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IF13.1!恭喜南京医科大学张茜副教授团队前后接连拿下《Nature》子刊!

  • 2026-06-05 01:57:52
IF13.1!恭喜南京医科大学张茜副教授团队前后接连拿下《Nature》子刊!

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引言

前几天我们欣赏了她的IF19.5!恭喜南京医科大学副教授在《Nature》子刊上连发两篇!,今天这篇简直是“进化”版,从“被动依赖巨噬细胞能量”到“主动重塑免疫格局”。

南京医科大学张茜教授团队在《Neuro-Oncology》发表研究,首次完整揭示了NQO1是GSCs抗氧化应激和重塑免疫抑制微环境的关键节点——NQO1通过清除ROS保护核Lamin B1稳定性,阻止染色质碎片泄漏到胞质激活cGAS-STING-IFN通路,从而维持免疫逃逸。靶向NQO1的老药β-lapachone与PD-1抗体联用在免疫健全模型中显著延长生存、增强CD8+T细胞浸润。

文献解读

文章题目:NQO1介导的胶质母细胞瘤氧化应激抵抗及肿瘤微环境重塑

发表期刊:Nature

发表时间:2026年1月

影响因子:13.1/Q1

01

研究背景

胶质母细胞瘤是中枢神经系统最具侵袭性的恶性肿瘤,标准治疗后中位生存期不足2年,其难治性与胶质母细胞瘤干细胞及免疫抑制性肿瘤微环境密切相关。

02

研究方法

细胞模型:患者来源GSCs与NSCs对比,颅内移植瘤模型评估NQO1的体内功能。

分子技术:蛋白质组学+单细胞RNA-seq+ChIP-seq锁定NQO1在GSCs中高表达;shRNA敲低+Co-IP+免疫荧光验证NQO1-Lamin B1互作及NRF2转录调控。

功能实验:神经球形成+极限稀释实验检测GSC自我更新;ROS检测+IFNα/β ELISA+流式分析氧化应激和免疫微环境变化。

研究结果

01

NQO1在GSCs中特异性高

表达且与ROS富集相关

张茜教授团队用蛋白质组学把GSCs和NSCs拉出来一比,NQO1稳坐差异蛋白头把交椅【图1A】H3K27ac ChIP-seq确认GSCs中NQO1启动子处于激活状态。单细胞RNA-seq显示NQO1与SOX2阳性细胞重叠率高达88.86%【图1C】。空间转录组展示NQO1与ROS通路基因在组织切片上分布高度一致【图1H】

图1. GSCs中活性氧的富集及NQO1的优先表达

给读者建议

从蛋白到表观到单细胞到空间,四位一体锁定靶点特异性——蛋白组初筛→ChIP验证启动子→单细胞看定位→空间看微环境,这套分析逻辑可直接迁移到任何GSC或TME功能蛋白的筛选课题。

02

NQO1维持GSCs增殖与自我更新

shNQO1一上,GSCs的神经球形成直接被打残——数量砍掉一半以上,直径也明显缩水【图2C】。但这只是表象,更关键的问题是——NQO1到底影不影响GSC的“干细胞性”?极限稀释实验给出答案:839GSCs的干细胞频率从1/12骤降到1/89【图2G】。这不是简单的“长得慢了”,而是GSC最核心的自我更新和自我维持能力被从根本上削弱。

体内实验更直观。颅内移植瘤模型中,NQO1敲除组小鼠的中位生存期从28天拉到45天【图2I】——同样的GSCs,只差一个基因的表达水平,生存曲线被硬生生拉开了,肿瘤体积也明显缩小。

图2. NQO1对GSC的增殖和自我更新至关重要

给读者建议:

从体外球形成到极限稀释到体内成瘤,NQO1在GSC维持中的因果地位用三套实验串得明明白白。极限稀释实验加上ELDA在线平台分析是量化“干细胞性”的标准方法,比单纯数球径更有说服力——同样的体外表型,多跑一层干细胞频率分析,审稿人挑不出“是否只是增殖抑制而非干性受损”的毛病。

03

NQO1通过Lamin B1

稳定抵抗氧化应激

IP-MS和Co-IP把NQO1的结合蛋白钓出来,Lamin B1直接排进Top 4【图3D】。Co-IP反向拉一遍——NQO1和Lamin B1确实在GSCs里物理上绑在一起,不是质谱的假阳性。

接下来看功能后果。NQO1一敲,Lamin B1蛋白水平大幅下降——降解量增加了近2倍【图3F】。与此同时,ROS水平蹿升了1.8倍【图3G】。这两件事是不是因果关系?用抗氧化剂NAC一试就清楚——NAC把ROS压下去后,Lamin B1蛋白水平恢复了【图3I】。但注意——NAC不影响NQO1本身的表达,说明NQO1是通过清除ROS来间接保护Lamin B1,而不是直接做Lamin B1的“分子伴侣”。

图3. NQO1可抵御氧化应激并稳定胶质母细胞瘤干细胞中的核层粘连蛋白843 B1

给读者建议:

这里有一个值得迁移的实验设计:IP-MS初筛互作蛋白→NAC回复实验验证ROS依赖性→LC3-II/Lamin B1互作变化锁定自噬通路。这套“互作鉴定→ROS依赖→降解途径”三件套,是研究“氧化应激-蛋白稳定性”轴的通用逻辑框架,可以直接迁移到其他抗氧化因子或氧化应激相关课题。

04

NQO1抑制

cGAS-STING-IFN通路

NQO1一敲,核膜漏了——胞质dsDNA增多,cGAS-STING通路直接拉响警报【图4D-E】pTBK1上调2.3倍,IFNβ分泌从12pg/mL飙到45 pg/mL【图4H】。RNA-seq GSEA也锁定IFN-α应答是NQO1敲除后最显著激活的Hallmark通路,DHX58、GBP2等ISG上调1.5-3倍【图4A-C】

图4. NQO1抑制cGAS-I型干扰素信号通路

给读者建议:

NQO1把抗氧化和天然免疫通过“核膜完整性”这个物理节点串了起来——ROS清不掉→Lamin B1降解→核膜漏→dsDNA泄漏→cGAS-STING激活→IFN爆发。用GSEA的Hallmark做预排序富集锁定核心通路,比单纯堆GO/KEGG柱状图更能抓到真正的生物学主题。

05

NRF2转录调控NQO1

NRF2是NQO1上游的转录调控总阀门。ChIP-qPCR实锤NRF2直接坐在NQO1启动子上,富集倍数是IgG的5.2倍【图5C】。NRF2一敲,NQO1蛋白水平砍掉约60%,Lamin B1跟着降解,pTBK1和pSTING全线拉高【图5G-H】

回补实验把层级关系钉死——在NRF2敲低细胞里过表达NQO1,Lamin B1恢复,cGAS-STING被压回去【图5H】。反过来只补LMNB1只能部分救下游,NQO1本身回不来。

图5. NRF2通过转录水平调控NQO1

给读者建议:

NRF2→NQO1→Lamin B1→cGAS-STING的调控层级,用ChIP证明结合+TF敲低看靶基因变化+靶基因回补看能否绕过TF缺失三件套焊死。

06

β-拉帕醌联合抗PD-1增强疗效

机制讲完,转化落地——NQO1抑制剂β-lapachone是已进临床试验的老药。五种GSCs的IC50全在0.3-0.8μM【图6A】。体内才是亮点β-lapachone+抗PD-1联用把中位生存期拉到62天,单药只有42天和35天【图6G】CD8+T细胞浸润增加2.1倍,IFNγ+亚群提高1.8倍【图6I】

图6. β-Lapachone联合PD-1抗体在907模型中的治疗效果:抑制肿瘤生长

給读者建议:

NQO1抑制→ROS升高→cGAS-STING激活→IFN分泌→CD8+T细胞招募→PD-1抗体再松开刹车。从分子到免疫到生存,整条逻辑链在体内完全贯通。老药有现成药代数据,转化路径比从头开发短得多。

文章小结

这篇《Neuro-Oncology》用“蛋白质组学发现→多组学验证→机制纵深解析→免疫微环境重塑→临床药物联用”的完整闭环,首次揭示了NQO1-ROS-Lamin B1-cGAS-STING轴是GSCs同时维持氧化应激抵抗和免疫抑制微环境的核心枢纽。

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  1. CONNECT:[ UseTime:0.000390s ] mysql:host=127.0.0.1;port=3306;dbname=b460;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000587s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000302s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000283s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000505s ]
  6. SELECT * FROM `set` [ RunTime:0.000195s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000566s ]
  8. SELECT * FROM `article` WHERE `id` = 558053 LIMIT 1 [ RunTime:0.005504s ]
  9. UPDATE `article` SET `lasttime` = 1781471012 WHERE `id` = 558053 [ RunTime:0.006726s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.011168s ]
  11. SELECT * FROM `article` WHERE `id` < 558053 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000597s ]
  12. SELECT * FROM `article` WHERE `id` > 558053 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.002935s ]
  13. SELECT * FROM `article` WHERE `id` < 558053 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000762s ]
  14. SELECT * FROM `article` WHERE `id` < 558053 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.010758s ]
  15. SELECT * FROM `article` WHERE `id` < 558053 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.015481s ]
0.134629s