Evidence map›Paper›PMID 22531441›Full record

ArticlemAbs

Quantitative evaluation of fucose reducing effects in a humanized antibody on Fcγ receptor binding and antibody-dependent cell-mediated cytotoxicity activities.

Shan Chung, Valerie Quarmby, Xiaoying Gao, Yong Ying, Linda Lin, Chae Reed, Chris Fong, Wendy Lau, Zhihua J Qiu, Amy Shen and 2 more

Open access · goldAbstract read
In one paragraph

Article in mAbs. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed, 1 pooled it
5.7field-weighted citation impact, top 4% 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

63 citing papers in PubMed, 1 synthesis or guideline pooled it, 122 citations in OpenAlex.

  1. Biosimilarity and Interchangeability: Principles and Evidence: A Systematic Review.BioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy · 2018
    Pooled it
  2. Fc-engineering for improved cancer immunotherapy.Biochemical Society transactions · 2026
    Review
  3. Article
  4. Review
  5. Review
  6. Review
  7. Article
  8. Review
  9. Review
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  11. Article
  12. Article
  13. Article
  14. Antibodies as clinical tools for tuberculosis.Frontiers in immunology · 2023
    Review
  15. Review
  16. High sensitivity glycomics in biomedicine.Mass spectrometry reviews · 2022
    Review
  17. Article
  18. Article
  19. Article
  20. Article

3 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

12 authors at 2 institutions in 1 country.

Shan ChungDepartment of BioAnalytical Sciences, Genentech, Inc., South San Francisco, CA, USA. chung.shan@gene.com
Valerie Quarmby
Xiaoying Gao
Yong Ying
Linda Lin
Chae Reed
Chris Fong
Wendy Lau
Zhihua J Qiu
Amy Shen
Martin Vanderlaan
An Song
GenentechBioanalytica (Switzerland) · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The presence or absence of core fucose in the Fc region N-linked glycans of antibodies affects their binding affinity toward FcγRIIIa as well as their antibody-dependent cell-mediated cytotoxicity (ADCC) activity. However, the quantitative nature of this structure-function relationship remains unclear. In this study, the in vitro biological activity of an afucosylated anti-CD20 antibody was fully characterized. Further, the effect of fucose reduction on Fc effector functions was quantitatively evaluated using the afucosylated antibody, its "regular" fucosylated counterpart and a series of mixtures containing varying proportions of "regular" and afucosylated materials. Compared with the "regular" fucosylated antibody, the afucosylated antibody demonstrated similar binding interactions with the target antigen (CD20), C1q and FcγRIa, moderate increases in binding to FcγRIIa and IIb, and substantially increased binding to FcγRIIIa. The afucosylated antibodies also showed comparable complement-dependent cytotoxicity activity but markedly increased ADCC activity. Based on EC 50 values derived from dose-response curves, our results indicate that the amount of afucosylated glycan in antibody samples correlate with both FcγRIIIa binding activity and ADCC activity in a linear fashion. Furthermore, the extent of ADCC enhancement due to fucose depletion was not affected by the FcγRIIIa genotype of the effector cells.

Indexed as

AnimalsAntibodies, Monoclonal, HumanizedAntibody AffinityAntibody-Dependent Cell CytotoxicityAntigens, CD20FucoseHumansOxidation-ReductionProtein BindingProtein Processing, Post-TranslationalQuantitative Structure-Activity RelationshipReceptors, IgGAntibodies, Monoclonal, HumanizedAntigens, CD20FucoseReceptors, IgG

Identifiers

PMID22531441
PMCPMC3355491
OpenAlexW2078353854

What OpenQuestion holds

Textmetadata
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.