Evidence map›Paper›PMID 21966466›Full record

ArticlePloS one2011

HIV protease inhibitors act as competitive inhibitors of the cytoplasmic glucose binding site of GLUTs with differing affinities for GLUT1 and GLUT4.

Richard C Hresko, Paul W Hruz

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed, 1 pooled it
4.7field-weighted citation impact, top 5% 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

60 citing papers in PubMed, 1 synthesis or guideline pooled it, 87 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Review
  4. Observational
  5. Review
  6. Review
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  14. Review
  15. Autocrine FGF1 signaling promotes glucose uptake in adipocytes.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  16. Review
  17. 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

2 authors at 1 institution in 1 country.

Richard C HreskoDepartment of Pediatrics, Washington University School of Medicine, St. Louis, Missouri, United States of America.
Paul W Hruz
Washington University in St. Louis · US

Funding

Mechanisms for Altered Glucose Homeostasis During HAARTR01DK064572 · NIDDK · WASHINGTON UNIVERSITY · PI HRUZ, PAUL W · 2003 to 2010
$2.3M
DIRECT EFFECTS OF ANTIRETROVIRAL THERAPY ON CARDIAC ENERGY HOMEOSTASISR01HL092798 · NHLBI · WASHINGTON UNIVERSITY · PI HRUZ, PAUL W · 2009 to 2013
$1.9M
NHLBI NIH HHS HL092798NHLBI NIH HHS R01 HL092798NIDDK NIH HHS DK064572NIDDK NIH HHS R01 DK064572
6 · The paper itself

Abstract

The clinical use of several first generation HIV protease inhibitors (PIs) is associated with the development of insulin resistance. Indinavir has been shown to act as a potent reversible noncompetitive inhibitor of zero-trans glucose influx via direct interaction with the insulin responsive facilitative glucose transporter GLUT4. Newer drugs within this class have differing effects on insulin sensitivity in treated patients. GLUTs are known to contain two distinct glucose-binding sites that are located on opposite sides of the lipid bilayer. To determine whether interference with the cytoplasmic glucose binding site is responsible for differential effects of PIs on glucose transport, intact intracellular membrane vesicles containing GLUT1 and GLUT4, which have an inverted transporter orientation relative to the plasma membrane, were isolated from 3T3-L1 adipocytes. The binding of biotinylated ATB-BMPA, a membrane impermeable bis-mannose containing photolabel, was determined in the presence of indinavir, ritonavir, atazanavir, tipranavir, and cytochalasin b. Zero-trans 2-deoxyglucose transport was measured in both 3T3-L1 fibroblasts and primary rat adipocytes acutely exposed to these compounds. PI inhibition of glucose transport correlated strongly with the PI inhibition of ATB-BMPA/transporter binding. At therapeutically relevant concentrations, ritonavir was not selective for GLUT4 over GLUT1. Indinavir was found to act as a competitive inhibitor of the cytoplasmic glucose binding site of GLUT4 with a K(I) of 8.2 µM. These data establish biotinylated ATB-BMPA as an effective probe to quantify accessibility of the endofacial glucose-binding site in GLUTs and reveal that the ability of PIs to block this site differs among drugs within this class. This provides mechanistic insight into the basis for the clinical variation in drug-related metabolic toxicity.

Indexed as

3T3-L1 CellsAdipocytesAnimalsBinding SitesCells, CulturedCytoplasmDeoxyglucoseGlucoseGlucose Transporter Type 1Glucose Transporter Type 4HIV Protease InhibitorsMaleMiceMicrosomesProtein BindingRatsDeoxyglucoseGlucoseGlucose Transporter Type 1Glucose Transporter Type 4HIV Protease Inhibitors

Identifiers

PMID21966466
PMCPMC3179492
OpenAlexW2072093759

What OpenQuestion holds

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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.