Evidence map›Paper›PMID 28178415›Full record

ArticleNano letters2017

Tumor-Penetrating Nanosystem Strongly Suppresses Breast Tumor Growth.

Shweta Sharma, Venkata Ramana Kotamraju, Tarmo Mölder, Allan Tobi, Tambet Teesalu, Erkki Ruoslahti

Abstract read
In one paragraph

Article in Nano letters, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 1 pooled it
5.8field-weighted citation impact, top 3% 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

40 citing papers in PubMed, 1 synthesis or guideline pooled it, 96 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Article
  6. Advancing Cancer-Targeted Nanotherapies with Tumor Homing Peptides.ACS pharmacology & translational science · 2025
    Review
  7. Article
  8. Article
  9. Review
  10. Peptide-Based Therapeutics in Cancer Therapy.Molecular biotechnology · 2024
    Review
  11. Review
  12. Review
  13. Article
  14. Review
  15. gC1qR: A New Target for Cancer Immunotherapy.Frontiers in immunology · 2023
    Review
  16. Review
  17. Review
  18. Review
  19. Combining nanomedicine and immune checkpoint therapy for cancer immunotherapy.Wiley interdisciplinary reviews. Nanomedicine and nanobiotechnology · 2022
    Review
  20. Mitochondrial Targeting Probes, Drug Conjugates, and Gene Therapeutics.Methods in molecular biology (Clifton, N.J.) · 2022
    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

6 authors at 3 institutions in 2 countries.

Shweta SharmaSanford-Burnham-Prebys Medical Discovery Institute, Cancer Research Center , La Jolla, California 92037, United States.
Venkata Ramana KotamrajuSanford-Burnham-Prebys Medical Discovery Institute, Cancer Research Center , La Jolla, California 92037, United States.
Tarmo MölderLaboratory of Cancer Biology, Institute of Biomedicine and Translational Medicine, University of Tartu , Tartu 50411, Estonia.
Allan TobiLaboratory of Cancer Biology, Institute of Biomedicine and Translational Medicine, University of Tartu , Tartu 50411, Estonia.
Tambet TeesaluSanford-Burnham-Prebys Medical Discovery Institute, Cancer Research Center , La Jolla, California 92037, United States.
Erkki RuoslahtiSanford-Burnham-Prebys Medical Discovery Institute, Cancer Research Center , La Jolla, California 92037, United States.ORCID 0000-0003-2496-3445
University of California, Santa Barbara · USUniversity of Tartu · EESanford Burnham Prebys Medical Discovery Institute · US

Funding

Tumor Microenvironment and Cancer ImmunologyP30CA030199 · NCI · SANFORD BURNHAM PREBYS MEDICAL DISCOVERY INSTITUTE · PI Michael Jackson · 1985 to 2026
$107.2M
A nanosystem for tumor treatment and imagingR01CA188883 · NCI · SANFORD BURNHAM PREBYS MEDICAL DISCOVERY INSTITUTE · PI RUOSLAHTI, ERKKI · 2014 to 2018
$2.0M
A NOVEL TARGETED DELIVERY SYSTEM FOR CANCER TREATMENT AND DIAGNOSISR44CA183287 · NCI · ENDURX PHARMACEUTICALS, INC. · PI BRAMHILL, DAVID, RUOSLAHTI, ERKKI · 2014 to 2016
$1.7M
NCI NIH HHS P30 CA030199NCI NIH HHS R01 CA188883NCI NIH HHS R44 CA183287Wellcome TrustWellcome Trust WT095077MA
6 · The paper itself

Abstract

Antiangiogenic and vascular disrupting compounds have shown promise in cancer therapy, but tend to be only partially effective. We previously reported a potent theranostic nanosystem that was highly effective in glioblastoma and breast cancer mouse models, retarding tumor growth and producing some cures [ Agemy , L. et al. Proc. Natl. Acad. Sci. U.S.A. 2011 , 108 , 17450 - 17455 . Agemy , L. et al. Mol. Ther. 2013 , 21 , 2195 - 2204 .]. The nanosystem consists of iron oxide NPs ("nanoworms") coated with a composite peptide with tumor-homing and pro-apoptotic domains. The homing component targets tumor vessels by binding to p32/gC1qR at the surface or tumor endothelial cells. We sought to further improve the efficacy nanosystem by searching for an optimally effective homing peptide that would also incorporate a tumor-penetrating function. To this effect, we tested a panel of candidate p32 binding peptides with a sequence motif that conveys tumor-penetrating activity (CendR motif). We identified a peptide designated as Linear TT1 (Lin TT1) (sequence: AKRGARSTA) as most effective in causing tumor homing and penetration of the nanosystem. This peptide had the lowest affinity for p32 among the peptides tested. The low affinity may have moderated the avidity effect from the multivalent presentation on nanoparticles (NPs), such that the NPs avoid getting trapped by the so-called "binding-site barrier", which can hinder tissue penetration of compounds with a high affinity for their receptors. Treatment of breast cancer mice with the LinTT1 nanosystem showed greatly improved efficacy compared to the original system. These results identify a promising treatment modality and underscore the value of tumor penetration effect in improving the efficacy tumor treatment.

Indexed as

Amino Acid SequenceAnimalsAntineoplastic AgentsApoptosisBreastBreast NeoplasmsCell Line, TumorDrug Delivery SystemsFemaleHumansMiceNanomedicineNanoparticlesPeptidesAntineoplastic AgentsPeptidesCancer nanomedicineC-end Ruleiron-oxide nanoparticlestargeted drug deliverytumor penetrating peptidevascular disrupting agent

Identifiers

PMID28178415
PMCPMC5819594
OpenAlexW2586772729

What OpenQuestion holds

Textmetadata
LicenceTDM
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.