Evidence map›Paper›PMID 33186888›Full record

ArticleTranslational oncology2021

NK cell infiltration is associated with improved overall survival in solid cancers: A systematic review and meta-analysis.

Sarah Nersesian, Sarah L Schwartz, Stephanie R Grantham, Leah K MacLean, Stacey N Lee, Morgan Pugh-Toole, Jeanette E Boudreau

Open access · goldAbstract read
In one paragraph

Article in Translational oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 127 papers.

0numbers the graph read from it
0cells of the map it votes in
127citing papers in PubMed
7.4field-weighted citation impact, top 2% 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

127 citing papers in PubMed, 188 citations in OpenAlex.

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67 more citing papers are in PubMed but not listed here.

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 1 institution in 1 country.

Sarah NersesianDepartment of Microbiology and Immunology, Dalhousie University, Halifax, NS, Canada.
Sarah L SchwartzDepartment of Microbiology and Immunology, Dalhousie University, Halifax, NS, Canada.
Stephanie R GranthamDepartment of Microbiology and Immunology, Dalhousie University, Halifax, NS, Canada.
Leah K MacLeanDepartment of Pathology, Dalhousie University, Halifax, NS, Canada.
Stacey N LeeDepartment of Microbiology and Immunology, Dalhousie University, Halifax, NS, Canada.
Morgan Pugh-TooleDepartment of Microbiology and Immunology, Dalhousie University, Halifax, NS, Canada.
Jeanette E BoudreauDepartment of Microbiology and Immunology, Dalhousie University, Halifax, NS, Canada; Department of Pathology, Dalhousie University, Halifax, NS, Canada. Electronic address: Jeanette.boudreau@dal.ca.
Dalhousie University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The immune landscape of a tumor is highly connected to patient prognosis and response to treatment, but little is known about how natural killer (NK) cells predict overall survival (OS) among patients with solid tumors. We present the first meta-analysis on NK cell infiltration into solid tumors as a prognostic indicator for OS, considering cancer types independently, and together. Samples were collected from 1973 to 2016 with results published between 1989 and 2020. From 53 studies, we found that NK cell infiltration corresponds with decreased risk of death (HR=0.34, 95% CI: 0.26-0.46; p<0.0001). Among studies that investigated the prognostic potential of NK cells in specific regions of the tumor, intraepithelial infiltration was better predictive of OS than NK infiltration in the tumor-adjacent stroma. Generally, NK cell infiltration is lower in advanced-stage and lower-grade tumors; nevertheless, it remains prognostically beneficial. This meta-analysis highlights an important prognostic role of NK cells in solid tumors, but exposes that few studies have considered the contributions of NK cells. Toward NK cell-based immunotherapies, it will be important to understand the conditions under which NK cells can be effective agents of tumor control.

Indexed as

Immuno-oncologyNatural killer cellsSolid tumorTumor infiltrationTumor microenvironment

Identifiers

PMID33186888
PMCPMC7670197
OpenAlexW3101276404

What OpenQuestion holds

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LicenceCC BY-NC-ND
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.