Evidence map›Paper›PMID 22751103›Full record

ArticleThe Journal of clinical investigation2012

Hepatic sortilin regulates both apolipoprotein B secretion and LDL catabolism.

Alanna Strong, Qiurong Ding, Andrew C Edmondson, John S Millar, Katherine V Sachs, Xiaoyu Li, Arthi Kumaravel, Margaret Ye Wang, Ding Ai, Liang Guo and 10 more

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of clinical investigation, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 112 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
112citing papers in PubMed, 3 pooled it
10.1field-weighted citation impact, top 1% 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

112 citing papers in PubMed, 3 syntheses or guidelines pooled it, 217 citations in OpenAlex.

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  16. Molecular Regulation and Therapeutic Targeting of VLDL Production in Cardiometabolic Disease.Cellular and molecular gastroenterology and hepatology · 2025
    Review
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52 more citing papers are in PubMed but not listed here.

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

20 authors at 8 institutions in 2 countries.

Alanna StrongInstitute for Translational Medicine and Therapeutics, Cardiovascular Institute, and Institute for Diabetes, Obesity and Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA.
Qiurong Ding
Andrew C Edmondson
John S Millar
Katherine V Sachs
Xiaoyu Li
Arthi Kumaravel
Margaret Ye Wang
Ding Ai
Liang Guo
Eric T Alexander
David Nguyen
Sissel Lund-Katz
Michael C Phillips
Carlos R Morales
Alan R Tall
Sekar Kathiresan
Edward A Fisher
Kiran Musunuru
Daniel J Rader
University of Pennsylvania · USChildren's Hospital of Philadelphia · USColumbia University Irving Medical Center · USHarvard University · USNew York University · USMassachusetts General Hospital · USMcGill University · CATranslational Therapeutics (United States) · US

Funding

Molecular mechanisms and pathways of novel genomic loci regulating plasma lipidsRC2HL101864 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI RADER, DANIEL JAMES · 2009 to 2010
$4.7M
Interrogation of novel pathways regulating VLDL production and plasma lipidsR01HL109489 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI RADER, DANIEL JAMES · 2011 to 2014
$1.6M
Genetic and functional analyses of a novel locus associated with LDL-C and MIK99HL098364 · NHLBI · MASSACHUSETTS GENERAL HOSPITAL · PI MUSUNURU, KIRAN · 2010 to 2011
$275k
NHLBI NIH HHS K99 HL098364NHLBI NIH HHS R01 HL109489NHLBI NIH HHS R01HL109489NHLBI NIH HHS RC2 HL101864NHLBI NIH HHS RC2HL101864
6 · The paper itself

Abstract

Genome-wide association studies (GWAS) have identified a genetic variant at a locus on chromosome 1p13 that is associated with reduced risk of myocardial infarction, reduced plasma levels of LDL cholesterol (LDL-C), and markedly increased expression of the gene sortilin-1 (SORT1) in liver. Sortilin is a lysosomal sorting protein that binds ligands both in the Golgi apparatus and at the plasma membrane and traffics them to the lysosome. We previously reported that increased hepatic sortilin expression in mice reduced plasma LDL-C levels. Here we show that increased hepatic sortilin not only reduced hepatic apolipoprotein B (APOB) secretion, but also increased LDL catabolism, and that both effects were dependent on intact lysosomal targeting. Loss-of-function studies demonstrated that sortilin serves as a bona fide receptor for LDL in vivo in mice. Our data are consistent with a model in which increased hepatic sortilin binds intracellular APOB-containing particles in the Golgi apparatus as well as extracellular LDL at the plasma membrane and traffics them to the lysosome for degradation. We thus provide functional evidence that genetically increased hepatic sortilin expression both reduces hepatic APOB secretion and increases LDL catabolism, providing dual mechanisms for the very strong association between increased hepatic sortilin expression and reduced plasma LDL-C levels in humans.

Indexed as

Adaptor Proteins, Vesicular TransportAnimalsAPOBEC-1 DeaminaseApolipoproteins BBase SequenceCell LineCytidine DeaminaseDNA PrimersHumansHydrogen-Ion ConcentrationKineticsLipoproteins, LDLLipoproteins, VLDLLiverLysosomesMiceAdaptor Proteins, Vesicular TransportAPOBEC-1 DeaminaseAPOBEC1 protein, humanApobec1 protein, mouseApolipoproteins BCytidine DeaminaseDNA PrimersLipoproteins, LDLLipoproteins, VLDLReceptors, LDLRecombinant ProteinsSortilin

Identifiers

PMID22751103
PMCPMC3408750
OpenAlexW2071039886

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.