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Metabolic dysfunction induced by a high-fat diet modulates hematopoietic stem and myeloid progenitor cells in brown adipose tissue of mice

Brown adipose tissue (BAT) may be an important metabolic regulator of whole-body glucose. While important roles have been ascribed to macrophages in regulating metabolic functions in BAT, little is known of the roles of other immune cells subsets, particularly dendritic cells (DCs). Eating a high-fat diet may compromise the development of hematopoietic stem and progenitor cells (HSPCs)-which give rise to DCs-in bone marrow, with less known of its effects in BAT. We have previously demonstrated that ongoing exposure to low-dose ultraviolet radiation (UVR) significantly reduced the 'whitening' effect of eating a high-fat diet upon interscapular (i) BAT of mice.

Transplacental Innate Immune Training via Maternal Microbial Exposure: Role of XBP1-ERN1 Axis in Dendritic Cell Precursor Programming

We recently reported that offspring of mice treated during pregnancy with the microbial-derived immunomodulator OM-85 manifest striking resistance to allergic airways inflammation, and localized the potential treatment target to fetal conventional dendritic cell (cDC) progenitors. Here, we profile maternal OM-85 treatment-associated transcriptomic signatures in fetal bone marrow, and identify a series of immunometabolic pathways which provide essential metabolites for accelerated myelopoiesis.

Oestrogen amplifies pre-existing atopy-associated Th2 bias in an experimental asthma model

The role of oestrogen in experimental atopic asthma, and guide future research on sex-related variations in atopic asthma susceptibility/intensity

A method for the generation of large numbers of dendritic cells from CD34+ hematopoietic stem cells from cord blood

Neonatal dendritic cells generated form CD34+ cord blood progenitors have a higher inflammatory potential when exposed to viral than bacterial related stimuli

Quantification of Serum Ovalbumin-specific Immunoglobulin E Titre via in vivo Passive Cutaneous Anaphylaxis Assay

We describe herein a highly reproducible in vivo passive cutaneous anaphylaxis assay using Sprague Dawley rats for the quantification of ovalbumin-specific IgE

T-cell responses against rhinovirus species A and C in asthmatic and healthy children

Infections by RV species A and C are the most common causes of exacerbations of asthma and a major cause of exacerbations of other respiratory disease.

UV exposure and protection against allergic airways disease

Asthma is a chronic inflammatory disease of the small and large conducting airway mucosa characterised by Th2 cell immunity.

Pregnancy and Early Life Immunology

The Pregnancy and Early Life Immunology team's overall research vision is targeted towards understanding immunological development during early life.

Targeting the mucosal immune system in a pregnant mouse model to prevent experimental allergic airways disease in the offspring

Studies in Europe show exposure of pregnant women to high levels of microbial products stimulate immune function maturation in their offspring

Mechanisms of IgE sensitization

This project investigates how cells of the immune system respond to substances to cause allergies to help develop new treatments.