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目的:探讨白介素-6（interleukin-6，IL-6）介导酪氨酸激酶1/信号转导子与转录激活子3（januskinase 1/signal transducer and activator of transcription 3，JAK1/STAT3）通路及转化生长因子-β（transforming growth factor-β，TGF-β）/Smad通路通过调节胸腺基质淋巴细胞生成素（thymic stromal lymphopoietin，TSLP）的表达从而促进突出椎间盘重吸收的机制。方法:体外培养大鼠骨髓间充质干细胞及大鼠髓核细胞，分别使用大鼠IL-6重组蛋白、STAT3抑制剂、Smad2/3抑制剂处理培养细胞，使用实时荧光定量PCR技术检测不同条件下JAK1、STAT3、Smad2、TSLP mRNA表达情况；通过免疫印记试验（Western blot）检测不同条件下TSLP、Smad2及磷酸化STAT3蛋白的表达情况；使用酶联免疫吸附测定法检测IL-6作用下大鼠两种细胞中TGF-β的表达情况。结果:大鼠骨髓间充质干细胞中IL-6刺激下JAK1的相对表达量为10 ng/ml组5.13±1.21，100 ng/ml组5.23±0.35，对照组为0.97±0.03；STAT3相对表达量为10 ng/ml组6.50±0.38，100 ng/ml组6.74±0.61，对照组0.87±0.19，较对照组的表达水平均明显升高；同时TSLP也呈现高表达，10 ng/ml组4.26±0.38，100 ng/ml组5.05±0.46，对照组为1.04±0.04。大鼠髓核细胞中STAT3相对表达量为10 ng/ml组2.91±0.08，对照组1.12±0.11；10 ng/ml组TSLP相对表达量为7.32±0.37，对照组1.03±0.03，较对照组的表达水平均明显升高。使用IL-6刺激后观察到大鼠骨髓间充质干细胞中Smad2表达升高，10 ng/ml组15.92±0.62，100 ng/ml组20.28±0.58，对照组0.96±0.08；大鼠髓核细胞中Smad2表达升高，其中10 ng/ml组5.01±0.17，对照组0.96±0.03。加入STAT3抑制剂（BP组）后大鼠骨髓间充质干细胞中TSLP表达下降，BP组0.17±0.01，对照组0.90±0.09；大鼠髓核细胞中TSLP表达同样下降，BP组0.42±0.11，对照组0.90±0.11。加入Smad2/3抑制剂（SB组）后大鼠骨髓间充质干细胞中TSLP表达下降，SB组0.33±0.01，对照组1.02±0.02；大鼠髓核细胞中TSLP表达同样下降，SB组0.40±0.04，对照组0.99±0.01。结论:IL-6/JAK1/STAT3通路与TGF-β/Smad2/3通路协同上调TSLP的表达，进而促进突出椎间盘的重吸收过程。“,”Objective:Resorption can occur after lumbar disc herniation, and Thymic stromal lymphopoietin (TSLP) is considered to be a key factor mediating reabsorption. Studies have found that under the action of inflammatory factors like TNF-α, IL-6, etc,the expression of TSLP in intervertebral disc tissue was increased, and then mononuclear macrophage chemokine-1 (MCP-1) was induced to induce infiltration of macrophage to promote reabsorption. To determine the mechanism, we design the experiment to explore the mechanism of IL-6-mediated JAK/STAT pathway and TGF-β/Smad pathway to promote the reabsorption of intervertebral disc by regulating the expression of TSLP.Methods:Rat bone marrow mesenchymal stem cells (MSC) and rat nucleus pulposus cells (NPC) were cultured in vitro, treating the cells withrat IL-6 recombinant protein, STAT3inhibitor and Smad2/3 inhibitorrespectively, and use real-time quantitative PCR (qRT-PCR) technology to detect the expression of JAK1, STAT3, Smad2, TSLP mRNA under different conditions; Western blot to detect the expression of TSLP, Smad2 and phosphate STAT3 protein; using enzyme-linked immunosorbent assay (Elisa) to detect the expression of TGF-β in two rat cells under the treatment of IL-6.Results:After stimulation ofIL-6 (10 ng/ml or 100 ng/ml) the expression of JAK1in MSC (10 ng/ml: 5.13±1.21; 100 ng/ml: 5.23±0.35; control group: 0.97±0.03), STAT3 (10 ng/ml: 6.50±0.38; 100 ng/ml: 6.74±0.61; control group: 0.87±0.19) was significantly increased, and TSLP also showed high expression in MSC (10 ng/ml: 4.26±0.38; 100 ng/ml: 5.05±0.46; control group: 1.04±0.04).The expression of STAT3 (10 ng/ml: 2.91±0.08; control group: 1.12±0.11), TSLP (10 ng/ml: 7.32±0.37; control group: 1.03±0.03) in NPC also increased. After stimulation of IL-6, the expression of Smad2 increasing in MSC was observed (10 ng/ml: 15.92±0.62; 100 ng/ml: 20.28±0.58; control group: 0.96±0.08), and increased expression of Smad2 in NPC (10 ng/ml: 5.01±0.17; control group: 0.96±0.03). The expression of TSLP in MSC decreased after adding STAT3 inhibitor (BP group, BP group: 0.17±0.01; control group: 0.90±0.09), the expression of TSLP also decreased in NPC (BP group: 0.42±0.11; control group: 0.90±0.11). After adding Smad2/3 inhibitor (SB group), the expression of TSLP in MSC decreased (SB group: 0.33±0.01; control group: 1.02±0.02), and the expression of TSLP in NPC also decreased (SB group: 0.40±0.04; control group: 0.99±0.01).Conclusion:IL-6 up-regulates TSLP expression via the JAK1/STAT3 signaling pathway and promotes prominent intervertebral disc reabsorption. At the same time, IL-6 can activate the TGF-β/Smad2/3 pathway and up-regulate the expression of TSLP, which play a synergistic role in the reabsorption process.