Cited by 2,189Cancer Immunotherapy and BiomarkersImmunotherapy and Immune ResponsesT-cell and B-cell Immunology

The DOI matches its Crossref record; 176 of the 176 references it cites were found in a registry or an index; 7 of the 192 sources its claims cite were checked for support.

Immune Checkpoint Inhibitors for the Treatment of Cancer: Clinical Impact and Mechanisms of Response and Resistance

Open access
Bagchi, Sreya, Yuan, Robert, Engleman, Edgar G.·2021·Annual Review of Pathology: Mechanisms of Disease

Abstract

Immune checkpoint inhibitors (ICIs) have made an indelible mark in the field of cancer immunotherapy. Starting with the approval of anti-cytotoxic T lymphocyte-associated protein 4 (anti-CTLA-4) for advanced-stage melanoma in 2011, ICIs—which now also include antibodies against programmed cell death 1 (PD-1) and its ligand (PD-L1)—quickly gained US Food and Drug Administration approval for the treatment of a wide array of cancer types, demonstrating unprecedented extension of patient survival. However, despite the success of ICIs, resistance to these agents restricts the number of patients able to achieve durable responses, and immune-related adverse events complicate treatment. Thus, a better understanding of the requirements for an effective and safe antitumor immune response following ICI therapy is needed. Studies of both tumoral and systemic changes in the immune system following ICI therapy have yielded insight into the basis for both efficacy and resistance. Ultimately, by building on these insights, researchers should be able to combine ICIs with other agents, or design new immunotherapies, to achieve broader and more durable efficacy as well as greater safety. Here, we review the history and clinical utility of ICIs, the mechanisms of resistance to therapy, and local and systemic immune cell changes associated with outcome.

Overview

Integrity signals

Registry

Crossref · 10.1146/annurev-pathol-042020-042741

Cites

176 of 176 references verified0 citation errors · 0 not checkable

Statistics

Nothing to recompute.

Verification

Claims the paper makes

98 Not checked yet · 27 Own interpretation · 12 No basis given · 2 Partly supported · 1 Own result · accuracy not yet measured

Verify all 185 references — free account

Show all 97 claims

  • It may state two separate claims as one. 40
  • Probably not a substantial claim. 5
43 of 43
  • The paper relies on this without support.

    Lymphocytes, especially CD8+ T cells and NK cells, are critical for antitumor immunity.

    “A paradigm in the field of tumor immunology is that lymphocytes, especially CD8 + T cells and NK cells, are critical for antitumor immunity.”
  • The paper relies on this without support.

    For any T cell to become activated and acquire effector functions, its TCR must recognize its cognate antigen presented on an MHC molecule.

    “For any T cell to become activated and acquire effector functions, its TCR must recognize its cognate antigen presented on an MHC molecule.”
  • The paper relies on this without support.

    The antigen specificity of a T cell is determined by its TCR, and each cell expresses multiple copies of only a single TCR, making T cells highly specific.

    “The antigen specificity of a T cell is determined by its TCR, and because each cell expresses multiple copies of only a single TCR, T cells are highly specific in their response.”
3 of 3

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?

Citations

Cites

Show all 176 references

Research works printed but not linked: 1

  1. Yang YF, 1997, Cancer Res, 57, 4036

Cited by

Sorted by citations

Items 301–400 of 1,001

Metadata

Authors
Bagchi, S., Yuan, R., & Engleman, E. G.
Affiliations
Stanford Medicine (US)
Venue
Annual Review of Pathology: Mechanisms of Disease
Published
2021-01-24
Volume
16
Issue
1
Pages
223-249
ISSN
  • 1553-4006 (ISSN-L)
  • 1553-4014
OpenAlex
W3106005610
Cited by
2,189
References
176
Citations by year
2026: 259 · 2025: 425 · 2024: 548 · 2023: 514 · 2022: 377 · 2021: 64
FWCI
25.91
Type
journal article
Language
en
Open access
Locations
  • Annual Review of Pathology Mechanisms of Disease (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Cancer Institute (R01CA233958, U54CA209971, R01CA222969)
Topics
  • Health Sciences › Medicine › Oncology › Cancer Immunotherapy and Biomarkers
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
Keywords
immune checkpoint inhibitors, cancer immunotherapy, CTLA-4, PD-1, PD-L1, immune resistance mechanisms, immune-related adverse events, antitumor immunity, combination immunotherapy, melanoma
MeSH terms
Immune Checkpoint Inhibitors, Animals, Humans, Immunotherapy, Neoplasms, Drug Resistance, Neoplasm

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.

A language model drew the claims from the paper on 2026-10-07, under version 3 of the claim definition (model deepseek-v4.1-flash, prompt extract-v3).

A second model labelled each claim on 2026-10-07 (model jev-1.13-20260917, definition revision gold-guideline-v0.2).

Cited sources are checked with a language model’s help (gpt-6-sol).

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