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Oncogenic KRAS-Driven Metabolic Reprogramming in Pancreatic Cancer Cells Utilizes Cytokines from the Tumor Microenvironment.
Cancer Discovery ( IF 28.2 ) Pub Date : 2020-04-01 , DOI: 10.1158/2159-8290.cd-19-0297
Prasenjit Dey 1 , Jun Li 2 , Jianhua Zhang 2 , Surendra Chaurasiya 3 , Anders Strom 3 , Huamin Wang 4 , Wen-Ting Liao 1 , Frederick Cavallaro 1 , Parker Denz 5 , Vincent Bernard 6 , Er-Yen Yen 2 , Giannicola Genovese 7 , Pat Gulhati 1 , Jielin Liu 8 , Deepavali Chakravarti 1 , Pingna Deng 1 , Tingxin Zhang 1 , Federica Carbone 7 , Qing Chang 3 , Haoqiang Ying 8 , Xiaoying Shang 1 , Denise J Spring 1 , Bidyut Ghosh 6 , Nagireddy Putluri 9 , Anirban Maitra 6 , Y Alan Wang 1 , Ronald A DePinho 1
Affiliation  

A hallmark of pancreatic ductal adenocarcinoma (PDAC) is an exuberant stroma comprised of diverse cell types that enable or suppress tumor progression. Here, we explored the role of oncogenic KRAS in protumorigenic signaling interactions between cancer cells and host cells. We show that KRAS mutation (KRAS*) drives cell-autonomous expression of type I cytokine receptor complexes (IL2rγ-IL4rα and IL2rγ-IL13rα1) in cancer cells that in turn are capable of receiving cytokine growth signals (IL4 or IL13) provided by invading Th2 cells in the microenvironment. Early neoplastic lesions show close proximity of cancer cells harboring KRAS* and Th2 cells producing IL4 and IL13. Activated IL2rγ-IL4rα and IL2rγ-IL13rα1 receptors signal primarily via JAK1-STAT6. Integrated transcriptomic, chromatin occupancy, and metabolomic studies identified MYC as a direct target of activated STAT6 and that MYC drives glycolysis. Thus, paracrine signaling in the tumor microenvironment plays a key role in the KRAS*-driven metabolic reprogramming of PDAC. SIGNIFICANCE: Type II cytokines, secreted by Th2 cells in the tumor microenvironment, can stimulate cancer cell-intrinsic MYC transcriptional upregulation to drive glycolysis. This KRAS*-driven heterotypic signaling circuit in the early and advanced tumor microenvironment enables cooperative protumorigenic interactions, providing candidate therapeutic targets in the KRAS* pathway for this intractable disease.

中文翻译:

胰腺癌细胞中致癌 KRAS 驱动的代谢重编程利用来自肿瘤微环境的细胞因子。

胰腺导管腺癌 (PDAC) 的一个标志是由多种细胞类型组成的旺盛基质,这些细胞类型能够促进或抑制肿瘤进展。在这里,我们探讨了致癌 KRAS 在癌细胞和宿主细胞之间的致瘤信号相互作用中的作用。我们表明,KRAS 突变 (KRAS*) 驱动 I 型细胞因子受体复合物(IL2rγ-IL4rα 和 IL2rγ-IL13rα1)在癌细胞中的细胞自主表达,而癌细胞又能够接收入侵提供的细胞因子生长信号(IL4 或 IL13)。微环境中的 Th2 细胞。早期肿瘤病变显示含有 KRAS* 的癌细胞和产生 IL4 和 IL13 的 Th2 细胞非常接近。活化的 IL2rγ-IL4rα 和 IL2rγ-IL13rα1 受体主要通过 JAK1-STAT6 发出信号。整合转录组,染色质占据,和代谢组学研究确定 MYC 是激活的 STAT6 的直接靶标,并且 MYC 驱动糖酵解。因此,肿瘤微环境中的旁分泌信号在 KRAS* 驱动的 PDAC 代谢重编程中起关键作用。意义:由肿瘤微环境中的 Th2 细胞分泌的 II 型细胞因子可以刺激癌细胞内在的 MYC 转录上调以驱动糖酵解。这种在早期和晚期肿瘤微环境中由 KRAS* 驱动的异型信号通路能够实现协同促肿瘤发生相互作用,为这种难治性疾病提供 KRAS* 通路中的候选治疗靶点。由肿瘤微环境中的 Th2 细胞分泌的 II 型细胞因子可以刺激癌细胞内在的 MYC 转录上调以驱动糖酵解。这种在早期和晚期肿瘤微环境中由 KRAS* 驱动的异型信号通路能够实现协同促肿瘤发生相互作用,为这种难治性疾病提供 KRAS* 通路中的候选治疗靶点。由肿瘤微环境中的 Th2 细胞分泌的 II 型细胞因子可以刺激癌细胞内在的 MYC 转录上调以驱动糖酵解。这种在早期和晚期肿瘤微环境中由 KRAS* 驱动的异型信号通路能够实现协同促肿瘤发生相互作用,为这种难治性疾病提供 KRAS* 通路中的候选治疗靶点。
更新日期:2020-04-01
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