Evidence map›Paper›PMID 28243976›Full record

ArticleCellular oncology (Dordrecht, Netherlands)2017

Inhibition of CDK4 sensitizes multidrug resistant ovarian cancer cells to paclitaxel by increasing apoptosiss.

Yan Gao, Jacson Shen, Edwin Choy, Henry Mankin, Francis Hornicek, Zhenfeng Duan

Abstract read
In one paragraph

Article in Cellular oncology (Dordrecht, Netherlands), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
3.9field-weighted citation impact, top 6% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.

  1. Pooled it
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  5. Article
  6. Review
  7. Article
  8. Review
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  10. Review
  11. Short-term CDK4/6 Inhibition Radiosensitizes Estrogen Receptor-Positive Breast Cancers.Clinical cancer research : an official journal of the American Association for Cancer Research · 2020
    Article
  12. Review
  13. Article
  14. Article
  15. World journal of gastroenterology · 2019
    Article
  16. Cyclin-dependent kinase 9 (CDK9) is a novel prognostic marker and therapeutic target in ovarian cancer.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2019
    Article
  17. Journal of Cancer · 2019
    Article
  18. Article
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

6 authors at 3 institutions in 2 countries.

Yan GaoDepartment of Clinical Laboratory Diagnostics, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China.
Jacson ShenSarcoma Biology Laboratory, Center for Sarcoma and Connective Tissue Oncology, Massachusetts General Hospital and Harvard Medical School, 100 Blossom St, Jackson 1115, Boston, MA, 02114, USA.
Edwin ChoySarcoma Biology Laboratory, Center for Sarcoma and Connective Tissue Oncology, Massachusetts General Hospital and Harvard Medical School, 100 Blossom St, Jackson 1115, Boston, MA, 02114, USA.
Henry MankinSarcoma Biology Laboratory, Center for Sarcoma and Connective Tissue Oncology, Massachusetts General Hospital and Harvard Medical School, 100 Blossom St, Jackson 1115, Boston, MA, 02114, USA.
Francis HornicekSarcoma Biology Laboratory, Center for Sarcoma and Connective Tissue Oncology, Massachusetts General Hospital and Harvard Medical School, 100 Blossom St, Jackson 1115, Boston, MA, 02114, USA.
Zhenfeng DuanSarcoma Biology Laboratory, Center for Sarcoma and Connective Tissue Oncology, Massachusetts General Hospital and Harvard Medical School, 100 Blossom St, Jackson 1115, Boston, MA, 02114, USA. zduan@mgh.harvard.edu.
Harvard University · USSarcoma Oncology Center · USBeijing Friendship Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeOverexpression of cyclin-dependent kinase (CDK) 4 has been observed in a variety of cancers and has been found to contribute to tumor cell growth and proliferation. However, the effect of inhibition of CDK4 in ovarian cancer is unknown. We investigated the therapeutic effect of the CDK4 inhibitor palbociclib in combination with paclitaxel in ovarian cancer cells.

methodsCell viabilities were determined by MTT assay after exposure to different dosages of palbociclib and/or paclitaxel. Western blot, immunofluorescence, and Calcein AM assays were conducted to determine the mechanisms underlying the cytotoxic effects of palbociclib in combination with paclitaxel. CDK4 siRNA was used to validate the outcome of targeting CDK4 by palbociclib in ovarian cancer cells.

resultsWe found that combinations of palbociclib and paclitaxel significantly enhanced drug sensitivity in both Rb-positive (SKOV3TR) and Rb-negative (OVCAR8TR) ovarian cancer-derived cells. When combined with paclitaxel, palbociclib induced apoptosis in both SKOV3TR and OVCAR8TR cells. We also found that palbociclib inhibited the activity of P-glycoprotein (Pgp), and that siRNA-mediated CDK4 knockdown sensitized multidrug resistant (MDR) SKOV3TR and OVCAR8TR cells to paclitaxel.

conclusionsInhibition of CDK4 by palbociclib can enhance paclitaxel sensitivity in both Rb-positive and Rb-negative MDR ovarian cancer cells by increasing apoptosis. CDK4 may serve as a promising target in the treatment of ovarian cancer.

Indexed as

Antineoplastic Combined Chemotherapy ProtocolsApoptosisCell Line, TumorCell ProliferationCyclin-Dependent Kinase 4Drug Resistance, MultipleDrug Resistance, NeoplasmFemaleHumansOvarian NeoplasmsPaclitaxelPiperazinesPyridinesCDK4 protein, humanCyclin-Dependent Kinase 4PaclitaxelpalbociclibPiperazinesPyridinesApoptosisCDK4MDROvarian cancerPaclitaxelPalbociclibRb

Identifiers

PMID28243976
PMCPMC13001548
OpenAlexW2592044043

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.