Evidence map›Paper›PMID 20473330›Full record

ArticleOncogene2010

Therapeutic CDK4/6 inhibition in breast cancer: key mechanisms of response and failure.

J L Dean, C Thangavel, A K McClendon, C A Reed, E S Knudsen

Abstract read
PubMed Publisher
In one paragraph

Article in Oncogene, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 252 papers.

0numbers the graph read from it
0cells of the map it votes in
252citing papers in PubMed
9.4field-weighted citation impact, top 2% 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

252 citing papers in PubMed, 397 citations in OpenAlex.

  1. Trial
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  3. Cyclin E1 Expression and Palbociclib Efficacy in Previously Treated Hormone Receptor-Positive Metastatic Breast Cancer.Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2019
    Trial
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  7. Cancers · 2026
    Review
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192 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

5 authors at 2 institutions in 1 country.

J L DeanKimmel Cancer Center, Philadelphia, PA, USA.
C Thangavel
A K McClendon
C A Reed
E S Knudsen
Thomas Jefferson University · USSidney Kimmel Cancer Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A hallmark of cancer is the deregulation of cell-cycle machinery, ultimately facilitating aberrant proliferation that fuels tumorigenesis and disease progression. Particularly, in breast cancers, cyclin D1 has a crucial role in the development of disease. Recently, a highly specific inhibitor of CDK4/6 activity (PD-0332991) has been developed that may have efficacy in the treatment of breast cancer. To interrogate the utility of PD-0332991 in treating breast cancers, therapeutic response was evaluated on a panel of breast cancer cell lines. These analyses showed that the chronic loss of Rb is specifically associated with evolution to a CDK4/6-independent state and, ultimately, resistance to PD-0332991. However, to interrogate the functional consequence of Rb directly, knockdown experiments were performed in models that represent immortalized mammary epithelia and multiple subtypes of breast cancer. These studies showed a highly specific role for Rb in mediating the response to CDK4/6 inhibition that was dependent on transcriptional repression manifest through E2F, and the ability to attenuate CDK2 activity. Acquired resistance to PD-03322991 was specifically associated with attenuation of CDK2 inhibitors, indicating that redundancy in CDK functions represents a determinant of therapeutic failure. Despite these caveats, in specific models, PD-0332991 was a particularly effective therapy, which induced Rb-dependent cytostasis. Combined, these findings indicate the critical importance of fully understanding cell-cycle regulatory pathways in directing the utilization of CDK inhibitors in the clinic.

Indexed as

Breast NeoplasmsCell Line, TumorCyclin-Dependent Kinase 4Cyclin-Dependent Kinase 6FemaleHumansPiperazinesProtein Kinase InhibitorsPyridinesCyclin-Dependent Kinase 4Cyclin-Dependent Kinase 6palbociclibPiperazinesProtein Kinase InhibitorsPyridines

Identifiers

PMID20473330
OpenAlexW1984245506

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.