Evidence map›Paper›PMID 39699762›Full record

SynthesisJournal of neuro-oncology2025

Treatment-induced ripple effect: a systematic review exploring the abscopal phenomenon in Glioblastoma multiforme.

Ali Haider Bangash, Prabhat Poudel, Khalid M Alshuqayfi, Mudassir Ahmed, Oluwaseun O Akinduro, Walid Ibn Essayed, Afshin Salehi, Rafael De la Garza Ramos, Reza Yassari, Harminder Singh and 2 more

Abstract readSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Journal of neuro-oncology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Article
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

12 authors.

Ali Haider BangashHhaider5 Research Group, Rawalpindi, Pakistan.ORCID http://orcid.org/0000-0002-8256-3194
Prabhat PoudelHhaider5 Research Group, Rawalpindi, Pakistan.ORCID http://orcid.org/0000-0001-9663-9930
Khalid M AlshuqayfiHhaider5 Research Group, Rawalpindi, Pakistan.ORCID http://orcid.org/0000-0002-8481-5754
Mudassir AhmedHhaider5 Research Group, Rawalpindi, Pakistan.
Oluwaseun O AkinduroDepartment of Neurosurgery, Mayo Clinic, Jacksonville, FL, USA.ORCID http://orcid.org/0000-0003-0110-5202
Walid Ibn EssayedDepartment of Neurosurgery, McGovern Medical School, The University of Texas Health Science Center, 6400 Fannin Street, Suite # 2800, Houston, TX, 77030, USA.ORCID http://orcid.org/0000-0003-4640-0563
Afshin SalehiDepartment of Neurosurgery, University of Nebraska Medical Center, Omaha, NE, USA.ORCID http://orcid.org/0000-0001-6314-1167
Rafael De la Garza RamosSpine Research Group, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA.ORCID http://orcid.org/0000-0002-5536-2514
Reza YassariSpine Research Group, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA.
Harminder SinghDepartment of Neurosurgery, Stanford University, Stanford, CA, USA.ORCID http://orcid.org/0000-0001-8985-4018
Jason P SheehanDepartment of Neurosurgery, University of Virginia, Charlottesville, VA, USA.
Yoshua EsquenaziDepartment of Neurosurgery, McGovern Medical School, The University of Texas Health Science Center, 6400 Fannin Street, Suite # 2800, Houston, TX, 77030, USA. Yoshua.EsquenaziLevy@uth.tmc.edu.ORCID http://orcid.org/0000-0002-9757-1453

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis systematic review aimed to collate and synthesize the available literature on the abscopal effect in Glioblastoma multiforme (GBM) neoplasms, focusing on the reported biochemical mechanisms driving the abscopal effect.

methodsA systematic search was conducted in PubMed, Cochrane Database of Systematic Reviews, and Epistemonikos from inception to May 1, 2023. Studies exploring the abscopal effect in GBM were included. The Clinical Relevance Assessment of Animal Preclinical research (RAA) tool was used to assess methodological quality of preclinical studies. Data on preclinical models, biochemical mechanisms, and outcomes were extracted and synthesized systrmatically.

resultsOut of a total of 7 studies, five preclinical studies met the inclusion criteria. The studies utilized various in vivo mouse models, including bilateral tumor models and immunohumanized mice. Key biochemical mechanisms identified included immunogenic cell death, danger-associated molecular pattern release, macrophage activation, and enhanced T cell responses. Combinatorial approaches involving oncolytic virotherapy, nanoparticle-based treatments, radiation therapy, and immune checkpoint inhibitors showed promise in inducing abscopal effects. Significant tumor growth inhibition and improved survival were reported in treated animals. However, the RAA analysis highlighted concerns regarding research transparency and internal validity across studies.

conclusionsThis systematic review highlighted the potential of the abscopal effect in GBM, demonstrating its ability to enhance anti-tumor immune responses both locally and systemically. The synergistic effects of combinatorial approaches showed promise for improving outcomes. However, the low methodological quality of existing studies underscored the need for more rigorous preclinical research. Future studies should focus on improving research transparency, exploring the abscopal effect in other primary CNS neoplasms, and translating these findings into clinical trials to assess safety and efficacy in humans.

Indexed as

Brain NeoplasmsGlioblastomaAnimalsDisease Models, AnimalHumansMiceOncolytic VirotherapyAbscopal effectCpGGlioblastomaMouseOncolytic adenovirusPrimary central nervous system tumor

Identifiers

What Socratic holds

Textmetadata
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 Socratic graph.