Evidence map›Paper›PMID 22249450›Full record

ArticleThe Journal of experimental medicine2012

Sequential class switching is required for the generation of high affinity IgE antibodies.

Huizhong Xiong, Jayashree Dolpady, Matthias Wabl, Maria A Curotto de Lafaille, Juan J Lafaille

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of experimental medicine, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 147 papers.

0numbers the graph read from it
0cells of the map it votes in
147citing papers in PubMed
17.7field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

147 citing papers in PubMed, 269 citations in OpenAlex.

  1. Allergen-specific IgGThe Journal of allergy and clinical immunology · 2020
    Trial
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  17. Article
  18. Polarization of the memory B-cell response.Journal of leukocyte biology · 2025
    Review
  19. Progressively differentiated TNature immunology · 2025
    Article
  20. Type 2 immunity in allergic diseases.Cellular & molecular immunology · 2025
    Review

87 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 3 institutions in 2 countries.

Huizhong XiongSkirball Institute of Biomolecular Medicine, The Sackler Institute of Graduate Biomedical Sciences, New York University School of Medicine, New York, NY 10016, USA.
Jayashree Dolpady
Matthias Wabl
Maria A Curotto de Lafaille
Juan J Lafaille
New York University · USInstitute of Biomedical Science · GBUniversity of California, San Francisco · US

Funding

Vaccine FacilityP30CA016087 · NCI · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI ADRIANA HEGUY · 1985 to 2026
$83.1M
GENE TARGETED MICE WITH A SIMPLIFIED IMMUNE SYSTEMR01AI041570 · NIAID · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI WABL, MATTHIAS R · 1998 to 2014
$4.6M
NCI NIH HHS P30 CA016087NIAID NIH HHS R01 AI041570
6 · The paper itself

Abstract

IgE antibodies with high affinity for their antigens can be stably cross-linked at low concentrations by trace amounts of antigen, whereas IgE antibodies with low affinity bind their antigens weakly. In this study, we find that there are two distinct pathways to generate high and low affinity IgE. High affinity IgE is generated through sequential class switching (μ→γ→ε) in which an intermediary IgG phase is necessary for the affinity maturation of the IgE response, where the IgE inherits somatic hypermutations and high affinity from the IgG1 phase. In contrast, low affinity IgE is generated through direct class switching (μ→ε) and is much less mutated. Mice deficient in IgG1 production cannot produce high affinity IgE, even after repeated immunizations. We demonstrate that a small amount of high affinity IgE can cause anaphylaxis and is pathogenic. Low affinity IgE competes with high affinity IgE for binding to Fcε receptors and prevents anaphylaxis and is thus beneficial.

Indexed as

AnaphylaxisAnimalsAntibody AffinityDNA PrimersEnzyme-Linked Immunosorbent AssayFlow CytometryImmunoglobulin Class SwitchingImmunoglobulin EImmunoglobulin GMiceMice, Inbred BALB CPolymerase Chain ReactionReceptors, IgESequence Analysis, DNADNA PrimersImmunoglobulin EImmunoglobulin GReceptors, IgE

Identifiers

PMID22249450
PMCPMC3280879
OpenAlexW2162420224

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.