Evidence map›Paper›PMID 19898868›Full record

ArticleJournal of cancer research and clinical oncology2010

Tetrandrine prevents acquired drug resistance of K562 cells through inhibition of mdr1 gene transcription.

Huiling Shen, Wenlin Xu, Qiaoyun Chen, Zhaoyang Wu, Huarong Tang, Fachun Wang

Open access · greenAbstract read
In one paragraph

Article in Journal of cancer research and clinical oncology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.6field-weighted citation impact, top 16% 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

13 citing papers in PubMed, 40 citations in OpenAlex.

  1. Review
  2. Tetrandrine for Targeting Therapy Resistance in Cancer.Current topics in medicinal chemistry · 2024
    Review
  3. Natural medicinal compounds target signal transduction pathways to overcome ABC drug efflux transporter-mediated multidrug resistance in cancer.Drug resistance updates : reviews and commentaries in antimicrobial and anticancer chemotherapy · 2023
    Review
  4. Article
  5. Review
  6. Review
  7. Article
  8. Review
  9. Article
  10. Review
  11. Article
  12. Article
  13. Curcumin prevents induced drug resistance: a novel function?Chinese journal of cancer research = Chung-kuo yen cheng yen chiu · 2011
    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 2 institutions in 1 country.

Huiling ShenThe Affiliated People's Hospital, Jiangsu University, Zhenjiang, China.
Wenlin Xu
Qiaoyun Chen
Zhaoyang Wu
Huarong Tang
Fachun Wang
Jiangsu University · CNAffiliated Hospital of Jiangsu University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThere have been no reports describing successful drug resistance reversal in tumors in the clinic until now. Conversion of drug resistance reversal studies to drug resistance prevention studies may assist in the development of more efficient anti-tumor strategies. The present study demonstrates the prevention of doxorubicin-induced drug resistance by tetrandrine on leukemia cells. MATERIALS AND

methodsK562 cells were either solely treated with doxorubicin (0.6 mg/ml) or pretreated with tetrandrine of different concentrations (0.5, 1.0 and 2.0 microg/ml) for 24 h followed by combined-treatment with doxorubicin (0.6 microg/ml).

resultsThe results showed that doxorubicin treatment only resulted in elevated levels of mdr1 mRNA/P-gp expression. Doxorubicin also induced up-regulation of P-gp functional activities, as intracellular retention of rhodamine was decreased; however, 2.0 microg/ml tetrandrine significantly inhibited the overexpression of doxorubicin-induced mdr1 mRNA/P-gp. Consistently, the functional activity of P-gp was also inhibited, which led to increased intracellular drug retention and the recovery of cell sensitivity to chemotherapeutic drugs in combined treatment groups. Both mRNA and protein levels of NF-kappaB were up-regulated in the cells treated with doxorubicin only. Results from an electrophoretic mobility shift assay and a chromatin immunoprecipitation assay demonstrated the enhanced binding to the promoter region of mdr1 gene compared to the control group. However, tetrandrine could markedly inhibit the doxorubicin-induced expression of NF-kappaB mRNA and protein. In addition, it also attenuated the NF-kappaB DNA-binding activity.

conclusionIn summary, tetrandrine can prevent doxorubicin-induced mdr1 mRNA/P-gp expression and P-gp functions in a dose-dependent manner through a mechanism that may involve inhibition of doxorubicin-induced NF-kappaB mRNA expression and protein activity.

Indexed as

Antineoplastic Agents, PhytogenicATP Binding Cassette Transporter, Subfamily B, Member 1BenzylisoquinolinesDoxorubicinDrug Resistance, NeoplasmDrugs, Chinese HerbalDrug Screening Assays, AntitumorGene Expression Regulation, NeoplasticGenes, MDRHumansK562 CellsNF-kappa BAntineoplastic Agents, PhytogenicATP Binding Cassette Transporter, Subfamily B, Member 1BenzylisoquinolinesDoxorubicinDrugs, Chinese HerbalNF-kappa Btetrandrine

Identifiers

PMID19898868
PMCPMC11828089
OpenAlexW2066621807

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.