Evidence map›Paper›PMID 28839238›Full record

ArticleNature communications2017

In vivo cation exchange in quantum dots for tumor-specific imaging.

Xiangyou Liu, Gary B Braun, Mingde Qin, Erkki Ruoslahti, Kazuki N Sugahara

Abstract read
In one paragraph

Article in Nature communications, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing 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

24 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Nanomedicine in cancer therapy.Signal transduction and targeted therapy · 2023
    Review
  8. Article
  9. Nanomaterial-based contrast agents.Nature reviews. Methods primers · 2023
    Article
  10. Photoelectrochemical biosensor based on SiWFrontiers in bioengineering and biotechnology · 2023
    Article
  11. The Role of Optical Imaging in Translational Nanomedicine.Journal of functional biomaterials · 2022
    Review
  12. Molecular ZIP codes in targeted drug delivery.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Review
  13. Review
  14. Article
  15. Review
  16. Review
  17. Bone Morphogenetic Protein-2 Conjugated to Quantum DotNanomaterials (Basel, Switzerland) · 2020
    Article
  18. Review
  19. Review
  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

5 authors.

Xiangyou LiuCancer Research Center, Sanford Burnham Prebys Medical Discovery Institute, 10901 N Torrey Pines Road, La Jolla, California, 92037, USA.
Gary B BraunCancer Research Center, Sanford Burnham Prebys Medical Discovery Institute, 10901 N Torrey Pines Road, La Jolla, California, 92037, USA. gbraun5468@gmail.com.
Mingde QinProgram of Materials Science and Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, California, 92093, USA.
Erkki RuoslahtiCancer Research Center, Sanford Burnham Prebys Medical Discovery Institute, 10901 N Torrey Pines Road, La Jolla, California, 92037, USA.
Kazuki N SugaharaCancer Research Center, Sanford Burnham Prebys Medical Discovery Institute, 10901 N Torrey Pines Road, La Jolla, California, 92037, USA. sugahara@sbpdiscovery.org.

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
Tumor Penetrating Peptides for Cancer TargetingR01CA152327 · NCI · SANFORD BURNHAM PREBYS MEDICAL DISCOVERY INSTITUTE · PI RUOSLAHTI, ERKKI · 2011 to 2015
$2.0M
The role of fibroblasts in the activities of tissue penetrating peptidesR01CA167174 · NCI · SANFORD BURNHAM PREBYS MEDICAL DISCOVERY INSTITUTE · PI SUGAHARA, KAZUKI · 2012 to 2016
$1.9M
NCI NIH HHS P30 CA030199NCI NIH HHS R01 CA152327NCI NIH HHS R01 CA167174NCI NIH HHS R01 CA188883
6 · The paper itself

Abstract

In vivo tumor imaging with nanoprobes suffers from poor tumor specificity. Here, we introduce a nanosystem, which allows selective background quenching to gain exceptionally tumor-specific signals. The system uses near-infrared quantum dots and a membrane-impermeable etchant, which serves as a cation donor. The etchant rapidly quenches the quantum dots through cation exchange (ionic etching), and facilitates renal clearance of metal ions released from the quantum dots. The quantum dots are intravenously delivered into orthotopic breast and pancreas tumors in mice by using the tumor-penetrating iRGD peptide. Subsequent etching quenches excess quantum dots, leaving a highly tumor-specific signal provided by the intact quantum dots remaining in the extravascular tumor cells and fibroblasts. No toxicity is noted. The system also facilitates the detection of peritoneal tumors with high specificity upon intraperitoneal tumor targeting and selective etching of excess untargeted quantum dots. In vivo cation exchange may be a promising strategy to enhance specificity of tumor imaging.The imaging of tumors in vivo using nanoprobes has been challenging due to the lack of sufficient tumor specificity. Here, the authors develop a tumor-specific quantum dot system that permits in vivo cation exchange to achieve selective background quenching and high tumor-specific imaging.

Indexed as

Quantum DotsAnimalsCationsCell Line, TumorDiagnostic ImagingHumansMiceNanomedicineNeoplasmsReproducibility of ResultsSensitivity and SpecificityTransplantation, HeterologousCations

Identifiers

PMID28839238
PMCPMC5571182

What OpenQuestion holds

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Registered trials

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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.