吉林大学学报(医学版) ›› 2026, Vol. 52 ›› Issue (3): 764-780.doi: 10.13481/j.1671-587X.20260319

• 临床研究 • 上一篇    下一篇

DEB-TACE与c-TACE治疗中晚期肝细胞癌的免疫微环境差异及TRADD介导Th17分化的机制

曹耿飞1,沙娅·玛哈提null2,顾俊鹏1,纪卫政1,阿斯哈尔·哈斯木null1,任伟新1()   

  1. 1.新疆医科大学第一附属医院介入放射科,新疆 乌鲁木齐 830054
    2.新疆医科大学第一附属医院 肿瘤中心,新疆 乌鲁木齐 830054
  • 收稿日期:2025-11-02 接受日期:2026-02-03 出版日期:2026-05-28 发布日期:2026-06-08
  • 通讯作者: 任伟新 E-mail:rwx1031@163.com
  • 作者简介:曹耿飞(1989-),男,山东省菏泽市人,主治医师,医学硕士,主要从事肝癌介入治疗方面的研究。
  • 基金资助:
    国家自然科学基金地区科学基金项目(32360189)

Differences in immune microenvironment between DEB-TACE and c-TACE in treatment of hepatocellular carcinoma and mechanism of TRADD-mediated Th17 differentiation

Gengfei CAO1, SHAYA·Mahati2,Junpeng GU1,Weizheng JI1, ASIHAER·Hasimu1,Weixin REN1()   

  1. 1.Department of Interventional Radiology,First Affiliated Hospital,Xinjiang Medical University,Urumqi 830054,China
    2.Department of Oncology,First Affiliated Hospital,Xinjiang Medical University,Urumqi 830054,China
  • Received:2025-11-02 Accepted:2026-02-03 Online:2026-05-28 Published:2026-06-08
  • Contact: Weixin REN E-mail:rwx1031@163.com

摘要:

目的 探讨药物洗脱微球经动脉化疗栓塞(DEB-TACE)与传统经动脉化疗栓塞(c-TACE)治疗中晚期肝细胞癌(HCC)后局部免疫微环境的差异,阐明肿瘤坏死因子受体相关死亡结构域蛋白(TRADD)介导CD4+T淋巴细胞向17型辅助性T淋巴细胞(Th17)分化的可能机制。 方法 回顾性收集56例接受TACE治疗的中晚期HCC患者临床样本,分为DEB-TACE组和c-TACE组,每组28例。采用高通量RNA测序技术比较2组患者术前和术后HCC组织的基因表达谱及免疫细胞浸润丰度,流式细胞术分选2组患者HCC组织中的CD4+T淋巴细胞和Th17细胞,实时荧光定量PCR(RT-qPCR)法、Western blotting法和免疫荧光法检测细胞中TRADD及白细胞介素(IL)-23A等相关分子表达情况。体外分离活化原代CD4+T淋巴细胞,构建TRADD过表达(TRADD-OE)和敲低(TRADD-KD)模型,采用噻唑蓝(MTT)法检测各组CD4+ T淋巴细胞增殖活性,流式细胞术检测各组CD161+CCR6+ Th17细胞百分率,酶联免疫吸附试验(ELISA)法测定各组细胞上清液中IL-17水平,Western blotting法和RT-qPCR法检测各组细胞中Janus激酶(JAK)/信号转导与转录激活因子(STAT)信号通路关键蛋白磷酸化JAK-2(p-JAK2)、磷酸化STAT3(p-STAT3)蛋白表达水平以及下游转录因子芳香烃受体(AHR)和RAR相关孤儿受体γt(RORγt)mRNA及蛋白表达水平。联合使用JAK抑制剂(Ruxolitinib)干预TRADD-OE细胞,再次检测上述Th17细胞分化和信号通路指标。 结果 与c-TACE组比较,DEB-TACE组术后HCC组织中TRADDIL-23A mRNA表达水平明显升高(P<0.05),且中央记忆CD4+T淋巴细胞和Th17细胞的浸润丰度明显升高。与c-TACE组比较,DEB-TACE组HCC组织中CD4+T淋巴细胞百分率明显升高(P<0.05),且分选出的CD4+T淋巴细胞和Th17细胞中TRADDIL-23A mRNA及蛋白表达水平均明显升高(P<0.01)。与Con-OE组比较,TRADD-OE组CD4+T淋巴细胞增殖活性明显升高(P<0.01),CD161+CCR6+ Th17细胞百分率和上清中IL-17水平均明显升高(P<0.01),细胞中p-JAK2p-STAT3AHRRORγt mRNA及蛋白表达水平均明显升高(P<0.01);与Con-KD组比较,TRADD-KD组上述各项指标均明显降低(P<0.01)。JAK抑制剂干预后,与TRADD-OE组比较,TRADD-OE+JAK inhibitor组CD161+CCR6+ Th17细胞百分率和上清中IL-17水平均明显降低(P<0.01),细胞中CD161和CCR6蛋白荧光强度以及AHRRORγt mRNA及蛋白表达水平均明显降低(P<0.01)。 结论 DEB-TACE相较于c-TACE能更显著地重塑HCC局部免疫微环境并增加Th17细胞浸润,其作用机制可能与TRADD高表达并激活JAK/STAT信号通路,进而上调AHR和RORγt表达,促进CD4+T淋巴细胞向Th17细胞分化有关。

关键词: 肝细胞癌, 药物洗脱微球经动脉化疗栓塞, 免疫微环境, 肿瘤坏死因子受体相关死亡结构域蛋白, 17型辅助性T淋巴细胞, Janus激酶, 信号转导与转录激活因子

Abstract:

Objective To investigate the differences in the local immune microenvironment after drug-eluting bead transarterial chemoembolization (DEB-TACE) and conventional transarterial chemoembolization (c-TACE) for intermediate-advanced hepatocellular carcinoma (HCC), and to clarify the possible mechanism by which tumor necrosis factor receptor-associated death domain (TRADD) mediates the differentiation of CD4+T lymphocytes into T helper 17 (Th17) lymphocytes. Methods The clinical samples from 56 patients with intermediate-advanced HCC who received TACE treatment were retrospectively collected and divided into DEB-TACE group and c-TACE group, with 28 cases in each group. High-throughput RNA sequencing was used to compare the changes in gene expression profiles and infiltration abundance of immune cells in HCC tissue before and after treatment in two groups. Flow cytometry was applied to sort CD4+T lymphocytes and Th17 cells from HCC tissues in two groups. The expressions of TRADD, interleukin (IL)-23A, and other related molecules in the cells were detected by real-time quantitative PCR (RT-qPCR) method, Western blotting method, and immunofluorescence method. The primary CD4+T lymphocytes were isolated and activated in vitro, and TRADD overexpression (TRADD-OE) and knockdown (TRADD-KD) models were constructed. The proliferation viability of CD4+T lymphocytes was detected by methytthiazolyl diphenyl-tetra zolilim(MTT) assay; the percentages of CD161+CCR6+ in Th17 cells in various group were detected by flow cytometry; the levels of IL-17 in the cell supernatant in various groups were measured by ELISA. The expression levels of key proteins of Janus kinase/signal transducer pathway and activator of transcription(STAT) signal phosphorylated-JAK2 (p-JAK2) and phosphorylated-STAT3 (p-STAT3) proteins and its downstream transcription factors aryl hydrocarbon receptor (AHR) and RAR-related orphan receptor gamma t (RORγt) mRNA and proteins were detected by Western blotting and RT-qPCR methods. The JAK inhibitor (Ruxolitinib) was used to intervene in TRADD-OE cells, and the aforementioned Th17 differentiation and signaling pathway indicators were detected again. Results Compared with c-TACE group, the expression levels of TRADD and IL-23A in post-operation HCC tissue in DEB-TACE group were significantly increased (P<0.05), and the infiltration abundance of central memory CD4+T lymphocytes and Th17 cells was significantly increased. Compared with c-TACE group, the percentage of CD4+ T lymphocytes in HCC tissue in DEB-TACE group was significantly increased (P<0.05), and the expression levels of TRADD and IL-23A mRNA and protein in the sorted CD4+T lymphocytes and Th17 cells were significantly increased (P<0.01). Compared with Con-OE group, the proliferation activity of CD4+T lymphocytes in TRADD-OE group was significantly increased (P<0.01); the of CD161+CCR6+ Th17 cells and the level of IL-17 in the supernatant were significantly increased (P<0.01); the expression levels of p-JAK2p-STAT3AHR, and RORγt mRNA and proteins in the cells were all significantly increased (P<0.01). Compared with Con-KD group, the above indicators in TRADD-KD group were all significantly decreased (P<0.01). After intervention with JAK inhibitor, compared with TRADD-OE group, the percentage of CD161+CCR6+ Th17 cells and the level of IL-17 in the supernatant in TRADD-OE+JAK inhibitor group were significantly decreased (P<0.01), and the fluorescence intensities of CD161 and CCR6, as well as the expression levels of AHR and RORγt mRNA and proteins in the cells, were significantly decreased (P<0.01). Conclusion Compared with c-TACE, DEB-TACE can more significantly remodel the local immune microenvironment of HCC and increase Th17 cell infiltration. Its mechanism may be related to the high expression of TRADD and activating the JAK/STAT signaling pathway, thereby upregulating AHR and RORγt expressions and promoting the differentiation of CD4+T lymphocytes into Th17 cells.

Key words: Hepatocellular Carcinoma, Drug-eluting bead transarterial chemoembolization, Immune microenvironment, Tumor necrosis factor receptor-associated death domain, T helper 17 lymphocyte, Janus Kinase, Signal transducer and activator of transcription

中图分类号: 

  • R735.7