Evidence map›Paper›PMID 34253205›Full record

ArticleCancer cell international2021

Relationship between PD-L1 expression, CD8+ T-cell infiltration and prognosis in intrahepatic cholangiocarcinoma patients.

Min Deng, Shao-Hua Li, Xu Fu, Xiao-Peng Yan, Jun Chen, Yu-Dong Qiu, Rong-Ping Guo

Open access · goldAbstract read
In one paragraph

Article in Cancer cell international, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 2 pooled it
6.3field-weighted citation impact, top 3% 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

38 citing papers in PubMed, 2 syntheses or guidelines pooled it, 44 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Advances in Immunotherapy for Intrahepatic Cholangiocarcinoma.International journal of molecular sciences · 2026
    Review
  4. CCR5 expression defines the functional heterogeneity of tumor-infiltrating CD8Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2026
    Article
  5. Review
  6. Article
  7. Article
  8. Inverse Regulation of TLR4 and PD-L1 Shapes the Inflammatory Tumor Microenvironment in Oral Squamous Cell Carcinomas.Journal of oral pathology & medicine : official publication of the International Association of Oral Pathologists and the American Academy of Oral Pathology · 2025
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Infiltration of CD8Scientific reports · 2025
    Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Observational
  19. Review
  20. 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

7 authors at 2 institutions in 1 country.

Min Deng *Department of Liver Surgery, Sun Yat-Sen University Cancer Center, 651 Dongfeng East Road, Guangzhou, China.ORCID http://orcid.org/0000-0002-6775-2210
Shao-Hua Li *Department of Liver Surgery, Sun Yat-Sen University Cancer Center, 651 Dongfeng East Road, Guangzhou, China.
Xu FuDepartment of Hepatopancreatobiliary Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhong-Shan Road, Nanjing, Jiangsu, China.
Xiao-Peng YanDepartment of Hepatopancreatobiliary Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhong-Shan Road, Nanjing, Jiangsu, China.
Jun ChenDepartment of Pathology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China.
Yu-Dong QiuDepartment of Hepatopancreatobiliary Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhong-Shan Road, Nanjing, Jiangsu, China. yudongqiu510@163.com.
Rong-Ping GuoDepartment of Liver Surgery, Sun Yat-Sen University Cancer Center, 651 Dongfeng East Road, Guangzhou, China. guorp@sysucc.org.cn.
Nanjing Drum Tower Hospital · CNSun Yat-sen University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundProgrammed death- ligand 1 (PD-L1) seems to be associated with the immune escape of tumors, and immunotherapy may be a favorable treatment for PD-L1-positive patients. We evaluated intrahepatic cholangiocarcinoma (ICC) specimens for their expression of PD-L1, infiltration of CD8+ T cells, and the relationship between these factors and patient survival.

methodsIn total, 69 resections of ICC were stained by immunohistochemistry for PD-L1, programmed death factor-1 (PD-1), and CD8+ T cells. CD8+ T-cell densities were analyzed both within tumors and at the tumor-stromal interface. Patient survival was predicted based on the PD-L1 status and CD8+ T-cell density.

resultsThe expression rate of PD-L1 was 12% in cancer cells and 51% in interstitial cells. The expression rate of PD-1 was 30%, and the number of CD8+ T-cells increased with the increase of PD-L1 expression (p < 0.05). The expression of PD-L1 in the tumor was correlated with poor overall survival(OS) (p = 0.004), and the number of tumor and interstitial CD8+ T-cells was correlated with poor OS and disease-free survival (DFS) (All p < 0.001).

conclusionsThe expression of PD-L1 in the tumor is related to poor OS, and the number of tumor or interstitial CD8+ T-cells is related to poor OS and DFS. For patients who lose their chance of surgery, PD-L1 immunosuppressive therapy may be the focus of future research as a potential treatment.

Indexed as

CD8+ T cellCholangiocarcinomaIntrahepaticPrognosisProgrammed death-ligand 1

Identifiers

PMID34253205
PMCPMC8273972
OpenAlexW3158306799

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.