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Exercise-induced engagement of the IL-15/IL-15Rα axis promotes anti-tumor immunity in pancreatic cancer
Cancer Cell ( IF 48.8 ) Pub Date : 2022-06-02 , DOI: 10.1016/j.ccell.2022.05.006
Emma Kurz 1 , Carolina Alcantara Hirsch 2 , Tanner Dalton 3 , Sorin Alberto Shadaloey 1 , Alireza Khodadadi-Jamayran 4 , George Miller 5 , Sumedha Pareek 6 , Hajar Rajaei 7 , Chirayu Mohindroo 7 , Seyda Baydogan 7 , An Ngo-Huang 8 , Nathan Parker 9 , Matthew H G Katz 10 , Maria Petzel 11 , Emily Vucic 12 , Florencia McAllister 13 , Keri Schadler 6 , Rafael Winograd 14 , Dafna Bar-Sagi 12
Affiliation  

Aerobic exercise is associated with decreased cancer incidence and cancer-associated mortality. However, little is known about the effects of exercise on pancreatic ductal adenocarcinoma (PDA), a disease for which current therapeutic options are limited. Herein, we show that aerobic exercise reduces PDA tumor growth, by modulating systemic and intra-tumoral immunity. Mechanistically, exercise promotes immune mobilization and accumulation of tumor-infiltrating IL15Rα CD8 T cells, which are responsible for the tumor-protective effects. In clinical samples, an exercise-dependent increase of intra-tumoral CD8 T cells is also observed. Underscoring the translational potential of the interleukin (IL)-15/IL-15Rα axis, IL-15 super-agonist (NIZ985) treatment attenuates tumor growth, prolongs survival, and enhances sensitivity to chemotherapy. Finally, exercise or NIZ985 both sensitize pancreatic tumors to αPD-1, with improved anti-tumor and survival benefits. Collectively, our findings highlight the therapeutic potential of an exercise-oncology axis and identify IL-15 activation as a promising treatment strategy for this deadly disease.

中文翻译:


运动诱导的 IL-15/IL-15Rα 轴参与可促进胰腺癌的抗肿瘤免疫



有氧运动与降低癌症发病率和癌症相关死亡率有关。然而,人们对运动对胰腺导管腺癌(PDA)的影响知之甚少,目前这种疾病的治疗选择有限。在此,我们证明有氧运动通过调节全身和肿瘤内免疫来减少 PDA 肿瘤的生长。从机制上讲,运动促进免疫动员和肿瘤浸润 IL15Rα CD8 T 细胞的积累,从而发挥肿瘤保护作用。在临床样本中,还观察到肿瘤内 CD8 T 细胞的运动依赖性增加。 IL-15 超级激动剂 (NIZ985) 治疗强调了白细胞介素 (IL)-15/IL-15Rα 轴的转化潜力,可减弱肿瘤生长、延​​长生存期并增强对化疗的敏感性。最后,运动或 NIZ985 都能使胰腺肿瘤对 αPD-1 敏感,从而改善抗肿瘤和生存益处。总的来说,我们的研究结果强调了运动-肿瘤学轴的治疗潜力,并将 IL-15 激活确定为治疗这种致命疾病的一种有前途的治疗策略。
更新日期:2022-06-02
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