Evidence map›Paper›PMID 21806944›Full record

ArticleGastroenterology2011

Identification of cancer stem cells in human gastrointestinal carcinoid and neuroendocrine tumors.

Puja Gaur, Eric L Sceusi, Shaija Samuel, Ling Xia, Fan Fan, Yunfei Zhou, Jia Lu, Federico Tozzi, Gabriel Lopez-Berestein, Pablo Vivas-Mejia and 8 more

Open access · bronzeAbstract read
In one paragraph

Article in Gastroenterology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
5.6field-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

37 citing papers in PubMed, 76 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Review
  17. Article
  18. Review
  19. Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

18 authors at 2 institutions in 1 country.

Puja GaurDepartment of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77230-1402, USA.
Eric L Sceusi
Shaija Samuel
Ling Xia
Fan Fan
Yunfei Zhou
Jia Lu
Federico Tozzi
Gabriel Lopez-Berestein
Pablo Vivas-Mejia
Asif Rashid
Jason B Fleming
Eddie K Abdalla
Steven A Curley
Jean-Nicolas Vauthey
Anil K Sood
James C Yao
Lee M Ellis
The University of Texas MD Anderson Cancer Center · USGynecologic Oncology Group · US

Funding

Tumor Evolution and Metastasis ProgramP30CA016672 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI Scott Kopetz · 1985 to 2026
$290.8M
TRAINING OF ACADEMIC SURGICAL ONCOLOGISTST32CA009599 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI Ashley M Holder, Jennifer A. Wargo · 1988 to 2026
$13.2M
Texas Center for Cancer NanomedicineU54CA151668 · NCI · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI FERRARI, MAURO · 2010 to 2014
$12.4M
Targeting CDK4 in TGS-B Inactivated Gastrointestinal CancersP01CA130821 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI MISHRA, LOPA · 2008 to 2013
$6.9M
NCI NIH HHS CA016672NCI NIH HHS CA151668NCI NIH HHS P01 CA130821NCI NIH HHS P30 CA016672NCI NIH HHS T32 CA009599NCI NIH HHS U54 CA151668
6 · The paper itself

Abstract

BACKGROUND &

aimsMetastatic gastrointestinal neuroendocrine tumors (NETs) frequently are refractory to chemotherapy. Chemoresistance in various malignancies has been attributed to cancer stem cells (CSCs). We sought to identify gastrointestinal neuroendocrine CSCs (N-CSCs) in surgical specimens and a NET cell line and to characterize novel N-CSC therapeutic targets.

methodsHuman gastrointestinal NETs were evaluated for CSCs using the Aldefluor (Stemcell Technologies, Vancouver, Canada) assay. An in vitro, sphere-forming assay was performed on primary NET cells. CNDT2.5, a human midgut carcinoid cell line, was used for in vitro (sphere-formation) and in vivo (tumorigenicity assays) CSC studies. N-CSC protein expression was characterized using Western blotting. In vivo, systemic short interfering RNA administration targeted Src.

resultsBy using the Aldefluor assay, aldehyde dehydrogenase-positive (ALDH+) cells comprised 5.8% ± 1.4% (mean ± standard error of the mean) of cells from 19 patient samples. Although many primary cell lines failed to grow, CNDT96 ALDH+ cells formed spheres in anchorage-independent conditions, whereas ALDH- cells did not. CNDT2.5 ALDH+ cells formed spheres, whereas ALDH- cells did not. In vivo, ALDH+ CNDT2.5 cells generated more tumors, with shorter latency than ALDH- or sham-sorted cells. Compared with non-CSCs, ALDH+ cells demonstrated increased expression of activated Src, Erk, Akt, and mammalian target of rapamycin (mTOR). In vivo, anti-Src short interfering RNA treatment of ALDH+ tumors reduced tumor mass by 91%.

conclusionsCSCs are present in NETs, as shown by in vitro sphere formation and in vivo tumorigenicity assays. Src was activated in N-CSCs and represents a potential therapeutic target in gastrointestinal NETs.

Indexed as

Aldehyde DehydrogenaseCarcinogenicity TestsCarcinoid TumorCell Line, TumorCells, CulturedCSK Tyrosine-Protein KinaseGastrointestinal NeoplasmsHumansIn Vitro TechniquesNeoplastic Stem CellsNeuroendocrine TumorsProtein-Tyrosine KinasesSignal TransductionSirolimussrc-Family KinasesAldehyde DehydrogenaseCSK protein, humanCSK Tyrosine-Protein KinaseProtein-Tyrosine KinasesSirolimussrc-Family Kinases

Identifiers

PMID21806944
PMCPMC3202668
OpenAlexW2074867245

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.