Allergic Rhinitis Clinical Trial
Official title:
Crosstalk of Nasal Epithelium and Mucus in the Immune Response to Allergic Rhinitis: an Integrative Omics Approach to Measure Abundance Changes in Protein and RNA Expression
Nasal mucus and nasal epithelium are the first defense barriers against allergens. Various proteins are found in nasal mucus that play a role in allergic rhinitis and reflect immune response to allergen exposure. The difference in the proteomic profile of allergic rhinitis patients and healthy controls can give insight about how the response works and which proteins could lead to either enhanced immune reaction or to defense response like augmentation of epithelial integrity. It is also known that the airway epithelium plays a crucial role in the regulation of airway immune responses and inflammation. Gene expression profiling is widely used to analyses complex disease. For the airway epithelium gene expression profile in diseased and healthy state as well as in baseline and provoked state can clarify the mechanism of defense reactions and the course of inflammatory processes. Nasal mucus proteins as consequence of different gene expression can be seen as part of the end products of this complex mechanisms and interactions between allergens and the epithelium. Nasal mucus proteins have different origins and production sites and gene expression does not necessarily result in functional metabolites. The aim of this proposed project is to try and analyze in a holistic proteomic approach the response to allergen on a genetic/genomic level from the nasal epithelium to protein/proteomic level in nasal mucus. This analysis gives us insight of how the different gene expression profiles result in a protein expression and further clarifies which proteins are directly originate from the epithelium and which are result of plasma exudation or underlie different regulatory processes. From allergic rhinitis patients and healthy controls nasal mucus, nasal mucosa, and serum will be obtained. Nasal mucus will be collected with a special suction device equipped with a mucus trap from the middle meatus under endoscopic control without touching the mucosa. Nasal mucosa will be obtained through nasal brushes under local anesthesia and put into primary culture. Serum prepared from blood samples. Patients with grass or tree pollen allergy will be included and allergic state will be determined by skin prick tests and RAST (Radio-Allergo-Sorbent-test). The aimed for sample size will be 15 patients per group. Samples will be obtained in and out of pollen season. Allergic patients will fill out a symptom score and samples will be taken when symptoms are strong (in pollen season) and disappeared (out of pollen season). For healthy controls the time point of sample taking will be correlated to the allergic rhinitis patients to have a similar pollen exposure. Nasal mucus will be sent for Liquid Chromatography Tandem mass spectrometry for proteomic analysis and from nasal epithelial cells RNA will be isolated and send for Microarray analysis. By an integrative omics approach gene and protein expression will be correlated and cross talk between nasal mucus and epithelium will be analysed. The identification of key genes or gene clusters leads to further identification of key proteins or protein groups as biomarkers that could serve for novel therapeutic or diagnostic strategies in allergic rhinitis. The integrative omic approach downsizes the potential candidates since the focus lies on epithelial gene expression and their protein products and excludes proteins that are highly abundant without direct correlation to allergen exposure e.g. through plasma exudation. Moreover, the genomic and proteomic analysis could explain in more detail how the barrier of mucus and epithelium are affected by allergen exposure. The comparison to healthy controls and the longitudinal changes throughout the season further sheds light on how these individuals react upon allergen exposure and how this could lead to prevention of sensitization.
n/a
Status | Clinical Trial | Phase | |
---|---|---|---|
Recruiting |
NCT05080322 -
Efficacy and Safety of On-demand and Continuous Administration of Nasal Spray in the Treatment of Allergic Rhinitis
|
Phase 4 | |
Recruiting |
NCT06028490 -
A Study of IL4Rα Monoclonal Antibody in Patients With Uncontrolled Seasonal Allergic Rhinitis.
|
Phase 2 | |
Completed |
NCT04388358 -
Traditional Chinese Medicine for the Treatment of Perennial Allergic Rhinitis on Gut Microbiota and Immune-modulation
|
N/A | |
Recruiting |
NCT04202263 -
Assessment of Suppression of Cutaneous Allergic Responses and Pruritis by Topical Minocycline
|
Phase 2 | |
Completed |
NCT04078009 -
Standardising Nasal Allergen Challenge in Adult With Hay Fever
|
N/A | |
Completed |
NCT03644680 -
Changes in Adaptive Immune Responses and Effector Cell Responses Upon Nasal Allergen Exposure - a Pilot Study
|
N/A | |
Completed |
NCT04541004 -
Adolescent Mite Allergy Safety Evaluation
|
Phase 3 | |
Recruiting |
NCT05378594 -
HDM and Silver Birch NAC Standardisation
|
N/A | |
Not yet recruiting |
NCT05684380 -
Efficacy and Safety of MAZ-101 in the Treatment of Persistent Allergic Rhinitis (PER)
|
Phase 3 | |
Completed |
NCT02943720 -
ATIBAR - Efficacy and Safety of Two Doses of AllerT in Patients Allergic to Birch Pollen
|
Phase 2 | |
Completed |
NCT02910401 -
Clinical Response to Rhinovirus Challenge
|
Phase 2 | |
Not yet recruiting |
NCT01014325 -
Safety and Efficacy Study With Allergen Extracts of House Dust Mites for Specific Sublingual Immunotherapy
|
Phase 3 | |
Completed |
NCT02556801 -
Efficacy and Safety of SUBLIVAC Phleum for Immunotherapy of Grass Pollen-Allergy
|
Phase 2 | |
Not yet recruiting |
NCT02233426 -
Effect of Hypertonic Solutions on Allergic Rhinitis Patients
|
N/A | |
Completed |
NCT02352168 -
Airway Inflammation in Children With Allergic Rhinitis and Intervention
|
N/A | |
Completed |
NCT01918956 -
PURETHAL Birch RUSH Study
|
Phase 4 | |
Completed |
NCT01946035 -
Alpha-Blockers in Allergic Rhinitis (MAN 01)
|
Phase 4 | |
Completed |
NCT01682070 -
SUBLIVAC FIX Phleum Pratense DT/DRF
|
Phase 2 | |
Recruiting |
NCT01454492 -
The Relationship Between Allergic Rhinitis and Geographic Tongue
|
N/A | |
Completed |
NCT01439815 -
An Allergen BioCube (ABC) Study Evaluating the Efficacy of Fluticasone Propionate Nasal Spray Compared to Placebo
|
Phase 4 |