Targeting an Initiator Allergen Provides Durable and Expansive Protection against House Dust Mite Allergy.
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Date
2022-09-09ICR Author
Author
Zhang, J
Chen, J
Richardson, JP
Francis-Newton, N-J
Lai, PF
Jenkins, K
Major, MR
Key, RE
Stewart, ME
Firth-Clark, S
Lloyd, SM
Newton, GK
Perrior, TR
Garrod, DR
Robinson, C
Type
Journal Article
Metadata
Show full item recordAbstract
Whereas treatment of allergic diseases such as asthma relies largely on the targeting of dysregulated effector pathways, the conceptually attractive alternative of preventing them by a pharmaceutical, at-source intervention has been stymied until now by uncertainties about suitable targets and the challenges facing drug design. House dust mites (HDMs) are globally significant triggers of allergy. Group 1 HDM allergens, exemplified by Der p 1, are cysteine proteases. Their degradome has a strong disease linkage that underlies their status as risk and initiator allergens acting directly and through bystander effects on other allergens. Our objective was to test whether target-selective inhibitors of group 1 HDM allergens might provide a viable route to novel therapies. Using structure-directed design to optimize a series of pyruvamides, we undertook the first examination of whether pharmaceutically developable inhibitors of group 1 allergens might offer protection against HDM exposure. Developability criteria included durable inhibition of clinically relevant signals after a single aerosolized dose of the drug. The compounds suppressed acute airway responses of rats and mice when challenged with an HDM extract representing the HDM allergome. Inhibitory effects operated through a miscellany of downstream pathways involving, among others, IL-33, thymic stromal lymphopoietin, chemokines, and dendritic cells. IL-13 and eosinophil recruitment, indices of Th2 pathway activation, were strongly attenuated. The surprisingly expansive benefits arising from a unique at-source intervention suggest a novel approach to multiple allergic diseases in which HDMs play prominent roles and encourage exploration of these pharmaceutically developable molecules in a clinical setting.
Collections
Subject
Science & Technology
Life Sciences & Biomedicine
Chemistry, Medicinal
Pharmacology & Pharmacy
house dust mite allergome
protease inhibitor
allergen
airway inflammation
eosinophil
Der p 1
INNATE LYMPHOID-CELLS
ASTHMA
AIRWAY
GLUTATHIONE
DER-P-1
MEDIATORS
POTENT
GENES
FLUID
IL-25
Research team
Medicinal Chemistry 3
Language
eng
Date accepted
2022-09-09
License start date
2022-09-09
Citation
ACS pharmacology & translational science, 2022, 5 (9), pp. 735 - 751
Publisher
AMER CHEMICAL SOC