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Atopy-related immune profiles are subject to genetic influence as evaluated using school-aged twin pairsThe interaction of genetic and environmental contributions to immunological traits and their association with atopic disease remain unclear. Flow cytometry and in vitro cytokine responses were used to characterize immune profiles from 93 school-aged twin pairs. Using an established twin pair analytical strategy, the genetic and environmental influences on immunological traits were evaluated, along with their association with atopy. Our findings suggest strong genetic influence on several traits, particularly B cell abundance. In contrast, cytokine responses from in vitro stimulations appeared mainly shaped by environmental exposures.
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Reduced Type-I Interferon by Plasmacytoid Dendritic Cells and Asthma in School-Aged ChildrenAllergic sensitization and reduced ability to respond to viral infections may contribute to virus-induced wheeze and asthma development in young children. Plasmacytoid dendritic cells (pDC) are rare immune cells that produce type I interferons (IFN-I) and play a key role in orchestrating immune responses against viruses.
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Impaired interferon response in plasmacytoid dendritic cells from children with persistent wheezeImpaired interferon response and allergic sensitization may contribute to virus-induced wheeze and asthma development in young children. Plasmacytoid dendritic cells play a key role in antiviral immunity as critical producers of type I interferons.
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Associations between the human immune system and gut microbiome with neurodevelopment in the first 5 years of life: A systematic scoping reviewThe aim of this review was to map the literature assessing associations between maternal or infant immune or gut microbiome biomarkers and child neurodevelopmental outcomes within the first 5 years of life. We conducted a PRISMA-ScR compliant review of peer-reviewed, English-language journal articles.
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Genetic variants of TLR4, including the novel variant, rs5030719, and related genes are associated with susceptibility to clinical malaria in African childrenMalaria is a deadly disease caused by Plasmodium spp. Several blood phenotypes have been associated with malarial resistance, which suggests a genetic component to immune protection.
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Toward homeostasis: Regulatory dendritic cells from the bone marrow of mice with inflammationInflammatory mediators from peripheral tissues may control dendritic cell (DC) development in the bone marrow.
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Nasal Delivery of Haemophilus haemolyticus Is Safe, Reduces Influenza Severity, and Prevents Development of Otitis Media in MiceDespite vaccination, influenza and otitis media (OM) remain leading causes of illness. We previously found that the human respiratory commensal Haemophilus haemolyticus prevents bacterial infection in vitro and that the related murine commensal Muribacter muris delays OM development in mice. The observation that M muris pretreatment reduced lung influenza titer and inflammation suggests that these bacteria could be exploited for protection against influenza/OM.
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Developing a Standardised National Model of Care for Treatment of Peanut Allergy in Infants: The ADAPT Peanut Oral Immunotherapy ProgramPeanut allergy is the most common food allergy in Australian school-aged children and is rarely outgrown. Access to oral immunotherapy (OIT), a disease-modifying treatment for food allergy, is limited in many regions of the world, including Australia.
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Allergen Specific IgE is a Stronger Predictor of Remission Following Peanut Oral Immunotherapy Than Age in Children Aged 1–10 YearsRemission is the desired outcome following OIT as it allows individuals to discontinue treatment and eat the allergen freely. Early initiation of OIT in infants and toddlers has been embraced as an approach to increase the likelihood of remission. However, there is no high-quality evidence supporting younger age as an independent factor driving remission; available studies are limited by small samples of younger subjects and lack of adjustment for confounding covariates, particularly peanut-specific IgE (sIgE) levels which is closely cor
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Boosting airway T-regulatory cells by gastrointestinal stimulation as a strategy for asthma controlThe hallmark of atopic asthma is transient airways hyperresponsiveness (AHR) preceded by aeroallergen-induced Th-cell activation.