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Protection against neonatal respiratory viral infection via maternal treatment during pregnancy with the benign immune training agent OM-85

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.

Mapping the landscape of chromatin dynamics during naïve CD4+ T-cell activation

T-cell activation induces context-specific gene expression programs that promote energy generation and biosynthesis, progression through the cell cycle and ultimately cell differentiation. The aim of this study was to apply the omni ATAC-seq method to characterize the landscape of chromatin changes induced by T-cell activation in mature naïve CD4+ T-cells.

Intracellular growth of Mycobacterium avium subspecies and global transcriptional responses in human macrophages after infection

Mycobacterium avium subsp. avium (Maa) and M. avium subsp. hominissuis (Mah) are environmental mycobacteria and significant opportunistic pathogens.

Airway Epithelial Cells Condition Dendritic Cells to Express Multiple Immune Surveillance Genes

AEC-conditioned DC showed selective upregulation of chemokines that recruit Th1 cells, but minimal change in chemokines linked to Th2 cell recruitment.

Interferon regulatory factor 7 is a major hub connecting interferon-mediated responses in virus-induced asthma exacerbations in vivo

The objective of this study was to elucidate the molecular networks that underpin virus-induced exacerbations in asthmatic children in vivo.

Interferon regulatory factor 7 is a major hub connecting interferon-mediated responses in virus-induced asthma exacerbations in vivo

The objective of this study was to elucidate the molecular networks that underpin virus-induced exacerbations in asthmatic children in vivo.

Acute viral bronchiolitis in infants and young children

Anya Deborah Pat Jones Strickland Holt BSc MSc PhD PhD PhD, DSc, FRCPath, FRCPI, FAA Honorary Research Associate Head, Pregnancy and Early Life

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.

Airway Epithelial Cell Immunity Is Delayed During Rhinovirus Infection in Asthma and COPD

We propose that propensity for viral exacerbations of asthma and COPD relate to delayed expression of epithelial cell innate anti-viral immune genes

Bilateral murine tumor models for characterizing the response to immune checkpoint blockade

This protocol describes bilateral murine tumor models that display a symmetrical yet dichotomous response to immune checkpoint blockade