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Incomplete maturation of immune regulatory functions at birth is antecedent to the heightened risk for severe respiratory infections during infancy. Our forerunner animal model studies demonstrated that maternal treatment with the microbial-derived immune training agent OM-85 during pregnancy promotes accelerated postnatal maturation of mechanisms that regulate inflammatory processes in the offspring airways.
There is now considerable evidence demonstrating that both prenatal and postnatal exposure to particular classes of microbial stimuli can provide beneficial signals during early life immune development, resulting in the protection against future inflammatory disease.
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.
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.
The Pregnancy and Early Life Immunology team's overall research vision is targeted towards understanding immunological development during early life.
This study aims to investigate the cellular and molecular profiles of the immune system in infants at high/low risk for Autism, as determined through clinical assessment.
We are studying immune cells from identical twins of which one suffers and one does not suffer from allergic disease to identify specific mechanisms that may play important roles in disease development.
This study is designed to identify the specific unique immune cell response that occurs in these children with recurrent disease.
Studies in Europe show exposure of pregnant women to high levels of microbial products stimulate immune function maturation in their offspring
The study aims to identify the mechanism for this so that this knowledge can be used to better treat asthma and allergies in both males and females.