Issues
TOP READS
PILLARS OF IMMUNOLOGY
Inflammasomes at the Foundation of Inflammatory Cell Death Complexes
CUTTING EDGE
Cutting Edge: Hepatic Stellate Cells Drive the Phenotype of Monocyte-derived Macrophages to Regulate Liver Fibrosis in Metabolic Dysfunction-associated Steatohepatitis
Macrophages form tight cellular connections with hepatic stellate cells in crown-like structures.
Hepatic stellate cells promote macrophage collagen degradation.
The collagen degrading enzyme cathepsin K is expressed by a subset of macrophages in MASH.
AUTOIMMUNITY
Single-Cell RNA Sequencing Identifies WARS1+ Mesenchymal Stem Cells with Enhanced Immunomodulatory Capacity and Improved Therapeutic Efficacy
Inflammatory cytokine–stimulated UC-MSCs overrepresent WARS1+ subpopulation.
WARS1 improves UC-MSCs’ therapeutic effect in a psoriasis-like mouse model.
IMMUNE REGULATION
CCL22 Induces the Polarization of Immature Dendritic Cells into Tolerogenic Dendritic Cells in Radiation-Induced Lung Injury through the CCR4–Dectin2–PLC-γ2–NFATC2–Nr4a2–PD-L1 Signaling Pathway
Ionizing irradiation increases CCL22 expression in AT2 cells.
CCL22 recruits CCR4-positive DCs to injury sites and induces DC tolerance.
CCL22 promotes the proliferation of Tregs by programming DCs in RILI.
A RORE-dependent Intronic Enhancer in the IL-7 Receptor-α Locus Controls Glucose Metabolism via Vγ4+ γδT17 Cells
Intron 2 of IL-7Rα gene contains a RORE-dependent enhancer, designated CNS9.
CNS9-RORE upregulates IL-7Rα in Vγ4+ γδ T cells in peripheral tissues.
CNS9-RORE mutant mice have few adipose Vγ4+ γδ T cells and show glucose intolerance.
IMMUNE SYSTEM DEVELOPMENT
B Cells of Early-life Origin Defined by RAG2-based Lymphoid Cell Tracking under Native Hematopoietic Conditions
A temporally controllable RAG2-based lymphoid cell-tracking system is developed.
Most adult B-1a cells have perinatal RAG2 expression histories in their native state.
Adult BM PBs/PCs and B-1a cells with perinatal RAG2 histories share IgH genes.
Distinct Localization, Transcriptional Profiles, and Functionality in Early Life Tonsil Regulatory T Cells
Location within tissue drives expression of Treg identity.
Biased Treg to CD8+ T cell interactions occur in extrafollicular space in children.
Distinct transcription and functional properties define pediatric Tregs.
INFECTIOUS DISEASE AND HOST RESPONSE
Obesity Inhibits Alveolar Macrophage Responses to Pseudomonas aeruginosa Pneumonia via Upregulation of Prostaglandin E2 in Male, but Not Female, Mice
Male mice fed a high-fat diet have increased P. aeruginosa in the lung postinfection.
COX-2 and PGE2 are increased in alveolar macrophages of male mice on a high-fat diet.
Nanoparticles inhibiting COX-2 in alveolar macrophages improve bacterial clearance.
Cytotoxic CD4+ T Cells Are Induced during Infection with Chlamydia trachomatis
Nonhematopoietic cells express MHC II in response to IFN-γ from Chlamydia-specific CD4+ Th1 cells.
Chlamydia-specific CD4+ Th1 cells express Granzyme B upon Ag sensing.
Reappraising the Role of T Cell–Derived IFN-γ in Restriction of Mycobacterium tuberculosis in the Murine Lung
T cell–specific IFN-γ deficiency abrogates T cell–mediated control of Mtb burden.
IFN-γ−/− T cells are associated with TB lesion granulocyte abundance and pathology.
T cell–specific IFN-γ deficiency polarizes macrophages toward type 2 immune responses.
INNATE IMMUNITY AND INFLAMMATION
ATP-elicited Cation Fluxes Promote Volume-regulated Anion Channel LRRC8/VRAC Transport cGAMP for Antitumor Immunity
Extracellular ATP and cGAMP synergistically induce STING-dependent IFN-β response.
Extracellular ATP dampens p-S174 on LRRC8A to promote VRAC conductance of cGAMP.
Tumor-derived ATP and cGAMP can be exploited to boost antitumor immunity.
Both IRAK3 and IRAK1 Activate the MyD88–TRAF6 Pathway in Zebrafish
Different IRAK3 variants are present in zebrafish and other bony fish.
Mammalian and zebrafish IRAK3s show different functional features.
Zebrafish IRAK3 activates a milder MyD88–TRAF6 pathway than IRAK1/IRAK4.
Distal Immunization and Systemic Cytokines Establish a Transient Immune Alert State in the Intestine
Distal cutaneous immunization triggers rapid intestinal DC activation and LN homing.
Distal immunization triggers intestinal endothelial permeability and lymph drainage.
Intestinal alert is TNF-α–dependent and generates antigen-specific T cell responses.
TRANSPLANTATION
Endoplasmic Reticulum Stress Response Mediator IRE-1α Promotes Host Dendritic Cells in Graft-versus-Host Disease Development
IRE-1α plays a crucial role in the viability and Ag presentation of recipient DCs following allogeneic HCT.
The IRE-1α inhibitor B-I09 effectively prevents GVHD by suppressing XBP-1s and RIDD activities.
TUMOR IMMUNOLOGY
Identification of Regulatory RNA-Binding Proteins Associated with Immune Infiltration in Laryngeal Squamous Cell Carcinoma
Two RBPs and two AS events were identified in immune infiltration of LSCCI.
The expression of RBM47 in myeloid cells is high; FLNA is expressed in fibroblasts.
The prognosis of laryngeal carcinoma was correlated with FN1 and FBLN2 genes.
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Cover Image
Cover Image
On the cover: Liver macrophages intertwine with stellate cells in a collagen matrix to form hepatic crown-like structures in metabolic liver disease. Stellate cells in red marked by LRAT-cre driven reporter, collagen I staining in green, and F4/80+ macrophages in white. Chan, M. M., L. He, B. N. Finck, J. D. Schilling, and S. Daemen. 2024. Cutting Edge: Hepatic stellate cells drive the phenotype of monocyte-derived macrophages to regulate liver fibrosis in metabolic dysfunction-associated steatohepatitis. J. Immunol. 213: 251–256.
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