Chinese Journal of Tissue Engineering Research ›› 2022, Vol. 26 ›› Issue (23): 3750-3755.doi: 10.12307/2022.678

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Interleukin-27 is associated with the pathogenesis of lumbar disc herniation

Xue Huawei1, 2, Zhu Min1, 2, Li Yuqian1, 2   

  1. 1Department of Orthopedics, the Third People’s Hospital of Nantong, Nantong 226000, Jiangsu Province, China; 2Nantong University School of Medicine, Nantong 226000, Jiangsu Province, China
  • Received:2021-05-06 Accepted:2021-06-24 Online:2022-08-18 Published:2022-02-12
  • Contact: Li Yuqian, Master, Chief physician, Associate professor, Department of Orthopedics, the Third People’s Hospital of Nantong, Nantong University, Nantong 226000, Jiangsu Province, China
  • About author:Xue Huawei, Master, Associate chief physician, Department of Orthopedics, the Third People’s Hospital of Nantong, Nantong University, Nantong 226000, Jiangsu Provence, China
  • Supported by:
    the Research project of Nantong Health and Family Planning Commission, No. WKZL2018065 (to XHW)

Abstract: BACKGROUND: Inflammation is an important mechanism underlying lumbar disc herniation. Th17 cells play a key role in immune activation. Interleukin-27 can inhibit Th17 cell differentiation by down-regulating the expression of interleukin-6 and transforming growth factor-β, and plays an important role in a variety of autoimmune diseases. However, little is known about the relationship between interleukin-27 and lumbar disc herniation.
OBJECTIVE: To investigate the levels of interleukin-27 in patients with lumbar disc herniation, and to explore their association with lumbar intervertebral disc herniation.
METHODS: This study enrolled 36 patients with lumbar disc herniation, 18 healthy controls, and 8 patients undergoing emergency surgery for thoracolumbar burst fracture. Patients with lumbar disc herniation received posterior fenestration discectomy, posterior lumbar interbody fusion (PLIF) or transforaminal lumbar interbody fusion. The pain intensity of the patients was scored using a visual analogue scale (VAS) before operation. Serum interleukin-27 and interleukin-17 levels in peripheral blood were determined by enzyme linked immunosorbent assay (ELISA). Samples of nucleus pulposus from patients with lumbar disc herniation and those with thoracolumbar burst fractures (considered as normal nucleus pulposus samples) were taken for detection of interleukin-27 and interleukin-17 mRNA and protein using quantitative real-time PCR and western blot assay, respectively.
RESULTS AND CONCLUSION: Patients with lumbar disc herniation had significantly higher serum interleukin-27 levels than healthy controls (P < 0.001). Interleukin-17 levels were also significantly higher in the patients with lumbar disc herniation. The protein and mRNA expression levels of interleukin-27 and interleukin-17 in the nucleus pulposus were significantly higher in patients with lumbar disc herniation than patients with thoracolumbar burst fractures (P < 0.001).  The expression of interleukin-27 was significantly higher in patients with mild pain than those with severe pain (P < 0.01). To conclude, inflammation is responsible for the pain experienced by patients with lumbar disc herniation, and interleukin-27 is involved in the pathogenesis of lumbar disc herniation.

Key words: interleukin-27, interleukin-17, lumbar disc herniation, blood, nucleus pulposus, intervertebral disc

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