Evidence map›Paper›PMID 19930704›Full record

ArticleJournal of experimental & clinical cancer research : CR2009

The expression and significance of P-glycoprotein, lung resistance protein and multidrug resistance-associated protein in gastric cancer.

Wen-Qing Hu, Chun-Wei Peng, Yan Li

Open access · goldAbstract read
In one paragraph

Article in Journal of experimental & clinical cancer research : CR, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
0.3field-weighted citation impact, top 38% 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

19 citing papers in PubMed, 31 citations in OpenAlex.

  1. Article
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  5. Reversal of ABCB1-related multidrug resistance by ERK5-IN-1.Journal of experimental & clinical cancer research : CR · 2020
    Article
  6. Article
  7. Article
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  9. Article
  10. Expression of multidrug resistance proteins in retinoblastoma.International journal of ophthalmology · 2017
    Article
  11. Molecular mechanisms of chemoresistance in gastric cancer.World journal of gastrointestinal oncology · 2016
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Zuo Jin Wan, a Traditional Chinese Herbal Formula, Reverses P-gp-Mediated MDR In Vitro and In Vivo.Evidence-based complementary and alternative medicine : eCAM · 2013
    Article
  18. Article
  19. 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

3 authors at 2 institutions in 1 country.

Wen-Qing HuDepartment of Surgery, Heji Hospital Affiliated to Changzhi Medical College, Changzhi 046011, PR China. baibaihejiyy@163.com
Chun-Wei Peng
Yan Li
Zhongnan Hospital of Wuhan University · CNChangzhi Medical College · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo detect the expression of multidrug resistance molecules P-glycoprotein (P-gp), Lung resistnce protein (LRP) and Multidrug resistance-associated protein (MRP) and analyze the relationship between them and the clinico-pathological features.

methodsThe expressions of P-gp, LRP and MRP in formalin-fixed paraffin-embedded tissue sections from 59 gastric cancer patients were determined by a labbelled Streptavidin-Peroxidase (SP) immunohistochemical technique, and the results were analyzed in correlation with clinicopathological data. None of these patients received chemotherapy prior to surgery.

resultsThe positive rates of P-gp, LRP, MRP were 86.4%, 84.7% and 27.1%, respectively. The difference between the positive rate of P-gp and MRP was significant statistically, as well as the difference between the expression of MRP and LRP. No significant difference was observed between P-gp and LRP, but the positively correlation between the expression of P-gp and LRP had been found. No significant correlation between the expression of P-gp, LRP, MRP and the grade of differentiation were observed. The expression of P-gp was correlated with clinical stages positively (r = 0.742), but the difference with the expression of P-gp in different stages was not significant.

conclusionThe expressions of P-gp, LRP and MRP in patients with gastric cancer without prior chemotherapy are high, indicating that innate drug resistance may exist in gastric cancer.

Indexed as

AdultAgedATP-Binding Cassette, Sub-Family C ProteinsATP Binding Cassette Transporter, Subfamily B, Member 1Drug Resistance, MultipleDrug Resistance, NeoplasmFemaleHumansMajor Vault ProteinMaleMiddle AgedStomach NeoplasmsVault Ribonucleoprotein ParticlesATP-Binding Cassette, Sub-Family C ProteinsATP Binding Cassette Transporter, Subfamily B, Member 1Major Vault ProteinVault Ribonucleoprotein Particles

Identifiers

PMID19930704
PMCPMC2788536
OpenAlexW2110132000

What OpenQuestion holds

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LicenceCC BY
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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.