Suppression of IgE-mediated anaphylaxis and food allergy with monovalent anti-FcεRIα mAbs.
Anaphylaxis
/ drug therapy
Animals
Anti-Allergic Agents
/ pharmacology
Antibodies, Monoclonal
/ pharmacology
Female
Food Hypersensitivity
/ drug therapy
Immunoglobulin E
/ immunology
Immunoglobulin G
/ immunology
Male
Mast Cells
/ drug effects
Mice, Inbred BALB C
Mice, Transgenic
Phosphatidylinositol-3,4,5-Trisphosphate 5-Phosphatases
/ immunology
Receptors, IgE
/ genetics
Syk Kinase
/ immunology
IL-4
IgG(1)
IgG(4)
Mouse
Syk
cross-linking
desensitization
humanized
mast cell
Journal
The Journal of allergy and clinical immunology
ISSN: 1097-6825
Titre abrégé: J Allergy Clin Immunol
Pays: United States
ID NLM: 1275002
Informations de publication
Date de publication:
05 2021
05 2021
Historique:
received:
29
08
2020
revised:
20
10
2020
accepted:
30
10
2020
pubmed:
17
12
2020
medline:
25
9
2021
entrez:
16
12
2020
Statut:
ppublish
Résumé
Mast cell and basophil activation by antigen cross-linking of FcεRI-bound IgE is central to allergy pathogenesis. We previously demonstrated global suppression of this process by rapid desensitization with anti-FcεRIα mAbs. We sought to determine whether use of monovalent (mv) anti-FcεRIα mAbs increases desensitization safety without loss of efficacy. mv anti-human (hu) FcεRIα mAbs were produced with mouse-derived immunoglobulin variable regions and huIgG mv anti-hu FcεRIα mAbs are considerably less able than divalent mAbs are to induce anaphylaxis and deplete mast cell and basophil IgE, but mv mAbs still strongly suppress IgE-mediated disease. The mv mAbs can be safely administered as a single large dose to mice with typical susceptibility to anaphylaxis, while a rapid desensitization approach safely suppresses disease in mice with increased susceptibility. Our huIgG mv anti-FcεRIα mAbs more safely suppress IgE-mediated anaphylaxis and food allergy than divalent variants of the same mAbs do. These mv mAbs may be useful for suppression of huIgE-mediated disease.
Sections du résumé
BACKGROUND
Mast cell and basophil activation by antigen cross-linking of FcεRI-bound IgE is central to allergy pathogenesis. We previously demonstrated global suppression of this process by rapid desensitization with anti-FcεRIα mAbs.
OBJECTIVES
We sought to determine whether use of monovalent (mv) anti-FcεRIα mAbs increases desensitization safety without loss of efficacy.
METHODS
mv anti-human (hu) FcεRIα mAbs were produced with mouse-derived immunoglobulin variable regions and huIgG
RESULTS
mv anti-hu FcεRIα mAbs are considerably less able than divalent mAbs are to induce anaphylaxis and deplete mast cell and basophil IgE, but mv mAbs still strongly suppress IgE-mediated disease. The mv mAbs can be safely administered as a single large dose to mice with typical susceptibility to anaphylaxis, while a rapid desensitization approach safely suppresses disease in mice with increased susceptibility. Our huIgG
CONCLUSIONS
mv anti-FcεRIα mAbs more safely suppress IgE-mediated anaphylaxis and food allergy than divalent variants of the same mAbs do. These mv mAbs may be useful for suppression of huIgE-mediated disease.
Identifiants
pubmed: 33326804
pii: S0091-6749(20)31729-2
doi: 10.1016/j.jaci.2020.10.045
pmc: PMC8215870
mid: NIHMS1713205
pii:
doi:
Substances chimiques
Anti-Allergic Agents
0
Antibodies, Monoclonal
0
Immunoglobulin G
0
Receptors, IgE
0
Immunoglobulin E
37341-29-0
Syk Kinase
EC 2.7.10.2
Syk protein, mouse
EC 2.7.10.2
Inpp5d protein, mouse
EC 3.1.3.86
Phosphatidylinositol-3,4,5-Trisphosphate 5-Phosphatases
EC 3.1.3.86
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
1838-1854.e4Subventions
Organisme : NIDDK NIH HHS
ID : R01 DK116789
Pays : United States
Organisme : NIAID NIH HHS
ID : R01 AI145991
Pays : United States
Organisme : NIAID NIH HHS
ID : R01 AI130103
Pays : United States
Organisme : NIDDK NIH HHS
ID : P30 DK078392
Pays : United States
Organisme : NIAID NIH HHS
ID : R01 AI113162
Pays : United States
Informations de copyright
Copyright © 2020 American Academy of Allergy, Asthma & Immunology. Published by Elsevier Inc. All rights reserved.
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