Evidence map›Paper›PMID 25236161›Full record

ArticleBMC cancer2014

A-770041 reverses paclitaxel and doxorubicin resistance in osteosarcoma cells.

Zhenfeng Duan, Jianming Zhang, Shunan Ye, Jacson Shen, Edwin Choy, Gregory Cote, David Harmon, Henry Mankin, Yingqi Hua, Yu Zhang and 2 more

Open access · goldAbstract read
In one paragraph

Article in BMC cancer, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 21% 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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 33 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. CP-25 Attenuates the Activation of CD4Frontiers in pharmacology · 2018
    Article
  18. Article
  19. Review
  20. 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

12 authors at 4 institutions in 2 countries.

Zhenfeng DuanCenter for Sarcoma and Connective Tissue Oncology, Massachusetts General Hospital, 100 Blossom St,, Jackson 1115, Boston 02114, MA, USA. zduan@mgh.harvard.edu.
Jianming Zhang
Shunan Ye
Jacson Shen
Edwin Choy
Gregory Cote
David Harmon
Henry Mankin
Yingqi Hua
Yu Zhang
Nathanael S Gray
Francis J Hornicek
Massachusetts General Hospital · US421 Hospital of PLA · CNHarvard University · USShanghai First People's Hospital · CN

Funding

Pharmaco Response Signatures and Disease MechanismU54HG006097 · NHGRI · HARVARD MEDICAL SCHOOL · PI MITCHISON, TIMOTHY J, SORGER, PETER KARL · 2010 to 2013
$9.7M
NHGRI NIH HHS U54 HG006097
6 · The paper itself

Abstract

backgroundReversing multidrug resistance (MDR) has been an important goal for clinical and investigational oncologists. In the last few decades, significant effort has been made to search for inhibitors to reverse MDR by targeting ATP-binding cassette (ABC) transporters (Pgp, MRP) directly, but these efforts have achieved little clinical success. Protein kinases play important roles in many aspects of tumor cell growth and survival. Combinations of kinase inhibitors and chemotherapeutics have been observed to overcome cancer drug resistance in certain circumstances.

methodsWe screened a kinase specific inhibitor compound library in human osteosarcoma MDR cell lines to identify inhibitors that were capable of reversing chemoresistance to doxorubicin and paclitaxel.

resultsWe identified 18 small molecules that significantly increase chemotherapy drug-induced cell death in human osteosarcoma MDR cell lines U-2OSMR and KHOSR2. We identified A-770041 as one of the most effective MDR reversing agents when combined with doxorubicin or paclitaxel. A-770041 is a potent Src family kinase (Lck and Src) inhibitor. Western blot analysis revealed A-770041 inhibits both Src and Lck activation and expression. Inhibition of Src expression in U-2OSMR and KHOSR2 cell lines using lentiviral shRNA also resulted in increased doxorubicin and paclitaxel drug sensitivity. A-770041 increases the intracellular drug accumulation as demonstrated by calcein AM assay.

conclusionsThese results indicate that small molecule inhibitor A-770041 may function to reverse ABCB1/Pgp-mediated chemotherapy drug resistance. Combination of Src family kinase inhibitor with regular chemotherapy drug could be clinically effective in MDR osteosarcoma.

Indexed as

Antineoplastic Combined Chemotherapy ProtocolsBone NeoplasmsCell Line, TumorDoxorubicinDrug Resistance, MultipleDrug Resistance, NeoplasmDrug SynergismGene Expression Regulation, NeoplasticHumansOsteosarcomaPaclitaxelPeptide LibraryProtein Kinase InhibitorsPyrazolesPyrimidinessrc-Family Kinases1-methyl-1H-indole-2-carboxylic acid (4-(1-(4-(4-acetylpiperazin-1-yl)cyclohexyl)-4-amino-1H-pyrazolo(3,4-d)pyrimidin-3-yl)-2-methoxyphenyl)amideDoxorubicinPaclitaxelPeptide LibraryProtein Kinase InhibitorsPyrazolesPyrimidinessrc-Family Kinases

Identifiers

PMID25236161
PMCPMC4177239
OpenAlexW2062693894

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.