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| Open AccessVaccination impairs de novo immune response to omicron breakthrough infection, a precondition for the original antigenic sin
Immune imprinting can affect the response to future infection with pathogen variants. Here, Pušnik et. al. demonstrate that previous vaccination with wild-type SARS-CoV-2 vaccine hampers the formation of an immune response to mutated regions of omicron surface proteins following omicron breakthrough infection.
- Jernej Pušnik
- , Jasmin Zorn
- & Hendrik Streeck
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Article
| Open AccessImmunoglobulin G N-glycan markers of accelerated biological aging during chronic HIV infection
In this study, Giron et al. find that people living with chronic HIV experience accelerated aging-associated alterations in antibody glycans. These alterations, attributed to senescence enzymes, predict comorbidities and reduce the antiviral function of antibodies.
- Leila B. Giron
- , Qin Liu
- & Mohamed Abdel-Mohsen
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Article
| Open AccessAntigen-specific Fab profiling achieves molecular-resolution analysis of human autoantibody repertoires in rheumatoid arthritis
Although many autoimmune diseases are characterized by the presence of autoantibodies, complete characterisation of autoantibody repertoires is lacking. Here, the authors introduce an autoantigen-specific Fab profiling method to show that the autoantibody repertoire in rheumatoid arthritis is diverse yet dominated only by a few clones.
- Eva Maria Stork
- , Danique M. H. van Rijswijck
- & Albert Bondt
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Article
| Open AccessSARS-CoV-2-specific cellular and humoral immunity after bivalent BA.4/5 COVID-19-vaccination in previously infected and non-infected individuals
Prior infection or exposure to SARS-CoV-2 may influence immunogenicity and effectiveness of subsequent vaccination to new strains of virus. Here the authors show that immunogenicity of a BA.4/5 mRNA vaccine differed in recipients depending on whether they had been exposed to or infected with an earlier strain of virus.
- Rebecca Urschel
- , Saskia Bronder
- & Martina Sester
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Article
| Open AccessDHX9 maintains epithelial homeostasis by restraining R-loop-mediated genomic instability in intestinal stem cells
Inflammatory bowel disease (IBD) is featured with epithelial barrier dysfunction, however, the underlying mechanism is less clear. Here, the authors show that DHX9 deficiency in intestinal stem cells (ISCs) induces accumulation of abnormal R-loops and subsequent genomic instability, leading to impairment of ISCs and development of IBD.
- Xingxing Ren
- , Qiuyuan Liu
- & Shu Zhu
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Article
| Open AccessDermal injury drives a skin to gut axis that disrupts the intestinal microbiome and intestinal immune homeostasis in mice
The microbial community in the intestine can affect other organs such as the skin but it is not clear if the opposite can occur. Here the authors show that skin wounding affects the microbial composition of the intestinal flora which then enhances DSS induced colitis and intestinal inflammation.
- Tatsuya Dokoshi
- , Yang Chen
- & Richard L. Gallo
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Article
| Open AccessA live attenuated vaccine to prevent severe neonatal Escherichia coli K1 infections
Authors utilise a murine model of Escherichia coli infection to immunologically characterise the properties of their live attenuated vaccine candidate. They also demonstrate protection of newborn mice following maternal immunisation.
- Youssouf Sereme
- , Cécile Schrimp
- & David Skurnik
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Article
| Open AccessExtracellular DNA traps in a ctenophore demonstrate immune cell behaviors in a non-bilaterian
Identifying core mechanisms of immune cells is critical for understanding the evolution of animal immune function. Here, Vandepas et al. report that ctenophore immune-like cells release extracellular DNA traps when exposed to microbes.
- Lauren E. Vandepas
- , Caroline Stefani
- & Adam Lacy-Hulbert
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Article
| Open AccessPhage-specific immunity impairs efficacy of bacteriophage targeting Vancomycin Resistant Enterococcus in a murine model
Bacteriophage can be used to target bacterial infection and used as a therapeutic approach for antibiotic resistant bacteria. Here the authors show that the use of bacteriophage to target antibiotic resistant bacteria in a mouse model of infection can induce phage specific immune responses and may impair their therapeutic efficacy.
- Julia D. Berkson
- , Claire E. Wate
- & Paul E. Carlson Jr.
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Article
| Open AccessPotent human neutralizing antibodies against Nipah virus derived from two ancestral antibody heavy chains
Nipah virus is a WHO priority pathogen, and there is currently no approved drug for clinical therapy. Here, the authors identified potent human neutralizing antibodies that block receptor binding and provide protection against NiV infection in vivo.
- Li Chen
- , Mengmeng Sun
- & Sandra Chiu
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Article
| Open AccessSenescent-like macrophages mediate angiogenesis for endplate sclerosis via IL-10 secretion in male mice
In their previous study, the researchers systematically revealed that endplate sclerosis is a significant aspect of spine degeneration or aging and a primary source of spinal pain. However, the underlying mechanisms of endplate sclerosis remained unclear. In their current report, it is shown that senescent cells accumulate in the sclerotic endplates of lumbar spine instability (LSI) or aging mouse models. The clearance of these senescent cells was found to restrain angiogenesis coupled with endplate sclerosis. Notably, macrophages were identified as undergoing senescence in the sclerotic endplates. The specific knockout of cdkn2a (p16) in macrophages abrogated LSI or aging-induced angiogenesis and sclerosis in the endplates. Moreover, both in vivo and in vitro studies indicated that IL-10 mediates the effects of senescent macrophages on angiogenesis and sclerosis in the endplates. Overall, these findings suggest that senescent macrophages orchestrate angiogenesis coupling with endplate sclerosis via the IL-10/pSTAT3 axis. This study enhances the understanding of the connection between immune senescence and endplate sclerosis and uncovers senescent macrophage-initiated endplate sclerosis as potential therapeutic targets for spinal degeneration.
- Yonggang Fan
- , Weixin Zhang
- & Shuangfei Ni
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Article
| Open AccessDevelopmental self-reactivity determines pathogenic Tc17 differentiation potential of naive CD8+ T cells in murine models of inflammation
The heterogeneity in naive CD8+ T cells is essential for diverse immune responses. Here the authors show that variations in developmental self-reactivity of CD8+ T cells influence their differentiation into Tc17 cells in inflammatory conditions.
- Gil-Woo Lee
- , Young Ju Kim
- & Jae-Ho Cho
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Article
| Open AccessMonoclonal antibodies targeting sites in respiratory syncytial virus attachment G protein provide protection against RSV-A and RSV-B in mice
Effective antibodies targeting various respiratory syncytial virus (RSV) proteins are needed to address public health burden of RSV. Here the authors shows that in addition to the currently approved F-targeting monoclonal antibodies, anti-G cross-reactive monoclonal antibodies to RSV-A and RSV-B strains can provide cross-protection and prevent from RSV disease.
- Youri Lee
- , Laura Klenow
- & Surender Khurana
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Article
| Open AccessLoss of CREBBP and KMT2D cooperate to accelerate lymphomagenesis and shape the lymphoma immune microenvironment
CREBBP and KMT2D mutations frequently co-occur in B cell lymphomas with unclear significance. Here the authors show that they cooperate to skew B cell fate decisions and induce a CD8-depleted immune-evasive microenvironment to facilitate lymphomagenesis.
- Jie Li
- , Christopher R. Chin
- & Ari M. Melnick
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Article
| Open AccessDupilumab-associated head and neck dermatitis shows a pronounced type 22 immune signature mediated by oligoclonally expanded T cells
Dupilumab-associated head and neck dermatitis has been described in a subset of patients treated with the IL4R-blocker dupilumab. Here the authors characterise the immune cell composition and single-cell transcriptome in comparison with untreated forms of atopic dermatitis in a small cohort showing increases in IL-22-associated genes.
- Christine Bangert
- , Natalia Alkon
- & Patrick M. Brunner
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Article
| Open AccessA commensal protozoan attenuates Clostridioides difficile pathogenesis in mice via arginine-ornithine metabolism and host intestinal immune response
Faecal microbiome transplant has been shown to be able to reduce Clostridioides difficile infection. Here the authors show that an intestinal commensal protozoan reduces C. difficile infection by inhibiting neutrophil recruitment and affecting arginine-ornithine metabolism.
- Huan Yang
- , Xiaoxiao Wu
- & Bing Gu
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Article
| Open AccessObesity-related T cell dysfunction impairs immunosurveillance and increases cancer risk
Obesity represents a risk factor for cancer and compromises immune function, however the mechanisms linking the two together are not fully known. Here authors show in a mouse sarcoma model that obesity increases tumour incidence, impairs intra-tumoral T cell immunity but paradoxically increases sensitivity to immune therapy via impairing immunoediting.
- Alexander Piening
- , Emily Ebert
- & Ryan M. Teague
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Article
| Open AccessDysregulation of Wnt/β-catenin signaling contributes to intestinal inflammation through regulation of group 3 innate lymphoid cells
RORγt+ group 3 innate lymphoid cells are intimately involved in intestinal homeostasis, their dysregulation is linked to inflammatory gut diseases. Here the authors show that dysregulated Wnt/β-catenin signalling contributes to disturbed regulation of group 3 innate cells and intestinal inflammation.
- Jiacheng Hao
- , Chang Liu
- & Xiaohuan Guo
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Article
| Open AccessCD276-dependent efferocytosis by tumor-associated macrophages promotes immune evasion in bladder cancer
Tumor associated macrophages (TAM) are playing an active role in tumor immune evasion in multiple cancer type. Here authors show that CD276 expression by TAMs may underpin this immune-suppressive role via promoting efferocytosis and suppressing MHC class II expression, which result in decreased CD4+ and CD8 + T cell infiltration.
- Maosheng Cheng
- , Shuang Chen
- & Liang Peng
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Article
| Open AccessPCSK9 stimulates Syk, PKCδ, and NF-κB, leading to atherosclerosis progression independently of LDL receptor
Proprotein convertase subtilisin/kexin type-9 (PCSK9) binds to and degrades low-density lipoprotein (LDL) receptor, leading to an increase of LDL cholesterol in blood. Here the authors show that PCSK9 itself directly induces inflammation and aggravates atherosclerosis independently of the LDL receptor.
- Dasom Shin
- , Soungchan Kim
- & Hyo-Soo Kim
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Article
| Open AccessMyeloid-derived suppressor cell mitochondrial fitness governs chemotherapeutic efficacy in hematologic malignancies
Myeloid derived suppressor cells (MDSC) are associated with tumourigenesis and therapy response. Here, the authors show that beta 2-adrenergic receptor activation in MDSC leads to metabolic rewiring which regulates chemotherapy response in preclinical models of blood cancer.
- Saeed Daneshmandi
- , Jee Eun Choi
- & Hemn Mohammadpour
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Article
| Open AccessGasdermin D promotes influenza virus-induced mortality through neutrophil amplification of inflammation
Gasdermin D (GSDMD) is a pore forming protein activated by inflammasome derived caspases. Here the authors characterize the function of GSDMD in mouse influenza virus infection and show that immunopathology is reduced in the absence of GSDMD and involves changes in neutrophil function.
- Samuel Speaks
- , Matthew I. McFadden
- & Jacob S. Yount
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Article
| Open AccessSecondary bone marrow graft loss after third-party virus-specific T cell infusion: Case report of a rare complication
Infusion of virus-specific T (VST) cells is used for treating drug-resistant viremia. Here the authors report, as part of the clinical trial, NCT03475212, a lethal case of unexpected bone marrow graft loss and chimerism reversal that is induced by the infusion of third-party VST intended to treat transplantation-related cytomegalovirus viremia.
- Michael D. Keller
- , Stefan A. Schattgen
- & Catherine M. Bollard
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Article
| Open AccessImmunosenescence and vaccine efficacy revealed by immunometabolic analysis of SARS-CoV-2-specific cells in multiple sclerosis patients
SARS-CoV-2 immune responses after vaccination in individuals with multiple sclerosis (MS) remain poorly understood. Here, using mass cytometry, the authors demonstrate that, following three doses of mRNA vaccine, patients with MS have distinct metabolic profiles in antigen-specific B and T cells.
- Sara De Biasi
- , Domenico Lo Tartaro
- & Andrea Cossarizza
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Article
| Open AccessCholesterol-binding motifs in STING that control endoplasmic reticulum retention mediate anti-tumoral activity of cholesterol-lowering compounds
Cholesterol lowering medication positively affects anti-cancer immune response, but the underpinning mechanism is not fully known. Here authors show that the effect is mediated by specific cholesterol binding motifs in STING, a key mediator of inflammation, via regulating its trafficking to Golgi.
- Bao-cun Zhang
- , Marlene F. Laursen
- & Martin R. Jakobsen
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Article
| Open AccessAutophagy-enhancing ATG16L1 polymorphism is associated with improved clinical outcome and T-cell immunity in chronic HIV-1 infection
T cell dysregulation is a hallmark of chronic HIV-1 infection that is partially restored by antiretroviral therapy. Here the authors show that ATG16L1 rs6861 polymorphism is associated clinically with prolonged control of disease pathogenesis, and functionally with enhanced autophagy and T-cell immunity in chronically HIV-1 infected individuals.
- Renée R. C. E. Schreurs
- , Athanasios Koulis
- & Carla M. S. Ribeiro
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Article
| Open AccessThe IL-33/ST2 axis is protective against acute inflammation during the course of periodontitis
Current animal models of periodontitis are biased towards sample collection from gingival tissue, while other periodontal structures may play similarly important role in the initiation and maintenance of inflammation. Here authors present a model that enables a more comprehensive and longitudinal assessment of periodontal tissues, which points to a pivotal role for the peri-root tissues and an IL-33/ST2 axis in the pathogenesis.
- Anhao Liu
- , Mikihito Hayashi
- & Tomoki Nakashima
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Article
| Open AccessThe SARS-CoV-2 neutralizing antibody response to SD1 and its evasion by BA.2.86
Due to the focus of vaccination on the SARS CoV-2 spike protein, spike has been associated with high levels of viral mutation and subsequent immune escape. Here the authors study a conserved epitope in SARS CoV-2 sub-domain-1 and characterise the neutralising antibody response and evasion in contemporary SARS COV-2 viral strains.
- Daming Zhou
- , Piyada Supasa
- & Gavin R. Screaton
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Article
| Open AccessRegulatory T cells expressing CD19-targeted chimeric antigen receptor restore homeostasis in Systemic Lupus Erythematosus
Systemic Lupus Erythematosus (SLE) is a chronic and progressive autoimmune disease characterized by abnormally activated B cells causing organ damage. Here authors introduce an adoptive cell therapy involving regulatory T cells overexpressing FoxP3 and harboring an anti-CD19 CAR to inhibit pathological B cells and thus tissue-harming autoimmunity in a humanized mouse model.
- M. Doglio
- , A. Ugolini
- & C. Bonini
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Article
| Open AccessiNOS is necessary for GBP-mediated T. gondii clearance in murine macrophages via vacuole nitration and intravacuolar network collapse
IFNγ-inducible guanylate binding proteins (GBPs) recognize the Toxoplasma gondii vacuole during infection. Here, the authors report that inducible nitric oxide synthase (iNOS) is necessary for efficient parasite clearance by GBPs and that reactive nitrogen species produced by iNOS lead to nitration of the parasite vacuole and collapse of the intravacuolar network space, preventing parasite escape from GBP targeting.
- Xiao-Yu Zhao
- , Samantha L. Lempke
- & Sarah E. Ewald
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Article
| Open AccessProfiling the colonic mucosal response to fecal microbiota transplantation identifies a role for GBP5 in colitis in humans and mice
Faecal microbiota transplantation (FMT) can be used to treat established colitis. Here the authors profile transcriptional changes in humans after FMT and how this relates to colitis remission identifying a role for GBP5, and this protein is validated in a loss-of-function mouse model.
- Laurence D. W. Luu
- , Abhimanu Pandey
- & Nadeem O. Kaakoush
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Article
| Open AccessIKK2 controls the inflammatory potential of tissue-resident regulatory T cells in a murine gain of function model
Loss of function mutation studies has provided insights into regulatory T-cell biology. Here Cardinez et al explore the effects of a murine Ikbkb (IKK2) gain of function model and show IKK2 activity results in the expansion of regulatory T cells with partial effector function and suggest an IKK2 dose-dependent relation between psoriatic immunopathology and psoriatic arthritis.
- Chelisa Cardinez
- , Yuwei Hao
- & Matthew C. Cook
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Article
| Open AccessExpression of USP25 associates with fibrosis, inflammation and metabolism changes in IgG4-related disease
IgG4-related disease is a fibro-inflammatory disorder, characterized by infiltration of IgG4 producing plasma cells in the target organs. Here authors show that the affected B cells express less ubiquitin-specific protease 25 (USP25), and this results in activation of multiple pathways involved in cytoskeleton reorganization, inflammation and energy metabolism, which might govern disease pathogenesis.
- Panpan Jiang
- , Yukai Jing
- & Chaohong Liu
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Article
| Open AccessPrior infection with unrelated neurotropic virus exacerbates influenza disease and impairs lung T cell responses
Co-infections are much less studied than single pathogen infections. Here, the authors show that co-infection with two unrelated viruses, neurotropic Semliki Forest virus and influenza A virus, exacerbates influenza-related lung pathology and prolongs lung virus replication in a mouse model.
- Isabelle Jia-Hui Foo
- , Brendon Y. Chua
- & Lukasz Kedzierski
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Article
| Open AccessRab4A-directed endosome traffic shapes pro-inflammatory mitochondrial metabolism in T cells via mitophagy, CD98 expression, and kynurenine-sensitive mTOR activation
Activation of the mechanistic target of rapamycin (mTOR) is important in the metabolic function of proinflammatory T cells in autoimmunity. Here the authors characterise how Rab4A is involved with CD98 and endosome recycling which subsequently affects mTOR activation, autoimmunity and T cell expansion.
- Nick Huang
- , Thomas Winans
- & Andras Perl
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Article
| Open AccessDefective mitochondria remodelling in B cells leads to an aged immune response
B cell activation in the germinal centre (GC) is accompanied by metabolic adaptation, but the functions of mitochondria remodelling during this process is unclear. Here the authors find that B cell-specific deficiency of Tfam, a transcription factor modulating mitochondria remodelling, impacts GC responses and induces aged immune features in B cells.
- Marta Iborra-Pernichi
- , Jonathan Ruiz García
- & Nuria Martínez-Martín
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Article
| Open AccessBET inhibitors drive Natural Killer activation in non-small cell lung cancer via BRD4 and SMAD3
Combination of BET inhibitors (BETi) with immunotherapy has been reported to be synergic for the treatment of non-small cell lung carcinoma (NSCLC). Here, the authors show that BETi-induced epigenetic reprogramming downregulates the expression of NK cell inhibitory receptors on NK cells, increasing their activation and cytotoxicity against NSCLC.
- Francesca Reggiani
- , Giovanna Talarico
- & Valentina Sancisi
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Article
| Open AccessMultipeptide vaccines for melanoma in the adjuvant setting: long-term survival outcomes and post-hoc analysis of a randomized phase II trial
Peptide-based cancer vaccines require epitopes for both CD8+ and CD4+ T cells. Here the authors report the long-term outcomes of a randomized phase II trial (NCT00118274) in patients with melanoma designed to evaluate a class I MHC-restricted peptide vaccine plus one of two “helper” peptide preparations to stimulate CD4+ T cells, either non-specific help or melanoma-specific help.
- Emily K. Ninmer
- , Hong Zhu
- & Craig L. Slingluff Jr
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Comment
| Open AccessAn OLD protein teaches us new tricks: prokaryotic antiviral defense
Reporting in Nature Communications, Huo and colleagues provide three-dimensional structures of a bacterial immune defense system called Gabija. This work builds on recently published structural and functional studies and contributes strong evidence that protein assembly formation is essential for antiviral function.
- Eirene Marie Q. Ednacot
- & Benjamin R. Morehouse
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Article
| Open AccessPredictive evolutionary modelling for influenza virus by site-based dynamics of mutations
Seasonal influenza vaccine effectiveness depends on including virus strains in the vaccine that closely match those circulating in the upcoming season. In this study, the authors develop a computational model of influenza virus evolution to predict future circulating strains and therefore support vaccine strain selection.
- Jingzhi Lou
- , Weiwen Liang
- & Maggie Haitian Wang
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Article
| Open AccessTertiary lymphoid structures and B cells determine clinically relevant T cell phenotypes in ovarian cancer
Intratumoral tertiary lymphoid structure (TLS) density has been associated with better prognosis in several cancer types. Here the authors provide a comprehensive characterization of TLSs in patients with high-grade serous ovarian carcinoma.
- Lenka Kasikova
- , Jana Rakova
- & Jitka Fucikova
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Article
| Open AccessImmunization with V987H-stabilized Spike glycoprotein protects K18-hACE2 mice and golden Syrian hamsters upon SARS-CoV-2 infection
In this study, the authors report a mutation that increases the production of recombinant SARS-CoV-2 Spike and exposure of the RBD. In animal models, a Spike-based vaccine containing the mutation induces strong immunogenicity, provides protection from disease and results in faster tissue viral clearance.
- Carlos Ávila-Nieto
- , Júlia Vergara-Alert
- & Jorge Carrillo
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Article
| Open AccessLong-term effects of Omicron BA.2 breakthrough infection on immunity-metabolism balance: a 6-month prospective study
Here the authors study recovery from mild to moderate Omicron breakthrough infection at six months post infection. Serum proteomics, PBMC single-cell transcriptomics and clinical parameters indicate slow recovery with coagulation abnormalities and an imbalance of the immune response and metabolism remaining.
- Yanhua Li
- , Shijie Qin
- & George Fu Gao
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Article
| Open AccessSCGB1D2 inhibits growth of Borrelia burgdorferi and affects susceptibility to Lyme disease
The genetic basis of susceptibility to Lyme disease is largely unknown. Here, the authors discover a risk locus in the gene encoding the protein Secretoglobin family 1D member 2, which is expressed in skin and affects infection by the bacteria that causes Lyme disease in vitro and in vivo.
- Satu Strausz
- , Erik Abner
- & Hanna M. Ollila
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Article
| Open AccessAxl and MerTK regulate synovial inflammation and are modulated by IL-6 inhibition in rheumatoid arthritis
The TAM tyrosine kinases, Axl and MerTK, have been implicated in rheumatoid arthritis (RA). Here, using a synovial tissue bioresource of patients with RA, the authors describe how Axl and MerTK expression and function are linked to synovial histopathology, disease activity, and therapeutic intervention with IL-6 inhibitors.
- Alessandra Nerviani
- , Marie-Astrid Boutet
- & Costantino Pitzalis
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Article
| Open AccessBeyond the microcirculation: sequestration of infected red blood cells and reduced flow in large draining veins in experimental cerebral malaria
Cerebral malaria can lead to fatal brain swelling. Oelschlegel et al. find infected red blood cells and reduced flow in large draining cerebral veins in mouse model of cerebral malaria, suggesting that impaired venous efflux could cause the swelling.
- A. M. Oelschlegel
- , R. Bhattacharjee
- & G. Nishanth
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Article
| Open AccessClearance of persistent SARS-CoV-2 associates with increased neutralizing antibodies in advanced HIV disease post-ART initiation
There is limited data on immune factors contributing to SARS-CoV-2 viral clearance in people living with HIV. Here, the authors show that re-emergence of the neutralizing antibody response may be key to clearing persistent SARS-CoV-2 infection in ART-mediated recovery from immunosuppression in advanced HIV disease.
- Farina Karim
- , Catherine Riou
- & Alex Sigal
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Article
| Open AccessProinflammatory polarization of engineered heat-inducible macrophages reprogram the tumor immune microenvironment during cancer immunotherapy
Alternatively activated macrophages have a pivotal role in resolving inflammation but in the tumour microenvironment they are immunosuppressive. Here author show that adoptively transferred engineered macrophages harbouring a heat-inducible genetic switch can resist the polarizing effect of the tumour microenvironment, and do not only remain pro-inflammatory themselves but also re-polarise the endogenous macrophages upon controlled warming with a purpose-made device.
- Yanan Xue
- , Xiaojie Yan
- & Yuan Ping
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Article
| Open AccessImmunopeptidomics-based identification of naturally presented non-canonical circRNA-derived peptides
Abnormally expressed circular RNAs (circRNAs) represent an unexplored source of tumor-specific antigens in cancer. Here, the authors developed an immunopeptidomics workflow to identify human leukocyte antigen bound peptides specifically derived from the potential translation of these transcripts.
- Humberto J. Ferreira
- , Brian J. Stevenson
- & Michal Bassani-Sternberg
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