Mucosal Immunology

Neutrophil ADAM10 promotes migration and inflammation in ARDS by modulating adhesion and chemokine signaling. Anika Fuhr

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Mucosal Immunol. 2025 Sep 12:S1933-0219(25)00093-5. doi: 10.1016/j.mucimm.2025.09.003. Online ahead of print. ABSTRACT Acute respiratory distress syndrome (ARDS) is characterized by excessive neutrophil recruitment, endothelial barrier dysfunction, and persistent inflammation. A Disintegrin and Metalloproteinase 10 (ADAM10) regulates leukocyte trafficking by cleaving adhesion molecules such as VE-cadherin and JAM-A, but its role in neutrophil-driven lung injury remains … Read more

Single cell map of the adult female mouse urethra reveals epithelial and stromal macrophages with distinct functional identities. None Jasmine

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Mucosal Immunol. 2025 Sep 2:S1933-0219(25)00091-1. doi: 10.1016/j.mucimm.2025.09.001. Online ahead of print. ABSTRACT Epithelial linings at mucosal sites act in concert with resident immune cells to direct host defense. The epithelial lining of the urethra is an understudied mucosal barrier with emerging roles in antimicrobial defense during urinary tract infections. Here, we present a comprehensive cellular … Read more

CREB-mediated sensing of bacterial membrane vesicles unveils a conserved host defense pathway. Saifei Wang

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Mucosal Immunol. 2025 Aug 27:S1933-0219(25)00090-X. doi: 10.1016/j.mucimm.2025.08.007. Online ahead of print. ABSTRACT Bacterial membrane vesicles (MVs) are critical mediators of virulence factor delivery and intercellular communication, yet the mechanisms by which hosts detect and respond to these vesicles remain poorly characterized. Through transcriptional profiling, we found that MVs derived from the non-lethal pathogenic Erwinia carotovora … Read more

Expansion of genital Tregs reduces neutrophil influx and maintains mucosal barrier integrity during inflammatory bacteria challenge. Faisal Nuhu

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Mucosal Immunol. 2025 Aug 21:S1933-0219(25)00089-3. doi: 10.1016/j.mucimm.2025.08.006. Online ahead of print. ABSTRACT Genital inflammation is associated with increased HIV risk. We previously found that endocervical Tregs correlated with decreased genital inflammation and reduced HIV target cells. IL-2 induces Tregs, and efforts to potentiate its regulatory activities clinically are ongoing. In this study, intraperitoneal administration of … Read more

Leukotriene B4 regulates T cell recognition and control of MCMV in mucosal tissues. Lauren E Springer

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Mucosal Immunol. 2025 Aug 18:S1933-0219(25)00085-6. doi: 10.1016/j.mucimm.2025.08.002. Online ahead of print. ABSTRACT Lipid mediators play important, yet poorly understood roles in regulating immune responses. Cytomegalovirus (CMV) is a herpesvirus that persists in mucosal tissues. Prior work suggests that leukotrienes, a class of inflammatory lipid mediators, contribute to viral control. Infection with murine (M)CMV altered leukotriene … Read more

Clostridioides difficile toxin A and toxin B inhibit toxin-specific adaptive immune responses through glucosyltransferase-dependent activity. Jeffrey R Maslanka

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Mucosal Immunol. 2025 Aug 16:S1933-0219(25)00087-X. doi: 10.1016/j.mucimm.2025.08.004. Online ahead of print. ABSTRACT Clostridioides difficile colonizes the gastrointestinal tract and secretes two virulence factors: toxin A (TcdA) and toxin B (TcdB). Protective immunity against C. difficile infection is limited as patients are susceptible to multiple rounds of recurrent infections. The factors determining whether immunity to TcdA … Read more

T-cell immunity against influenza virus does not require Th1 or Th17 master regulator transcription factors. Kunal Dhume

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Mucosal Immunol. 2025 Aug 15:S1933-0219(25)00088-1. doi: 10.1016/j.mucimm.2025.08.005. Online ahead of print. ABSTRACT Transcriptional programming needed for CD4 T cell immunity against influenza A virus (IAV) is unclear. Most antiviral CD4 T cells fit Th1 criteria, but cells unable to develop Th1 identity, through deletion of the transcription factors T-bet and Eomesodermin, remain protective. These double … Read more

C10ORF99 (GPR15L) increases susceptibility to colitis and colitis-induced colorectal cancer via GPR15-independent mechanisms, while mediating GPR15-dependent T cell migration to the large intestine. Gerald J O’Connor

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Mucosal Immunol. 2025 Aug 13:S1933-0219(25)00084-4. doi: 10.1016/j.mucimm.2025.08.001. Online ahead of print. ABSTRACT GPR15 is a homing receptor important for T cell migration to the large intestine, the primary site of inflammation in ulcerative colitis. Both GPR15 and its ligand, C10ORF99, represent potential therapeutic targets for the treatment of IBD; however, the roles of C10ORF99 in … Read more

Junctional epithelial Plakoglobin facilitates intestinal inflammation by p38MAPK-dependent activation of the inflammasome. Matthias Kelm

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Mucosal Immunol. 2025 Aug 13:S1933-0219(25)00086-8. doi: 10.1016/j.mucimm.2025.08.003. Online ahead of print. ABSTRACT Desmosomes play an underexplored role in intestinal homeostasis and are linked to the pathogenesis of inflammatory bowel diseases. We found a novel function of the desmosomal plaque protein Plakoglobin (JUP) in initiating the innate immune response to facilitate intestinal inflammation. Tissue samples from … Read more

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