In this review, we provide an overview of food allergy genetics and epigenetics aimed at clinicians and researchers. This includes a brief review of the current understanding of genetic and epigenetic mechanisms, inheritance of food allergy, as well as a discussion of advantages and limitations of the different types of studies in genetic research. We specifically focus on the results of genome‐wide

RationaleBiologics are becoming increasingly important in the management of severe asthma. However, little is known about the systemic immunometabolic consequences of Th2 response blockage.ObjectivesTo provide a better immunometabolic understanding of the effects of mepolizumab and omalizumab treatments by identifying potential biomarkers for monitoring.MethodsIn this exploratory longitudinal study

As cholinergic innervation is a major contributor to increased vagal tone and mucus secretion, inhaled long‐acting muscarinic antagonists (LAMA) are a pillar for the treatment of chronic obstructive pulmonary disease and asthma. By blocking the muscarinic receptors expressed in the lung, LAMA improve lung function and reduce exacerbations in asthma patients who remained poorly controlled despite treatment

BackgroundLittle is known about the genetics of food allergy (FA) to various allergens and the heterogeneity of FA in adults.ObjectiveWe aimed to investigate genetic susceptibility to FA in an adult population and to assess the association between secondary FA and allergic rhinitis (AR).MethodsFA and allergen‐specific FA were defined based on in‐depth questionnaires and a previously published FA algorithm

BackgroundDouble‐blind placebo‐controlled food challenge (DBPCFC) is widely regarded as the “gold standard” to diagnose food allergy. Maximum efforts are made to reduce bias, yet DBPCFCs are costly, time‐, and resource‐intensive. Less demanding open food challenges are increasingly used in clinical practice. However, recommendations regarding the use of these challenges are based on low certainty of

Introduction and ObjectivesTralokinumab—a biological that specifically targets interleukin‐13—is one of the newer advanced systemic treatments for patients with moderate‐to‐severe atopic dermatitis (AD). Although safety and efficacy have been shown in phase‐III clinical trials, daily practice data are needed. Therefore, the aim of this study was to evaluate 28‐week safety and effectiveness, serum proteins

BackgroundPeanut allergy is a common, life‐threatening food allergy in children. We evaluated whether dupilumab, which blocks the activity of interleukin (IL)‐4/IL‐13, enhances the efficacy of oral immunotherapy (OIT) AR101 in pediatric patients with peanut allergy.MethodsA Phase II, multicenter, randomized, double‐blind study was conducted in the USA (NCT03682770) in pediatric patients (6–≤ 17 years

BackgroundIn patients with severe asthma, treatment with anti‐interleukin‐5 (IL‐5) biologics can lead to a reduction in fractional exhaled nitric oxide (FeNO) in some patients. The clinical implications of varying FeNO responses to anti‐IL‐5 biologics remain unclear. This study aims to categorise patients based on their FeNO response to anti‐IL‐5 biologics and evaluate the association of these categories

BackgroundPeanut allergy is a potentially life‐threatening food allergy in children. This study explored whether dupilumab, a human monoclonal immunoglobulin (Ig)G4 antibody that blocks the activity of interleukin (IL)‐4/IL‐13, improved safety and desensitization to peanut exposure in children with peanut allergy.MethodsA Phase II, 24‐week, multicenter, single‐arm, open‐label, proof‐of‐concept study

BackgroundDysfunction of the skin barrier is regarded as a key event in the initiation and progression of inflammatory skin diseases. In many cases of allergic contact dermatitis (ACD), epidermal‐resident memory CD8+ T (TRM) cells play a central role in the immune response to contact allergens. However, if and how allergen‐specific CD8+ TRM cells affect the expression of skin barrier molecules is not

BackgroundMacrophages, one of the most abundant immune cells in the lung, have drawn great attention in allergic asthma. Currently, most studies emphasize alternative activated (M2) polarization bias. However, macrophage function in allergic asthma is still controversial. Interleukin (IL)‐9 contributes to the development and pathogenesis of allergic airway inflammation. We sought to investigate the

The high prevalence of allergic diseases reached over the last years is attributed to the complex interplay of genetic factors, lifestyle changes, and environmental exposome. Allergen‐specific immunotherapy (AIT) is the single therapeutic strategy for allergic diseases with the potential capacity to modify the course of the disease. Our knowledge of the mechanisms involved in allergy and successful

Chronic rhinosinusitis (CRS) is a clinical syndrome defined by typical sinonasal symptoms persisting for at least 12 weeks. CRS is divided into two distinct phenotypes, CRS with nasal polyps (CRSwNP) and without (CRSsNP). The aim of the review is to provide an update on the current knowledge in CRS endotypes. The prevailing hypothesis regarding the pathogenesis of CRS suggests that dysfunctional interactions

IntroductionPatients with food allergies need personalized information on their risk of reaction in “real‐life” situations. This multicentric study aimed to investigate the link during accidental reactions between the nature and amount of food allergens consumed in “real‐life situation” and the severity of the symptoms.MethodsPatients were prospectively recruited from December 1, 2020, to December

BackgroundPulmonary neuroendocrine cells (PNEC) are rare airway epithelial cells that have recently gained attention as potential amplifiers of allergic asthma. However, studying PNEC function in humans has been challenging due to a lack of cell isolation methods, and little is known about human PNEC function in response to asthma‐relevant stimuli. Here we developed and characterized an in vitro human

BackgroundDiagnosis of allergies is mostly based on the patient's clinical history and allergen provocation tests. Determination of specific IgE (sIgE) profiles can be performed to support allergy diagnosis. This is commonly done in vivo by the skin prick test or in vitro with automated systems. Several platforms exist to quantify sIgE levels, but all these methods require access to specific instruments

BackgroundBlocking IL‐13 is highly efficacious in patients with Th2‐biased atopic dermatitis (AD), and recent clinical data have highlighted that targeting the T cell costimulatory molecules OX40 and OX40L (TNFSF4) holds promise for future treatment of AD.AimWe asked whether targeting another T cell costimulatory molecule, CD30L (TNFSF8), might also be a possible treatment option in AD.MethodsSingle‐cell

BackgroundAnti‐inflammatory effects of incretin signaling through the glucagon‐like peptide‐1 receptor (GLP‐1R) and the glucose‐dependent insulinotropic polypeptide receptor (GIPR) in mice have been reported. Therefore, we hypothesized that signaling through the endogenous GLP‐1R and the GIPR individually decreases allergic airway inflammation and that the combination of GLP‐1R and GIPR signaling together

BACKGROUND Intranasal antihistamines (INAH), corticosteroids (INCS), and their fixed combinations (INAH+INCS) are one of the cornerstones of the treatment of allergic rhinitis (AR). We performed a systematic review and network-meta-analysis comparing the efficacy and safety of INAH, INCS, and INAH+INCS in patients with AR. METHODS We searched four electronic bibliographic databases and three clinical

BackgroundAllergen immunotherapy (AIT) aims at modulating the immune response by administration of allergen preparations at regular intervals over several years (1). For subcutaneous AIT (SCIT), the treatment is initiated with a dose escalation phase followed by a maintenance dose administration. Over the last decade, there has been a trend towards shortening dose escalation regimens to increase patient

BackgroundChronic rhinosinusitis with nasal polyps (CRSwNP) is an upper respiratory disease characterized by persistent inflammation of the nasal mucosa. However, the mechanism of abnormal Mucin5AC expression by CRSwNP epithelial cells is not fully understood.ObjectiveWe investigated the potential role of yes‐associated protein (YAP) underlying the mechanism of excessive epithelial Mucin5AC expression

BackgroundSevere cutaneous adverse reactions (SCARs) mediated by cytotoxic T lymphocytes are a series of life‐threatening conditions with a mortality of 4%–20%. The clinical application of tumor necrosis factor‐alpha (TNF‐α) antagonist improves the outcome of some SCARs patients; however, this is complicated by the elusive and varied immunopathogenesis.AimTo investigate whether IgE antibody responses

BackgroundSubcutaneous immunotherapy has emerged as an effective option for treating allergic diseases. Here, we assessed the clinical impact of the mannan‐conjugated birch pollen polymerized allergoid T502 in birch pollen‐induced allergic rhinoconjunctivitis.MethodsIn this prospective, randomized, double‐blind placebo‐controlled phase III trial, 298 birch pollen–allergic adult patients were treated

Although airway remodeling in severe and/or fatal asthma is stil considered irreversible, its individual components as a cause of clinical symptoms and/or lung function changes remain largely unknown. While inhaled glucocorticoids have not consistently been shown to affect airway remodeling, biologics targeting specific pathways of airway inflammation have been shown to improve lung function, mucus

BACKGROUND Humans are subjected to various environmental stressors (bacteria, viruses, pollution) throughout life. As such, an inherent relationship exists between the effect of these exposures with age. The impact of these environmental stressors can manifest through DNA methylation (DNAm). However, whether these epigenetic effects selectively target genes, pathways, and biological regulatory mechanisms

IntroductionBasophil activation test (BAT) might be an alternative to nasal allergen challenge (NAC) to identify the allergic etiology in rhinitis patients. Here, we investigate the diagnostic performance of BAT for allergic phenotypes of rhinitis.MethodsRhinitis patients and healthy controls were subjected to NAC with Dermatophagoides pteronyssinus (DP), Alternaria alternata (AA), grass (GP) and olive