Acquisition of Innate-Like Microbial Reactivity in Mucosal Tissues during Human Fetal MAIT-Cell Development Innate-like, evolutionarily conserved MR1-restricted mucosa-associated invariant T (MAIT) cells represent a large antimicrobial T-cell subset in humans. Researchers investigated the development of these cells in second trimester human fetal tissues. MAIT cells are rare and immature in the fetal thymus, spleen and mesenteric lymph nodes. [Nat Commun] Full Article Alarmin IL-33 Acts as an Immunoadjuvant to Enhance Antigen-Specific Tumor Immunity Two biologically active isoforms of IL-33 exist that are full-length or mature, but the ability of either isoform to function as a vaccine adjuvant that influences CD4 Th1 or CD8 T cell immune responses is not defined. Researchers showed that both IL-33 isoforms are capable of enhancing potent antigen-specific effector and memory T cell immunity in vivo in a DNA vaccine setting. [Cancer Res] Abstract | Press Release Naive CD4 T-Cell Activation Identifies MS Patients Having Rapid Transition to Progressive MS The authors aimed to determine whether altered naive CD4 T-cell biology contributes to development of disease progression in secondary progressive multiple sclerosis (MS). [Neurology] Abstract | Full Article Alternative Activation of Human Plasmacytoid DCs In Vitro and in Melanoma Lesions: Involvement of LAG-3 To identify molecules that are potentially involved in alternative plasmacytoid dendritic cells (pDC) activation, investigators explored the expression and function of LAG-3 in human pDCs. [J Invest Dermatol] Abstract Inverse Immunological Responses Induced by Allergic Rhinitis and Head and Neck Squamous Cell Carcinoma Data demonstrated that allergic rhinitis and head and neck squamous cell carcinoma induce two distinct immunological processes, indicating an inverse association between the immunological responses seen in patients with allergy and cancer of the upper airway. [PLoS One] Full Article Detection of Circulating B Cells Producing Anti-GPIb Autoantibodies in Patients with Immune Thrombocytopenia Investigators assessed the clinical significance of measuring circulating B cells producing antibodies to GPIb, another major platelet autoantigen. [PLoS One] Full Article Gene Expression Pattern of Treg and TCR Vγ Subfamily T Cells Before and After Specific Immunotherapy in Allergic Rhinitis To further characterize whether γδ T cells could influence T regulatory cell (Treg) in allergic rhinitis (AR) and allergen-specific immunotherapy (SIT), scientists investigated the expression pattern of Treg’s Foxp3 gene and γδ T cell receptor (TCR) Vγ subfamily genes in peripheral blood mononuclear cells of AR patients before and after SIT. [J Transl Med] Full Article |