Evidence map›Paper›PMID 32340192›Full record

ArticleInternational journal of molecular sciences2020

Blockade of CDK7 Reverses Endocrine Therapy Resistance in Breast Cancer.

Yasmin M Attia, Samia A Shouman, Salama A Salama, Cristina Ivan, Abdelrahman M Elsayed, Paola Amero, Cristian Rodriguez-Aguayo, Gabriel Lopez-Berestein

Open access · goldAbstract read
In one paragraph

Article in International journal of molecular sciences, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.8field-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

22 citing papers in PubMed, 35 citations in OpenAlex.

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  12. Seize the engine: Emerging cell cycle targets in breast cancer.Clinical and translational medicine · 2024
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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

8 authors at 3 institutions in 2 countries.

Yasmin M AttiaPharmacology Unit, Cancer Biology Department, National Cancer Institute, Cairo University, Kasr Al Eini Street, Fom El Khalig, Cairo 11796, Egypt.
Samia A ShoumanPharmacology Unit, Cancer Biology Department, National Cancer Institute, Cairo University, Kasr Al Eini Street, Fom El Khalig, Cairo 11796, Egypt.ORCID 0000-0002-2883-8775
Salama A SalamaPharmacology & Toxicology Department, Al-Azhar University, Cairo 11675, Egypt.
Cristina IvanDepartment of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
Abdelrahman M ElsayedDepartment of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
Paola AmeroDepartment of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.ORCID 0000-0002-7503-0381
Cristian Rodriguez-AguayoDepartment of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.ORCID 0000-0002-7880-7723
Gabriel Lopez-BeresteinDepartment of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
The University of Texas MD Anderson Cancer Center · USAl-Azhar University · EGCairo University · EG

Funding

Tumor Evolution and Metastasis ProgramP30CA016672 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI Fabien Delerue · 1985 to 2026
$290.8M
U.T. M. D. Anderson Cancer Center SPORE in Ovarian CancerP50CA217685 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI BAST, ROBERT C, SOOD, ANIL K · 2017 to 2021
$7.9M
Ministry of Higher Education, Egypt Joint supervision 2019/2020NCI NIH HHS P30CA016672NCI NIH HHS P50 CA217685NIH HHS 5U01CA213759-02NIH HHS FP00000019
6 · The paper itself

Abstract

Cyclin-dependent kinase (CDK)-7 inhibitors are emerging as promising drugs for the treatment of different types of cancer that show chemotherapy resistance. Evaluation of the effects of CDK7 inhibitor, THZ1, alone and combined with tamoxifen is of paramount importance. Thus, in the current work, we assessed the effects of THZ1 and/or tamoxifen in two estrogen receptor-positive (ER+) breast cancer cell lines (MCF7) and its tamoxifen resistant counterpart (LCC2) in vitro and in xenograft mouse models of breast cancer. Furthermore, we evaluated the expression of CDK7 in clinical samples from breast cancer patients. Cell viability, apoptosis, and genes involved in cell cycle regulation and tamoxifen resistance were determined. Tumor volume and weight, proliferation marker (Ki67), angiogenic marker (CD31), and apoptotic markers were assayed. Bioinformatic data indicated CDK7 expression was associated with negative prognosis, enhanced pro-oncogenic pathways, and decreased response to tamoxifen. Treatment with THZ1 enhanced tamoxifen-induced cytotoxicity, while it inhibited genes involved in tumor progression in MCF-7 and LCC2 cells. In vivo, THZ1 boosted the effect of tamoxifen on tumor weight and tumor volume, reduced Ki67 and CD31 expression, and increased apoptotic cell death. Our findings identify CDK7 as a possible therapeutic target for breast cancer whether it is sensitive or resistant to tamoxifen therapy.

Indexed as

AnimalsAntineoplastic Agents, HormonalAntineoplastic Combined Chemotherapy ProtocolsApoptosisBreast NeoplasmsCell Line, TumorCell ProliferationCell SurvivalCyclin-Dependent Kinase-Activating KinaseCyclin-Dependent KinasesDisease Models, AnimalDrug Resistance, NeoplasmFemaleHumansMiceProtein Kinase InhibitorsAntineoplastic Agents, HormonalCyclin-Dependent Kinase-Activating KinaseCyclin-Dependent KinasesProtein Kinase Inhibitorsbreast cancerc-Myccyclin-dependent kinase 7estrogen receptorresistancetamoxifen

Identifiers

PMID32340192
PMCPMC7215326
OpenAlexW3018795668

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.