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FcgammaRIIb Expression Is Decreased on Naive and Marginal Zone-Like B Cells From Females With Multiple SclerosisB cells are critical to the development of multiple sclerosis (MS), but the mechanisms by which they contribute to the disease are poorly defined. We hypothesised that the expression of CD32b (FcγRIIb), a receptor for the Fc region of IgG with inhibitory activities in B cells, is lower on B cell subsets from people with clinically isolated syndrome (CIS) or MS. CD32b expression was highest on post-naive IgM+ B cell subsets in healthy controls. For females with MS or CIS, significantly lower CD32b expression was identified on IgM+ B cell subsets, including naive and IgMhi MZ-like B cells, when compared with control females. Lower CD32b expression on these B cell subsets was associated with detectable anti-Epstein Barr Virus viral capsid antigen IgM antibodies, and higher serum levels of B cell activating factor. To investigate the effects of lower CD32b expression, B cells were polyclonally activated in the presence of IgG immune complexes, with or without a CD32b blocking antibody, and the expression of TNF and IL-10 in B cell subsets was assessed.
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In “high-risk” infants with sufficient vitamin d status at birth, infant vitamin D supplementation had no effect on allergy outcomes: A randomized controlled trialEarly infancy oral vitamin D supplementation does not appear to reduce the development of early childhood allergic disease
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IgG3 + B cells are associated with the development of multiple sclerosisWe have identified previously uncharacterised subsets of IgG3 + B cells and shown them to correlate with autoimmune attacks on the central nervous system
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Low-dose UV radiation before running wheel access activates brown adipose tissueWhen combined with physical activity, low-dose UVR may more effectively limit adiposity and modulate metabolic and immune pathways in iBAT
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Differences in control by UV radiation of inflammatory airways disease in naïve and allergen pre-sensitised miceExposure of skin to UV radiation (UVR) prior to allergen exposure can inhibit inflammatory airways disease in mice by reducing effector CD4+ T cells in both...
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Vitamin D and atopy and asthma phenotypes in children: a longitudinal cohort studyVitamin D has been linked in some studies with atopy- and asthma-associated phenotypes in children with established disease,but its role in disease inception...
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Ultraviolet irradiation of mice reduces the competency of bone marrow-derived CD11c+Direct UV irradiation of dendritic cells and Langerhans cells reduces their Ag presenting ability. However, the effects of UV on CD11c(+) cells located...
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The anti-inflammatory effects of interleukin-4 are not mediated by suppressor of cytokine signalling-1 (SOCS1)While it is known that the anti-inflammatory effects of interleukin (IL)-4 require new protein synthesis, the exact mechanisms by which IL-4 suppresses the prod
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Lentivirus-mediated gene transfer of interleukin 10 to the ovine and human corneaGene transfer to a donor cornea ex vivo can modulate corneal graft failure in experimental animal models. We compared a lentiviral vector (LV) carrying...
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UV exposure and protection against allergic airways diseaseAsthma is a chronic inflammatory disease of the small and large conducting airway mucosa characterised by Th2 cell immunity.