Evidence map›Paper›PMID 22189618›Full record

ArticleThe American journal of pathology2012

ROCK inhibitor and feeder cells induce the conditional reprogramming of epithelial cells.

Xuefeng Liu, Virginie Ory, Sandra Chapman, Hang Yuan, Chris Albanese, Bhaskar Kallakury, Olga A Timofeeva, Caitlin Nealon, Aleksandra Dakic, Vera Simic and 6 more

Open access · bronzeAbstract read
In one paragraph

Article in The American journal of pathology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 522 papers.

0numbers the graph read from it
0cells of the map it votes in
522citing papers in PubMed
10.2field-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

522 citing papers in PubMed, 732 citations in OpenAlex.

  1. Article
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  4. Preclinical human models of primary ciliary dyskinesia.European respiratory review : an official journal of the European Respiratory Society · 2026
    Review
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462 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

16 authors at 4 institutions in 1 country.

Xuefeng LiuDepartment of Pathology, Lombardi Comprehensive Cancer Center, Georgetown University Medical School, Washington, DC 20057, USA.
Virginie Ory
Sandra Chapman
Hang Yuan
Chris Albanese
Bhaskar Kallakury
Olga A Timofeeva
Caitlin Nealon
Aleksandra Dakic
Vera Simic
Bassem R Haddad
Johng S Rhim
Anatoly Dritschilo
Anna Riegel
Alison McBride
Richard Schlegel
Georgetown University · USGeorgetown University Medical Center · USNational Institutes of Health · USUniformed Services University of the Health Sciences · US

Funding

Tissue Culture Shared ResourceP30CA051008 · NCI · GEORGETOWN UNIVERSITY · PI Louis M Weiner · 1990 to 2026
$71.5M
Role of AIB1 in malignant progressionR01CA113477 · NCI · GEORGETOWN UNIVERSITY · PI RIEGEL, ANNA TATE · 2005 to 2015
$2.9M
Efficient Immortalization of Primary Human KeratinocytesZIAAI001145 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI MCBRIDE, ALISON · 2011 to 2025
$2.5M
HPV E6 protein regulation of the hTERT promoterR01CA106400 · NCI · GEORGETOWN UNIVERSITY · PI SCHLEGEL, RICHARD · 2004 to 2008
$1.6M
Comprehensive MRI, MRS and Molecular Analyses: Pten-based Prostate Cancer ModelsR01CA129003 · NCI · GEORGETOWN UNIVERSITY · PI ALBANESE, CHRISTOPHER · 2007 to 2012
$1.4M
Emerging Papillomaviruses in Immunosuppressed DogsR01RR032315 · NCRR · GEORGETOWN UNIVERSITY · PI SCHLEGEL, RICHARD · 2011 to 2011
$399k
NCI NIH HHS 5P30CA051008NCI NIH HHS P30 CA051008NCI NIH HHS R01 CA106400NCI NIH HHS R01 CA113477NCI NIH HHS R01 CA129003NCRR NIH HHS R01 RR032315
6 · The paper itself

Abstract

We demonstrate that a Rho kinase inhibitor (Y-27632), in combination with fibroblast feeder cells, induces normal and tumor epithelial cells from many tissues to proliferate indefinitely in vitro, without transduction of exogenous viral or cellular genes. Primary prostate and mammary cells, for example, are reprogrammed toward a basaloid, stem-like phenotype and form well-organized prostaspheres and mammospheres in Matrigel. However, in contrast to the selection of rare stem-like cells, the described growth conditions can generate 2 × 10(6) cells in 5 to 6 days from needle biopsies, and can generate cultures from cryopreserved tissue and from fewer than four viable cells. Continued cell proliferation is dependent on both feeder cells and Y-27632, and the conditionally reprogrammed cells (CRCs) retain a normal karyotype and remain nontumorigenic. This technique also efficiently establishes cell cultures from human and rodent tumors. For example, CRCs established from human prostate adenocarcinoma displayed instability of chromosome 13, proliferated abnormally in Matrigel, and formed tumors in mice with severe combined immunodeficiency. The ability to rapidly generate many tumor cells from small biopsy specimens and frozen tissue provides significant opportunities for cell-based diagnostics and therapeutics (including chemosensitivity testing) and greatly expands the value of biobanking. In addition, the CRC method allows for the genetic manipulation of epithelial cells ex vivo and their subsequent evaluation in vivo in the same host.

Indexed as

AmidesAnimalsBreastCell Culture TechniquesCell ProliferationCellular ReprogrammingCollagenDrug CombinationsEnzyme InhibitorsEpithelial CellsFeeder CellsFemaleHumansLamininMaleMiceAmidesCollagenDrug CombinationsEnzyme InhibitorsLamininmatrigelProteoglycansPyridinesrho-Associated KinasesY 27632

Identifiers

PMID22189618
PMCPMC3349876
OpenAlexW1998914462

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.