Objective: To examine the link between cytokines in intervertebral disc (IVD) tissues and axial back pain. Design: In vitro study with human IVD cells cultured from cadaveric donors and annulus fibrosus (AF) tissues from patients. Results: Cultured nucleus pulposus (NP) and AF cells were stimulated with interleukin (IL)-1 beta. IL-8 and IL-7 gene expression was analyzed using real-time polymerase chain reaction. IL-8 protein was quantified by enzyme-linked immunosorbent assay. After IL-1 beta stimulation, IL-8 gene expression increased 26,541 fold in NP cells and 22,429 fold in AF cells, whereas protein released by the NP and AF cells increased 2,389- and 1,784-fold, respectively. IL-7 gene expression increased 3.3-fold in NP cells (P < 0.05). Cytokine profiles in AF tissues collected from patients undergoing surgery for back pain (painful group) or scoliosis (controls) were compared by cytokine array. IL-8 protein in the AF tissues from patients with back pain was 1.81-fold of that in controls. IL-7 and IL-10 in AF tissues from the painful group were 6.87 and 4.63 times greater than the corresponding values in controls, respectively (P < 0.05). Conclusion: Inflammatory mediators found in AF tissues from patients with discogenic back pain are likely produced by IVD cells and may play a key role in back pain.
Intervertebral Disc Cells Produce Interleukins Found In Patients With Back Pain
摘要:
DOI:
10.1097/PHM.0000000000000399
关键词:
Intervertebral Disc; Discogenic Back Pain; Chemokine; Cytokine; Interleukin;
年份:
2016
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