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Li L, Zhou J, Han L, Guo C, Ma S, Ge S, Qu Y. Intervention of CXCL5 attenuated neuroinflammation and promoted neurological recovery after traumatic brain injury. Neuroreport 2024; 35:549-557. [PMID: 38739900 DOI: 10.1097/wnr.0000000000002032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Neuroinflammation after traumatic brain injury (TBI) exhibits a strong correlation with neurological impairment, which is a crucial target for improving the prognosis of TBI patients. The involvement of CXCL5/CXCR2 signaling in the regulation of neuroinflammation in brain injury models has been documented. Therefore, the effects of CXCL5 on post-TBI neuroinflammation and its potential mechanisms need to be explored. Following TBI, C57BL/6 mice were administered intraperitoneal injections of a CXCL5 neutralizing antibody (Nab-CXCL5) (5 mg/kg, 2 times/day). Subsequently, the effects on neuroinflammation, nerve injury, and neurological function were assessed. Nab-CXCL5 significantly reduced the release of inflammatory factors, inhibited the formation of inflammatory microglia and astrocytes, and reduced the infiltration of peripheral immune cells in TBI mice. Additionally, this intervention led to a reduction in neuronal impairment and facilitated the restoration of sensorimotor abilities, as well as improvements in learning and memory functions. Peripheral administration of the Nab-CXCL5 to TBI mice could suppress neuroinflammation, reduce neurological damage, and improve neurological function. Our data suggest that neutralizing antibodies against CXCL5 (Nab-CXCL5) may be a promising agent for treating TBI.
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Affiliation(s)
- Leiyang Li
- Department of Neurosurgery, Tangdu Hospital, Xi'an, China
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2
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Hu W, Zhang X, Liu Z, Yang J, Sheng H, Liu Z, Chen C, Shang R, Chen Y, Lu Y, Hu X, Huang Y, Yin W, Cai X, Fan D, Yan L, Hao J, Luo G, He W. Spatiotemporal orchestration of macrophage activation trajectories by Vγ4 T cells during skin wound healing. iScience 2024; 27:109545. [PMID: 38617557 PMCID: PMC11015460 DOI: 10.1016/j.isci.2024.109545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 02/08/2024] [Accepted: 03/18/2024] [Indexed: 04/16/2024] Open
Abstract
Dysregulated macrophage polarization from pro-inflammatory M1 to anti-inflammatory M2 phenotypes underlies impaired cutaneous wound healing. This study reveals Vγ4+ γδ T cells spatiotemporally calibrate macrophage trajectories during skin repair via sophisticated interferon-γ (IFN-γ) conditioning across multiple interconnected tissues. Locally within wound beds, infiltrating Vγ4+ γδ T cells directly potentiate M1 activation and suppress M2 polarization thereby prolonging local inflammation. In draining lymph nodes, infiltrated Vγ4+ γδ T cells expand populations of IFN-γ-competent lymphocytes which disseminate systemically and infiltrate into wound tissues, further enforcing M1 macrophages programming. Moreover, Vγ4+γδ T cells flushed into bone marrow stimulate increased IFN-γ production, which elevates the output of pro-inflammatory Ly6C+monocytes. Mobilization of these monocytes continually replenishes the M1 macrophage pool in wounds, preventing phenotypic conversion to M2 activation. Thus, multi-axis coordination of macrophage activation trajectories by trafficking Vγ4+ γδ T cells provides a sophisticated immunological mechanism regulating inflammation timing and resolution during skin repair.
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Affiliation(s)
- Wengang Hu
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing 400038, China
| | - Xiaorong Zhang
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing 400038, China
| | - Zhongyang Liu
- Department of Plastic Surgery, the First Affiliated Hospital, Zhengzhou University, Henan, China
| | - Jiacai Yang
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing 400038, China
| | - Hao Sheng
- Urology Department, the Second Affiliated Hospital, Third Military Medical University (Army Medical University), Chongqing 400037, China
| | - Zhihui Liu
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing 400038, China
| | - Cheng Chen
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing 400038, China
| | - Ruoyu Shang
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing 400038, China
| | - Yunxia Chen
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing 400038, China
| | - Yifei Lu
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing 400038, China
| | - Xiaohong Hu
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing 400038, China
| | - Yong Huang
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing 400038, China
| | - Wenjing Yin
- Academy of Biological Engineering, Chongqing University, Chongqing, China
| | - Xin Cai
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing 400038, China
| | - Dejiang Fan
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing 400038, China
| | - Lingfeng Yan
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing 400038, China
| | - Jianlei Hao
- Zhuhai Institute of Translational Medicine, Zhuhai People’s Hospital Affiliated with Jinan University, Jinan University, Zhuhai 519000 Guangdong, China
- The Biomedical Translational Research Institute, Faculty of Medical Science, Jinan University, Guangzhou 510632, Guangdong, China
| | - Gaoxing Luo
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing 400038, China
| | - Weifeng He
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing 400038, China
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3
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Wyatt-Johnson SK, Afify R, Brutkiewicz RR. The immune system in neurological diseases: What innate-like T cells have to say. J Allergy Clin Immunol 2024; 153:913-923. [PMID: 38365015 PMCID: PMC10999338 DOI: 10.1016/j.jaci.2024.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 01/26/2024] [Accepted: 02/13/2024] [Indexed: 02/18/2024]
Abstract
The immune system classically consists of 2 lines of defense, innate and adaptive, both of which interact with one another effectively to protect us against any pathogenic threats. Importantly, there is a diverse subset of cells known as innate-like T cells that act as a bridge between the innate and adaptive immune systems and are pivotal players in eliciting inflammatory immune responses. A growing body of evidence has demonstrated the regulatory impact of these innate-like T cells in central nervous system (CNS) diseases and that such immune cells can traffic into the brain in multiple pathological conditions, which can be typically attributed to the breakdown of the blood-brain barrier. However, until now, it has been poorly understood whether innate-like T cells have direct protective or causative properties, particularly in CNS diseases. Therefore, in this review, our attention is focused on discussing the critical roles of 3 unique subsets of unconventional T cells, namely, natural killer T cells, γδ T cells, and mucosal-associated invariant T cells, in the context of CNS diseases, disorders, and injuries and how the interplay of these immune cells modulates CNS pathology, in an attempt to gain a better understanding of their complex functions.
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Affiliation(s)
- Season K Wyatt-Johnson
- Department of Microbiology and Immunology, Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, Ind
| | - Reham Afify
- Department of Microbiology and Immunology, Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, Ind
| | - Randy R Brutkiewicz
- Department of Microbiology and Immunology, Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, Ind.
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4
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Cox LM, Tatematsu BK, Guo L, LeServe DS, Mayrink J, Oliveira MG, Donnelly D, Fonseca RC, Lemos L, Lanser TB, Rosa AC, Lopes JR, Schwerdtfeger LA, Ribeiro GFC, Lobo ELC, Moreira TG, Oliveira AG, Weiner HL, Rezende RM. Gamma-delta T cells suppress microbial metabolites that activate striatal neurons and induce repetitive/compulsive behavior in mice. Brain Behav Immun 2024; 117:242-254. [PMID: 38281671 DOI: 10.1016/j.bbi.2024.01.214] [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: 07/25/2023] [Revised: 12/01/2023] [Accepted: 01/18/2024] [Indexed: 01/30/2024] Open
Abstract
Intestinal γδ T cells play an important role in shaping the gut microbiota, which is critical not only for maintaining intestinal homeostasis but also for controlling brain function and behavior. Here, we found that mice deficient for γδ T cells (γδ-/-) developed an abnormal pattern of repetitive/compulsive (R/C) behavior, which was dependent on the gut microbiota. Colonization of WT mice with γδ-/- microbiota induced R/C behavior whereas colonization of γδ-/- mice with WT microbiota abolished the R/C behavior. Moreover, γδ-/- mice had elevated levels of the microbial metabolite 3-phenylpropanoic acid in their cecum, which is a precursor to hippurate (HIP), a metabolite we found to be elevated in the CSF. HIP reaches the striatum and activates dopamine type 1 (D1R)-expressing neurons, leading to R/C behavior. Altogether, these data suggest that intestinal γδ T cells shape the gut microbiota and their metabolites and prevent dysfunctions of the striatum associated with behavior modulation.
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Affiliation(s)
- Laura M Cox
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Bruna K Tatematsu
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Lydia Guo
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Danielle S LeServe
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Julia Mayrink
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Marilia G Oliveira
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Dustin Donnelly
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Roberta C Fonseca
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Luisa Lemos
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Toby B Lanser
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Ana C Rosa
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Juliana R Lopes
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Luke A Schwerdtfeger
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Gabriela F C Ribeiro
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Eduardo L C Lobo
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Thais G Moreira
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Andre G Oliveira
- Department of Biophysics and Physiology, Biologic Institutes of Sciences, Federal University of Minas Gerais, Brazil
| | - Howard L Weiner
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Rafael M Rezende
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.
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5
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Wu X, Liu H, Hu Q, Wang J, Zhang S, Cui W, Shi Y, Bai H, Zhou J, Han L, Li L, Wu Y, Luo J, Wang T, Guo C, Wang Q, Ge S, Qu Y. Astrocyte-Derived Extracellular Vesicular miR-143-3p Dampens Autophagic Degradation of Endothelial Adhesion Molecules and Promotes Neutrophil Transendothelial Migration after Acute Brain Injury. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2305339. [PMID: 38044319 PMCID: PMC10837358 DOI: 10.1002/advs.202305339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 11/08/2023] [Indexed: 12/05/2023]
Abstract
Pivotal roles of extracellular vesicles (EVs) in the pathogenesis of central nervous system (CNS) disorders including acute brain injury are increasingly acknowledged. Through the analysis of EVs packaged miRNAs in plasma samples from patients with intracerebral hemorrhage (ICH), it is discovered that the level of EVs packaged miR-143-3p (EVs-miR-143-3p) correlates closely with perihematomal edema and neurological outcomes. Further study reveals that, upon ICH, EVs-miR-143-3p is robustly secreted by astrocytes and can shuttle into brain microvascular endothelial cells (BMECs). Heightened levels of miR-143-3p in BMECs induce the up-regulated expression of cell adhesion molecules (CAMs) that bind to circulating neutrophils and facilitate their transendothelial cell migration (TEM) into brain. Mechanism-wise, miR-143-3p directly targets ATP6V1A, resulting in impaired lysosomal hydrolysis ability and reduced autophagic degradation of CAMs. Importantly, a VCAM-1-targeting EVs system to selectively deliver miR-143-3p inhibitor to pathological BMECs is created, which shows satisfactory therapeutic effects in both ICH and traumatic brain injury (TBI) mouse models. In conclusion, the study highlights the causal role of EVs-miR-143-3p in BMECs' dysfunction in acute brain injury and demonstrates a proof of concept that engineered EVs can be devised as a potentially applicable nucleotide drug delivery system for the treatment of CNS disorders.
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Affiliation(s)
- Xun Wu
- Department of NeurosurgeryTangdu Hospitalthe Fourth Military Medical UniversityXi'anShaanxi710038China
| | - Haixiao Liu
- Department of NeurosurgeryTangdu Hospitalthe Fourth Military Medical UniversityXi'anShaanxi710038China
| | - Qing Hu
- Department of NeurosurgeryTangdu Hospitalthe Fourth Military Medical UniversityXi'anShaanxi710038China
| | - Jin Wang
- Department of NeurosurgeryTangdu Hospitalthe Fourth Military Medical UniversityXi'anShaanxi710038China
| | - Shenghao Zhang
- Department of NeurosurgeryTangdu Hospitalthe Fourth Military Medical UniversityXi'anShaanxi710038China
| | - Wenxing Cui
- Department of NeurosurgeryTangdu Hospitalthe Fourth Military Medical UniversityXi'anShaanxi710038China
| | - Yingwu Shi
- Department of NeurosurgeryTangdu Hospitalthe Fourth Military Medical UniversityXi'anShaanxi710038China
| | - Hao Bai
- Department of NeurosurgeryTangdu Hospitalthe Fourth Military Medical UniversityXi'anShaanxi710038China
| | - Jinpeng Zhou
- Department of NeurosurgeryTangdu Hospitalthe Fourth Military Medical UniversityXi'anShaanxi710038China
| | - Liying Han
- Department of NeurosurgeryTangdu Hospitalthe Fourth Military Medical UniversityXi'anShaanxi710038China
| | - Leiyang Li
- Department of NeurosurgeryTangdu Hospitalthe Fourth Military Medical UniversityXi'anShaanxi710038China
| | - Yang Wu
- Department of NeurosurgeryThe Second Hospital of Hebei Medical UniversityShijiazhuangHebei050000China
| | - Jianing Luo
- Department of NeurosurgeryWest Theater General HospitalChengduSichuan610083China
| | - Tinghao Wang
- Department of NeurosurgeryTangdu Hospitalthe Fourth Military Medical UniversityXi'anShaanxi710038China
| | - Chengxuan Guo
- Department of NeurosurgeryTangdu Hospitalthe Fourth Military Medical UniversityXi'anShaanxi710038China
| | - Qiang Wang
- Department of NeurosurgeryTangdu Hospitalthe Fourth Military Medical UniversityXi'anShaanxi710038China
| | - Shunnan Ge
- Department of NeurosurgeryTangdu Hospitalthe Fourth Military Medical UniversityXi'anShaanxi710038China
| | - Yan Qu
- Department of NeurosurgeryTangdu Hospitalthe Fourth Military Medical UniversityXi'anShaanxi710038China
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Abou-El-Hassan H, Bernstock JD, Chalif JI, Yahya T, Rezende RM, Weiner HL, Izzy S. Elucidating the neuroimmunology of traumatic brain injury: methodological approaches to unravel intercellular communication and function. Front Cell Neurosci 2023; 17:1322325. [PMID: 38162004 PMCID: PMC10756680 DOI: 10.3389/fncel.2023.1322325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 11/15/2023] [Indexed: 01/03/2024] Open
Abstract
The neuroimmunology of traumatic brain injury (TBI) has recently gained recognition as a crucial element in the secondary pathophysiological consequences that occur following neurotrauma. Both immune cells residing within the central nervous system (CNS) and those migrating from the periphery play significant roles in the development of secondary brain injury. However, the precise mechanisms governing communication between innate and adaptive immune cells remain incompletely understood, partly due to a limited utilization of relevant experimental models and techniques. Therefore, in this discussion, we outline current methodologies that can aid in the exploration of TBI neuroimmunology, with a particular emphasis on the interactions between resident neuroglial cells and recruited lymphocytes. These techniques encompass adoptive cell transfer, intra-CNS injection(s), selective cellular depletion, genetic manipulation, molecular neuroimaging, as well as in vitro co-culture systems and the utilization of organoid models. By incorporating key elements of both innate and adaptive immunity, these methods facilitate the examination of clinically relevant interactions. In addition to these preclinical approaches, we also detail an emerging avenue of research that seeks to leverage human biofluids. This approach enables the investigation of how resident and infiltrating immune cells modulate neuroglial responses after TBI. Considering the growing significance of neuroinflammation in TBI, the introduction and application of advanced methodologies will be pivotal in advancing translational research in this field.
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Affiliation(s)
- Hadi Abou-El-Hassan
- Ann Romney Center for Neurologic Diseases, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
| | - Joshua D. Bernstock
- Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, United States
| | - Joshua I. Chalif
- Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
| | - Taha Yahya
- Ann Romney Center for Neurologic Diseases, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
| | - Rafael M. Rezende
- Ann Romney Center for Neurologic Diseases, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
| | - Howard L. Weiner
- Ann Romney Center for Neurologic Diseases, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
| | - Saef Izzy
- Ann Romney Center for Neurologic Diseases, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
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7
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Lv M, Zhang Z, Cui Y. Unconventional T cells in brain homeostasis, injury and neurodegeneration. Front Immunol 2023; 14:1273459. [PMID: 37854609 PMCID: PMC10579804 DOI: 10.3389/fimmu.2023.1273459] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 09/20/2023] [Indexed: 10/20/2023] Open
Abstract
The interaction between peripheral immune cells and the brain is an important component of the neuroimmune axis. Unconventional T cells, which include natural killer T (NKT) cells, mucosal-associated invariant T (MAIT) cells, γδ T cells, and other poorly defined subsets, are a special group of T lymphocytes that recognize a wide range of nonpolymorphic ligands and are the connection between adaptive and innate immunity. Recently, an increasing number of complex functions of these unconventional T cells in brain homeostasis and various brain disorders have been revealed. In this review, we describe the classification and effector function of unconventional T cells, review the evidence for the involvement of unconventional T cells in the regulation of brain homeostasis, summarize the roles and mechanisms of unconventional T cells in the regulation of brain injury and neurodegeneration, and discuss immunotherapeutic potential as well as future research goals. Insight of these processes can shed light on the regulation of T cell immunity on brain homeostasis and diseases and provide new clues for therapeutic approaches targeting brain injury and neurodegeneration.
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Affiliation(s)
- Mengfei Lv
- Institute of Neuroregeneration and Neurorehabilitation, Qingdao University, Qingdao, Shandong, China
- Qingdao Medical College, Qingdao University, Qingdao, China
| | - Zhaolong Zhang
- Department of Interventional Radiology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Yu Cui
- Institute of Neuroregeneration and Neurorehabilitation, Qingdao University, Qingdao, Shandong, China
- Qingdao Medical College, Qingdao University, Qingdao, China
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8
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Lopes JR, Zhang X, Mayrink J, Tatematsu BK, Guo L, LeServe DS, Abou-El-Hassan H, Rong F, Dalton MJ, Oliveira MG, Lanser TB, Liu L, Butovsky O, Rezende RM, Weiner HL. Nasal administration of anti-CD3 monoclonal antibody ameliorates disease in a mouse model of Alzheimer's disease. Proc Natl Acad Sci U S A 2023; 120:e2309221120. [PMID: 37669383 PMCID: PMC10500187 DOI: 10.1073/pnas.2309221120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Accepted: 07/31/2023] [Indexed: 09/07/2023] Open
Abstract
Emerging evidence suggests that dysregulation of neuroinflammation, particularly that orchestrated by microglia, plays a significant role in the pathogenesis of Alzheimer's disease (AD). Danger signals including dead neurons, dystrophic axons, phosphorylated tau, and amyloid plaques alter the functional phenotype of microglia from a homeostatic (M0) to a neurodegenerative or disease-associated phenotype, which in turn drives neuroinflammation and promotes disease. Thus, therapies that target microglia activation constitute a unique approach for treating AD. Here, we report that nasally administered anti-CD3 monoclonal antibody in the 3xTg AD mouse model reduced microglial activation and improved cognition independent of amyloid beta deposition. In addition, gene expression analysis demonstrated decreased oxidative stress, increased axogenesis and synaptic organization, and metabolic changes in the hippocampus and cortex of nasal anti-CD3 treated animals. The beneficial effect of nasal anti-CD3 was associated with the accumulation of T cells in the brain where they were in close contact with microglial cells. Taken together, our findings identify nasal anti-CD3 as a unique form of immunotherapy to treat Alzheimer's disease independent of amyloid beta targeting.
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Affiliation(s)
- Juliana R. Lopes
- Ann Romney Center for Neurologic Diseases, Department of Neurology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA02115
| | - Xiaoming Zhang
- Ann Romney Center for Neurologic Diseases, Department of Neurology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA02115
| | - Julia Mayrink
- Ann Romney Center for Neurologic Diseases, Department of Neurology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA02115
| | - Bruna K. Tatematsu
- Ann Romney Center for Neurologic Diseases, Department of Neurology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA02115
| | - Lydia Guo
- Ann Romney Center for Neurologic Diseases, Department of Neurology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA02115
| | - Danielle S. LeServe
- Ann Romney Center for Neurologic Diseases, Department of Neurology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA02115
| | - Hadi Abou-El-Hassan
- Ann Romney Center for Neurologic Diseases, Department of Neurology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA02115
| | - Felipe Rong
- Ann Romney Center for Neurologic Diseases, Department of Neurology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA02115
| | - Maria J. Dalton
- Ann Romney Center for Neurologic Diseases, Department of Neurology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA02115
| | - Marilia G. Oliveira
- Ann Romney Center for Neurologic Diseases, Department of Neurology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA02115
| | - Toby B. Lanser
- Ann Romney Center for Neurologic Diseases, Department of Neurology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA02115
| | - Lei Liu
- Ann Romney Center for Neurologic Diseases, Department of Neurology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA02115
| | - Oleg Butovsky
- Ann Romney Center for Neurologic Diseases, Department of Neurology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA02115
| | - Rafael M. Rezende
- Ann Romney Center for Neurologic Diseases, Department of Neurology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA02115
| | - Howard L. Weiner
- Ann Romney Center for Neurologic Diseases, Department of Neurology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA02115
- The Gene Lay Institute of Immunology and Inflammation, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA02115
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