Journal of immunology最新文献

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BHLHE40 Regulates Myeloid Cell Polarization through IL-10-Dependent and -Independent Mechanisms. BHLHE40 通过 IL-10 依赖性和独立性机制调控髓系细胞极化
IF 4.4 3区 医学
Journal of immunology Pub Date : 2024-06-01 DOI: 10.4049/jimmunol.2200819
Skyler V Hendrix, Yassin Mreyoud, Michael E McNehlan, Asya Smirnov, Sthefany M Chavez, Brian Hie, Megan M Chamberland, Tara R Bradstreet, Ashlee M Webber, Darren Kreamalmeyer, Reshma Taneja, Bryan D Bryson, Brian T Edelson, Christina L Stallings
{"title":"BHLHE40 Regulates Myeloid Cell Polarization through IL-10-Dependent and -Independent Mechanisms.","authors":"Skyler V Hendrix, Yassin Mreyoud, Michael E McNehlan, Asya Smirnov, Sthefany M Chavez, Brian Hie, Megan M Chamberland, Tara R Bradstreet, Ashlee M Webber, Darren Kreamalmeyer, Reshma Taneja, Bryan D Bryson, Brian T Edelson, Christina L Stallings","doi":"10.4049/jimmunol.2200819","DOIUrl":"10.4049/jimmunol.2200819","url":null,"abstract":"<p><p>Better understanding of the host responses to Mycobacterium tuberculosis infections is required to prevent tuberculosis and develop new therapeutic interventions. The host transcription factor BHLHE40 is essential for controlling M. tuberculosis infection, in part by repressing Il10 expression, where excess IL-10 contributes to the early susceptibility of Bhlhe40-/- mice to M. tuberculosis infection. Deletion of Bhlhe40 in lung macrophages and dendritic cells is sufficient to increase the susceptibility of mice to M. tuberculosis infection, but how BHLHE40 impacts macrophage and dendritic cell responses to M. tuberculosis is unknown. In this study, we report that BHLHE40 is required in myeloid cells exposed to GM-CSF, an abundant cytokine in the lung, to promote the expression of genes associated with a proinflammatory state and better control of M. tuberculosis infection. Loss of Bhlhe40 expression in murine bone marrow-derived myeloid cells cultured in the presence of GM-CSF results in lower levels of proinflammatory associated signaling molecules IL-1β, IL-6, IL-12, TNF-α, inducible NO synthase, IL-2, KC, and RANTES, as well as higher levels of the anti-inflammatory-associated molecules MCP-1 and IL-10 following exposure to heat-killed M. tuberculosis. Deletion of Il10 in Bhlhe40-/- myeloid cells restored some, but not all, proinflammatory signals, demonstrating that BHLHE40 promotes proinflammatory responses via both IL-10-dependent and -independent mechanisms. In addition, we show that macrophages and neutrophils within the lungs of M. tuberculosis-infected Bhlhe40-/- mice exhibit defects in inducible NO synthase production compared with infected wild-type mice, supporting that BHLHE40 promotes proinflammatory responses in innate immune cells, which may contribute to the essential role for BHLHE40 during M. tuberculosis infection in vivo.</p>","PeriodicalId":16045,"journal":{"name":"Journal of immunology","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11105981/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140863717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cutting Edge: First Lung Infection Permanently Enlarges Lymph Nodes and Enhances New T Cell Responses. 前沿:首次肺部感染可永久性增大淋巴结并增强新的 T 细胞反应。
IF 3.6 3区 医学
Journal of immunology Pub Date : 2024-06-01 DOI: 10.4049/jimmunol.2400010
J Michael Stolley, Milcah C Scott, Stephen D O'Flanagan, Marco Künzli, Courtney A Matson, Eyob Weyu, Ryan A Langlois, Vaiva Vezys, David Masopust
{"title":"Cutting Edge: First Lung Infection Permanently Enlarges Lymph Nodes and Enhances New T Cell Responses.","authors":"J Michael Stolley, Milcah C Scott, Stephen D O'Flanagan, Marco Künzli, Courtney A Matson, Eyob Weyu, Ryan A Langlois, Vaiva Vezys, David Masopust","doi":"10.4049/jimmunol.2400010","DOIUrl":"10.4049/jimmunol.2400010","url":null,"abstract":"<p><p>Humans experience frequent respiratory infections. Immunology and vaccinology studies in mice are typically performed in naive specific pathogen-free animals responding to their very first respiratory challenge. We found that the first respiratory infection induces lifelong enlargement of the lung-draining mediastinal lymph nodes (medLNs). Furthermore, infection-experienced medLNs supported better naive T cell surveillance and effector responses to new unrelated infections that exhibited more biased accumulation and memory establishment within the lung. Moreover, we observed that weight loss induced by influenza infection was substantially reduced in mice that had recovered from a previous unrelated respiratory viral challenge. These data show that the lack of infectious history and corresponding medLN hypoplasia in specific pathogen-free mice alter their immune response to lung infections. Preclinical vaccination and immunology studies should consider the previous infectious experience of the model organism.</p>","PeriodicalId":16045,"journal":{"name":"Journal of immunology","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11250951/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140864963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Persistence of a Skewed Repertoire of NK Cells in People with HIV-1 on Long-Term Antiretroviral Therapy. 长期接受抗逆转录病毒疗法的 HIV-1 感染者体内 NK 细胞的偏态汇集持续存在。
IF 3.6 3区 医学
Journal of immunology Pub Date : 2024-05-15 DOI: 10.4049/jimmunol.2300672
Renee R Anderko, Allison E DePuyt, Rhianna Bronson, Arlene C Bullotta, Evgenia Aga, Ronald J Bosch, R Brad Jones, Joseph J Eron, John W Mellors, Rajesh T Gandhi, Deborah K McMahon, Bernard J Macatangay, Charles R Rinaldo, Robbie B Mailliard
{"title":"Persistence of a Skewed Repertoire of NK Cells in People with HIV-1 on Long-Term Antiretroviral Therapy.","authors":"Renee R Anderko, Allison E DePuyt, Rhianna Bronson, Arlene C Bullotta, Evgenia Aga, Ronald J Bosch, R Brad Jones, Joseph J Eron, John W Mellors, Rajesh T Gandhi, Deborah K McMahon, Bernard J Macatangay, Charles R Rinaldo, Robbie B Mailliard","doi":"10.4049/jimmunol.2300672","DOIUrl":"10.4049/jimmunol.2300672","url":null,"abstract":"<p><p>HIV-1 infection greatly alters the NK cell phenotypic and functional repertoire. This is highlighted by the expansion of a rare population of FcRγ- NK cells exhibiting characteristics of traditional immunologic memory in people with HIV (PWH). Although current antiretroviral therapy (ART) effectively controls HIV-1 viremia and disease progression, its impact on HIV-1-associated NK cell abnormalities remains unclear. To address this, we performed a longitudinal analysis detailing conventional and memory-like NK cell characteristics in n = 60 PWH during the first 4 y of ART. Throughout this regimen, a skewed repertoire of cytokine unresponsive FcRγ- memory-like NK cells persisted and accompanied an overall increase in NK surface expression of CD57 and KLRG1, suggestive of progression toward immune senescence. These traits were linked to elevated serum inflammatory biomarkers and increasing Ab titers to human CMV, with human CMV viremia detected in approximately one-third of PWH at years 1-4 of ART. Interestingly, 40% of PWH displayed atypical NK cell subsets, representing intermediate stages of NK-poiesis based on single-cell multiomic trajectory analysis. Our findings indicate that NK cell irregularities persist in PWH despite long-term ART, underscoring the need to better understand the causative mechanisms that prevent full restoration of immune health in PWH.</p>","PeriodicalId":16045,"journal":{"name":"Journal of immunology","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11073922/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140318472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Antagonism of the Platelet-Activating Factor Pathway Mitigates Inflammatory Adverse Events Driven by Anti-erythrocyte Antibody Therapy in Mice. 拮抗血小板活化因子途径可减轻小鼠抗红细胞抗体疗法引发的炎症不良反应
IF 4.4 3区 医学
Journal of immunology Pub Date : 2024-05-15 DOI: 10.4049/jimmunol.2300638
Kevin Doyoon Won, Lazaro Gil Gonzalez, Yoelys Cruz-Leal, Alequis Pavon Oro, Alan H Lazarus
{"title":"Antagonism of the Platelet-Activating Factor Pathway Mitigates Inflammatory Adverse Events Driven by Anti-erythrocyte Antibody Therapy in Mice.","authors":"Kevin Doyoon Won, Lazaro Gil Gonzalez, Yoelys Cruz-Leal, Alequis Pavon Oro, Alan H Lazarus","doi":"10.4049/jimmunol.2300638","DOIUrl":"10.4049/jimmunol.2300638","url":null,"abstract":"<p><p>Immune thrombocytopenia (ITP) is an autoimmune disease characterized by low platelet counts primarily due to antiplatelet autoantibodies. Anti-D is a donor-derived polyclonal Ab against the rhesus D Ag on erythrocytes used to treat ITP. Unfortunately, adverse inflammatory/hypersensitivity reactions and a Food and Drug Administration-issued black box warning have limited its clinical use. This underscores the imperative to understand the inflammatory pathway associated with anti-erythrocyte Ab-based therapies. TER119 is an erythrocyte-specific Ab with anti-D-like therapeutic activity in murine ITP, while also exhibiting a distinct inflammatory signature involving production of CCL2, CCL5, and CXCL9 but not IFN-γ. Therefore, TER119 has been used to elucidate the potential mechanism underlying the adverse inflammatory activity associated with anti-erythrocyte Ab therapy in murine ITP. Prior work has demonstrated that TER119 administration is associated with a dramatic decrease in body temperature and inflammatory cytokine/chemokine production. The work presented in the current study demonstrates that inhibiting the highly inflammatory platelet-activating factor (PAF) pathway with PAF receptor antagonists prevents TER119-driven changes in body temperature and inhibits the production of the CCL2, CCL5, and CXCL9 inflammatory cytokines in CD-1 mice. Phagocytic cells and a functional TER119 Fc region were found to be necessary for TER119-induced body temperature changes and increases in CXCL9 and CCL2. Taken together, this work reveals the novel requirement of the PAF pathway in causing adverse inflammatory activity associated with anti-erythrocyte Ab therapy in a murine model and provides a strategy of mitigating these potential reactions without altering therapeutic activity.</p>","PeriodicalId":16045,"journal":{"name":"Journal of immunology","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140175064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Inferring B Cell Phylogenies from Paired H and L Chain BCR Sequences with Dowser. 用 Dowser 从成对的 H 链和 L 链 BCR 序列推断 B 细胞系统发育。
IF 4.4 3区 医学
Journal of immunology Pub Date : 2024-05-15 DOI: 10.4049/jimmunol.2300851
Cole G Jensen, Jacob A Sumner, Steven H Kleinstein, Kenneth B Hoehn
{"title":"Inferring B Cell Phylogenies from Paired H and L Chain BCR Sequences with Dowser.","authors":"Cole G Jensen, Jacob A Sumner, Steven H Kleinstein, Kenneth B Hoehn","doi":"10.4049/jimmunol.2300851","DOIUrl":"10.4049/jimmunol.2300851","url":null,"abstract":"<p><p>Abs are vital to human immune responses and are composed of genetically variable H and L chains. These structures are initially expressed as BCRs. BCR diversity is shaped through somatic hypermutation and selection during immune responses. This evolutionary process produces B cell clones, cells that descend from a common ancestor but differ by mutations. Phylogenetic trees inferred from BCR sequences can reconstruct the history of mutations within a clone. Until recently, BCR sequencing technologies separated H and L chains, but advancements in single-cell sequencing now pair H and L chains from individual cells. However, it is unclear how these separate genes should be combined to infer B cell phylogenies. In this study, we investigated strategies for using paired H and L chain sequences to build phylogenetic trees. We found that incorporating L chains significantly improved tree accuracy and reproducibility across all methods tested. This improvement was greater than the difference between tree-building methods and persisted even when mixing bulk and single-cell sequencing data. However, we also found that many phylogenetic methods estimated significantly biased branch lengths when some L chains were missing, such as when mixing single-cell and bulk BCR data. This bias was eliminated using maximum likelihood methods with separate branch lengths for H and L chain gene partitions. Thus, we recommend using maximum likelihood methods with separate H and L chain partitions, especially when mixing data types. We implemented these methods in the R package Dowser: https://dowser.readthedocs.io.</p>","PeriodicalId":16045,"journal":{"name":"Journal of immunology","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11073909/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140335902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
S100A9: The Unusual Suspect Connecting Viral Infection and Inflammation. S100A9:连接病毒感染和炎症的非同寻常的嫌疑人
IF 4.4 3区 医学
Journal of immunology Pub Date : 2024-05-15 DOI: 10.4049/jimmunol.2300640
Julien Boucher, Caroline Gilbert, Santanu Bose, Philippe A Tessier
{"title":"S100A9: The Unusual Suspect Connecting Viral Infection and Inflammation.","authors":"Julien Boucher, Caroline Gilbert, Santanu Bose, Philippe A Tessier","doi":"10.4049/jimmunol.2300640","DOIUrl":"10.4049/jimmunol.2300640","url":null,"abstract":"<p><p>The study of S100A9 in viral infections has seen increased interest since the COVID-19 pandemic. S100A8/A9 levels were found to be correlated with the severity of COVID-19 disease, cytokine storm, and changes in myeloid cell subsets. These data led to the hypothesis that S100A8/A9 proteins might play an active role in COVID-19 pathogenesis. This review explores the structures and functions of S100A8/9 and the current knowledge on the involvement of S100A8/A9 and its constituents in viral infections. The potential roles of S100A9 in SARS-CoV-2 infections are also discussed.</p>","PeriodicalId":16045,"journal":{"name":"Journal of immunology","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11076006/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140864965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Potent HPIV3-neutralizing IGHV5-51 Antibodies Identified from Multiple Individuals Show L Chain and CDRH3 Promiscuity. 从多个个体中鉴定出的强效 HPIV3 中和 IGHV5-51 抗体显示出 L 链和 CDRH3 的杂合性。
IF 4.4 3区 医学
Journal of immunology Pub Date : 2024-05-01 DOI: 10.4049/jimmunol.2300880
Alexandra A Abu-Shmais, Rose J Miller, Alexis K Janke, Rachael M Wolters, Clinton M Holt, Nagarajan Raju, Robert H Carnahan, James E Crowe, Jarrod J Mousa, Ivelin S Georgiev
{"title":"Potent HPIV3-neutralizing IGHV5-51 Antibodies Identified from Multiple Individuals Show L Chain and CDRH3 Promiscuity.","authors":"Alexandra A Abu-Shmais, Rose J Miller, Alexis K Janke, Rachael M Wolters, Clinton M Holt, Nagarajan Raju, Robert H Carnahan, James E Crowe, Jarrod J Mousa, Ivelin S Georgiev","doi":"10.4049/jimmunol.2300880","DOIUrl":"10.4049/jimmunol.2300880","url":null,"abstract":"<p><p>Human parainfluenza virus 3 (HPIV3) is a widespread pathogen causing severe and lethal respiratory illness in at-risk populations. Effective countermeasures are in various stages of development; however, licensed therapeutic and prophylactic options are not available. The fusion glycoprotein (HPIV3 F), responsible for facilitating viral entry into host cells, is a major target of neutralizing Abs that inhibit infection. Although several neutralizing Abs against a small number of HPIV3 F epitopes have been identified to date, relatively little is known about the Ab response to HPIV3 compared with other pathogens, such as influenza virus and SARS-CoV-2. In this study, we aimed to characterize a set of HPIV3-specific Abs identified in multiple individuals for genetic signatures, epitope specificity, neutralization potential, and publicness. We identified 12 potently neutralizing Abs targeting three nonoverlapping epitopes on HPIV3 F. Among these, six Abs identified from two different individuals used Ig heavy variable gene IGHV 5-51, with five of the six Abs targeting the same epitope. However, despite the use of the same H chain variable (VH) gene, these Abs used multiple different L chain variable genes (VL) and diverse H chain CDR 3 (CDRH3) sequences. Together, these results provide further information about the genetic and functional characteristics of HPIV3-neutralizing Abs and suggest the existence of a reproducible VH-dependent Ab response associated with VL and CDRH3 promiscuity. Understanding sites of HPIV3 F vulnerability and the genetic and molecular characteristics of Abs targeting these sites will help guide efforts for effective vaccine and therapeutic development.</p>","PeriodicalId":16045,"journal":{"name":"Journal of immunology","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11018509/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140131722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Dysregulated IL-23/TH17 Axis in Endometriosis Pathophysiology. 子宫内膜异位症病理生理学中失调的 IL-23/TH17 轴。
IF 4.4 3区 医学
Journal of immunology Pub Date : 2024-05-01 DOI: 10.4049/jimmunol.2400018
Danielle J Sisnett, Katherine B Zutautas, Jessica E Miller, Harshavardhan Lingegowda, Soo Hyun Ahn, Alison McCallion, Olga Bougie, Bruce A Lessey, Chandrakant Tayade
{"title":"The Dysregulated IL-23/TH17 Axis in Endometriosis Pathophysiology.","authors":"Danielle J Sisnett, Katherine B Zutautas, Jessica E Miller, Harshavardhan Lingegowda, Soo Hyun Ahn, Alison McCallion, Olga Bougie, Bruce A Lessey, Chandrakant Tayade","doi":"10.4049/jimmunol.2400018","DOIUrl":"10.4049/jimmunol.2400018","url":null,"abstract":"<p><p>Endometriosis is a chronic inflammatory disease in which endometrial-like tissue grows ectopically, resulting in pelvic pain and infertility. IL-23 is a key contributor in the development and differentiation of TH17 cells, driving TH17 cells toward a pathogenic profile. In a variety of inflammatory and autoimmune disorders, TH17 cells secrete proinflammatory cytokines, including IL-17, contributing to disease pathophysiology. Our studies and others have implicated IL-17 and TH17 cell dysregulation in endometriosis, which is associated with disease severity. In this article, we address whether IL-23-driven TH17 cells contribute to cardinal features of lesion proliferation, vascularization, and inflammation in endometriosis using patient samples, representative cell lines, and our established mouse model of endometriosis. The results indicated dysregulated expression of key genes in the IL-23/TH17 axis in patient ectopic and eutopic endometrial samples and increased IL-23 protein in patient plasma compared with controls. In vitro studies using primary human TH cells determined that rIL-23 mixture treatment increased pathogenic TH17 cell frequency. Similarly, rIL-23 treatment of cell lines (12Z cells, EECCs, HUVECs, and hESCs) representative of the endometriotic lesion microenvironment increased cytokines and growth factors, which play a role in lesion establishment and maintenance. In a syngeneic mouse model of endometriosis, rIL-23 treatment altered numbers of myeloid and T cell subsets in peritoneal fluid and increased giant cells within the lesion. Lesions from rIL-23-treated mice did not reveal significant alterations in proliferation/vascularization, although trends of increased proliferation and vascularization were observed. Collectively, these findings provide insights into the impact of the IL-23/TH17 axis on local immune dysfunction and broadly on endometriosis pathophysiology.</p>","PeriodicalId":16045,"journal":{"name":"Journal of immunology","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140094196","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sensitization with Fungal Protease Allergen Establishes Long-Lived, Allergenic Th Cell Memory in the Lung. 真菌蛋白酶过敏原致敏可在肺部建立长效过敏性Th细胞记忆
IF 4.4 3区 医学
Journal of immunology Pub Date : 2024-05-01 DOI: 10.4049/jimmunol.2300694
Abigail Shapiro, Nicolas W S Caballes, Rebecca N Vera, Bruce S Klein, Paul J Brennan, Yen-Fei Wu, Darin L Wiesner
{"title":"Sensitization with Fungal Protease Allergen Establishes Long-Lived, Allergenic Th Cell Memory in the Lung.","authors":"Abigail Shapiro, Nicolas W S Caballes, Rebecca N Vera, Bruce S Klein, Paul J Brennan, Yen-Fei Wu, Darin L Wiesner","doi":"10.4049/jimmunol.2300694","DOIUrl":"10.4049/jimmunol.2300694","url":null,"abstract":"<p><p>Allergic asthma is a chronic inflammatory disease that affects millions of individuals worldwide. Exposure to allergens produced by a variety of otherwise harmless microbes, including fungi, predisposes individuals to immunopathologic disease upon subsequent encounters with allergen. We developed a mouse model that employs a purified protease produced by Aspergillus (Asp f 13) to investigate the contributions of CD4+ Th cells to recurrent lung inflammation. Notably, memory CD4+ T cells enhanced the eosinophil response of sensitized/rechallenged animals. In addition, memory CD4+ T cells maintained allergenic features, including expression of GATA-binding protein 3 and IL-5. Th2 memory T cells persisted in the peribronchiolar interstitium of the lung and expressed markers of tissue residence, such as CD69, CCR8, and IL-33R. Lastly, we identified a peptide epitope contained within Asp f 13 and generated a peptide-MHC class II tetramer. Using these tools, we further demonstrated the durability and exquisite sensitivity of memory T cells in promoting lung eosinophilia. Our data highlight important features of memory T cells that strengthen the notion that memory T cells are principal drivers of eosinophilic disease in murine models of allergic sensitization and episodic airway inflammation.</p>","PeriodicalId":16045,"journal":{"name":"Journal of immunology","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11037450/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140131723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Antibody-Suppressor CXCR5+CD8+ T Cells Are More Potent Regulators of Humoral Alloimmunity after Kidney Transplant in Mice Compared to CD4+ Regulatory T Cells. 与 CD4+ 调节性 T 细胞相比,抗体抑制性 CXCR5+CD8+ T 细胞是小鼠肾移植后体液异体免疫的更有效调节因子。
IF 4.4 3区 医学
Journal of immunology Pub Date : 2024-05-01 DOI: 10.4049/jimmunol.2300289
Jing L Han, Jason M Zimmerer, Qiang Zeng, Sachi Chaudhari, Anjali Satoskar, Mahmoud Abdel-Rasoul, Hope Uwase, Christopher K Breuer, Ginny L Bumgardner
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