摘要
目的探讨兔椎间盘生理屏障损伤后辅助性T细胞1(Thl)/辅助性T细胞2(Th2)平衡漂移状态。方法采用纤维环穿刺构建兔椎间盘退变的动物模型,在术后1、3d、1、3周采集外周静脉血,采用双抗夹心酶联免疫吸附测定(ELISA)方法,分别检测血清中Th1、Th2型细胞因子水平[肿瘤坏死因子(TNF)-α、干扰素(IFN)-1、白细胞介素(IL)-10及IL-4]。结果造模后的1、3d、1、3周兔血清中TNF-α含量分别为(150.531±56.74)、(83.833±37.434)、(90.990±3.554)、(87.950±13.289)ng/L;IFN-γ含量分别为(99.263±18.421)、(125.427±9.156)、(180.368±18.293)、(165.531±12.548)ng/L,明显高于造模前(P〈0.05),术后各个时间点模型组血清中TNF-α与IFN-γ含量高于假手术组与正常组(P〈0.05)。造模后的1、3d、1、3周兔血清中IL-10含量分别为(33.947±3.164)、(27.928±0.493)、(29.992±4.33)、(30.0254-2.339)ng/L;IL4含量分别为(34.517±3.032)、(35.056±1.882)、(35.983±2.369)、(32.549±5.086)ng/L,与术前比较未见明显增高(P〉0.05)。术后各个时间点模型组血清中IL-10与IL-4含量与假手术组及正常组比较差异无统计学意义(P〉0.05)。结论生理屏障损伤后椎间盘发生退变的机制与Th1优势状态有关。
Objective To explore the state of helper T cell 1 ( Thl ) / helper T cell 2 (Th2) bal- ance drift after physiological barrier injury of rabbit intervertebral disc. Methods A rabbit model of inter- vertebral disc degeneration was established by anular puncture. Peripheral venous blood was collected at 1st, 3rd, 7th, and 21st day after surgery. Serum levels of Thl/Th2 cytokiues [ tumor necrosis factor (TNF) - α, interferon (IFN) - γ, interleukin (IL) - 10 and IL - 4 ] were determined by ELISA. Re- sults At 1 st, 3rd, 7th, and 21st day after surgery, the serum TNF - ct level was ( 150. 531 ± 56. 74), ( 83. 833 ± 37. 434), (90. 990 ± 3. 554) and ( 87. 950 ± 13.289 ) ng,/L respectively, and serum IFN -γ level was (99. 263 ± 18. 421 ), ( 125. 427 ±9. 156), ( 180. 368 ± 18. 293) and ( 165. 531 ± 12. 548) ng/L respec- tively, which were markedly increased after modeling (P 〈0.05 or P 〈0. 01 ). At 1st, 3rd, 7th, and 21st day after modeling, the serum IL - 10 level was (33. 947 ±3. 164), (27.928 ±0. 493), (29. 992 ±4. 33) and (30. 025 ±2.339) ng/L, and serum IL -4 level was (34.517 ±3.032), (35.056 ± 1.882), (35.983 ± 2. 369) and ( 32. 549 ± 5. 086) ng/L respectively. As compared with preoperation, the serum IL - 10 and IL -4 levels in three groups after operation were not significantly increased (P 〉 0. 05 ). There was no significant difference in serum IL - 10 and IL - 4 levels among three groups ( P 〉 0. 05 ). Conclu- sion Mechanism of intervertebral disc degeneration after physiological barrier injury may be related to Thl state.
出处
《中华实验外科杂志》
CAS
CSCD
北大核心
2016年第3期727-729,共3页
Chinese Journal of Experimental Surgery
基金
浙江省自然科学基金(LY12H06004)
国家自然科学基金(81202711)