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IF12.8!郑州大学团队靠神经 - 肿瘤 - 免疫轴研究,斩获顶刊!

  • 2026-03-31 10:41:25
IF12.8!郑州大学团队靠神经 - 肿瘤 - 免疫轴研究,斩获顶刊!

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引言/

肺癌免疫治疗的耐药谜题竟藏在神经与肿瘤的 “隐秘对话” 中!非小细胞肺癌(NSCLC)占肺癌 80%-85%,免疫检查点抑制剂疗效受限,肿瘤微环境神经浸润的调控作用长期被忽视。这项聚焦神经 - 肿瘤 - 免疫轴的研究,首次揭露 5 - 羟色胺(5-HT)介导的代谢重编程机制,为逆转免疫耐受、升级肺癌治疗策略带来突破性启发!

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研究概况

本研究以 NSCLC 为对象,通过临床样本、细胞实验及小鼠模型,揭示 NGF 驱动神经浸润并诱导神经分泌 5-HT,经 HTR1D 受体激活 PI3K/Akt/mTOR 通路,增强 Warburg 效应,加剧免疫抑制,中和该代谢重编程可提升 PD-1 抑制剂疗效。

研究方法

  • 样本与细胞实验:收集 85 对 NSCLC 临床组织,培养 A549、H460 等细胞系,与 PC12 神经元样细胞共培养,验证神经浸润诱导机制;

  • 分子检测技术:采用 IHC、IF 检测 PGP9.5、5-HT 等表达,RNA-seq 解析转录组变化,Western blot 验证 PI3K/Akt/mTOR 通路蛋白,ELISA 检测 NGF 水平;

  • 代谢分析:通过 Seahorse XFe96 检测 OCR、ECAR,评估糖酵解与氧化磷酸化水平;

  • 动物模型:构建小鼠原位肺癌模型,注射 NGF 诱导神经浸润,评估 5-HT 中和及 PD-1 抑制剂联合治疗效果;

  • 功能验证:CRISPR/Cas9 敲除 HTR1D,使用 2-DG 抑制糖酵解,验证通路特异性。

研究目的

阐明 NSCLC 中神经浸润的调控机制,明确 5-HT 介导的肿瘤代谢重编程对免疫微环境的影响,挖掘 HTR1D、PI3K/Akt/mTOR 等关键靶点,为优化 NSCLC 免疫治疗方案、提升疗效提供理论与实验依据。

研究结果

(1)神经浸润与 NSCLC 不良预后相关

临床样本中,神经标志物 PGP9.5 高表达与淋巴结转移、病理分级升高及 PD-L1 表达相关,患者总生存期显著缩短,肿瘤组织神经浸润程度高于癌旁组织。

图1 神经浸润促进NSCLC的发展和进展

(2)NGF 驱动 NSCLC 神经浸润

NSCLC 细胞分泌 NGF,诱导 PC12 细胞轴突生长,小鼠模型中注射 NGF 显著增加肿瘤体积及 PGP9.5 表达,抑制 NGF 可阻断神经浸润。

图2 非小细胞肺癌分泌神经生长因子以促进轴突形成,神经侵袭程度与5-羟色胺分泌呈正相关。

(3)5-HT 是神经浸润介导的关键递质

神经浸润显著升高肿瘤组织 5-HT 水平,且 5-HT 与 PGP9.5 表达正相关,5-HT 通过 HTR1D 受体促进 NSCLC 细胞增殖、迁移及克隆形成。

图3 5-羟色胺通过HTR1D受体对非小细胞肺癌细胞具有保护作用

(4)5-HT 激活 PI3K/Akt/mTOR 通路增强 Warburg 效应

转录组分析显示 5-HT 显著富集糖酵解通路,上调 HK2、LDHA 等关键酶表达,提升 ECAR 水平,PI3K/mTOR 抑制剂可逆转该代谢重编程。

图4 转录组分析显示5-羟色胺作用后,NSCLC细胞中糖酵解通路显著富集

图5 5-HT通过增强沃堡效应促进NSCLC细胞的存活

图6 5-HT介导的代谢重编程是通过激活PI3K/Akt/mTOR通路实现的

(5)中和代谢重编程增强免疫治疗疗效

5-HT 上调 PD-L1、下调 MHC-I 表达,联合 2-DG(糖酵解抑制剂)与 PD-1 单抗治疗,显著缩小肿瘤体积,增强 CD8+ T 细胞功能。

图7 抑制5-羟色胺介导的肿瘤代谢重编程可以缓解微环境中的免疫耐受

研究意义与创新

一、方法创新🧪

整合临床样本关联分析、细胞共培养模型、多组学技术(转录组 + 代谢组)及动物模型验证,构建 “神经浸润 - 递质分泌 - 代谢重编程 - 免疫抑制” 的全链条研究体系,实现机制解析与治疗验证闭环。

二、机制突破🧬

首次揭示 NSCLC 中 “NGF - 神经浸润 - 5-HT-HTR1D-PI3K/Akt/mTOR-Warburg 效应” 调控轴,明确神经浸润通过代谢重编程诱导免疫抑制,打破传统仅关注免疫细胞与肿瘤细胞互作的认知。

三、临床价值🏥

  • 确立 PGP9.5、5-HT 为 NSCLC 预后及免疫治疗响应的潜在生物标志物;

  • 提供联合靶向 HTR1D/PI3K 通路与 PD-1 抑制剂的治疗策略,为免疫耐药患者提供新方案;

  • 为肿瘤神经生物学与代谢重编程交叉领域的治疗开发提供范例。

总结

本研究揭示神经浸润通过 5-HT 介导的代谢重编程加剧 NSCLC 免疫抑制,明确关键调控靶点与通路,为联合代谢干预与免疫治疗提供新方向,助力改善 NSCLC 患者预后。

如果你也想进行生信分析,快关注后台咨询吧!大佬生信,助力每一个科研梦想!

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  1. CONNECT:[ UseTime:0.000503s ] mysql:host=127.0.0.1;port=3306;dbname=i460;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000577s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.011251s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000313s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000645s ]
  6. SELECT * FROM `set` [ RunTime:0.001395s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000547s ]
  8. SELECT * FROM `article` WHERE `id` = 482138 LIMIT 1 [ RunTime:0.004370s ]
  9. UPDATE `article` SET `lasttime` = 1777153571 WHERE `id` = 482138 [ RunTime:0.010630s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000330s ]
  11. SELECT * FROM `article` WHERE `id` < 482138 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000493s ]
  12. SELECT * FROM `article` WHERE `id` > 482138 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000613s ]
  13. SELECT * FROM `article` WHERE `id` < 482138 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000924s ]
  14. SELECT * FROM `article` WHERE `id` < 482138 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000835s ]
  15. SELECT * FROM `article` WHERE `id` < 482138 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.006045s ]
0.116164s