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Targeting Microglial Metabolic Rewiring Synergizes with Immune Checkpoint Blockade Therapy for Glioblastoma

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机构: [1]Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, State Key Laboratory of Biotherapy, West China Second Hospital, Department of Neurosurgery, West China Hospital, Sichuan University and Collaborative Innovation Center, Chengdu, P. R. China [2]Department of Radiation Oncology, Taussig Cancer Center, Cleveland Clinic, Cleveland, OH, USA [3]Department of Neurosurgery, Sichuan People's Hospital, Chengdu, Sichuan, P. R. China [4]University of Pittsburgh Medical Center Hillman Cancer Center, Pittsburgh, PA, USA [5]Department of Pathology, Case Western Reserve University, Cleveland, OH, USA [6]School of Biological Science and Medical Engineering, Southeast University, Nanjing, P. R. China [7]National Clinical Research Center for Geriatrics and Department of General Practice, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, Chengdu, P. R. China [8]Developmental & Stem Cell Biology Program, The Hospital for Sick Children, Toronto, ON, M5G 0A4, Canada [9]The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, Ontario, M5G 0A4, Canada [10]Department of Gynecology, Huzhou Maternity & Child Health Care Hospital, Huzhou, Zhejiang, P. R. China [11]Department of Surgery, The Chinese University of Hong Kong. Prince of Wales Hospital,Shatin, N.T., Hong Kong, SAR, P. R. China [12]School of Basic Medical Sciences, Nanjing Medical University, Nanjing, Jiangsu, P.R. China [13]Immunotherapy Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, Republic of Korea [14]Division of Immunobiology, Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA [15]Division of Neurosurgery, The Hospital for Sick Children, Toronto, ON, M5S 3E1, Canada [16]Department of Neurology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
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关键词: Glioblastoma microglia lipid metabolism immune checkpoint blockade NR4A2 SQLE glioma

摘要:
Glioblastoma (GBM) constitutes the most lethal primary brain tumor for which immunotherapy has provided limited benefit. The unique brain immune landscape is reflected in a complex tumor immune microenvironment (TIME) in GBM. Here, single cell sequencing of the GBM TIME revealed that microglia were under severe oxidative stress, which induced nuclear receptor subfamily 4 group A member 2 (NR4A2)-dependent transcriptional activity in microglia. Heterozygous Nr4a2 (Nr4a2+/-) or microglia-specific Nr4a2 (Nr4a2fl/flCx3cr1cre) genetic targeting reshaped microglia plasticity in vivo by reducing alternatively activated microglia and enhancing antigen presentation capacity for CD8+ T cells in GBM. In microglia, NR4A2 activated squalene monooxygenase (SQLE) to dysregulate cholesterol homeostasis. Pharmacological NR4A2 inhibition attenuated the pro-tumorigenic TIME, and targeting the NR4A2 or SQLE enhanced therapeutic efficacy of immune checkpoint blockade in vivo. Collectively, oxidative stress promotes tumor growth through NR4A2-SQLE activity in microglia, informing novel immune therapy paradigms in brain cancer.

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出版当年[2023]版:
大类 | 1 区 医学
小类 | 1 区 肿瘤学
最新[2023]版:
大类 | 1 区 医学
小类 | 1 区 肿瘤学
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第一作者机构: [1]Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, State Key Laboratory of Biotherapy, West China Second Hospital, Department of Neurosurgery, West China Hospital, Sichuan University and Collaborative Innovation Center, Chengdu, P. R. China
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通讯机构: [1]Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, State Key Laboratory of Biotherapy, West China Second Hospital, Department of Neurosurgery, West China Hospital, Sichuan University and Collaborative Innovation Center, Chengdu, P. R. China [4]University of Pittsburgh Medical Center Hillman Cancer Center, Pittsburgh, PA, USA [16]Department of Neurology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA [*1]University of Pittsburgh Medical Center Hillman Cancer Center, Pittsburgh, PA, USA [*2]Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, State Key Laboratory of Biotherapy, West China Second Hospital, Sichuan University and Collaborative Innovation Center, Chengdu, P. R. China
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