Disk Degeneration, Drugs, Chinese Herbal, Tissue Engineering

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