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Gene expression profiling in nucleus pulposus of human ruptured lumbar disc herniation

Affiliation
Suzhou Hospital of Traditional Chinese Medicine ,Suzhou ,China
Li, Xiaochun;
Affiliation
Suzhou Hospital of Traditional Chinese Medicine ,Suzhou ,China
Shen, Xueqiang;
Affiliation
Suzhou Hospital of Traditional Chinese Medicine ,Suzhou ,China
Wang, Zhiqiang;
Affiliation
Suzhou Hospital of Traditional Chinese Medicine ,Suzhou ,China
Jiang, Hong;
Affiliation
Suzhou Hospital of Traditional Chinese Medicine ,Suzhou ,China
Ma, Zhijia;
Affiliation
Suzhou Hospital of Traditional Chinese Medicine ,Suzhou ,China
Yu, Pengfei;
Affiliation
Suzhou Hospital of Traditional Chinese Medicine ,Suzhou ,China
Yu, Zhenhan;
Affiliation
Suzhou Hospital of Traditional Chinese Medicine ,Suzhou ,China
Qian, Xiang;
Affiliation
Suzhou Hospital of Traditional Chinese Medicine ,Suzhou ,China
Liu, Jintao

Purpose: To examine the differences in gene expression between ruptured and non-ruptured nucleus pulposus tissues of the intervertebral discs using gene chip technology. Methods: A total of 8 patients with nucleus pulposus from a lumbar disc herniation (LDH) undergoing discectomy in our hospital were selected, including 4 ruptured and 4 non-ruptured herniated nucleus pulposus cases. Total RNA was extracted from cells by using TRIzol reagent. Nucleus pulposus cDNA probes of the two groups were obtained by the single marker method and hybridized with a human gene expression profiling chip (Agilent). The fluorescence signal images were scanned by a laser, and the obtained genes were analyzed by bioinformatics. Results: There were 75 differentially expressed genes with more than 2-fold-changes, of which 56 were up-regulated and 19 were down-regulated. The differential expression of THSD7A, which was up-regulated 18 times, was the most significant, followed by CCL5, AQP3 and SDC4. Conclusion: THSD7A can be used as a characteristic differentially expressed gene in human ruptured nucleus pulposus. Moreover, CCL5, AQP3 and SDC4 may improve the chemotaxis of stem cell migration for self-healing of damaged disc tissue, increase water uptake by nucleus accumbens cells, and inhibit the inflammatory response, thus delaying the process of intervertebral disc degeneration.

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License Holder: Copyright © 2022 Li, Shen, Wang, Jiang, Ma, Yu, Yu, Qian and Liu.

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