Evidence map›Paper›PMID 33062194›Full record

ArticleOncotarget2020

PD-1/PD-L1 expression in anal squamous intraepithelial lesions.

Margot Bucau, Nathalie Gault, Nanthara Sritharan, Emy Valette, Charlotte Charpentier, Francine Walker, Anne Couvelard, Laurent Abramowitz

Abstract read
In one paragraph

Article in Oncotarget, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
–field-weighted citation impact
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

7 citing papers in PubMed.

  1. Article
  2. Review
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  7. Review
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

8 authors.

Margot BucauAP-HP, Département de Pathologie, Hôpital Bichat-Claude Bernard, F-75018 Paris, France.
Nathalie GaultAP-HP, Département d'Epidémiologie Biostatistiques et Recherche Clinique, Hôpital Bichat-Claude Bernard, F-75018 Paris, France.
Nanthara SritharanINSERM CIC-EC1425, Hôpital Bichat-Claude Bernard, F-75018 Paris, France.
Emy ValetteAP-HP, Service de Gastroentérologie et Proctologie, Hôpital Bichat-Claude Bernard, F-75018 Paris, France.
Charlotte CharpentierAP-HP, Laboratoire de Virologie, Hôpital Bichat-Claude Bernard, F-75018 Paris, France.
Francine WalkerAP-HP, Département de Pathologie, Hôpital Bichat-Claude Bernard, F-75018 Paris, France.
Anne CouvelardAP-HP, Département de Pathologie, Hôpital Bichat-Claude Bernard, F-75018 Paris, France.
Laurent AbramowitzAP-HP, Service de Gastroentérologie et Proctologie, Hôpital Bichat-Claude Bernard, F-75018 Paris, France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionStudies have shown that the PD-1/PD-L1 immunomodulatory pathway slows down anti-tumor immunity in a number of cancers. The description of the expression of these molecules has never been performed in anal low-grade/high grade squamous intra-epithelial lesions (LSIL/HSIL respectively). MATERIALS AND

methodsPatients followed in the AIN3 cohort were routinely sampled. For each selected sample, an immunohistochemical study was performed with anti-CD8, PD-1, PD-L1 antibodies. The presence and distribution of CD8+ lymphocytes, and the presence of PD-1+ lymphocytes and PD-L1+ epithelial cells were assessed. The comparison of these characteristics was performed between the HSIL and LSIL groups.

results33 patients were included and 78 samples selected (60 HSIL and 18 LSIL). CD8+ lymphocytes were observed more frequently in HSIL versus LSIL in the lamina propria or intra epithelial (respectively 90% vs. 60%,

conclusionsAnal dysplastic lesions are accompanied by an inflammatory lymphocytic infiltrate expressing CD8 and PD-1, more frequent in high-grade lesions. These results highlight the involvement of the PD-1/PD-L1 pathway in the natural history of anal dysplasia.

Indexed as

anal canceranal dysplasiaHPVimmune microenvironmentPD-L1

Identifiers

PMID33062194
PMCPMC7533075

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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.