Evidence map›Paper›PMID 11518764›Full record

ArticleJournal of lipid research2001

17beta-Estradiol promotes the up-regulation of SR-BII in HepG2 cells and in rat livers.

G A Graf, K L Roswell, E J Smart

RetractedAbstract readRetracted Publication
PubMed
In one paragraph

Article in Journal of lipid research, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

14 citing papers in PubMed, 44 citations in OpenAlex.

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  10. CLA-1 and its splicing variant CLA-2 mediate bacterial adhesion and cytosolic bacterial invasion in mammalian cells.Proceedings of the National Academy of Sciences of the United States of America · 2006
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

G A GrafUniversity of Kentucky Medical School, Department of Physiology, Lexington, KY 40536, USA.
K L Roswell
E J Smart
University of Kentucky · US

Funding

PROTECTIVE ACTIONS OF ESTRADIOL/SERMS ON BRAIN/HIVP20RR015592 · NCRR · UNIVERSITY OF KENTUCKY · PI KELLY, THOMAS J. · 2000 to 2009
$18.2M
SR-BI AND MACROPHAGE CHOLESTEROL METABOLISMR01HL064056 · NHLBI · UNIVERSITY OF KENTUCKY · PI SMART, ERIC J · 2000 to 2003
$1.2M
CD36 AND LIPOPROTEINS AND HYPERTENSIONR01HL062844 · NHLBI · UNIVERSITY OF KENTUCKY · PI SMART, ERIC J · 1999 to 2002
$655k
CAVEOLAE MEDIATED REGULATION OF ATHEROGENESISR01HL058475 · NHLBI · UNIVERSITY OF KENTUCKY · PI SMART, ERIC J · 1999 to 2000
$105k
CAVEOLAE MEDIATED REGULATION OF ATHEROGENESISR29HL058475 · NHLBI · UNIVERSITY OF KENTUCKY · PI SMART, ERIC J · 1997 to 1998
–
NCRR NIH HHS P20RR15592NHLBI NIH HHS HL58475NHLBI NIH HHS HL62844NHLBI NIH HHS HL64056
6 · The paper itself

Abstract

The scavenger receptor class B type I (SR-BI) binds to HDL and mediates the selective uptake of cholesterol esters from HDL to cells. SR-BII is an alternatively spliced product of the SR-BI gene that only differs in the C-terminal cytoplasmic domain. Previous studies with male mice demonstrated that SR-BII comprises about 12% of the total SR-BI/SR-BII present in liver. In the current studies we used a liver cell line, HepG2, and a rat estrogen replacement model to examine the effects of estrogen on the expression of SR-BII. HepG2 cells express SR-BI but not SR-BII. SR-BI/SR-BII - blocking antibodies demonstrated that HepG2 cells selectively internalize cholesterol esters in a SR-BI - dependent manner. Incubation of HepG2 cells with 10 pM of 17beta-estradiol for 12 h eliminated the expression of SR-BI and promoted the up-regulation of SR-BII. Radiolabeled HDL-binding studies demonstrated that 17beta-estradiol increased the number of HDL binding sites by 3-fold in HepG2 cells. However, 17beta-estradiol - treated cell internalized approximately 25% less cholesterol ester than vehicle-only-treated cells. The livers obtained from male rats and ovariectomized female rats contained SR-BI and a small amount of SR-BII. In contrast, the livers obtained from intact female rats and ovariectomized female rats receiving estrogen replacement contained SR-BII and a small amount of SR-BI. The amount of SR-BI and SR-BII in adrenal tissue was not affected by any of the experimental treatments. We conclude that estrogen up-regulates SR-BII in HepG2 cells and rat liver.

Indexed as

Membrane ProteinsReceptors, ImmunologicReceptors, LipoproteinAlternative SplicingAnimalsCarcinoma, HepatocellularCD36 AntigensCHO CellsCholesterol EstersCricetinaeEstradiolFemaleGene Expression RegulationLipoproteins, HDLLiverLiver NeoplasmsCD36 AntigensCholesterol EstersEstradiolLipoproteins, HDLMembrane ProteinsReceptors, ImmunologicReceptors, LipoproteinReceptors, ScavengerScarb1 protein, mouseScarb1 protein, ratScavenger Receptors, Class B

Identifiers

PMID11518764
OpenAlexW2340108705

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.