Evidence map›Paper›PMID 31914969›Full record

ArticleBMC cancer2020

Anti-PD-1 antibody decreases tumour-infiltrating regulatory T cells.

Kazushige Yoshida, Masanori Okamoto, Jun Sasaki, Chika Kuroda, Haruka Ishida, Katsuya Ueda, Hirokazu Ideta, Takayuki Kamanaka, Atsushi Sobajima, Takashi Takizawa and 6 more

Open access · goldAbstract read
In one paragraph

Article in BMC cancer, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers.

0numbers the graph read from it
0cells of the map it votes in
69citing papers in PubMed
6.4field-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

69 citing papers in PubMed, 100 citations in OpenAlex.

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9 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

16 authors at 1 institution in 1 country.

Kazushige YoshidaDepartment of Orthopaedic Surgery, Shinshu University School of Medicine, Matsumoto, Japan.
Masanori OkamotoDepartment of Orthopaedic Surgery, Shinshu University School of Medicine, Matsumoto, Japan. ryouyuma@shinshu-u.ac.jp.
Jun SasakiDepartment of Orthopaedic Surgery, Shinshu University School of Medicine, Matsumoto, Japan.
Chika KurodaInstitute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Asahi 3-1-1, Matsumoto, 390-8621, Japan.
Haruka IshidaInstitute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Asahi 3-1-1, Matsumoto, 390-8621, Japan.
Katsuya UedaInstitute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Asahi 3-1-1, Matsumoto, 390-8621, Japan.
Hirokazu IdetaDepartment of Orthopaedic Surgery, Shinshu University School of Medicine, Matsumoto, Japan.
Takayuki KamanakaDepartment of Orthopaedic Surgery, Shinshu University School of Medicine, Matsumoto, Japan.
Atsushi SobajimaDepartment of Orthopaedic Surgery, Shinshu University School of Medicine, Matsumoto, Japan.
Takashi TakizawaDepartment of Orthopaedic Surgery, Shinshu University School of Medicine, Matsumoto, Japan.
Manabu TanakaDepartment of Orthopedic Surgery, Okaya City Hospital, Okaya, Japan.
Kaoru AokiPhysical Therapy Division, School of Health Sciences, Shinshu University School of Medicine, Matsumoto, Japan.
Takeshi UemuraInstitute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Asahi 3-1-1, Matsumoto, 390-8621, Japan.
Hiroyuki KatoDepartment of Orthopaedic Surgery, Shinshu University School of Medicine, Matsumoto, Japan.
Hisao HaniuInstitute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Asahi 3-1-1, Matsumoto, 390-8621, Japan.
Naoto SaitoInstitute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Asahi 3-1-1, Matsumoto, 390-8621, Japan. saitoko@shinshu-u.ac.jp.ORCID http://orcid.org/0000-0001-6424-087X
Shinshu University · JP

Funding

JSPS KAKENHI 16K20045 and 18K16652
6 · The paper itself

Abstract

backgroundThere are many types of therapies for cancer. In these days, immunotherapies, especially immune checkpoint inhibitors, are focused on. Though many types of immune checkpoint inhibitors are there, the difference of effect and its mechanism are unclear. Some reports suggest the response rate of anti-PD-1 antibody is superior to that of anti-PD-L1 antibody and could potentially produce different mechanisms of action. On the other hand, Treg also express PD-1; however, their relationship remains unclear.

methodsIn this study, we used osteosarcoma cell lines in vitro and osteosarcoma mouse model in vivo. In vitro, we analyzed the effect of IFNγ for expression of PD-L1 on the surface of cell lines by flowcytometry. In vivo, murine osteosarcoma cell line LM8 was subcutaneously transplanted into the dorsum of mice. Mouse anti-PD-1 antibody was intraperitoneally administered. we analysed the effect for survival of anti-PD-1 antibody and proportion of T cells in the tumour by flowcytometry.

resultsWe discovered that IFNγ increased PD-L1 expression on the surface of osteosarcoma cell lines. In assessing the relationship between anti-PD-1 antibody and Treg, we discovered the administration of anti-PD-1 antibody suppresses increases in tumour volume and prolongs overall survival time. In the tumour microenvironment, we found that the administration of anti-PD-1 antibody decreased Treg within the tumour and increased tumour-infiltrating lymphocytes.

conclusionsHere we clarify for the first time an additional mechanism of anti-tumour effect-as exerted by anti-PD-1 antibody decreasing Treg- we anticipate that our findings will lead to the development of new methods for cancer treatment.

Indexed as

AnimalsAntineoplastic Agents, ImmunologicalCell Line, TumorDisease Models, AnimalGene ExpressionHumansInterferon-gammaLymphocytes, Tumor-InfiltratingMiceNeoplasmsPrognosisProgrammed Cell Death 1 ReceptorT-Lymphocytes, RegulatoryTreatment OutcomeTumor MicroenvironmentXenograft Model Antitumor AssaysAntineoplastic Agents, ImmunologicalInterferon-gammaProgrammed Cell Death 1 ReceptorAnti-PD-1 antibodyOsteosarcomaPD-1Treg

Identifiers

PMID31914969
PMCPMC6950856
OpenAlexW2999252190

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.