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More Than Effects in Skin: Ultraviolet Radiation-Induced Changes in Immune Cells in Human BloodCells of the skin and circulation are in constant two-way communication. Following exposure of humans to sunlight or to phototherapy, there are alterations in the number, phenotype and function of circulating blood cells.
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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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UVB phototherapy for participants with an early form of multiple sclerosisMatt Prue Stephanie Cooper Hart Trend BCA Marketing, BSc Statistics and Applied Statistics, PhD BSc (Hons) MSc PhD BSc PhD Manager, Biostatistics
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Exposure to Solar UVR Suppresses Cell-Mediated Immunization Responses in Humans: The Australian Ultraviolet Radiation and Immunity StudyHigher UVR exposure at antigen sensitization was associated with a reduced delayed-type hypersensitivity response and altered T helper type 17 kinetics
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Investigating the roles of regulatory T cells, mast cells and interleukin-9 in the control of skin inflammat roles of regulatory T cells, mast cells and interleukin-9 in the control of skin inflammation by vitamin D. Arch Dermatol Res. 2018;310(3):221-30.We investigated the ability of topical 1,25(OH)2D to suppress contact dermatitis through an IL9 dependent process, examining mast cells and IL9 secreting cells.
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A randomised, controlled clinical trial of narrowband UVB phototherapy for clinically isolated syndrome: The PhoCIS studyThis study provides a basis for further studies to determine if there are any benefits of the therapeutic effects of narrowband UVB radiation on MS progression
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1,25-dihydroxyvitamin D3 enhances the ability of transferred CD4+ CD25+ cells to modulate T helper type 2-driven asthmatic responsesThe severity of allergic diseases may be modified by vitamin D. However, the immune pathways modulated by the active form of vitamin D, 1,25-dihydroxyvitamin D.
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UV Irradiation of Skin Enhances Glycolytic Flux and Reduces Migration Capabilities in Bone Marrow–Differentiated Dendritic CellsA systemic immunosuppression follows UV irradiation of the skin of humans and mice.
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High-dose intramuscular Vitamin D provides long-lasting moderate increases in serum 25-hydroxVitamin D levels and shorter-Term changes in plasma calciumIntramuscular injection of a large bolus of Vitamin D effectively increases serum 25-hydroxyVitamin D levels without evidence of metabolic abnormality.
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Evolving Identification of Blood Cells Associated with Clinically Isolated Syndrome: Importance of Time since Clinical Presentation and Diagnostic MRIThis study aimed to identify a CIS peripheral blood signature that may provide clues for potential immunomodulatory approaches early in disease