Evidence map›Paper›PMID 29116364›Full record

ArticleCellular and molecular life sciences : CMLS2018

Low density lipoprotein receptor-related protein 1 couples β1 integrin activation to degradation.

Lukasz Wujak, Ralph T Böttcher, Oleg Pak, Helena Frey, Elie El Agha, Ying Chen, Sigrid Schmitt, Saverio Bellusci, Liliana Schaefer, Norbert Weissmann and 2 more

Open access · greenAbstract read
In one paragraph

Article in Cellular and molecular life sciences : CMLS, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.9field-weighted citation impact, top 15% 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, 29 citations in OpenAlex.

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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

12 authors at 3 institutions in 1 country.

Lukasz WujakDepartment of Biochemistry, Justus Liebig University, 35392, Giessen, Germany.
Ralph T BöttcherMax Planck Institute of Biochemistry, 82152, Martinsried, Germany.
Oleg PakExcellence Cluster Cardio-Pulmonary System, Justus Liebig University, 35392, Giessen, Germany.
Helena FreyInstitute of Pharmacology and Toxicology, Goethe University School of Medicine, University Hospital, 60590, Frankfurt am Main, Germany.
Elie El AghaExcellence Cluster Cardio-Pulmonary System, Justus Liebig University, 35392, Giessen, Germany.
Ying ChenDepartment of Biochemistry, Justus Liebig University, 35392, Giessen, Germany.
Sigrid SchmittDepartment of Biochemistry, Justus Liebig University, 35392, Giessen, Germany.
Saverio BellusciExcellence Cluster Cardio-Pulmonary System, Justus Liebig University, 35392, Giessen, Germany.
Liliana SchaeferInstitute of Pharmacology and Toxicology, Goethe University School of Medicine, University Hospital, 60590, Frankfurt am Main, Germany.
Norbert WeissmannExcellence Cluster Cardio-Pulmonary System, Justus Liebig University, 35392, Giessen, Germany.
Reinhard FässlerMax Planck Institute of Biochemistry, 82152, Martinsried, Germany.
Malgorzata WygreckaDepartment of Biochemistry, Justus Liebig University, 35392, Giessen, Germany. malgorzata.wygrecka@innere.med.uni-giessen.de.
Justus-Liebig-Universität Gießen · DEGoethe University Frankfurt · DEMax Planck Institute of Biochemistry · DE

Funding

Deutsche Forschungsgemeinschaft project A5Deutsche Forschungsgemeinschaft SCHA1082/6Deutsche Forschungsgemeinschaft SFB 815Deutsche Forschungsgemeinschaft WY119/1-3
6 · The paper itself

Abstract

Low density lipoprotein receptor-related protein (LRP) 1 modulates cell adhesion and motility under normal and pathological conditions. Previous studies documented that LRP1 binds several integrin receptors and mediates their trafficking to the cell surface and endocytosis. However, the mechanism by which LRP1 may regulate integrin activation remains unknown. Here we report that LRP1 promotes the activation and subsequent degradation of β1 integrin and thus supports cell adhesion, spreading, migration and integrin signaling on fibronectin. LRP1 interacts with surface β1 integrin, binds the integrin activator kindlin2 and stimulates β1 integrin-kindlin2 complex formation. Specifically, serine 76 in the LRP1 cytoplasmic tail is crucial for the interaction with kindlin2, β1 integrin activation and cell adhesion. Interestingly, a loss of LRP1 induces the accumulation of several integrin receptors on the cell surface. Following internalization, intracellular trafficking of integrins is driven by LRP1 in a protein kinase C- and class II myosin-dependent manner. Ultimately, LRP1 dictates the fate of endocytosed β1 integrin by directing it down the pathway of lysosomal and proteasomal degradation. We propose that LRP1 mediates cell adhesion by orchestrating a multi-protein pathway to activate, traffic and degrade integrins. Thus, LRP1 may serve as a focal point in the integrin quality control system to ensure a firm connection to the extracellular matrix.

Indexed as

AnimalsCell MembraneCells, CulturedEmbryo, MammalianHumansIntegrin beta1Low Density Lipoprotein Receptor-Related Protein-1MiceMice, KnockoutProtein TransportProteolysisReceptors, LDLTumor Suppressor ProteinsIntegrin beta1Low Density Lipoprotein Receptor-Related Protein-1LRP1 protein, humanLrp1 protein, mouseReceptors, LDLTumor Suppressor ProteinsAdhesionIntegrinsLRP1Lysosomes

Identifiers

PMID29116364
PMCPMC11105666
OpenAlexW2767298048

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.