Evidence map›Paper›PMID 34099663›Full record

ArticleNature communications2021

Clinical CDK4/6 inhibitors induce selective and immediate dissociation of p21 from cyclin D-CDK4 to inhibit CDK2.

Lindsey R Pack, Leighton H Daigh, Mingyu Chung, Tobias Meyer

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed
11.6field-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

60 citing papers in PubMed, 101 citations in OpenAlex.

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  9. HES1 oscillations are required for cell cycle reentry in oestrogen receptor-positive breast cancer cells.Proceedings of the National Academy of Sciences of the United States of America · 2026
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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

4 authors at 1 institution in 1 country.

Lindsey R Pack *Department of Chemical and Systems Biology, Stanford University, Stanford, CA, USA.
Leighton H Daigh *Department of Chemical and Systems Biology, Stanford University, Stanford, CA, USA.ORCID 0000-0001-6914-0229
Mingyu ChungDepartment of Chemical and Systems Biology, Stanford University, Stanford, CA, USA.
Tobias MeyerDepartment of Chemical and Systems Biology, Stanford University, Stanford, CA, USA. tobias1@stanford.edu.ORCID 0000-0003-4339-3804
Stanford University · US

Funding

MEDICAL SCIENTIST TRAINING PROGRAMT32GM007365 · NIGMS · STANFORD UNIVERSITY · PI CHUA, KATRIN F · 1985 to 2021
$33.8M
Cell Signaling and Cell DecisionsR35GM127026 · NIGMS · WEILL MEDICAL COLL OF CORNELL UNIV · PI TOBIAS MEYER · 2018 to 2026
$8.5M
Chromatin Dynamics in the Cell CycleF32GM125246 · NIGMS · STANFORD UNIVERSITY · PI PACK, LINDSEY RENEE · 2017 to 2020
$197k
Single-cell analysis of alterations in signaling dynamics that impair cellular proliferation during agingF30AG060634 · NIA · STANFORD UNIVERSITY · PI DAIGH, LEIGHTON HARRISON · 2018 to 2019
$77k
NIA NIH HHS F30 AG060634NIGMS NIH HHS F32 GM125246NIGMS NIH HHS R35 GM127026NIGMS NIH HHS T32 GM007365
6 · The paper itself

Abstract

Since their discovery as drivers of proliferation, cyclin-dependent kinases (CDKs) have been considered therapeutic targets. Small molecule inhibitors of CDK4/6 are used and tested in clinical trials to treat multiple cancer types. Despite their clinical importance, little is known about how CDK4/6 inhibitors affect the stability of CDK4/6 complexes, which bind cyclins and inhibitory proteins such as p21. We develop an assay to monitor CDK complex stability inside the nucleus. Unexpectedly, treatment with CDK4/6 inhibitors-palbociclib, ribociclib, or abemaciclib-immediately dissociates p21 selectively from CDK4 but not CDK6 complexes. This effect mediates indirect inhibition of CDK2 activity by p21 but not p27 redistribution. Our work shows that CDK4/6 inhibitors have two roles: non-catalytic inhibition of CDK2 via p21 displacement from CDK4 complexes, and catalytic inhibition of CDK4/6 independent of p21. By broadening the non-catalytic displacement to p27 and CDK6 containing complexes, next-generation CDK4/6 inhibitors may have improved efficacy and overcome resistance mechanisms.

Indexed as

AnimalsCell CycleCell LineCell NucleusCyclin DCyclin-Dependent Kinase 2Cyclin-Dependent Kinase 4Cyclin-Dependent Kinase 6Cyclin-Dependent Kinase Inhibitor p21Cyclin-Dependent Kinase Inhibitor p27Epithelial CellsHumansMCF-7 CellsMiceMicroscopy, FluorescencePiperazinesCDK2 protein, humanCDK4 protein, humanCDK6 protein, humanCyclin DCyclin-Dependent Kinase 2Cyclin-Dependent Kinase 4Cyclin-Dependent Kinase 6Cyclin-Dependent Kinase Inhibitor p21Cyclin-Dependent Kinase Inhibitor p27palbociclibPiperazinesProtein Kinase InhibitorsPyridines

Identifiers

PMID34099663
PMCPMC8184839
OpenAlexW3168314397

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.