Evidence map›Paper›PMID 19729837›Full record

ArticleThe Journal of clinical investigation2009

A simple biological imaging system for detecting viable human circulating tumor cells.

Toru Kojima, Yuuri Hashimoto, Yuichi Watanabe, Shunsuke Kagawa, Futoshi Uno, Shinji Kuroda, Hiroshi Tazawa, Satoru Kyo, Hiroyuki Mizuguchi, Yasuo Urata and 2 more

Open access · bronzeAbstract readEvaluation Study
In one paragraph

Article in The Journal of clinical investigation, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed
4.6field-weighted citation impact, top 4% 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

65 citing papers in PubMed, 113 citations in OpenAlex.

  1. Trial
  2. Liquid biopsy in bladder cancer: towards precision oncology.Journal of translational medicine · 2026
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  19. Circulating Tumor Cells for Glioma.Frontiers in oncology · 2021
    Review
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5 more citing papers are in PubMed but not listed here.

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 at 5 institutions in 2 countries.

Toru KojimaDivision of Surgical Oncology, Department of Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
Yuuri Hashimoto
Yuichi Watanabe
Shunsuke Kagawa
Futoshi Uno
Shinji Kuroda
Hiroshi Tazawa
Satoru Kyo
Hiroyuki Mizuguchi
Yasuo Urata
Noriaki Tanaka
Toshiyoshi Fujiwara
Okayama University · JPOkayama University Hospital · JPKanazawa University · JPOncolys BioPharma (Japan) · JPOsaka University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The presence of circulating tumor cells (CTCs) in the peripheral blood is associated with short survival, making the detection of CTCs clinically useful as a prognostic factor of disease outcome and/or a surrogate marker of treatment response. Recent technical advances in immunocytometric analysis and quantitative real-time PCR have made it possible to detect a few CTCs in the blood; however, there is no sensitive assay to specifically detect viable CTCs. Here, we report what we believe to be a new approach to visually detect live human CTCs among millions of peripheral blood leukocytes, using a telomerase-specific replication-selective adenovirus expressing GFP. First, we constructed a GFP-expressing attenuated adenovirus, in which the telomerase promoter regulates viral replication (OBP-401; TelomeScan). We then used OBP-401 to establish a simple ex vivo method that was able to detect viable human CTCs in the peripheral blood. The detection method involved a 3-step procedure, including the lysis of rbc, the subsequent addition of OBP-401 to the cell pellets, and an automated scan using fluorescence microscopy. OBP-401 infection increased the signal-to-background ratio as a tumor-specific probe, because the fluorescent signal was amplified only in viable, infected human tumor cells, by viral replication. This GFP-expressing virus-based method is remarkably simple and allows precise enumeration of CTCs.

Indexed as

Neoplastic Cells, CirculatingAdenoviridaeCell Line, TumorDiagnostic ImagingGreen Fluorescent ProteinsHumansMicroscopy, FluorescenceGreen Fluorescent Proteins

Identifiers

PMID19729837
PMCPMC2752068
OpenAlexW2085277301

What OpenQuestion 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 OpenQuestion graph.