Evidence map›Paper›PMID 33136179›Full record

ArticleCancer immunology, immunotherapy : CII2021

Prognostic significance of PD-1/PD-L1 expression in uveal melanoma: correlation with tumor-infiltrating lymphocytes and clinicopathological parameters.

Lata Singh, Mithalesh Kumar Singh, Maria Cristina Kenney, Martine J Jager, Moshahid Alam Rizvi, Rachna Meel, Neiwete Lomi, Sameer Bakhshi, Seema Sen, Seema Kashyap

Open access · bronzeAbstract read
In one paragraph

Article in Cancer immunology, immunotherapy : CII, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.5field-weighted citation impact, top 9% 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

24 citing papers in PubMed, 31 citations in OpenAlex.

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  9. NADAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
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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

10 authors at 4 institutions in 3 countries.

Lata SinghDepartment of Ocular Pathology, Dr. R P. Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India.
Mithalesh Kumar SinghDepartment of Ocular Pathology, Dr. R P. Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India.
Maria Cristina KenneyDepartment of Ophthalmology, Gavin Herbert Eye Institute, University of California, Irvine, USA.
Martine J JagerDepartment of Ophthalmology, Leiden University Medical Center, Leiden, The Netherlands.
Moshahid Alam RizviBiosciences, Jamia Millia Islamia, New Delhi, India.
Rachna MeelDepartment of Ophthalmology, Dr. R. Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India.
Neiwete LomiDepartment of Ophthalmology, Dr. R. Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India.
Sameer BakhshiDepartment of Medical Oncology, All India Institute of Medical Sciences, IRCH, New Delhi, India.
Seema SenDepartment of Ocular Pathology, Dr. R P. Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India.
Seema KashyapDepartment of Ocular Pathology, Dr. R P. Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India. dr_skashyap@hotmail.com.ORCID http://orcid.org/0000-0002-8746-9017
All India Institute of Medical Sciences · INUniversity of California, Irvine · USJamia Millia Islamia · INLeiden University Medical Center · NL

Funding

Science and Engineering Research Board NPDF/2016/000903
6 · The paper itself

Abstract

backgroundTo understand how to improve the effect of immune checkpoint inhibitors in uveal melanoma (UM), we need a better understanding of the expression of PD-1 and PD-L1, their relation with the presence of tumor-infiltrating lymphocytes (TILs), and their prognostic relevance in UM patients. MATERIALS AND

methodsExpression of PD-1 and PD-L1 was assessed in 71 UM tissue samples by immunohistochemistry and quantitative real-time PCR (qRT-PCR), and further validated by western blotting. The effect of interferon gamma (IFN-γ) on PD-1/PD-L1 expression was determined on four UM cell lines.

resultsImmunoreactivity of PD-1 was found in 30/71 cases and of PD-L1 in 44/71 UM samples. Tumor-infiltrating lymphocytes were found in 46% of UM tissues. PD-1 was expressed on TILs while tumor cells expressed PD-L1. UM with and without TILs showed expression of PD-1 in 69% and 18% cases, respectively (p = 0.001). Similarly, PD-L1 was found in 75% of UM with TILs and in 50% of cases without TILs, respectively (p = 0.03). DFS rate were lower in patients with TILs with expression of PD-1 and PD-L1, but the rate of DFS was higher with expression of PD-L1 in patients without TILs. After treatment of UM cell lines with IFN-γ, PD-1 expression was induced in all UM cell lines whereas PD-L1 expression was found at a lower level in untreated cells, while expression also increased following treatment with IFN-γ.

conclusionOur study suggests that increased infiltration with TILs promotes the aggressive behavior and suppresses the immune response of UM cells, thereby inhibiting immunotherapy.

Indexed as

B7-H1 AntigenCell Line, TumorCell MovementEye NeoplasmsFollow-Up StudiesHumansImmunohistochemistryImmunotherapyInterferon-gammaLymphocytes, Tumor-InfiltratingMelanomaPolymerase Chain ReactionPrognosisProgrammed Cell Death 1 ReceptorSurvival AnalysisUveal MelanomaB7-H1 AntigenInterferon-gammaProgrammed Cell Death 1 ReceptorImmunotherapyInterferon gammaTumor-infiltrating lymphocytesUveal melanoma

Identifiers

PMID33136179
PMCPMC10991427
OpenAlexW3097631244

What Socratic holds

Textmetadata
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 Socratic graph.