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Feng Y, Hu X, Zhang Y, Wang Y. The Role of Microglia in Brain Metastases: Mechanisms and Strategies. Aging Dis 2024; 15:169-185. [PMID: 37307835 PMCID: PMC10796095 DOI: 10.14336/ad.2023.0514] [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: 12/29/2022] [Accepted: 05/14/2023] [Indexed: 06/14/2023] Open
Abstract
Brain metastases and related complications are one of the major fatal factors in cancer. Patients with breast cancer, lung cancer, and melanoma are at a high risk of developing brain metastases. However, the mechanisms underlying the brain metastatic cascade remain poorly understood. Microglia, one of the major resident macrophages in the brain parenchyma, are involved in multiple processes associated with brain metastasis, including inflammation, angiogenesis, and immune modulation. They also closely interact with metastatic cancer cells, astrocytes, and other immune cells. Current therapeutic approaches against metastatic brain cancers, including small-molecule drugs, antibody-coupled drugs (ADCs), and immune-checkpoint inhibitors (ICIs), have compromised efficacy owing to the impermeability of the blood-brain barrier (BBB) and complex brain microenvironment. Targeting microglia is one of the strategies for treating metastatic brain cancer. In this review, we summarize the multifaceted roles of microglia in brain metastases and highlight them as potential targets for future therapeutic interventions.
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Affiliation(s)
- Ying Feng
- Department of Medical Oncology, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
- Academy of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xueqing Hu
- Department of Medical Oncology, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yingru Zhang
- Department of Medical Oncology, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yan Wang
- Department of Medical Oncology, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
- Academy of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
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Yang X, Zeng X, Shu J, Bao H, Liu X. MiR-155 enhances phagocytosis of alveolar macrophages through the mTORC2/RhoA pathway. Medicine (Baltimore) 2023; 102:e34592. [PMID: 37657048 PMCID: PMC10476751 DOI: 10.1097/md.0000000000034592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 07/13/2023] [Indexed: 09/03/2023] Open
Abstract
Alveolar macrophage phagocytosis is significantly reduced in Chronic obstructive pulmonary disease, and cigarette smoke extract is one of the chief reasons for this decrease. Nevertheless, the specific underlying mechanism remains elusive. In this study, the role and possible mechanism of miR-155-5p/mTORC2/RhoA in the phagocytosis of mouse alveolar macrophages (MH-S) were explored. Our results revealed that cigarette smoke extract intervention reduced MH-S cell phagocytosis and miR-155-5p expression. Meanwhile, the dual-luciferase reporter assay validated that Rictor is a target of miR-155-5p. On the one hand, transfecting miR-155-5p mimic, mimic NC, miR-155-5p inhibitor, or inhibitor NC in MH-S cells overexpressing miR-155-5p increased the Alveolar macrophage phagocytotic rate, up-regulated the expression level of RhoA and p-RhoA, and down-regulated that of mTOR and Rictor mRNA and protein. On the other hand, inhibiting the expression of miR-155-5p lowered the phagocytotic rate, up-regulated the expression of mTOR, Rictor mRNA, and protein, and down-regulated the expression of RhoA and p-RhoA, which taken together, authenticated that miR-155-5p participates in macrophage phagocytosis via the mTORC2/RhoA pathway. Finally, confocal microscopy demonstrated that cells overexpressing miR-155-5p underwent cytoskeletal rearrangement during phagocytosis, and the phagocytic function of cells was enhanced, signaling that miR-155-5p participated in macrophage skeletal rearrangement and enhanced alveolar macrophage phagocytosis by targeting the expression of Rictor in the mTORC2/RhoA pathway.
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Affiliation(s)
- Xinna Yang
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, China
- Department of Gerontal Respiratory Medicine, The First Hospital of Lanzhou University, Lanzhou, China
| | - Xiaoli Zeng
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, China
- Department of Gerontal Respiratory Medicine, The First Hospital of Lanzhou University, Lanzhou, China
| | - Juan Shu
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, China
- Department of Gerontal Respiratory Medicine, The First Hospital of Lanzhou University, Lanzhou, China
| | - Hairong Bao
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, China
- Department of Gerontal Respiratory Medicine, The First Hospital of Lanzhou University, Lanzhou, China
| | - Xiaoju Liu
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, China
- Department of Gerontal Respiratory Medicine, The First Hospital of Lanzhou University, Lanzhou, China
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Zhang J, Huang D, Lan X, Deng D, Li J, Zhang D, Li Y, Zhong T, Peng S. Application of small extracellular vesicles in the diagnosis and prognosis of nasopharyngeal carcinoma. Front Cell Dev Biol 2023; 11:1100941. [PMID: 36968209 PMCID: PMC10036369 DOI: 10.3389/fcell.2023.1100941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 03/02/2023] [Indexed: 03/12/2023] Open
Abstract
Nasopharyngeal carcinoma (NPC) is a malignant tumor originating from the epithelium of the nasopharynx. The disease is insidious, and most patients are diagnosed at the advanced stage, resulting in poor prognosis. Early diagnosis is important to reduce NPC mortality. Small extracellular vesicles (sEVs) are rich in a variety of bioactive molecules, such as proteins, nucleic acids, and lipids, which can participate in the physiological and pathological regulation of the body by affecting the function of target cells. Numerous studies have shown that some RNAs and proteins in sEVs of tumor origin have a key role in the development of NPC and are potential candidates for malignancy detection. Studying the relationship between the cargoes of these sEVs and NPC may help in the diagnosis of the disease. Here in this review, we summarize the application of sEVs as biomarkers in the diagnosis of NPC and their role in NPC metastasis and prognosis. In addition, we discuss possible future applications and limitations of sEVs as biomarkers.
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Affiliation(s)
- Jiali Zhang
- The First School of Clinical Medicine, Gannan Medical University, Ganzhou, China
- Department of Otolaryngology, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Defa Huang
- The First School of Clinical Medicine, Gannan Medical University, Ganzhou, China
- Laboratory Medicine, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Xianbin Lan
- The First School of Clinical Medicine, Gannan Medical University, Ganzhou, China
- Department of Otolaryngology, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Dongming Deng
- The First School of Clinical Medicine, Gannan Medical University, Ganzhou, China
- Department of Otolaryngology, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Jijing Li
- The First School of Clinical Medicine, Gannan Medical University, Ganzhou, China
- Department of Otolaryngology, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Dongzhi Zhang
- The First School of Clinical Medicine, Gannan Medical University, Ganzhou, China
- Department of Otolaryngology, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Yue Li
- The First School of Clinical Medicine, Gannan Medical University, Ganzhou, China
- Department of Otolaryngology, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Tianyu Zhong
- The First School of Clinical Medicine, Gannan Medical University, Ganzhou, China
- Laboratory Medicine, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
- Precision Medicine Center, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
- *Correspondence: Tianyu Zhong, ; Shaoping Peng,
| | - Shaoping Peng
- The First School of Clinical Medicine, Gannan Medical University, Ganzhou, China
- Department of Otolaryngology, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
- *Correspondence: Tianyu Zhong, ; Shaoping Peng,
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Marin J, Journe F, Ghanem GE, Awada A, Kindt N. Cytokine Landscape in Central Nervous System Metastases. Biomedicines 2022; 10:biomedicines10071537. [PMID: 35884845 PMCID: PMC9313120 DOI: 10.3390/biomedicines10071537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 06/20/2022] [Accepted: 06/25/2022] [Indexed: 11/16/2022] Open
Abstract
The central nervous system is the location of metastases in more than 40% of patients with lung cancer, breast cancer and melanoma. These metastases are associated with one of the poorest prognoses in advanced cancer patients, mainly due to the lack of effective treatments. In this review, we explore the involvement of cytokines, including interleukins and chemokines, during the development of brain and leptomeningeal metastases from the epithelial-to-mesenchymal cell transition and blood–brain barrier extravasation to the interaction between cancer cells and cells from the brain microenvironment, including astrocytes and microglia. Furthermore, the role of the gut–brain axis on cytokine release during this process will also be addressed.
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Affiliation(s)
- Julie Marin
- Laboratory of Clinical and Experimental Oncology (LOCE), Institut Jules Bordet, Université Libre de Bruxelles (ULB), 1070 Brussels, Belgium; (J.M.); (F.J.); (G.E.G.); (A.A.)
| | - Fabrice Journe
- Laboratory of Clinical and Experimental Oncology (LOCE), Institut Jules Bordet, Université Libre de Bruxelles (ULB), 1070 Brussels, Belgium; (J.M.); (F.J.); (G.E.G.); (A.A.)
- Laboratory of Human Anatomy and Experimental Oncology, Institut Santé, Université de Mons (UMons), 7000 Mons, Belgium
| | - Ghanem E. Ghanem
- Laboratory of Clinical and Experimental Oncology (LOCE), Institut Jules Bordet, Université Libre de Bruxelles (ULB), 1070 Brussels, Belgium; (J.M.); (F.J.); (G.E.G.); (A.A.)
| | - Ahmad Awada
- Laboratory of Clinical and Experimental Oncology (LOCE), Institut Jules Bordet, Université Libre de Bruxelles (ULB), 1070 Brussels, Belgium; (J.M.); (F.J.); (G.E.G.); (A.A.)
- Department of Medical Oncology, Institut Jules Bordet, Université Libre de Bruxelles (ULB), 1070 Brussels, Belgium
| | - Nadège Kindt
- Laboratory of Clinical and Experimental Oncology (LOCE), Institut Jules Bordet, Université Libre de Bruxelles (ULB), 1070 Brussels, Belgium; (J.M.); (F.J.); (G.E.G.); (A.A.)
- Correspondence:
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Shan Y, Zhou P, Zhou Q, Yang L. Extracellular Vesicles in the Progression and Therapeutic Resistance of Nasopharyngeal Carcinoma. Cancers (Basel) 2022; 14:2289. [PMID: 35565418 PMCID: PMC9101631 DOI: 10.3390/cancers14092289] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 04/30/2022] [Accepted: 05/02/2022] [Indexed: 02/07/2023] Open
Abstract
Nasopharyngeal carcinoma (NPC) is an epithelial malignancy largely associated with Epstein-Barr virus (EBV) infection, which is frequently reported in east and southeast Asia. Extracellular vesicles (EVs) originate from the endosome or plasma membrane, which plays a critical role in tumor pathogenesis for their character of cell-cell communication and its cargos, including proteins, RNA, and other molecules that can target recipient cells and affect their progression. To date, numerous studies have indicated that EVs have crucial significance in the progression, metastasis, and therapeutic resistance of NPC. In this review, we not only summarize the interaction of NPC cells and the tumor microenvironment (TME) through EVs, but also explain the role of EVs in radiation and drug resistance of NPC, which poses a severe threat to cancer therapy. Therefore, EVs may show great potential as biomarkers in the early diagnosis of interfered targets of NPC therapy.
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Affiliation(s)
- Yunhan Shan
- Department of Oncology, Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410078, China; (Y.S.); (P.Z.); (Q.Z.)
- Cancer Research Institute, School of Basic Medicine Science, Central South University, Changsha 410078, China
- Xiangya School of Medicine, Central South University, Changsha 410013, China
| | - Peijun Zhou
- Department of Oncology, Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410078, China; (Y.S.); (P.Z.); (Q.Z.)
- Cancer Research Institute, School of Basic Medicine Science, Central South University, Changsha 410078, China
| | - Qin Zhou
- Department of Oncology, Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410078, China; (Y.S.); (P.Z.); (Q.Z.)
| | - Lifang Yang
- Department of Oncology, Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410078, China; (Y.S.); (P.Z.); (Q.Z.)
- Cancer Research Institute, School of Basic Medicine Science, Central South University, Changsha 410078, China
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