Exosomes in Allergic Airway Diseases
AbstractPurpose of ReviewThis review will cover what is known regarding exosomes and allergy, and furthermore discuss novel mechanism of exosome-mediated immune modulation and metabolic regulation via the transfer of mitochondria.Recent FindingsExosomes are nano-sized extracellular vesicles (EVs) derived from the endosome that play a direct role in governing physiological and pathological conditions by transferring bioactive cargo such as proteins, enzymes, nucleic acids (miRNA, mRNA, DNA), and metabolites. Recent evidence suggest that exosomes may signal in autocrine but, most importantly, in paracrine and endocrine manner, being taken up by neighboring cells or carried to distant sites. Exosomes also mediate immunogenic responses, such as antigen presentation and inflammation. In asthma and allergy, exosomes facilitate cross-talk between immune and epithelial cells, and drive site-specific inflammation through the generation of pro-inflammatory mediators like leukotrienes. Recent studies suggest that myeloid cell-generated exosomes transfer mitochondria to lymphocytes.SummaryExosomes are nano-sized mediators of the immune system which can modulate responses through antigen presentation, and the transfer of pro- and anti-inflammatory mediators. In addition to conventional mechanisms of immune modulation, exosomes may act as a novel courier of functional mitochondria that is capable of modulating the recipient cells bioenergetics, resulting in altered cellular responses. The ...
ConclusionsThe benefits of FENO-based management are attenuated among obese mothers and those with excess GWG, indicating the importance of weight management in contributing to improved asthma management in pregnancy.
This article explores the most relevant issues facing the role of e-Health and its sub-category—mobile health (mHealth)—in promoting treatment adherence in childhood asthma, focusing on current evidence gaps and limitations, and future research perspectives.
ConclusionsPrognosis in patients with CRSwNP was inferior to that in patients with CRSsNP. Asthma was the only factor that increased the chance of recurrence in patients with either CRSsNP or CRSwNP.
This study supports a positive benefit-risk profile for long-term mepolizumab treatment in these patients.
Publication date: Available online 14 August 2019Source: The Journal of Allergy and Clinical Immunology: In PracticeAuthor(s): Maxime Cormier, Simone Chaboillez, Catherine Lemière
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