Evidence map›Paper›PMID 23818760›Full record

ArticleDrug design, development and therapy2013

Drug-resistant colon cancer cells produce high carcinoembryonic antigen and might not be cancer-initiating cells.

Hsin-chung Lee, Qing-Dong Ling, Wan-Chun Yu, Chunh-Ming Hung, Ta-Chun Kao, Yi-Wei Huang, Akon Higuchi

Open access · goldAbstract read
In one paragraph

Article in Drug design, development and therapy, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
0.3field-weighted citation impact, top 38% 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

10 citing papers in PubMed, 12 citations in OpenAlex.

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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

7 authors at 2 institutions in 2 countries.

Hsin-chung LeeGraduate Institute of Systems Biology and Bioinformatics, National Central University, Jhongli, Taoyuan.
Qing-Dong Ling
Wan-Chun Yu
Chunh-Ming Hung
Ta-Chun Kao
Yi-Wei Huang
Akon Higuchi
National Central University · TWCathay General Hospital · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeWe evaluated the higher levels of carcinoembryonic antigen (CEA) secreted by the LoVo human colon carcinoma cells in a medium containing anticancer drugs. Drug-resistant LoVo cells were analyzed by subcutaneously xenotransplanting them into mice. The aim of this study was to evaluate whether the drug-resistant cells isolated in this study were cancer-initiating cells, known also as cancer stem cells (CSCs).

methodsThe production of CEA was investigated in LoVo cells that were cultured with 0-10 mM of anticancer drugs, and we evaluated the increase in CEA production by the LoVo cells that were stimulated by anticancer drug treatment. The expression of several CSC markers in LoVo cells treated with anticancer drugs was also evaluated. Following anticancer drug treatment, LoVo cells were injected subcutaneously into the flanks of severe combined immunodeficiency mice in order to evaluate the CSC fraction.

resultsProduction of CEA by LoVo cells was stimulated by the addition of anticancer drugs. Drug-resistant LoVo cells expressed lower levels of CSC markers, and LoVo cells treated with any of the anticancer drugs tested did not generate tumors within 8 weeks from when the cells were injected subcutaneously into severe combined immunodeficiency mice. These results suggest that the drug-resistant LoVo cells have a smaller population of CSCs than the untreated LoVo cells.

conclusionProduction of CEA by LoVo cells can be stimulated by the addition of anticancer drugs. The drug-resistant subpopulation of LoVo colon cancer cells could stimulate the production of CEA, but these cells did not act as CSCs in in vivo tumor generation experiments.

Indexed as

AC133 AntigenAnimalsAntigens, CDAntineoplastic AgentsCarcinoembryonic AntigenCell Line, TumorCell SizeCell SurvivalColonic NeoplasmsDrug Resistance, NeoplasmGlycoproteinsHumansMiceMice, SCIDNeoplastic Stem CellsPeptidesAC133 AntigenAntigens, CDAntineoplastic AgentsCarcinoembryonic AntigenGlycoproteinsPeptidesPROM1 protein, humanProm1 protein, mouse5-fluorouracilCD133colon cancer celldrug treatmentstem cell

Identifiers

PMID23818760
PMCPMC3693723
OpenAlexW2005910842

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.