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B-cell infiltration distinguishes mucosal from skin patterns of rejection in facial vascularized composite allografts.
Am J Transplant
January 2025
Department of Surgery, Division of Plastic Surgery, Yale School of Medicine, New Haven, CT, USA. Electronic address:
Rejection monitoring in facial vascularized composite allotransplantation (fVCA) traditionally focuses on skin biopsies. However, mucosal rejection frequently presents with more pronounced signs of immune activity. To explore mechanistic differences between skin and mucosal rejection, rejection and non-rejection biopsies from allograft skin and oral mucosa of nine fVCA recipients were retrospectively analyzed using histology, multiplex immunostaining, and gene expression profiling, with peripheral blood mononuclear cells (PBMCs) quantified via mass cytometry (CyTOF).
View Article and Find Full Text PDFMAIT cells modulating the oral lichen planus immune microenvironment: a cellular crosstalk perspective.
Inflamm Res
January 2025
Departments of Oral Medicine, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, Guangdong Province, China.
Mucosal-associated invariant T (MAIT) cells, a type of T lymphocytes with innate-like characteristics, are crucial in bridging innate and adaptive immunity. When activated, MAIT cells release various inflammatory molecules and swiftly respond to antigens. Notably, numerous studies highlight the significant impact of MAIT cells on tumors and various immune disorders by influencing the immune microenvironment.
View Article and Find Full Text PDFNeutrophil extracellular traps promote pre-metastatic niche formation in the omentum by expanding innate-like B cells that express IL-10.
Cancer Cell
January 2025
Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. Electronic address:
Disseminated cancer cells in the peritoneal fluid often colonize omental fat-associated lymphoid clusters but the mechanisms are unclear. Here, we identify that innate-like B cells accumulate in the omentum of mice and women with early-stage ovarian cancer concomitantly with the extrusion of chromatin fibers by neutrophils called neutrophil extracellular traps (NETs). Studies using genetically modified NET-deficient mice, pharmacologic inhibition of NETs, and adoptive B cell transfer show that NETs induce expression of the chemoattractant CXCL13 in the pre-metastatic omentum, stimulating recruitment of peritoneal innate-like B cells that in turn promote expansion of regulatory T cells and omental metastasis through producing interleukin (IL)-10.
View Article and Find Full Text PDFNeonatal T cells unleash innate powers to combat congenital cytomegalovirus infection.
J Clin Invest
January 2025
Approximately 1 in 200 newborns worldwide are affected by congenital cytomegalovirus (CMV). Most of these cases are asymptomatic due to successful control of the infection by the newborn's immune system. In this issue of the JCI, Semmes et al.
View Article and Find Full Text PDFEvaluation of the association of mucosa-associated invariant T (MAIT) cells with childhood asthma.
Turk J Med Sci
December 2024
Division of Pediatric Pulmonology, Department of Pediatrics, Faculty of Medicine, İstinye University, İstanbul, Turkiye.
Background/aim: Innate-like T lymphocytes are a recently defined group of T cells comprising mainly mucosa-associated invariant T (MAIT) cells. The relationship between MAIT cells and childhood asthma is controversial. In this study, we aimed to determine the role of MAIT cells in patients with allergic asthma (AA) and nonallergic asthma (NAA).
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