Evidence map›Paper›PMID 29914097›Full record

ArticleCancers2018

Oncolytic Reovirus and Immune Checkpoint Inhibition as a Novel Immunotherapeutic Strategy for Breast Cancer.

Ahmed A Mostafa, Daniel E Meyers, Chandini M Thirukkumaran, Peter J Liu, Kathy Gratton, Jason Spurrell, Qiao Shi, Satbir Thakur, Don G Morris

Abstract read
In one paragraph

Article in Cancers, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing 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

32 citing papers in PubMed.

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  19. Advanced pharmaceutical bulletin · 2021
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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

9 authors.

Ahmed A MostafaDepartment of Pathology and Laboratory Medicine, University of Calgary, 2500 University Drive NW, Calgary, AB T2N 1N4, Canada. ahmed.mostafa@cls.ab.ca.ORCID 0000-0001-5672-0144
Daniel E MeyersDepartment of Oncology, University of Calgary, 1331 29 Street NW, Calgary, AB T2N 4N2, Canada. daniel.meyers@ucalgary.ca.ORCID 0000-0002-7619-7327
Chandini M ThirukkumaranDepartment of Oncology, University of Calgary, 1331 29 Street NW, Calgary, AB T2N 4N2, Canada. cmthiruk@ucalgary.ca.
Peter J LiuFaculty of Medicine, University of Toronto, King's College Circle, Toronto, ON M5S 1A8, Canada. peterjr.liu@mail.utoronto.ca.ORCID 0000-0003-3608-750X
Kathy GrattonDepartment of Oncology, University of Calgary, 1331 29 Street NW, Calgary, AB T2N 4N2, Canada. kgratton@ucalgary.ca.
Jason SpurrellDepartment of Oncology, University of Calgary, 1331 29 Street NW, Calgary, AB T2N 4N2, Canada. scienceofkungfu@gmail.com.
Qiao ShiTom Baker Cancer Centre, 1331 29 Street NW, Calgary, AB T2N 4N2, Canada. qiao.shi@albertahealthservices.ca.
Satbir ThakurDepartment of Oncology, University of Calgary, 1331 29 Street NW, Calgary, AB T2N 4N2, Canada. sthakur@ucalgary.ca.
Don G MorrisDepartment of Oncology, University of Calgary, 1331 29 Street NW, Calgary, AB T2N 4N2, Canada. don.morris@albertahealthservices.ca.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

As the current efficacy of oncolytic viruses (OVs) as monotherapy is limited, exploration of OVs as part of a broader immunotherapeutic treatment strategy for cancer is necessary. Here, we investigated the ability for immune checkpoint blockade to enhance the efficacy of oncolytic reovirus (RV) for the treatment of breast cancer (BrCa). In vitro, oncolysis and cytokine production were assessed in human and murine BrCa cell lines following RV exposure. Furthermore, RV-induced upregulation of tumor cell PD-L1 was evaluated. In vivo, the immunocompetent, syngeneic EMT6 murine model of BrCa was employed to determine therapeutic and tumor-specific immune responses following treatment with RV, anti-PD-1 antibodies or in combination. RV-mediated oncolysis and cytokine production were observed following BrCa cell infection and RV upregulated tumor cell expression of PD-L1. In vivo, RV monotherapy significantly reduced disease burden and enhanced survival in treated mice, and was further enhanced by PD-1 blockade. RV therapy increased the number of intratumoral regulatory T cells, which was reversed by the addition of PD-1 blockade. Finally, dual treatment led to the generation of a systemic adaptive anti-tumor immune response evidenced by an increase in tumor-specific IFN-γ producing CD8⁺ T cells, and immunity from tumor re-challenge. The combination of PD-1 blockade and RV appears to be an efficacious immunotherapeutic strategy for the treatment of BrCa, and warrants further investigation in early-phase clinical trials.

Indexed as

breast cancerimmune checkpoint inhibitionimmunotherapyoncolytic virusesPD-1reovirus

Identifiers

PMID29914097
PMCPMC6025420

What OpenQuestion holds

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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.