肿瘤 NOS2 和 COX2 与 CD8+ T 细胞的空间并存促进了转移和癌干细胞的形成,从而导致 ER- 乳腺癌的不良预后。

IF 2 Q3 ONCOLOGY Cancer research communications Pub Date : 2024-10-01 DOI:10.1158/2767-9764.CRC-24-0235
Lisa A Ridnour, William F Heinz, Robert Y S Cheng, Adelaide L Wink, Noemi Kedei, Milind Pore, Fatima Imtiaz, Elise L Femino, Ana L Gonzalez, Leandro L Coutinho, Rebecca L Moffat, Donna Butcher, Elijah F Edmondson, Xiaoxian Li, Maria Cristina Rangel, Robert J Kinders, Jens Rittscher, Stanley Lipkowitz, Stephen T C Wong, Stephen K Anderson, Daniel W McVicar, Sharon A Glynn, Timothy R Billiar, Jenny C Chang, Stephen M Hewitt, Stefan Ambs, Stephen J Lockett, David A Wink
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引用次数: 0

摘要

雌激素受体阴性乳腺癌是一种侵袭性很强的亚型乳腺癌,其治疗方法有限。一氧化氮合酶(NOS2)和环氧化酶(COX2)的升高介导了这些肿瘤的免疫抑制和生存率低下。因此,研究人员在 16 例非裔美国人和 5 例白种人 ER- 肿瘤中研究了肿瘤 NOS2/COX2 对免疫结构的影响。肿瘤 NOS2/COX2 升高限制了 CD8+ T 细胞在 5 年生存期内的浸润。确定了不同的 CD8+/-NOS2+/-COX2+/- 表型,这些表型定义了转移细胞和癌症干细胞龛以及免疫荒漠区域。这些结果得到了无偏、无监督非线性降维 UMAP 技术的支持,该技术结合了细胞间的空间关系,并利用 NOS2/CD8 和 COX2/CD8 比率在单独的基因表达队列中进行了验证。此外,拉长的肿瘤细胞特异性地位于 CD8-NOS2+COX2+ 区域,这表明存在转移热点。这项工作证明了 CD8/NOS2/COX2 结构空间分析的预测能力,并支持使用临床上可用的 NOS2/COX2 抑制剂来提高这些侵袭性肿瘤患者的生存率。
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Tumor NOS2 and COX2 Spatial Juxtaposition with CD8+ T Cells Promote Metastatic and Cancer Stem Cell Niches that Lead to Poor Outcome in ER- Breast Cancer.

Significance: This work identifies CD8-NOS2+COX2+ and CD8-NOS2-COX2+ unique cellular neighborhoods that drive the tumor immune spatial architecture of CD8+ T cells predictive of clinical outcome and can be targeted with clinically available NOS inhibitors and NSAIDs.

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