Evidence map›Paper›PMID 34326692›Full record

ReviewInternational journal of biological sciences2021

New insights into the important roles of tumor cell-intrinsic PD-1.

Hongmei Zheng, Yue Ning, Yuting Zhan, Sile Liu, Qiuyuan Wen, Songqing Fan

Open access · goldAbstract readReview
In one paragraph

Review in International journal of biological sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.9field-weighted citation impact, top 11% 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

19 citing papers in PubMed, 27 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Programmed cell death protein 1 in cancer cells.Cell communication and signaling : CCS · 2025
    Review
  6. Review
  7. Review
  8. CTLA-4 silencing could promote anti-tumor effects in hepatocellular.Medical oncology (Northwood, London, England) · 2024
    Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
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

6 authors at 2 institutions in 1 country.

Hongmei ZhengDepartment of Pathology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China.
Yue NingDepartment of Pathology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China.
Yuting ZhanDepartment of Pathology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China.
Sile LiuDepartment of Pathology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China.
Qiuyuan WenDepartment of Pathology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China.
Songqing FanDepartment of Pathology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China.
Central South University · CNSecond Xiangya Hospital of Central South University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

PD-1 (Programmed cell death protein-1) is mainly expressed in various immune cells, while its ligands PD-L1/PD-L2 (Programmed death ligand-1/Programmed death ligand-2) are mostly expressed in tumor cells. Generally, the binding of PD-L1/PD-L2 and PD-1 could lead to the tumor immune evasion. However, some recent studies showed that PD-1 could also be expressed in tumor cells and could activate mTOR (Mammalian Target of Rapamycin) or Hippo signaling pathway, therefore facilitating tumor proliferation independent of the immune system. While there was evidence that tumor cell-intrinsic PD-1 inhibited the activation of AKT and ERK1/2 pathways, thereby inhibiting tumor cell growth. Based on TCGA and CCLE database, we found that PD-1 was expressed in a variety of tumors and was associated with patient's prognosis. Besides, we found that PD-1 may be involved in many carcinogenic signaling pathway on the basis of PD-1 gene enrichment analysis of cancer tissues and cancer cells. Our understanding of the tumor cell-intrinsic PD-1 function is still limited. This review is aimed at elaborating the potential effects of tumor cell-intrinsic PD-1 on carcinogenesis, providing a novel insight into the effects of anti-PD-1/PD-L1 immunotherapy, and helping to open a major epoch of combination therapy.

Indexed as

B7-H1 AntigenCarcinogenesisGene Expression Regulation, NeoplasticHippo Signaling PathwayHumansImmunotherapyNeoplasmsProgrammed Cell Death 1 Ligand 2 ProteinTOR Serine-Threonine KinasesB7-H1 AntigenProgrammed Cell Death 1 Ligand 2 ProteinTOR Serine-Threonine KinasesimmunotherapyPD-L1tumor cell-intrinsic PD-1

Identifiers

PMID34326692
PMCPMC8315021
OpenAlexW3175267761

What OpenQuestion holds

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LicenceCC BY
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.