Evidence map›Paper›PMID 31774876›Full record

ArticlePloS one2019

Involvement of human and canine MRP1 and MRP4 in benzylpenicillin transport.

Xiaofen Zhao, Yangfang Li, Kun Du, Yuqin Wu, Ling Liu, Shan Cui, Yan Zhang, Jin Gao, Richard F Keep, Jianming Xiang

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.8field-weighted citation impact, top 24% 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

6 citing papers in PubMed, 14 citations in OpenAlex.

  1. A macrocyclic peptide inhibitor traps MRP1 in a catalytically incompetent conformation.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  2. Kidney Drug Transporters in Pharmacotherapy.International journal of molecular sciences · 2023
    Review
  3. Review
  4. Review
  5. Article
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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

10 authors at 2 institutions in 2 countries.

Xiaofen ZhaoDepartment of Neonate, Kunming Children's Hospital, Kunming, China.
Yangfang LiDepartment of Neonate, Kunming Children's Hospital, Kunming, China.
Kun DuDepartment of Neonate, Kunming Children's Hospital, Kunming, China.
Yuqin WuDepartment of Neonate, Kunming Children's Hospital, Kunming, China.
Ling LiuDepartment of Neonate, Kunming Children's Hospital, Kunming, China.
Shan CuiDepartment of Neonate, Kunming Children's Hospital, Kunming, China.
Yan ZhangDepartment of Neonate, Kunming Children's Hospital, Kunming, China.
Jin GaoDepartment of Neonate, Kunming Children's Hospital, Kunming, China.
Richard F KeepDepartment of Neurosurgery, University of Michigan Medical School, Ann Arbor, Michigan, United States of America.
Jianming XiangDepartment of Neurosurgery, University of Michigan Medical School, Ann Arbor, Michigan, United States of America.ORCID 0000-0002-8052-6058
Kunming Children's Hospital · CNUniversity of Michigan · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The blood-brain barrier (BBB) is a dynamic and complex interface between blood and the central nervous system (CNS). It protects the brain by preventing toxic substances from entering the brain but also limits the entry of therapeutic agents. ATP-binding cassette (ABC) efflux transporters are critical for the functional barrier and present a formidable impediment to brain delivery of therapeutic agents including antibiotics. The aim of this study was to investigate the possible involvement of multidrug resistance-associated protein 1 and 4 (MRP1 and MRP4), two ABC transporters, in benzylpenicillin efflux transport using wild-type (WT) MDCKII cells and cells overexpressing those human transporters, as well as non-selective and selective inhibitors. We found that inhibiting MRP1 or MRP4 significantly increased [3H]benzylpenicillin uptake in MDCKII-WT, -MRP1 or -MRP4 cells. Similar results were also found in HepG2 cells, which highly express MRP1 and MRP4, and hCMEC/D3 cells which express MRP1. The results indicate that human and canine MRP1 and MRP4 are involved in benzylpenicillin efflux transport. They could be potential therapeutic targets for improving the efficacy of benzylpenicillin for treating CNS infections since both MRP1 and MRP4 express at human blood-brain barrier.

Indexed as

AnimalsAnti-Bacterial AgentsATP-Binding Cassette, Sub-Family C ProteinsBenzothiazolesBiological TransportDogsHep G2 CellsHumansMadin Darby Canine Kidney CellsPenicillin GPyrazolesPyrimidinesTriazolesABCC4 protein, humanAnti-Bacterial AgentsATP-Binding Cassette, Sub-Family C ProteinsBenzothiazolesceefourin 1multidrug resistance-associated protein 1Penicillin GPyrazolesPyrimidinesreversanTriazoles

Identifiers

PMID31774876
PMCPMC6881026
OpenAlexW2991168760

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.