Evidence map›Paper›PMID 23530114›Full record

ArticleOncotarget2013

Tumorigenic potential of circulating prostate tumor cells.

Filipe L F Carvalho, Brian W Simons, Emmanuel S Antonarakis, Zeshaan Rasheed, Nora Douglas, Daniela Villegas, William Matsui, David M Berman

Open access · hybridAbstract read
In one paragraph

Article in Oncotarget, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
3.3field-weighted citation impact, top 7% 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

20 citing papers in PubMed, 33 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Review
  5. Article
  6. Review
  7. Review
  8. Article
  9. Colorectal Cancer Blood-Based Biomarkers.Gastroenterology research and practice · 2017
    Review
  10. When Prostate Cancer Circulates in the Bloodstream.Diagnostics (Basel, Switzerland) · 2015
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. 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

8 authors at 2 institutions in 2 countries.

Filipe L F CarvalhoDepartment of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Brian W Simons
Emmanuel S Antonarakis
Zeshaan Rasheed
Nora Douglas
Daniela Villegas
William Matsui
David M Berman
Johns Hopkins Medicine · USJohns Hopkins University · US

Funding

Cellular diversity and clinical relevance of stem cells in pancreatic cancerR01CA150142 · NCI · JOHNS HOPKINS UNIVERSITY · PI MATSUI, WILLIAM H · 2011 to 2015
$1.7M
NCI NIH HHS R01 CA150142
6 · The paper itself

Abstract

Circulating tumor cells (CTCs) have received intense scientific scrutiny because they travel in the bloodstream and are therefore well situated to mediate hematogenous metastasis. However, the potential of CTCs to actually form new tumors has not been tested. Popular methods of isolating CTCs are biased towards larger, more differentiated, non-viable cells, creating a barrier to testing their tumor forming potential. Without relying on cell size or the expression of differentiation markers, our objective was to isolate viable prostate CTCs from mice and humans and assay their ability to initiate new tumors. Therefore, blood was collected from transgenic adenocarcinoma of the mouse prostate (TRAMP) mice and from human patients with metastatic castration-resistant prostate cancer (PCa). Gradient density centrifugation or red cell lysis was used to remove erythrocytes, and then leukocytes were depleted by magnetic separation using CD45 immunoaffinity beads. CTCs fractions from TRAMP mice and PCa patients were verified by immunocytochemical staining for cytokeratin 8 and EpCAM, and inoculated into immunodeficient mice. TRAMP tumor growth was monitored by palpation. Human tumor growth formation was monitored up to 8 months by ultrasensitive PSA assays performed on mouse serum. We found viable tumor cells present in the bloodstream that were successfully isolated from mice without relying on cell surface markers. Two out of nine immunodeficient mice inoculated with TRAMP CTCs developed massive liver metastases. CTCs were identified in blood from PCa patients but did not form tumors. In conclusion, viable CTCs can be isolated without relying on epithelial surface markers or size fractionation. TRAMP CTCs were tumorigenic, so CTCs isolated in this way contain viable tumor-initiating cells. Only two of nine hosts grew TRAMP tumors and none of the human CTCs formed tumors, which suggests that most CTCs have relatively low tumor-forming potential. Future studies should identify and target the highly tumorigenic cells.

Indexed as

AdenocarcinomaAgedAged, 80 and overAnimalsAntigens, NeoplasmBiomarkers, TumorCell Adhesion MoleculesCell Line, TumorCells, CulturedEpithelial Cell Adhesion MoleculeHumansImmunohistochemistryInterleukin Receptor Common gamma SubunitKeratin-8MaleMiceAntigens, NeoplasmBiomarkers, TumorCell Adhesion MoleculesEpithelial Cell Adhesion MoleculeIl2rg protein, mouseInterleukin Receptor Common gamma SubunitKeratin-8Prostate-Specific Antigen

Identifiers

PMID23530114
PMCPMC3717304
OpenAlexW2152853740

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.