Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 444

The DOI matches its Crossref record; 30 of the 30 references it cites were found in a registry or an index.

Therapeutic antitumor immunity by checkpoint blockade is enhanced by ibrutinib, an inhibitor of both BTK and ITK

Open access
Sagiv-Barfi, Idit, Kohrt, Holbrook E. K., Czerwinski, Debra K., Ng, Patrick P., Chang, Betty Y., Levy, Ronald·2015·Proceedings of the National Academy of Sciences

Abstract

Significance: Antibodies that block the negative signals between PD1-Ligand on tumor cells and PD-1 on T cells are effective therapies against several types of cancer. Ibrutinib, a covalent inhibitor of BTK is an approved therapy for B-cell leukemia and lymphoma. But ibrutinib also inactivates ITK, an enzyme required for certain subsets of T lymphocytes (Th2 T cells). We found that the combination of anti–PD-L1 antibodies and ibrutinib led to impressive therapeutic effects not only in animal models of lymphoma but, surprisingly, also in models of breast cancer and colon cancer. Based on these preclinical results, we suggest that the combination of PD-1/PD-L1 blockade and ibrutinib be tested broadly in patients with lymphoma and also in other hematologic malignancies and solid tumors.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1073/pnas.1500712112

Cites

30 of 30 references verified0 citation errors · 0 not checkable

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Show all 30 references

Cited by

See all 444

Metadata

Authors
Sagiv-Barfi, I., Kohrt, H. E. K., Czerwinski, D. K., Ng, P. P., Chang, B. Y., & Levy, R.
Venue
Proceedings of the National Academy of Sciences
Published
2015-02-17
Volume
112
Issue
9
Pages
E966-72
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2142604595
Cited by
444
References
30
FWCI
19.89
Type
journal article
Language
en
Open access
green

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

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: Therapeutic antitumor immunity by checkpoint blockade is enhanced by ibrutinib, an inhibitor of both BTK and ITK. https://app.cochat.ai/papers/10.1073/pnas.1500712112
The paper
Sagiv-Barfi, I., Kohrt, H. E. K., Czerwinski, D. K., Ng, P. P., Chang, B. Y., & Levy, R. (2015). Therapeutic antitumor immunity by checkpoint blockade is enhanced by ibrutinib, an inhibitor of both BTK and ITK. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.1500712112

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.