1
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Saadh MJ, Pallathadka H, Abed HS, Menon SV, Sivaprasad GV, Hjazi A, Rizaev J, Suri S, Jawad MA, Husseen B. Detailed role of SR-A1 and SR-E3 in tumor biology, progression, and therapy. Cell Biochem Biophys 2024:10.1007/s12013-024-01350-5. [PMID: 38884861 DOI: 10.1007/s12013-024-01350-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/04/2024] [Indexed: 06/18/2024]
Abstract
The first host defense systems are the innate immune response and the inflammatory response. Among innate immune cells, macrophages, are crucial because they preserve tissue homeostasis and eradicate infections by phagocytosis, or the ingestion of particles. Macrophages exhibit phenotypic variability contingent on their stimulation state and tissue environment and may be detected in several tissues. Meanwhile, critical inflammatory functions are played by macrophage scavenger receptors, in particular, SR-A1 (CD204) and SR-E3 (CD206), in a variety of pathophysiologic events. Such receptors, which are mainly found on the surface of multiple types of macrophages, have different effects on processes, including atherosclerosis, innate and adaptive immunity, liver and lung diseases, and, more recently, cancer. Although macrophage scavenger receptors have been demonstrated to be active across the disease spectrum, conflicting experimental findings and insufficient signaling pathways have hindered our comprehension of the molecular processes underlying its array of roles. Herein, as SR-A1 and SR-E3 functions are often binary, either protecting the host or impairing the pathophysiology of cancers has been reviewed. We will look into their function in malignancies, with an emphasis on their recently discovered function in macrophages and the possible therapeutic benefits of SR-A1 and SR-E3 targeting.
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Affiliation(s)
- Mohamed J Saadh
- Faculty of Pharmacy, Middle East University, Amman, 11831, Jordan
| | | | - Hussein Salim Abed
- Department of Medical Laboratory Techniques, Al-Maarif University College, Al-Anbar, Ramadi, Iraq.
| | - Soumya V Menon
- Department of Chemistry and Biochemistry, School of Sciences, JAIN (Deemed to be University), Bangalore, Karnataka, India
| | - G V Sivaprasad
- Department of Basic Science & Humanities, Raghu Engineering College, Visakhapatnam, India
| | - Ahmed Hjazi
- Department of Medical Laboratory, College of Applied Medical Sciences, Prince Sattam bin Abdulaziz University, Al-Kharj, 11942, Saudi Arabia
| | - Jasur Rizaev
- Department of Public health and Healthcare management, Rector, Samarkand State Medical University, 18, Amir Temur Street, Samarkand, Uzbekistan
| | - Sahil Suri
- Centre of Research Impact and Outcome, Chitkara University, Rajpura, 140417, Punjab, India
| | | | - Beneen Husseen
- Medical Laboratory Technique College, The Islamic University, Najaf, Iraq
- Medical Laboratory Technique College, The Islamic University of Al Diwaniyah, Al Diwaniyah, Iraq
- Medical Laboratory Technique College, The Islamic University of Babylon, Babylon, Iraq
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2
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Tharp ME, Han CZ, Balak CD, Fitzpatrick C, O'Connor C, Preissl S, Buchanan J, Nott A, Escoubet L, Mavrommatis K, Gupta M, Schwartz MS, Sang UH, Jones PS, Levy ML, Gonda DD, Ben-Haim S, Ciacci J, Barba D, Khalessi A, Coufal NG, Chen CC, Glass CK, Page DC. The inactive X chromosome drives sex differences in microglial inflammatory activity in human glioblastoma. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.06.597433. [PMID: 38895459 PMCID: PMC11185629 DOI: 10.1101/2024.06.06.597433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
Biological sex is an important risk factor in cancer, but the underlying cell types and mechanisms remain obscure. Since tumor development is regulated by the immune system, we hypothesize that sex-biased immune interactions underpin sex differences in cancer. The male-biased glioblastoma multiforme (GBM) is an aggressive and treatment-refractory tumor in urgent need of more innovative approaches, such as considering sex differences, to improve outcomes. GBM arises in the specialized brain immune environment dominated by microglia, so we explored sex differences in this immune cell type. We isolated adult human TAM-MGs (tumor-associated macrophages enriched for microglia) and control microglia and found sex-biased inflammatory signatures in GBM and lower-grade tumors associated with pro-tumorigenic activity in males and anti-tumorigenic activity in females. We demonstrated that genes expressed or modulated by the inactive X chromosome facilitate this bias. Together, our results implicate TAM-MGs, specifically their sex chromosomes, as drivers of male bias in GBM.
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Affiliation(s)
- Marla E Tharp
- Whitehead Institute, Cambridge, MA 02142, USA
- These authors contributed equally
| | - Claudia Z Han
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA 92093, USA
- These authors contributed equally
| | - Chris D Balak
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Conor Fitzpatrick
- Flow Cytometry Core Facility, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Carolyn O'Connor
- Flow Cytometry Core Facility, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Sebastian Preissl
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA 92093, USA
- Center for Epigenomics, University of California, San Diego, La Jolla, CA 92093, USA
- Present address: Institute of Experimental and Clinical Pharmacology and Toxicology, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Justin Buchanan
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA 92093, USA
- Center for Epigenomics, University of California, San Diego, La Jolla, CA 92093, USA
| | - Alexi Nott
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA 92093, USA
- Department of Brain Sciences, Imperial College London, London, United Kingdom
- UK Dementia Research Institute, Imperial College London, London, United Kingdom
| | | | | | - Mihir Gupta
- Department of Neurosurgery, University of California, San Diego, La Jolla, CA 92037, USA
- Present address: Department of Neurosurgery, Yale University, New Haven, CT 06520, USA
| | - Marc S Schwartz
- Department of Neurosurgery, University of California, San Diego, La Jolla, CA 92037, USA
| | - U Hoi Sang
- Department of Neurosurgery, University of California, San Diego, La Jolla, CA 92037, USA
| | - Pamela S Jones
- Department of Neurosurgery, University of California, San Diego, La Jolla, CA 92037, USA
- Present address: Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Michael L Levy
- Department of Neurosurgery, University of California, San Diego-Rady Children's Hospital, San Diego, CA 92123, USA
| | - David D Gonda
- Department of Neurosurgery, University of California, San Diego-Rady Children's Hospital, San Diego, CA 92123, USA
| | - Sharona Ben-Haim
- Department of Neurosurgery, University of California, San Diego, La Jolla, CA 92037, USA
| | - Joseph Ciacci
- Department of Neurosurgery, University of California, San Diego, La Jolla, CA 92037, USA
| | - David Barba
- Department of Neurosurgery, University of California, San Diego, La Jolla, CA 92037, USA
| | - Alexander Khalessi
- Department of Neurosurgery, University of California, San Diego, La Jolla, CA 92037, USA
| | - Nicole G Coufal
- Department of Pediatrics University of California, San Diego, La Jolla, CA 92093, USA
- Sanford Consortium for Regenerative Medicine, La Jolla, CA 92037, USA
| | - Clark C Chen
- Department of Neurosurgery, University of California, San Diego, La Jolla, CA 92037, USA
- Present address: Department of Neurosurgery, University of Minnesota, Minneapolis, MN 55455, USA
| | - Christopher K Glass
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - David C Page
- Whitehead Institute, Cambridge, MA 02142, USA
- Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Howard Hughes Medical Institute, Whitehead Institute, Cambridge, MA 02142, USA
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3
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Lorimer IAJ. Potential roles for efferocytosis in glioblastoma immune evasion. Neurooncol Adv 2024; 6:vdae012. [PMID: 38616895 PMCID: PMC11012614 DOI: 10.1093/noajnl/vdae012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2024] Open
Abstract
Glioblastoma is an aggressive and incurable brain cancer. This cancer establishes both local and systemic immunosuppression that creates a major obstacle to effective immunotherapies. Many studies point to tumor-resident myeloid cells (primarily microglia and macrophages) as key mediators of this immunosuppression. Myeloid cells exhibit a high level of plasticity with respect to their phenotype and are capable of both stimulating and repressing immune responses. How glioblastomas recruit myeloid cells and exploit them to avoid the immune system is an active area of research. Macrophages can acquire an immunosuppressive phenotype as a consequence of exposure to cytokines such as TGFB1 or IL4; in addition, macrophages can acquire an immunosuppressive phenotype as a consequence of the engulfment of apoptotic cells, a process referred to as efferocytosis. There is substantial evidence that glioblastoma cells are able to secrete cytokines and other factors that induce an immunosuppressive phenotype in macrophages and microglia. However, less is known about the contribution of efferocytosis to immunosuppression in glioblastoma. Here I review the literature in this area and discuss the potential of efferocytosis inhibition to improve glioblastoma response to immunotherapy.
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Affiliation(s)
- Ian A J Lorimer
- Cancer Research Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Department of Medicine, University of Ottawa, Ottawa, Ontario, Canada
- Department of Biochemistry, Microbiology, and Immunology, University of Ottawa, Ottawa, Ontario, Canada
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4
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Tao JC, Yu D, Shao W, Zhou DR, Wang Y, Hou SQ, Deng K, Lin N. Interactions between microglia and glioma in tumor microenvironment. Front Oncol 2023; 13:1236268. [PMID: 37700840 PMCID: PMC10493873 DOI: 10.3389/fonc.2023.1236268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 08/14/2023] [Indexed: 09/14/2023] Open
Abstract
Gliomas, the most prevalent primary tumors in the central nervous system, are marked by their immunosuppressive properties and consequent poor patient prognosis. Current evidence emphasizes the pivotal role of the tumor microenvironment in the progression of gliomas, largely attributed to tumor-associated macrophages (brain-resident microglia and bone marrow-derived macrophages) that create a tumor microenvironment conducive to the growth and invasion of tumor cells. Yet, distinguishing between these two cell subgroups remains a challenge. Thus, our review starts by analyzing the heterogeneity between these two cell subsets, then places emphasis on elucidating the complex interactions between microglia and glioma cells. Finally, we conclude with a summary of current attempts at immunotherapy that target microglia. However, given that independent research on microglia is still in its initial stages and has many shortcomings at the present time, we express our related concerns and hope that further research will be carried out to address these issues in the future.
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Affiliation(s)
- Jin-Cheng Tao
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Dong Yu
- Department of Neurosurgery, The Affiliated Chuzhou Hospital of Anhui Medical University, The First People’s Hospital of Chuzhou, Chuzhou, Anhui, China
| | - Wei Shao
- Department of Neurosurgery, The Affiliated Chuzhou Hospital of Anhui Medical University, The First People’s Hospital of Chuzhou, Chuzhou, Anhui, China
| | - Dong-Rui Zhou
- Department of Neurosurgery, The Affiliated Chuzhou Hospital of Anhui Medical University, The First People’s Hospital of Chuzhou, Chuzhou, Anhui, China
| | - Yu Wang
- Department of Neurosurgery, The Affiliated Chuzhou Hospital of Anhui Medical University, The First People’s Hospital of Chuzhou, Chuzhou, Anhui, China
| | - Shi-Qiang Hou
- Department of Neurosurgery, The Affiliated Chuzhou Hospital of Anhui Medical University, The First People’s Hospital of Chuzhou, Chuzhou, Anhui, China
| | - Ke Deng
- Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ning Lin
- Department of Neurosurgery, The Affiliated Chuzhou Hospital of Anhui Medical University, The First People’s Hospital of Chuzhou, Chuzhou, Anhui, China
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5
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Luo H, Zhang H, Mao J, Cao H, Tao Y, Zhao G, Zhang Z, Zhang N, Liu Z, Zhang J, Luo P, Xia Y, Cheng Y, Xie Z, Cheng Q, Liu G. Exosome-based nanoimmunotherapy targeting TAMs, a promising strategy for glioma. Cell Death Dis 2023; 14:235. [PMID: 37012233 PMCID: PMC10070666 DOI: 10.1038/s41419-023-05753-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 03/08/2023] [Accepted: 03/16/2023] [Indexed: 04/05/2023]
Abstract
Exosomes, the cell-derived small extracellular vehicles, play a vital role in intracellular communication by reciprocally transporting DNA, RNA, bioactive protein, chains of glucose, and metabolites. With great potential to be developed as targeted drug carriers, cancer vaccines and noninvasive biomarkers for diagnosis, treatment response evaluation, prognosis prediction, exosomes show extensive advantages of relatively high drug loading capacity, adjustable therapeutic agents release, enhanced permeation and retention effect, striking biodegradability, excellent biocompatibility, low toxicity, etc. With the rapid progression of basic exosome research, exosome-based therapeutics are gaining increasing attention in recent years. Glioma, the standard primary central nervous system (CNS) tumor, is still up against significant challenges as current traditional therapies of surgery resection combined with radiotherapy and chemotherapy and numerous efforts into new drugs showed little clinical curative effect. The emerging immunotherapy strategy presents convincing results in many tumors and is driving researchers to exert its potential in glioma. As the crucial component of the glioma microenvironment, tumor-associated macrophages (TAMs) significantly contribute to the immunosuppressive microenvironment and strongly influence glioma progression via various signaling molecules, simultaneously providing new insight into therapeutic strategies. Exosomes would substantially assist the TAMs-centered treatment as drug delivery vehicles and liquid biopsy biomarkers. Here we review the current potential exosome-mediated immunotherapeutics targeting TAMs in glioma and conclude the recent investigation on the fundamental mechanisms of diversiform molecular signaling events by TAMs that promote glioma progression.
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Affiliation(s)
- Hong Luo
- Department of Neurosurgery, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Hao Zhang
- Department of Neurosurgery, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Jinning Mao
- Health management center, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Hui Cao
- Brain Hospital of Hunan Province, The Second People's Hospital of Hunan Province, Changsha, China
- The School of Clinical Medicine, Hunan University of Chinese Medicine, Changsha, China
| | - Yihao Tao
- Department of Neurosurgery, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Guanjian Zhao
- Department of Neurosurgery, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Zhiwen Zhang
- School of Pharmacy, Fudan University, Shanghai, China
| | - Nan Zhang
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| | - Zaoqu Liu
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou, Zhengzhou, China
| | - Jian Zhang
- Department of Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Peng Luo
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
| | - Yuguo Xia
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
| | - Yuan Cheng
- Department of Neurosurgery, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Zongyi Xie
- Department of Neurosurgery, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Quan Cheng
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China.
| | - Guodong Liu
- Department of Neurosurgery, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China.
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6
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Zhu X, Fang Y, Chen Y, Chen Y, Hong W, Wei W, Tu J. Interaction of tumor-associated microglia/macrophages and cancer stem cells in glioma. Life Sci 2023; 320:121558. [PMID: 36889666 DOI: 10.1016/j.lfs.2023.121558] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 02/28/2023] [Accepted: 03/02/2023] [Indexed: 03/08/2023]
Abstract
Glioma is the most common tumor of the primary central nervous system, and its malignant phenotype has been shown to be closely related to glioma stem cells (GSCs). Although temozolomide has significantly improved the therapeutic outcome of glioma with a high penetration rate of the blood-brain barrier, resistance is often present in patients. Moreover, evidence has shown that the crosstalk between GSCs and tumor-associated microglia/macrophages (TAMs) affect the clinical occurrence, growth, and multi-tolerance of chemoradiotherapy in gliomas. Here, we highlight its vital roles in the maintenance of the stemness of GSCs and the ability of GSCs to recruit TAMs to the tumor microenvironment and promote their polarization into tumor-promoting macrophages, hence providing groundwork for future research into new treatment strategies of cancer.
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Affiliation(s)
- Xiangling Zhu
- Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China
| | - Yilong Fang
- Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China
| | - Yizhao Chen
- Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China
| | - Yu Chen
- Department of Gynecology, Shenzhen Second People's Hospital/The First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China
| | - Wenming Hong
- Department of Neurosurgery, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Wei Wei
- Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China.
| | - Jiajie Tu
- Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China.
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7
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Bai R, Li Y, Jian L, Yang Y, Zhao L, Wei M. The hypoxia-driven crosstalk between tumor and tumor-associated macrophages: mechanisms and clinical treatment strategies. Mol Cancer 2022; 21:177. [PMID: 36071472 PMCID: PMC9454207 DOI: 10.1186/s12943-022-01645-2] [Citation(s) in RCA: 66] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Accepted: 08/25/2022] [Indexed: 02/08/2023] Open
Abstract
Given that hypoxia is a persistent physiological feature of many different solid tumors and a key driver for cancer malignancy, it is thought to be a major target in cancer treatment recently. Tumor-associated macrophages (TAMs) are the most abundant immune cells in the tumor microenvironment (TME), which have a large impact on tumor development and immunotherapy. TAMs massively accumulate within hypoxic tumor regions. TAMs and hypoxia represent a deadly combination because hypoxia has been suggested to induce a pro-tumorigenic macrophage phenotype. Hypoxia not only directly affects macrophage polarization, but it also has an indirect effect by altering the communication between tumor cells and macrophages. For example, hypoxia can influence the expression of chemokines and exosomes, both of which have profound impacts on the recipient cells. Recently, it has been demonstrated that the intricate interaction between cancer cells and TAMs in the hypoxic TME is relevant to poor prognosis and increased tumor malignancy. However, there are no comprehensive literature reviews on the molecular mechanisms underlying the hypoxia-mediated communication between tumor cells and TAMs. Therefore, this review has the aim to collect all recently available data on this topic and provide insights for developing novel therapeutic strategies for reducing the effects of hypoxia.
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Affiliation(s)
- Ruixue Bai
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang, 110122, People's Republic of China.,Liaoning Key Laboratory of Molecular Targeted Anti-Tumor Drug Development and Evaluation, China Medical University, Shenyang, 110122, People's Republic of China.,Department of Pharmacy, Shengjing Hospital of China Medical University, Shenyang, 110004, People's Republic of China
| | - Yunong Li
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang, 110122, People's Republic of China.,Liaoning Key Laboratory of Molecular Targeted Anti-Tumor Drug Development and Evaluation, China Medical University, Shenyang, 110122, People's Republic of China
| | - Lingyan Jian
- Department of Pharmacy, Shengjing Hospital of China Medical University, Shenyang, 110004, People's Republic of China
| | - Yuehui Yang
- Department of Pharmacy, Shengjing Hospital of China Medical University, Shenyang, 110004, People's Republic of China
| | - Lin Zhao
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang, 110122, People's Republic of China. .,Liaoning Key Laboratory of Molecular Targeted Anti-Tumor Drug Development and Evaluation, China Medical University, Shenyang, 110122, People's Republic of China.
| | - Minjie Wei
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang, 110122, People's Republic of China. .,Liaoning Key Laboratory of Molecular Targeted Anti-Tumor Drug Development and Evaluation, China Medical University, Shenyang, 110122, People's Republic of China. .,Shenyang Kangwei Medical Laboratory Analysis Co. LTD, Shenyang, 110000, People's Republic of China.
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8
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Microglia-T cell conversations in brain cancer progression. Trends Mol Med 2022; 28:951-963. [PMID: 36075812 DOI: 10.1016/j.molmed.2022.08.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 08/13/2022] [Accepted: 08/15/2022] [Indexed: 12/26/2022]
Abstract
The highly immunosuppressive and heterogeneous milieu of brain malignancies contributes to their dismal prognosis. Regardless of their cellular origin, brain tumors grow in an environment with various specialized organ-resident cells. Although homeostatic microglia contribute to a healthy brain, conversations between disease-associated microglia and T cells compromise their individual and collective capacity to curb malignant growth. We review the mechanisms of T cell-microglia interactions and discuss how their collaboration fosters heterogeneity and immunosuppression in brain cancers. Because of the importance of microglia and T cells in the brain tumor microenvironment, it is crucial to understand their interactions to derive innovative therapeutics.
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9
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Tang F, Pan Z, Wang Y, Lan T, Wang M, Li F, Quan W, Liu Z, Wang Z, Li Z. Advances in the Immunotherapeutic Potential of Isocitrate Dehydrogenase Mutations in Glioma. Neurosci Bull 2022; 38:1069-1084. [PMID: 35670952 PMCID: PMC9468211 DOI: 10.1007/s12264-022-00866-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 02/16/2022] [Indexed: 11/26/2022] Open
Abstract
Isocitrate dehydrogenase (IDH) is an essential metabolic enzyme in the tricarboxylic acid cycle (TAC). The high mutation frequency of the IDH gene plays a complicated role in gliomas. In addition to affecting gliomas directly, mutations in IDH can also alter their immune microenvironment and can change immune-cell function in direct and indirect ways. IDH mutations mediate immune-cell infiltration and function by modulating immune-checkpoint gene expression and chemokine secretion. In addition, IDH mutation-derived D2-hydroxyglutarate can be absorbed by surrounding immune cells, also affecting their functioning. In this review, we summarize current knowledge about the effects of IDH mutations as well as other gene mutations on the immune microenvironment of gliomas. We also describe recent preclinical and clinical data related to IDH-mutant inhibitors for the treatment of gliomas. Finally, we discuss different types of immunotherapy and the immunotherapeutic potential of IDH mutations in gliomas.
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Affiliation(s)
- Feng Tang
- Brain Glioma Center and Department of Neurosurgery, Wuhan University Zhongnan Hospital, Wuhan, 430071, China
| | - Zhiyong Pan
- Brain Glioma Center and Department of Neurosurgery, Wuhan University Zhongnan Hospital, Wuhan, 430071, China
| | - Yi Wang
- Department of Physiology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, China
| | - Tian Lan
- Brain Glioma Center and Department of Neurosurgery, Wuhan University Zhongnan Hospital, Wuhan, 430071, China
| | - Mengyue Wang
- Department of Physiology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, China
| | - Fengping Li
- Brain Glioma Center and Department of Neurosurgery, Wuhan University Zhongnan Hospital, Wuhan, 430071, China
| | - Wei Quan
- Brain Glioma Center and Department of Neurosurgery, Wuhan University Zhongnan Hospital, Wuhan, 430071, China
| | - Zhenyuan Liu
- Brain Glioma Center and Department of Neurosurgery, Wuhan University Zhongnan Hospital, Wuhan, 430071, China
| | - Zefen Wang
- Department of Physiology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, China.
| | - Zhiqiang Li
- Brain Glioma Center and Department of Neurosurgery, Wuhan University Zhongnan Hospital, Wuhan, 430071, China.
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10
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Cao Y, Zhu H, Chen Q, Huang H, Xie D, Li X, Jiang X, Ren C, Peng J. Integrated analysis of inflammatory response subtype-related signature to predict clinical outcomes, immune status and drug targets in lower-grade glioma. Front Pharmacol 2022; 13:914667. [PMID: 36091778 PMCID: PMC9459010 DOI: 10.3389/fphar.2022.914667] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 07/18/2022] [Indexed: 11/17/2022] Open
Abstract
Background: The inflammatory response in the tumor immune microenvironment has implications for the progression and prognosis in glioma. However, few inflammatory response-related biomarkers for lower-grade glioma (LGG) prognosis and immune infiltration have been identified. We aimed to construct and identify the prognostic value of an inflammatory response-related signature, immune infiltration, and drug targets for LGG. Methods: The transcriptomic and clinical data of LGG samples and 200 inflammatory response genes were obtained from public databases. The LGG samples were separated into two inflammatory response-related subtypes based on differentially expressed inflammatory response genes between LGG and normal brain tissue. Next, inflammatory response-related genes (IRRGs) were determined through a difference analysis between the aforementioned two subtypes. An inflammatory response-related prognostic model was constructed using IRRGs by using univariate Cox regression and Lasso regression analyses and validated in an external database (CGGA database). ssGSEA and ESTIMATE algorithms were conducted to evaluate immune infiltration. Additionally, we performed integrated analyses to investigate the correlation between the prognostic signature and N 6-methyladenosine mRNA status, stemness index, and drug sensitivity. We finally selected MSR1 from the prognostic signature for further experimental validation. Results: A total of nine IRRGs were identified to construct the prognostic signature for LGG. LGG patients in the high-risk group presented significantly reduced overall survival than those in the low-risk group. An ROC analysis confirmed the predictive power of the prognostic model. Multivariate analyses identified the risk score as an independent predictor for the overall survival. ssGSEA revealed that the immune status was definitely disparate between two risk subgroups, and immune checkpoints such as PD-1, PD-L1, and CTLA4 were significantly expressed higher in the high-risk group. The risk score was strongly correlated with tumor stemness and m6A. The expression levels of the genes in the signature were significantly associated with the sensitivity of tumor cells to anti-tumor drugs. Finally, the knockdown of MSR1 suppressed LGG cell migration, invasion, epithelial–mesenchymal transition, and proliferation. Conclusion: The study constructed a novel signature composed of nine IRRGs to predict the prognosis, potential drug targets, and impact immune infiltration status in LGG, which hold promise for screening prognostic biomarkers and guiding immunotherapy for LGG.
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Affiliation(s)
- Yudong Cao
- Department of Neurosurgery, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Hecheng Zhu
- Changsha Kexin Cancer Hospital, Changsha, China
| | - Quan Chen
- Department of Neurosurgery, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Hailong Huang
- Department of Neurosurgery, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Dongcheng Xie
- Department of Neurosurgery, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Xuewen Li
- Changsha Kexin Cancer Hospital, Changsha, China
| | - Xingjun Jiang
- Department of Neurosurgery, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- *Correspondence: Xingjun Jiang, ; Caiping Ren, ; Jiahui Peng,
| | - Caiping Ren
- Key Laboratory for Carcinogenesis of Chinese Ministry of Health, School of Basic Medical Science, Cancer Research Institute, Central South University, Changsha, China
- *Correspondence: Xingjun Jiang, ; Caiping Ren, ; Jiahui Peng,
| | - Jiahui Peng
- Department of Ultrasound, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
- *Correspondence: Xingjun Jiang, ; Caiping Ren, ; Jiahui Peng,
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