Evidence map›Paper›PMID 34168225›Full record

ArticleScientific reports2021

Low-density lipoprotein receptor-related protein 1 (LRP1) is a novel receptor for apolipoprotein A4 (APOA4) in adipose tissue.

Jie Qu, Sarah Fourman, Maureen Fitzgerald, Min Liu, Supna Nair, Juan Oses-Prieto, Alma Burlingame, John H Morris, W Sean Davidson, Patrick Tso and 1 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
4.1field-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

29 citing papers in PubMed, 44 citations in OpenAlex.

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  16. Identification of Potential Functional Modules and Diagnostic Genes for Crohn's Disease Based on Weighted Gene Co-expression Network Analysis and LASSO Algorithm.The Turkish journal of gastroenterology : the official journal of Turkish Society of Gastroenterology · 2025
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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

11 authors at 2 institutions in 1 country.

Jie QuDepartment of Pathology and Laboratory Medicine, University of Cincinnati College of Medicine, 2180 E Galbraith Road, Cincinnati, 45237-0507, USA.
Sarah FourmanDepartment of Pathology and Laboratory Medicine, University of Cincinnati College of Medicine, 2180 E Galbraith Road, Cincinnati, 45237-0507, USA.
Maureen FitzgeraldDepartment of Pathology and Laboratory Medicine, University of Cincinnati College of Medicine, 2180 E Galbraith Road, Cincinnati, 45237-0507, USA.
Min LiuDepartment of Pathology and Laboratory Medicine, University of Cincinnati College of Medicine, 2180 E Galbraith Road, Cincinnati, 45237-0507, USA.
Supna NairDepartments of Pharmaceutical Chemistry, University of California San Francisco, 600 16th Street, San Francisco, CA, 94158, USA.
Juan Oses-PrietoDepartments of Pharmaceutical Chemistry, University of California San Francisco, 600 16th Street, San Francisco, CA, 94158, USA.
Alma BurlingameDepartments of Pharmaceutical Chemistry, University of California San Francisco, 600 16th Street, San Francisco, CA, 94158, USA.
John H MorrisDepartments of Pharmaceutical Chemistry, University of California San Francisco, 600 16th Street, San Francisco, CA, 94158, USA.
W Sean DavidsonDepartment of Pathology and Laboratory Medicine, University of Cincinnati College of Medicine, 2180 E Galbraith Road, Cincinnati, 45237-0507, USA.
Patrick TsoDepartment of Pathology and Laboratory Medicine, University of Cincinnati College of Medicine, 2180 E Galbraith Road, Cincinnati, 45237-0507, USA.
Aditi BhargavaDepartment of Obstetrics and Gynecology, Center for Reproductive Sciences, University of California San Francisco, 513 Parnassus Avenue, Rm HSE1636, San Francisco, CA, 94143-0556, USA. aditi.bhargava@ucsf.edu.
University of Cincinnati Medical Center · USUniversity of California, San Francisco · US

Funding

Stem Cell/Organoid and Genome Editing CoreP30DK078392 · NIDDK · CINCINNATI CHILDRENS HOSP MED CTR · PI LEE ARMISTEAD DENSON · 2007 to 2026
$24.4M
Research BaseP30DK063720 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI GERMAN, MICHAEL S · 2003 to 2019
$21.8M
LIPID, LIPOPROTEIN, AND GLUCOSE METABOLISM COREU24DK059630 · NIDDK · UNIVERSITY OF CINCINNATI · PI TSO, PATRICK · 2001 to 2015
$12.9M
Role of the GI lymphatic system in hormonal signaling and nutrient metabolismR01DK119135 · NIDDK · UNIVERSITY OF CINCINNATI · PI LIU, MIN, TSO, PATRICK · 2018 to 2022
$3.0M
NIDDK NIH HHS P30 DK063720NIDDK NIH HHS P30 DK078392NIDDK NIH HHS R01 DK119135NIDDK NIH HHS U24 DK059630
6 · The paper itself

Abstract

Apolipoprotein A4 (APOA4) is one of the most abundant and versatile apolipoproteins facilitating lipid transport and metabolism. APOA4 is synthesized in the small intestine, packaged onto chylomicrons, secreted into intestinal lymph and transported via circulation to several tissues, including adipose. Since its discovery nearly 4 decades ago, to date, only platelet integrin αIIbβ3 has been identified as APOA4 receptor in the plasma. Using co-immunoprecipitation coupled with mass spectrometry, we probed the APOA4 interactome in mouse gonadal fat tissue, where ApoA4 gene is not transcribed but APOA4 protein is abundant. We demonstrate that lipoprotein receptor-related protein 1 (LRP1) is the cognate receptor for APOA4 in adipose tissue. LRP1 colocalized with APOA4 in adipocytes; it interacted with APOA4 under fasting condition and their interaction was enhanced during lipid feeding concomitant with increased APOA4 levels in plasma. In 3T3-L1 mature adipocytes, APOA4 promoted glucose uptake both in absence and presence of insulin in a dose-dependent manner. Knockdown of LRP1 abrogated APOA4-induced glucose uptake as well as activation of phosphatidylinositol 3 kinase (PI3K)-mediated protein kinase B (AKT). Taken together, we identified LRP1 as a novel receptor for APOA4 in promoting glucose uptake. Considering both APOA4 and LRP1 are multifunctional players in lipid and glucose metabolism, our finding opens up a door to better understand the molecular mechanisms along APOA4-LRP1 axis, whose dysregulation leads to obesity, cardiovascular disease, and diabetes.

Indexed as

AdipocytesAdipose TissueAnimalsApolipoproteins ABlotting, WesternFemaleFluorescent Antibody TechniqueGlucoseHumansLow Density Lipoprotein Receptor-Related Protein-1MaleMass SpectrometryMiceMice, Inbred C57BLReal-Time Polymerase Chain Reactionapolipoprotein A-IVApolipoproteins AGlucoseLow Density Lipoprotein Receptor-Related Protein-1Lrp1 protein, mouse

Identifiers

PMID34168225
PMCPMC8225859
OpenAlexW3173330235

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.