Evidence map›Paper›PMID 31136074›Full record

ArticlePediatric blood & cancer2019

Vascular modulation through exercise improves chemotherapy efficacy in Ewing sarcoma.

Miriam B G Morrell, Claudia Alvarez-Florez, Aiqian Zhang, Eugenie S Kleinerman, Hannah Savage, Enrica Marmonti, Minjeong Park, Angela Shaw, Keri L Schadler

Abstract read
In one paragraph

Article in Pediatric blood & cancer, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 3 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

27 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. The effect of aerobic exercise on tumour blood delivery: a systematic review and meta-analysis.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2022
    Pooled it
  3. Pooled it
  4. Review
  5. Article
  6. Article
  7. Tumor Signatures of Physical Fitness: Insights from a Preclinical Model.Medicine and science in sports and exercise · 2026
    Article
  8. Review
  9. Article
  10. Review
  11. Review
  12. Review
  13. Signal Transduction and Gene Regulation in the Endothelium.Cold Spring Harbor perspectives in medicine · 2023
    Review
  14. Review
  15. Article
  16. Article
  17. Review
  18. Review
  19. Strategies to Prevent or Remediate Cancer and Treatment-Related Aging.Journal of the National Cancer Institute · 2021
    Article
  20. 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

9 authors.

Miriam B G MorrellDepartment of Pediatric Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.ORCID 0000-0001-8183-5795
Claudia Alvarez-FlorezDepartment of Pediatric Research, The University of Texas MD Anderson Cancer Center, Houston, Texas.
Aiqian ZhangDepartment of Pediatric Research, The University of Texas MD Anderson Cancer Center, Houston, Texas.
Eugenie S KleinermanDepartment of Pediatric Research, The University of Texas MD Anderson Cancer Center, Houston, Texas.
Hannah SavageDepartment of Pediatric Research, The University of Texas MD Anderson Cancer Center, Houston, Texas.
Enrica MarmontiDepartment of Pediatric Research, The University of Texas MD Anderson Cancer Center, Houston, Texas.
Minjeong ParkDepartment of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, Texas.
Angela ShawDepartment of Pediatric Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.
Keri L SchadlerDepartment of Pediatric Research, The University of Texas MD Anderson Cancer Center, Houston, Texas.ORCID 0000-0002-1675-0514

Funding

Tumor Evolution and Metastasis ProgramP30CA016672 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI Fabien Delerue · 1985 to 2026
$290.8M
NCI NIH HHS P30 CA016672
6 · The paper itself

Abstract

Recent studies in mouse models of cancer have shown that exercise improves tumor vascular function, thereby improving chemotherapy delivery and efficacy. However, the mechanisms underlying this improvement remain unclear and the effect of exercise on Ewing sarcoma (ES), a pediatric bone and soft tissue cancer, is unknown. The effect of exercise on tumor vascular hyperpermeability, which inversely correlates with drug delivery to the tumor, has also not been evaluated. We hypothesized that exercise improves chemotherapy efficacy by enhancing its delivery through improving tumor vascular permeability. We treated ES-bearing mice with doxorubicin with or without moderate treadmill exercise. Exercise did not significantly alter ES tumor vessel morphology. However, compared to control mice, tumors of exercised mice had significantly reduced hyperpermeability, significantly decreased hypoxia, and higher doxorubicin penetration. Compared to doxorubicin alone, doxorubicin plus exercise inhibited tumor growth more efficiently. We evaluated endothelial cell sphingosine-1-phosphate receptors 1 and 2 (S1PR1 and S1PR2) as potential mediators of the improved vascular permeability and increased function afforded by exercise. Relative to tumors from control mice, vessels in tumors from exercised mice had increased S1PR1 and decreased S1PR2 expression. Our results support a model in which exercise remodels ES vasculature to reduce vessel hyperpermeability, potentially via modulation of S1PR1 and S1PR2, thereby improving doxorubicin delivery and inhibiting tumor growth more than doxorubicin alone does. Our data suggest moderate aerobic exercise should be tested in clinical trials as a potentially useful adjuvant to standard chemotherapy for patients with ES.

Indexed as

Bone NeoplasmsCapillary PermeabilityPhysical Conditioning, AnimalSarcoma, EwingAnimalsCell Line, TumorDoxorubicinEndothelial CellsHumansMaleMiceMice, NudeNeoplasm ProteinsSphingosine-1-Phosphate ReceptorsXenograft Model Antitumor AssaysDoxorubicinNeoplasm ProteinsS1pr1 protein, mousesphingosine-1-phosphate receptor-2, mouseSphingosine-1-Phosphate Receptorsalternative medicineangiogenesischemotherapy deliveryEwing sarcomaexerciseoncologypediatric oncologyS1PR

Identifiers

PMID31136074
PMCPMC6646082

What OpenQuestion holds

Textmetadata
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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.