Evidence map›Paper›PMID 34572108›Full record

ArticleCells2021

Radiotherapy Combined with PD-1 Inhibition Increases NK Cell Cytotoxicity towards Nasopharyngeal Carcinoma Cells.

Anna Makowska, Nora Lelabi, Christina Nothbaum, Lian Shen, Pierre Busson, Tram Thi Bao Tran, Michael Eble, Udo Kontny

Open access · goldAbstract read
In one paragraph

Article in Cells, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

23 citing papers in PubMed, 31 citations in OpenAlex.

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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

8 authors at 2 institutions in 2 countries.

Anna MakowskaDivision of Pediatric Hematology, Oncology and Stem Cell Transplantation, Medical Faculty, Rhenish-Westphalian Technical University, 52074 Aachen, Germany.
Nora LelabiDivision of Pediatric Hematology, Oncology and Stem Cell Transplantation, Medical Faculty, Rhenish-Westphalian Technical University, 52074 Aachen, Germany.
Christina NothbaumDivision of Pediatric Hematology, Oncology and Stem Cell Transplantation, Medical Faculty, Rhenish-Westphalian Technical University, 52074 Aachen, Germany.
Lian ShenDivision of Pediatric Hematology, Oncology and Stem Cell Transplantation, Medical Faculty, Rhenish-Westphalian Technical University, 52074 Aachen, Germany.
Pierre BussonCNRS UMR 8126, Gustave Roussy, Université Paris Sud, Université Paris-Saclay, 94805 Villejuif, France.ORCID 0000-0003-1027-3400
Tram Thi Bao TranCNRS UMR 8126, Gustave Roussy, Université Paris Sud, Université Paris-Saclay, 94805 Villejuif, France.
Michael EbleDepartment of Radiation Oncology, Medical Faculty, Rhenish-Westphalian Technical University, 52074 Aachen, Germany.
Udo KontnyDivision of Pediatric Hematology, Oncology and Stem Cell Transplantation, Medical Faculty, Rhenish-Westphalian Technical University, 52074 Aachen, Germany.ORCID 0000-0002-3072-6772
Université Paris-Sud · FRFH Aachen · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNasopharyngeal carcinoma (NPC) in endemic regions and younger patients is characterized by a prominent lymphomononuclear infiltration. Radiation is the principal therapeutic modality for patients with NPC. Recent data suggest that the efficacy of radiotherapy in various cancers can be augmented when combined with immune checkpoint blockade. Here, we investigate the effect of radiotherapy on the killing of NPC cells by Natural Killer (NK) cells.

methodsNPC cell lines and a patient-derived xenograft were exposed to NK cells in the context of radiotherapy. Cytotoxicity was measured using the calcein-release assay. The contribution of the PD-L1/PD-1 checkpoint and signaling pathways to killing were analyzed using specific inhibitors.

resultsRadiotherapy sensitized NPC cells to NK cell killing and upregulated expression of PD-1 ligand (PD-L1) in NPC cells and PD-1 receptor (PD-1) in NK cells. Blocking of the PD-L1/PD-1 checkpoint further increased the killing of NPC cells by NK cells in the context of radiotherapy.

conclusionRadiation boosts the killing of NPC cells by NK cells. Killing can be further augmented by blockade of the PD-L1/PD-1 checkpoint. The combination of radiotherapy with PD-L1/PD-1 checkpoint blockade could therefore increase the efficacy of radiotherapy in NPC tumors.

Indexed as

AnimalsApoptosisB7-H1 AntigenCell ProliferationChemoradiotherapyFemaleHumansImmune Checkpoint InhibitorsKiller Cells, NaturalMiceMice, NudeNasopharyngeal CarcinomaNasopharyngeal NeoplasmsProgrammed Cell Death 1 ReceptorRadiotherapyTumor Cells, CulturedB7-H1 AntigenCD274 protein, humanImmune Checkpoint InhibitorsPDCD1 protein, humanProgrammed Cell Death 1 Receptorinterferon-betanasopharyngeal carcinomanatural killer cellsnuclear factor kappa Bprogrammed cell death ligand 1radiotherapy

Identifiers

PMID34572108
PMCPMC8470143
OpenAlexW3200966513

What OpenQuestion holds

Textmetadata
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.