Evidence map›Paper›PMID 19336570›Full record

ArticleCancer research2009

Aldehyde dehydrogenase 1 is a marker for normal and malignant human colonic stem cells (SC) and tracks SC overpopulation during colon tumorigenesis.

Emina H Huang, Mark J Hynes, Tao Zhang, Christophe Ginestier, Gabriela Dontu, Henry Appelman, Jeremy Z Fields, Max S Wicha, Bruce M Boman

Open access · bronzeAbstract read
In one paragraph

Article in Cancer research, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 579 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
579citing papers in PubMed, 4 pooled it
42.8field-weighted citation impact, top 1% 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

579 citing papers in PubMed, 4 syntheses or guidelines pooled it, 1,027 citations in OpenAlex.

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519 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

9 authors at 3 institutions in 1 country.

Emina H HuangDepartment of Surgery, University of Florida, Gainesville, Florida, USA.
Mark J Hynes
Tao Zhang
Christophe Ginestier
Gabriela Dontu
Henry Appelman
Jeremy Z Fields
Max S Wicha
Bruce M Boman
Michigan Center for Translational Pathology · USUniversity of Michigan–Ann Arbor · USThomas Jefferson University · US

Funding

RAGE and modulation of tumor propertiesK08CA091975 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI HUANG, EMINA HUI-NA · 2002 to 2006
$654k
MARKERS FOR STEM CELL-LIKE COLONIC CRYPT BASE CELLSR21DK062146 · NIDDK · THOMAS JEFFERSON UNIVERSITY · PI BOMAN, BRUCE M · 2003 to 2004
$314k
NCI NIH HHS K08 CA091975NIDDK NIH HHS R21 DK062146PHS HHS 5R210K62146
6 · The paper itself

Abstract

Although the concept that cancers originate from stem cells (SC) is becoming scientifically accepted, mechanisms by which SC contribute to tumor initiation and progression are largely unknown. For colorectal cancer (CRC), investigation of this problem has been hindered by a paucity of specific markers for identification and isolation of SC from normal and malignant colon. Accordingly, aldehyde dehydrogenase 1 (ALDH1) was investigated as a possible marker for identifying colonic SC and for tracking them during cancer progression. Immunostaining showed that ALDH1(+) cells are sparse and limited to the normal crypt bottom, where SCs reside. During progression from normal epithelium to mutant (APC) epithelium to adenoma, ALDH1(+) cells increased in number and became distributed farther up the crypt. CD133(+) and CD44(+) cells, which are more numerous and broadly distributed in normal crypts, showed similar changes during tumorigenesis. Flow cytometric isolation of cancer cells based on enzymatic activity of ALDH (Aldefluor assay) and implantation of these cells in nonobese diabetic-severe combined immunodeficient mice (a) generated xenograft tumors (Aldefluor(-) cells did not), (b) generated them after implanting as few as 25 cells, and (c) generated them dose dependently. Further isolation of cancer cells using a second marker (CD44(+) or CD133(+) serially) only modestly increased enrichment based on tumor-initiating ability. Thus, ALDH1 seems to be a specific marker for identifying, isolating, and tracking human colonic SC during CRC development. These findings also support our original hypothesis, derived previously from mathematical modeling of crypt dynamics, that progressive colonic SC overpopulation occurs during colon tumorigenesis and drives CRC development.

Indexed as

AC133 AntigenAldehyde DehydrogenaseAldehyde Dehydrogenase 1 FamilyAnimalsAntigens, CDBiomarkers, TumorCell Transformation, NeoplasticColonColonic NeoplasmsEpithelial CellsFlow CytometryGlycoproteinsHumansHyaluronan ReceptorsImmunohistochemistryIsoenzymesAC133 AntigenAldehyde DehydrogenaseAldehyde Dehydrogenase 1 FamilyALDH1A1 protein, humanALDH1A1 protein, mouseAntigens, CDBiomarkers, TumorCD44 protein, humanGlycoproteinsHyaluronan ReceptorsIsoenzymesPeptidesPROM1 protein, humanProm1 protein, mouseRetinal Dehydrogenase

Identifiers

PMID19336570
PMCPMC2789401
OpenAlexW2151386025

What OpenQuestion holds

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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.