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| 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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| 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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| 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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Article
| Open AccessEngineered dityrosine-bonding of the RSV prefusion F protein imparts stability and potency advantages
Here the authors describe a stabilization technology that engineers crosslinks between tyrosine sidechains into a natively folded vaccine immunogen and show that immunogenicity is improved in small animal models by locking the most potently neutralizing epitopes.
- Sonal V. Gidwani
- , Devarshi Brahmbhatt
- & Mark A. Yondola
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Article
| Open AccessFilamentous fungus-produced human monoclonal antibody provides protection against SARS-CoV-2 in hamster and non-human primate models
The filamentous fungus expression system Thermothelomyces heterothallica (C1) is a protein expression system that may be useful for large scale antibody production. Here the authors characterise the production of a human monoclonal antibody that neutralises SARS-CoV-2 and compare functional properties in vitro and in animal models to antibodies produced using other methods.
- Franziska K. Kaiser
- , Mariana Gonzalez Hernandez
- & Albert D.M.E. Osterhaus
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Article
| Open AccessBacteriophage DNA induces an interrupted immune response during phage therapy in a chicken model
Bacteriophage are potential therapeutics to target bacterial infections, but recent studies suggest that bacteriophage may induce immune responses in eukaryotic cells. Here the authors show that bacteriophage DNA induces interrupted host immunity in a chicken infection model.
- Magdalena Podlacha
- , Lidia Gaffke
- & Alicja Węgrzyn
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Article
| Open AccessHLA-class II restricted TCR targeting human papillomavirus type 18 E7 induces solid tumor remission in mice
The use of TCR engineered T cells holds promise for treatment of tumours, but is limited by awareness of clinically effective TCR molecules. Here the authors identify an MHC II restricted TCR that targets viral E7 of human papillomavirus type 18 and show effectivity in a murine model of solid tumour.
- Jianting Long
- , Xihe Chen
- & Yanyan Han
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Article
| Open AccessDistinct evolution of SARS-CoV-2 Omicron XBB and BA.2.86/JN.1 lineages combining increased fitness and antibody evasion
SARS-CoV-2 evolved into several sublineages harboring different mutations in spike. Here, the authors isolate and characterize nine SARS-CoV-2 variants and show that EG.5.1.3 has highest fitness in nasal epithelial cells, while JN.1 shows lower affinity to ACE2 and higher immune evasion compared to BA.2.86.1.
- Delphine Planas
- , Isabelle Staropoli
- & Olivier Schwartz
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Article
| Open AccessThunder-DDA-PASEF enables high-coverage immunopeptidomics and is boosted by MS2Rescore with MS2PIP timsTOF fragmentation prediction model
Human leukocyte antigen (HLA) class I peptide ligands (HLAIps) are targets for developing vaccines and immunotherapies. Here the authors report Thunder-DDA-PASEF, an immunopeptidomics method which enhances the identification of vital HLAIps crucial for vaccine and immunotherapy development.
- David Gomez-Zepeda
- , Danielle Arnold-Schild
- & Stefan Tenzer
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Article
| Open AccessDendritic cell-targeted therapy expands CD8 T cell responses to bona-fide neoantigens in lung tumors
Response to immune checkpoint inhibitors (ICIs) in patients with non-small cell lung cancer (NSCLC) remains suboptimal, even for tumors with elevated tumor mutational burden. Here the authors generate a model of NSCLC with enhanced mutational load, showing that, while still resistant to ICIs, hypermutated tumors become sensitive to dendritic cell-targeted therapy.
- Lucía López
- , Luciano Gastón Morosi
- & Federica Benvenuti
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Article
| Open AccessThe thymocyte-specific RNA-binding protein Arpp21 provides TCR repertoire diversity by binding to the 3’-UTR and promoting Rag1 mRNA expression
Regulation of thymocyte development by RNA-binding proteins is not fully characterized. Here the authors show the RBP ARPP21 interacting with the Rag1 3’-UTR to promote Rag1 expression, TCR rearrangement and an increased diversity of the TCR repertoire and that ARPP21 is down regulated by TCR stimulation.
- Meng Xu
- , Taku Ito-Kureha
- & Vigo Heissmeyer
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Article
| Open AccessMitochondrial metabolism sustains CD8+ T cell migration for an efficient infiltration into solid tumors
The migration of T cells into tumours and how this is regulated by metabolic pathways is not completely understood. Here the authors use human and xenograft mouse models to explore the functional changes in T cells during migration in tumours and how glycolytic and TCA cycle metabolism is involved.
- Luca Simula
- , Mattia Fumagalli
- & Emmanuel Donnadieu
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Article
| Open AccessQuantifying how single dose Ad26.COV2.S vaccine efficacy depends on Spike sequence features
SARS-CoV-2 variants with mutations in spike have emerged during the pandemic. Magaret et al. show that in Latin America, efficacy of the Ad26.COV2.S vaccine against moderate to severe–critical COVID-19 varied by sequence features, antibody escape scores, and neutralization impacting features of the SARS-CoV-2 variant.
- Craig A. Magaret
- , Li Li
- & Peter B. Gilbert
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Article
| Open AccessAgeing impairs the regenerative capacity of regulatory T cells in mouse central nervous system remyelination
Factors limiting CNS remyelination with age are poorly understood. Here the authors show that aged Treg lose capacity to support CNS remyelination in mice, which can be restored in a young environment.
- Alerie Guzman de la Fuente
- , Marie Dittmer
- & Denise C. Fitzgerald
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Article
| Open AccessNon-coding autoimmune risk variant defines role for ICOS in T peripheral helper cell development
Fine-mapping has previously implicated the non-coding single nucleotide polymorphism rs117701653 as a risk variant for rheumatoid arthritis and type 1 diabetes, however its function remained unclear. Here the authors show that this variant decreases binding of the inhibitory factor SMCHD1 to enhance expression of ICOS, promoting development of potentially pathogenic T peripheral helper cells.
- Taehyeung Kim
- , Marta Martínez-Bonet
- & Peter A. Nigrovic
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Article
| Open AccessAntiviral responses induced by Tdap-IPV vaccination are associated with persistent humoral immunity to Bordetella pertussis
Epidemics of whooping cough caused by Bordetella pertussis have been seen and are linked to waning immunity globally. Here the authors explore responses to inactivated poliovirus (IPV) in the Tdap-IPV vaccine and show it stimulates early antiviral responses in monocytes and dendritic cells that are associated with long-lived pertussis antibody responses.
- Joshua Gillard
- , Madeleine Suffiotti
- & Dimitri A. Diavatopoulos
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Article
| Open AccessTick hemocytes have a pleiotropic role in microbial infection and arthropod fitness
Rolandelli et al. define how immune cells from the tick Ixodes scapularis are affected by infection and show that this cell population have distinct signatures and functions in immunity, metabolism and proliferation.
- Agustin Rolandelli
- , Hanna J. Laukaitis-Yousey
- & Joao H. F. Pedra
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Article
| Open AccessStem Leydig cells support macrophage immunological homeostasis through mitochondrial transfer in mice
The role of stem Leydig cells in restoration of male fertility after acute injury is not clear. In an acute injury mouse model of testicular torsion, the authors show that Stem Leydig cells can restore testicular immunological homeostasis by mitochondria transfer to macrophages in a TRPM7-mediated manner.
- Ani Chi
- , Bicheng Yang
- & Min Zhang
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Article
| Open AccessHuman IgG Fc-engineering for enhanced plasma half-life, mucosal distribution and killing of cancer cells and bacteria
Antibody based biologics are a rapidly growing class of therapeutics with interest to enhance their performance, distribution, longevity and effectivity. Here, authors report the engineering of human IgG Fc to enhance plasma half-life, mucosal distribution and killing of cancer cells and bacteria.
- Stian Foss
- , Siri A. Sakya
- & Jan Terje Andersen
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Article
| Open AccessNFκB and NLRP3/NLRC4 inflammasomes regulate differentiation, activation and functional properties of monocytes in response to distinct SARS-CoV-2 proteins
The immunobiology regulating the contribution of monocytes to severe COVID-19 immunopathology are not fully understood. Here the authors show that SARS-CoV-2 S1 and NP proteins differentially promote NLRP3/NLRC4 inflammasome activity, differentiation, and T cell-priming function of monocytes.
- Ilya Tsukalov
- , Ildefonso Sánchez-Cerrillo
- & Enrique Martin-Gayo
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Article
| Open AccessMalaria blood stage infection suppresses liver stage infection via host-induced interferons but not hepcidin
Blood and liver stages of malaria parasites can affect each other, but it’s not clear how this may affect live-attenuated whole parasite vaccination. Here the authors show that malaria parasite blood stage infection subdues new infection and vaccination by suppressing growth of its liver stage via host cytokines.
- Hardik Patel
- , Nana K. Minkah
- & Stefan H. I. Kappe
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Article
| Open AccessStructural insights into IL-11-mediated signalling and human IL6ST variant-associated immunodeficiency
IL-11 and IL-6 signal by binding gp130. Here, Gardner et al. use cryoEM to discover how IL-11 engages gp130 and co-receptor IL-11Rα. Together with MD simulations, they provide insight into gp130 mutations that cause human immunodeficiencies.
- Scott Gardner
- , Yibo Jin
- & Doryen Bubeck
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Article
| Open AccessRHBDL4-triggered downregulation of COPII adaptor protein TMED7 suppresses TLR4-mediated inflammatory signaling
Toll-like receptor 4 (TLR4) is a key pattern recognition receptor that primarily responds to ligation of bacterial lipopolysaccharide. Here the authors suggest the intramembrane protease RHBDL4 as a regulator of TLR4 signaling.
- Julia D. Knopf
- , Susanne S. Steigleder
- & Marius K. Lemberg
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Article
| Open AccessEvidence for immune activation in pathogenesis of the HLA class II associated disease, podoconiosis
Podoconiosis is triggered by long term barefoot exposure to volcanic red clay soil. Here, Negash et al characterise the immune profile of podoconiosis patients to show this disease is associated with high levels of immune activation and inflammation.
- Mikias Negash
- , Menberework Chanyalew
- & Melanie J. Newport
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Article
| Open AccessGene expression analyses reveal differences in children’s response to malaria according to their age
Here the authors use dual RNA sequencing to characterize host and parasite gene expression from 136 Malian children with symptomatic Plasmodium falciparum infection. They find that parasitemia levels correlate with neutrophil and T cell levels and that the child’s age correlates with innate immune gene expression as well as gametocyte levels.
- Kieran Tebben
- , Salif Yirampo
- & David Serre
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Article
| Open AccessDevelopment of ISB 1442, a CD38 and CD47 bispecific biparatopic antibody innate cell modulator for the treatment of multiple myeloma
Rational antibody engineering can greatly improve the clinical value of therapeutic antibodies. Here authors describe ISB 1442, a fully human bispecific antibody, consisting of two targeting modules against two different epitopes on CD38, combined with a targeting module blocking CD47 and engineered effector properties, to enhance complement dependent cytotoxicity, antibody dependent cells cytotoxicity and antibody dependent cell phagocytosis to combat multiple myeloma.
- C. Grandclément
- , C. Estoppey
- & S. Sammicheli
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Article
| Open AccessALKBH5-mediated m6A modification of IL-11 drives macrophage-to-myofibroblast transition and pathological cardiac fibrosis in mice
Cardiac macrophage contributes to the onset of cardiac fibrosis, but the underneath mechanisms remain unclear. Here the authors show that mouse cardiac macrophages from circulating monocytes may trans-differentiate into myofibroblast under hypertensive conditions for fibrosis development, with an AKLBH5/IL11 molecular axis modulating this macrophage-to-myofibroblast transition.
- Tao Zhuang
- , Mei-Hua Chen
- & Cheng-Chao Ruan
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Article
| Open AccessLactate dehydrogenase A regulates tumor-macrophage symbiosis to promote glioblastoma progression
Macrophage infiltration and metabolic rewiring are associated with glioblastoma. Here the authors show that the glycolytic enzyme lactate dehydrogenase-A mediates macrophage-cancer cell crosstalk to promote glioblastoma progression.
- Fatima Khan
- , Yiyun Lin
- & Peiwen Chen
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