Evidence map›Paper›PMID 20501632›Full record

ArticleNeuro-oncology2010

Influence of blood-brain barrier efflux pumps on the distribution of vincristine in brain and brain tumors.

Fan Wang, Feng Zhou, Gary D Kruh, James M Gallo

Open access · bronzeAbstract read
In one paragraph

Article in Neuro-oncology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
2.1field-weighted citation impact, top 13% 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

30 citing papers in PubMed, 67 citations in OpenAlex.

  1. Trial
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  5. Review
  6. Article
  7. Article
  8. Vincristine Disposition and Neurotoxicity Are Unchanged in Humanized CYP3A5 Mice.Drug metabolism and disposition: the biological fate of chemicals · 2024
    Article
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  10. Review
  11. Article
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  13. Review
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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

4 authors at 2 institutions in 1 country.

Fan WangJames M. Gallo, Pharm.D., PhD, Department of Pharmacology and System Therapeutics Mount Sinai School of Medicine One Gustave L. Levy Pl Box 1603 New York, NY 10029, USA.
Feng Zhou
Gary D Kruh
James M Gallo
Icahn School of Medicine at Mount Sinai · USUniversity of Illinois Chicago · US

Funding

Function of the MRP FamilyU01CA073728 · NCI · UNIVERSITY OF ILLINOIS AT CHICAGO · PI BECK, WILLIAM · 1999 to 2010
$4.1M
Function of the MRP FamilyR01CA073728 · NCI · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · PI GALLO, JAMES M. · 2011 to 2013
$1.3M
NCI NIH HHS CA73728
6 · The paper itself

Abstract

Vincristine (VCR) is efficacious in some but not all brain cancers and an established substrate of Pgp and Mrp1. However, the extent to which such transporters affect the VCR penetration through the blood-brain barrier (BBB) is poorly understood. To evaluate the role of Pgp and Mrp1 in VCR CNS distribution, VCR concentrations were analyzed under steady-state conditions in normal brain, brain tumor, and bone marrow in wild-type (WT), Mrp1 ko (mrp1-/-), Pgp ko (mdr1a-/-:mdr1b-/-), and TKO (mdr1a-/-:mdr1b-/-:mrp1-/-) mice. VCR normal brain partition coefficients (i.e. tissue/plasma VCR concentrations) in TKO mice were greater than those in WT mice at both targeted 10 and 50 ng/mL plasma VCR concentrations, and ranged from 1.3- to 3.6-fold. VCR brain tumor partition coefficients in Mrp1 mice were greater than WT mice at both doses, being 1.5- and 2.4-fold higher at low and high doses, respectively. TKO mice also showed elevated VCR brain tumor penetration with a brain tumor partition coefficient of 1.9-fold greater than that in WT mice at the high-dose level. The bone marrow partition coefficient in Mrp1 ko mice was 1.65-fold greater than that in WT mice. Within strain comparisons revealed that VCR brain tumor concentrations were significantly greater than normal brain in all strains, ranging from 9- to 40-fold. These findings indicate that disruption of the BBB caused the largest enhancement in VCR tumor concentrations, yet the absence of Mrp1 on the brain tumor vasculature could enhance the penetration compared with that in normal brain.

Indexed as

AnimalsAntineoplastic AgentsATP-Binding Cassette, Sub-Family C ProteinsATP Binding Cassette Transporter, Subfamily B, Member 1Blood-Brain BarrierBrain NeoplasmsChromatography, LiquidMass SpectrometryMiceMice, KnockoutVincristineAntineoplastic AgentsATP-Binding Cassette, Sub-Family C ProteinsATP Binding Cassette Transporter, Subfamily B, Member 1multidrug resistance-associated protein 1Vincristine

Identifiers

PMID20501632
PMCPMC3018922
OpenAlexW2102370623

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.