Cited by 42Monoclonal and Polyclonal Antibodies ResearchCancer Immunotherapy and BiomarkersImmune Cell Function and Interaction

The DOI matches its Crossref record; 55 of the 55 references it cites were found in a registry or an index.

Fc glycoengineering of a PD-L1 antibody harnesses Fcγ receptors for increased antitumor efficacy

Abstract

FDA-approved anti–PD-L1 monoclonal antibodies (mAbs) bear the IgG1 isotype, whose scaffolds are either wild-type (e.g., avelumab) or Fc-mutated and lacking Fcγ receptor (FcγR) engagement (e.g., atezolizumab). It is unknown whether variation in the ability of the IgG1 Fc region to engage FcγRs renders mAbs with superior therapeutic activity. In this study, we used humanized FcγR mice to study the contribution of FcγR signaling to the antitumor activity of human anti–PD-L1 mAbs and to identify an optimal human IgG scaffold for PD-L1 mAbs. We observed similar antitumor efficacy and comparable tumor immune responses in mice treated with anti–PD-L1 mAbs with wild-type and Fc-mutated IgG scaffolds. However, in vivo antitumor activity of the wild-type anti–PD-L1 mAb avelumab was enhanced by combination treatment with an FcγRIIB-blocking antibody, which was co-administered to overcome the suppressor function of FcγRIIB in the tumor microenvironment (TME). We performed Fc glycoengineering to remove the fucose subunit from the Fc-attached glycan of avelumab to enhance its binding to the activating FcγRIIIA. Treatment with the Fc-afucosylated version of avelumab also enhanced antitumor activity and induced stronger antitumor immune responses compared with the parental IgG. The enhanced effect by afucosylated PD-L1 antibody was dependent on neutrophils and associated with decreased frequencies of PD-L1 + myeloid cells and increased infiltration of T cells in the TME. Our data reveal that the current design of FDA-approved anti–PD-L1 mAbs does not optimally harness FcγR pathways and suggest two strategies to enhance FcγR engagement to optimize anti–PD-L1 immunotherapy.

Overview

Integrity signals

Registry

Crossref · 10.1126/sciimmunol.add8005

Cites

55 of 55 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Verification

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Immune checkpoint inhibitors as monotherapy have limited efficacy in the treatment of relapsed/refractory multiple myeloma.

    “However, the efficacy of these antibodies particularly as monotherapy was limited in the treatment of RRMM [173–176].”

    From Multiple myeloma: signaling pathways and targeted therapy (2024) · cites this paper as [176]

Citations

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Metadata

Authors
Cohen Saban, N., Yalin, A., Landsberger, T., Salomon, R., Alva, A., Feferman, T., Amit, I., & Dahan, R.
Affiliations
  • Department of Systems Immunology, Weizmann Institute of Science, Rehovot, Israel.
  • Weizmann Institute of Science (IL)
  • U-M Rogel Cancer Center (US)
Corresponding author
Dahan, Rony
Venue
Science Immunology
Published
2023-03-31
Volume
8
Issue
81
Pages
eadd8005-eadd8005
ISSN
2470-9468 (ISSN-L)
OpenAlex
W4323031408
Cited by
39
References
55
Citations by year
2026: 6 · 2025: 9 · 2024: 16 · 2023: 8
FWCI
6.43
Type
journal article
Language
en
Open access
closed
Locations
  • Science Immunology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Monoclonal and Polyclonal Antibodies Research
  • Health Sciences › Medicine › Oncology › Cancer Immunotherapy and Biomarkers
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Cell Function and Interaction
Keywords
anti-PD-L1 monoclonal antibody, Fc gamma receptor, FcγRIIB, FcγRIIIa, avelumab, tumor microenvironment, neutrophils, myeloid cells, T cell infiltration, cancer immunotherapy
MeSH terms
Immune Checkpoint Inhibitors, Animals, Antibodies, Monoclonal, Humans, Immunoglobulin G, Immunotherapy, Receptors, IgG, Mice

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review