Mucosal Immunology

Mucosal Immunol. 2026 Jun 11:100362. doi: 10.1016/j.mucimm.2026.100362. Online ahead of print. ABSTRACT BACKGROUND: Durable protection against viral infections relies on tissue-resident memory T (TRM) cells at pathogen entry sites. The oral cavity is a critical mucosal barrier frequently exposed to viral pathogens; however, the phenotypic characteristics and spatial organization of virus-specific T cells in the … Read more

Mucosal Immunol. 2026 Jun 11:100361. doi: 10.1016/j.mucimm.2026.100361. Online ahead of print. ABSTRACT Ulcerative colitis (UC) is characterized by chronic mucosal inflammation, recurrent epithelial injury, and impaired colonic mucosal wound healing. While WNT/β-catenin dysregulation has been reported in UC, the mechanisms of such abnormalities remain unclear. To investigate epithelial intrinsic alterations associated with UC, we performed … Read more

Mucosal Immunol. 2026 Jun 3:100356. doi: 10.1016/j.mucimm.2026.100356. Online ahead of print. ABSTRACT While intestinal tuft cells are well known to promote type 2 immunity, their role in inflammatory bowel disease (IBD) remains unclear. Here, we show that tuft cells are reduced in the distal intestine of pediatric IBD patients and that tuft cell-deficient mice exhibited … Read more

Mucosal Immunol. 2026 Jun 1:100355. doi: 10.1016/j.mucimm.2026.100355. Online ahead of print. ABSTRACT Intraepithelial lymphocytes (IELs) are among the largest lymphocyte populations in the body and play a crucial role in maintaining the integrity of epithelial barriers at mucosal sites, which are highly immunostimulatory. Therefore, understanding how these cells are generated, localized within the epithelium, and … Read more

Mucosal Immunol. 2026 May 31:100352. doi: 10.1016/j.mucimm.2026.100352. Online ahead of print. ABSTRACT Lung mucosal immunity must balance effective antimicrobial defense with tightly controlled inflammatory responses to maintain pulmonary homeostasis. Although sex differences in respiratory disease susceptibility are well documented, the developmental origins of these differences and their modulation by prenatal environmental exposures remain poorly defined. … Read more

Mucosal Immunol. 2026 May 30:100354. doi: 10.1016/j.mucimm.2026.100354. Online ahead of print. ABSTRACT Glucocorticoid-refractory asthma is a severe disease type linked to both T helper type 2 (T2) high and T2 low, neutrophil-high asthma endotypes, but the mechanisms governing glucocorticoid resistance are largely unknown. We show that glucocorticoid-resistant mouse allergic airway disease is linked to airway … Read more

Mucosal Immunol. 2026 May 30:100353. doi: 10.1016/j.mucimm.2026.100353. Online ahead of print. ABSTRACT Pregnancy is an immunological marvel allowing intimate approximation between genetically discordant tissues of maternal and fetal origin. Shared immunity across the maternal-fetal dyad including intact cells of maternal and fetal origin establishing microchimerism in both individuals after parturition and the importance of vertically … Read more

Mucosal Immunol. 2026 May 23:100351. doi: 10.1016/j.mucimm.2026.100351. Online ahead of print. ABSTRACT Although systemic allergen-specific IgE is an essential biomarker for allergic rhinitis (AR), its mechanistic contribution to symptom development remains unclear. Here, using mouse models, we investigated how systemic antigen-specific IgE influences AR symptoms and local type 2 inflammation. Mice were adoptively sensitized with … Read more

Mucosal Immunol. 2026 May 16:100349. doi: 10.1016/j.mucimm.2026.100349. Online ahead of print. ABSTRACT Colonic immune homeostasis is critically maintained by regulatory T (Treg) cells. Here, we identify SUMO-specific peptidase 1 (SENP1) as an important regulator of colonic Treg function and intestinal immune homeostasis. Treg-specific Senp1 deletion does not impair thymic Treg development, but selectively disrupts the … Read more

Mucosal Immunol. 2026 May 16:100350. doi: 10.1016/j.mucimm.2026.100350. Online ahead of print. ABSTRACT Human enteric α-defensin 5 (HD5) is an antimicrobial peptide and a key effector of intestinal mucosal innate immunity. Paradoxically, HD5 has also been shown to enhance Shigella infection by inducing filopodial-like extensions via activation of the P2Y11 receptor. However, the broader physiological significance … Read more