Evidence map›Paper›PMID 29253865›Full record

ArticlePloS one2017

Radiation enhanced the local and distant anti-tumor efficacy in dual immune checkpoint blockade therapy in osteosarcoma.

Yutaka Takahashi, Tomohiro Yasui, Keisuke Tamari, Kazumasa Minami, Keisuke Otani, Fumiaki Isohashi, Yuji Seo, Ryosuke Kambe, Masahiko Koizumi, Kazuhiko Ogawa

Abstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 1 pooled it
–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

30 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  7. High-LET charged particles: radiobiology and application for new approaches in radiotherapy.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2023
    Review
  8. Article
  9. Strategies to Overcome Resistance to Immune-Based Therapies in Osteosarcoma.International journal of molecular sciences · 2023
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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.

Yutaka TakahashiDept. of Radiation Oncology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan.ORCID http://orcid.org/0000-0002-4311-2278
Tomohiro YasuiDept. of Medical Physics and Engineering, Osaka University Graduate School of Medicine, Suita, Osaka, Japan.
Keisuke TamariDept. of Radiation Oncology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan.
Kazumasa MinamiDept. of Medical Physics and Engineering, Osaka University Graduate School of Medicine, Suita, Osaka, Japan.
Keisuke OtaniDept. of Radiation Oncology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan.
Fumiaki IsohashiDept. of Radiation Oncology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan.
Yuji SeoDept. of Radiation Oncology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan.
Ryosuke KambeDept. of Medical Physics and Engineering, Osaka University Graduate School of Medicine, Suita, Osaka, Japan.
Masahiko KoizumiDept. of Medical Physics and Engineering, Osaka University Graduate School of Medicine, Suita, Osaka, Japan.
Kazuhiko OgawaDept. of Radiation Oncology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Radiation therapy has been long utilized as localized cancer treatment. Recent studies have also demonstrated that it has a distant effect by the enhanced immunity, but it rarely occurs. The purpose of this study was to investigate whether X-ray irradiation combined with anti-PD-L1 and anti-CTLA-4 antibodies (P1C4) provides a higher probability of this distant effect as well as enhanced local antitumor efficacy for osteosarcoma. LM8 mouse osteosarcoma cells were inoculated into both legs of C3H mice assigned to one of four groups, namely no treatment (No Tx), P1C4, X-ray irradiation (RAD) to the leg of one side, and combination (COMB) groups. Survival and treatment-related immune molecular changes were analyzed. Administration of P1C4 produced a tumor growth delay on day 30 in 18% of the mice. In contrast, combination therapy produced the strongest tumor growth inhibition not only at the irradiated tumor but also at unirradiated tumor in 67% of the mice. Accordingly, lung metastasis in the COMB group was strongly reduced by 98%, with a significant survival benefit. Unirradiated tumor in mice in the COMB group significantly recruited CD8 + tumor-infiltrating lymphocytes with a moderate reduction of Treg, producing a significant increase in the CD8/Treg ratio. These results suggest that radiation enhances the efficacy of P1C4 treatment against distant metastasis as well as local control in osteosarcoma. Our data suggest that radiation therapy combined with dual checkpoint blockade may be a promising therapeutic option for osteosarcoma.

Indexed as

AnimalsAntibodies, MonoclonalAntineoplastic AgentsBone NeoplasmsCD8-Positive T-LymphocytesCell Cycle CheckpointsCell Line, TumorLung NeoplasmsLymphocytesLymphocytes, Tumor-InfiltratingMiceMice, Inbred C3HNeoplasm MetastasisOsteosarcomaSpleenT-Lymphocytes, RegulatoryAntibodies, MonoclonalAntineoplastic Agents

Identifiers

PMID29253865
PMCPMC5734786

What OpenQuestion holds

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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.