Evidence map›Paper›PMID 14966529›Full record

ReviewPLoS biology2004

pRb inactivation in mammary cells reveals common mechanisms for tumor initiation and progression in divergent epithelia.

Karl Simin, Hua Wu, Lucy Lu, Dan Pinkel, Donna Albertson, Robert D Cardiff, Terry Van Dyke

Open access · goldAbstract readReview
In one paragraph

Review in PLoS biology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

34 citing papers in PubMed, 62 citations in OpenAlex.

  1. Frequent horizontal chromosome transfer between asexual fungal insect pathogens.Proceedings of the National Academy of Sciences of the United States of America · 2024
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  11. Quantitative proteomic analyses of mammary organoids reveals distinct signatures after exposure to environmental chemicals.Proceedings of the National Academy of Sciences of the United States of America · 2016
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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 4 institutions in 1 country.

Karl SiminDepartment of Genetics, Lineberger Comprehensive Cancer Center, The University of North Carolina School of Medicine, Chapel Hill, USA.
Hua Wu
Lucy Lu
Dan Pinkel
Donna Albertson
Robert D Cardiff
Terry Van Dyke
University of North Carolina at Chapel Hill · USUniversity of California, San Francisco · USUNC Lineberger Comprehensive Cancer CenterUniversity of California, Davis · US

Funding

Integrated Training in Cancer Model SystemsT32CA009156 · NCI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI DER, CHANNING J. · 1985 to 2020
$19.7M
MICROARRAY BASED SCANNING OF THE MOUSE GENOMEU01CA084118 · NCI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI ALBERTSON, DONNA G · 1999 to 2008
$3.9M
SV40 T ANTIGEN MEDIATED ONCOGENESIS IN TRANSGENIC MICER01CA046283 · NCI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI VAN DYKE, TERRY A · 1988 to 2008
$3.1M
NCI NIH HHS 5 R01 CA46283-15NCI NIH HHS CA84118NCI NIH HHS R01 CA046283NCI NIH HHS T32 CA009156NCI NIH HHS T32CA09156NCI NIH HHS U01 CA084118
6 · The paper itself

Abstract

Retinoblastoma 1 (pRb) and the related pocket proteins, retinoblastoma-like 1 (p107) and retinoblastoma-like 2 (p130) (pRb(f), collectively), play a pivotal role in regulating eukaryotic cell cycle progression, apoptosis, and terminal differentiation. While aberrations in the pRb-signaling pathway are common in human cancers, the consequence of pRb(f) loss in the mammary gland has not been directly assayed in vivo. We reported previously that inactivating these critical cell cycle regulators in divergent cell types, either brain epithelium or astrocytes, abrogates the cell cycle restriction point, leading to increased cell proliferation and apoptosis, and predisposing to cancer. Here we report that mouse mammary epithelium is similar in its requirements for pRb(f) function; Rb(f) inactivation by T(121), a fragment of SV40 T antigen that binds to and inactivates pRb(f) proteins, increases proliferation and apoptosis. Mammary adenocarcinomas form within 16 mo. Most apoptosis is regulated by p53, which has no impact on proliferation, and heterozygosity for a p53 null allele significantly shortens tumor latency. Most tumors in p53 heterozygous mice undergo loss of the wild-type p53 allele. We show that the mechanism of p53 loss of heterozygosity is not simply the consequence of Chromosome 11 aneuploidy and further that chromosomal instability subsequent to p53 loss is minimal. The mechanisms for pRb and p53 tumor suppression in the epithelia of two distinct tissues, mammary gland and brain, are indistinguishable. Further, this study has produced a highly penetrant breast cancer model based on aberrations commonly observed in the human disease.

Indexed as

Gene Expression RegulationGene Expression Regulation, NeoplasticGenes, RetinoblastomaBrain NeoplasmsBreastBreast NeoplasmsCell DifferentiationCell DivisionDisease ProgressionEpithelial CellsFemaleHumans

Identifiers

PMID14966529
PMCPMC340938
OpenAlexW1974258814

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.