Issues
TOP READS
BRIEF REVIEWS
CUTTING EDGE
Cutting Edge: Mouse SARS-CoV-2 Epitope Reveals Infection and Vaccine-Elicited CD8 T Cell Responses
N219-227 is a dominant B6 mouse epitope of SARS-CoV-2 nucleoprotein.
SARS-CoV-2 infection in hACE2 mice and humans promotes CD8 T cells against N219-227.
Vaccine route affects the location and number of SARS-CoV-2 N memory CD8 T cells.
Cutting Edge: Hypoxia-Induced Ubc9 Promoter Hypermethylation Regulates IL-17 Expression in Ulcerative Colitis
SUMOylation of ROR-γt is defective in the inflamed colon tissue of UC patients.
HIF-1α inhibits Ubc9 expression via promoter DNA methylation.
HIF-1α–depleted Th17 cells are less colitogenic.
AUTOIMMUNITY
Gut Commensal Segmented Filamentous Bacteria Fine-Tune T Follicular Regulatory Cells to Modify the Severity of Systemic Autoimmune Arthritis
SFB-mediated CTLA-4 reduction is associated with increased Tfr glycolytic activity.
Reduced Nur77, an indicator of TCR signal strength, is linked to SFB-reduced CTLA-4.
Nur77 deficiency causes an increased glycolysis and decreased CTLA-4 in Tfr cells.
SZB120 Exhibits Immunomodulatory Effects by Targeting eIF2α to Suppress Th17 Cell Differentiation
SZB120 inhibits Th17 cell differentiation by enhancing eIF2α phosphorylation.
SZB120 efficiently alleviates autoimmune diseases involving the CNS and skin.
IMMUNE REGULATION
The Anti-Inflammatory Immune Response in Early Trichinella spiralis Intestinal Infection Depends on Serine Protease Inhibitor–Mediated Alternative Activation of Macrophages
Beneficial effects of Ts-serpin regulation on T. spiralis survival were identified.
A Ts-serpin–triggered mechanism was found in macrophages independent of IL-4Rα.
The anti-inflammatory effect of Ts-serpin in a TNBS-induced IBD model was verified.
IMMUNOTHERAPY AND VACCINES
Interruption of Thymic Activity in Adult Mice Improves Responses to Tumor Immunotherapy
Interrupting thymic activity in adult mice favors effector T cells.
Thymectomy in adult mice perturbs Treg homeostasis.
Thymectomy in adult mice potentiates antitumor immunotherapies.
Manganese-Doped Silica-Based Nanoparticles Promote the Efficacy of Antigen-Specific Immunotherapy
Mn delivered by silica-based nanoparticles conveys ROS-associated adjuvancy.
Nanoadjuvant drives DC activation and Ag cross-presentation.
Nanoadjuvant induces tumor-eliminating cytotoxic cellular immune response in vivo.
Polyfunctional Tier 2–Neutralizing Antibodies Cloned following HIV-1 Env Macaque Immunization Mirror Native Antibodies in a Human Donor
A total of 58 mAbs were cloned after HIV-1 DNA + unconstrained protein trimer coimmunization.
Cloned mAbs targeting V3 and CD4bs were capable of tier 2 neutralization.
Alleles mapped with an individualized database show low somatic hypermutation from germline.
INFECTIOUS DISEASE AND HOST RESPONSE
The Phosphoenolpyruvate Carboxykinase Is a Key Metabolic Enzyme and Critical Virulence Factor of Leishmania major
PEPCK-deficient Leishmania major was generated using CRISPR-Cas9 technology.
Deficiency of PEPCK results in altered metabolism and mitochondrial integrity.
PEPCK−/− parasites are attenuated in vivo and induced blunted immune response.
Mobilization of γδ T Cells and IL-10 Production at the Acute Phase of Hepatitis E Virus Infection in Cytomegalovirus Carriers
Non-Vδ2 γδ T cells expand at the acute phase of HEV infection in HCMV carriers.
HEV promotes IL-10 production and suppressive activity in Th1-type γδ T cells.
Serum IL-10 is specifically elevated in HEV-infected HCMV carriers.
INNATE IMMUNITY AND INFLAMMATION
Activated Neutrophils Propagate Fetal Membrane Inflammation and Weakening through ERK and Neutrophil Extracellular Trap–Induced TLR-9 Signaling
FM-activated neutrophils propagate FM inflammation and weakening.
ERK signaling mediates activated neutrophil-induced FM inflammation and weakening.
NETs drive FM weakening via TLR-9 activation.
Identification and Characterization of Zebrafish Tlr4 Coreceptor Md-2
We found a gene for Md-2, a key protein that senses bacterial products, in zebrafish.
Zebrafish Md-2 has functional and physiological similarities to amniote MD-2.
LPS sensing in zebrafish may be more similar to humans than previously thought.
IL-38 Ablation Reduces Local Inflammation and Disease Severity in Experimental Autoimmune Encephalomyelitis
IL-38 ablation reduces the severity of EAE.
Reduced macrophage infiltration and activation are seen in the CNS of IL-38 KO mice with EAE.
IL-38 expression is needed for the glycolytic switch in inflammatory macrophages.
MOLECULAR AND STRUCTURAL IMMUNOLOGY
Structure and Functional Characterization of a Humanized Anti-CCL20 Antibody following Exposure to Serum Reveals the Formation of Immune Complex That Leads to Toxicity
Anti-CCL20 has unexpectedly high binding to C1q and CDC activity.
Injection of anti-CCL20 into humans and monkeys leads to immune complex accumulation.
Rapid deamidation of N100 in the CDR region does not impact Ag binding.
Loss of the Transfer RNA Wobble Uridine–Modifying Enzyme Elp3 Delays T Cell Cycle Entry and Impairs T Follicular Helper Cell Responses through Deregulation of Atf4
tRNA wobble uridine–modifying enzymes promote T cell cycle entry and TFH responses.
Wobble uridine modifications regulate Atf4 signaling in activated T cells.
Overactivated Atf4 delays Elp3-deficient T cell cycle entry and impairs TFH responses.
MUCOSAL IMMUNOLOGY
Prevailing Role of Mucosal Igs and B Cells in Teleost Skin Immune Responses to Bacterial Infection
Strong IgT responds to bacterial infection in fish skin mucosal immunity.
The skin represents a mucosal Ig-inductive site in fish.
NOVEL IMMUNOLOGICAL METHODS
CTLA4-Ig–Based Bifunctional Costimulation Inhibitor Blocks CD28 and ICOS Signaling to Prevent T Cell Priming and Effector Function
A combination of CTLA4-Ig and anti-ICOSL dissolves ongoing GC responses.
Blocking CD28 and ICOS with bispecific Ab should ameliorate IgG-mediated diseases.
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Cover Image
Cover Image
On the cover: Soluble recombinant Ts-serpin mimics the spatial conformation of naturally occurring protein secreted by Trichinella spiralis and specifically recognizes infected serum of T. spiralis to form immune complexes. Xu, N., X. Bai, Y. Liu, Y. Yang, B. Tang, H. N. Shi, I. Vallee, P. Boireau, X. Liu, and M. Liu. 2021. The anti-inflammatory immune response in early Trichinella spiralis intestinal infection depends on serine protease inhibitor–mediated alternative activation of macrophages. J. Immunol. 206: 963–977.
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