Evidence map›Paper›PMID 9294130›Full record

ArticleThe Journal of clinical investigation1997

The syndecan family of proteoglycans. Novel receptors mediating internalization of atherogenic lipoproteins in vitro.

I V Fuki, K M Kuhn, I R Lomazov, V L Rothman, G P Tuszynski, R V Iozzo, T L Swenson, E A Fisher, K J Williams

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of clinical investigation, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed
5.6field-weighted citation impact, top 4% 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

65 citing papers in PubMed, 239 citations in OpenAlex.

  1. Trial
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  4. Review
  5. The association between a genetic variant in theCardiovascular endocrinology & metabolism · 2023
    Article
  6. Article
  7. Article
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  9. Article
  10. The heparan sulfate proteoglycan grip on hyperlipidemia and atherosclerosis.Matrix biology : journal of the International Society for Matrix Biology · 2018
    Review
  11. Review
  12. Article
  13. Article
  14. Review
  15. Review
  16. Proteoglycan form and function: A comprehensive nomenclature of proteoglycans.Matrix biology : journal of the International Society for Matrix Biology · 2015
    Review
  17. Review
  18. Article
  19. Article
  20. Article

5 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

9 authors at 4 institutions in 1 country.

I V FukiDepartment of Medicine, Jefferson Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania 19107, USA.
K M Kuhn
I R Lomazov
V L Rothman
G P Tuszynski
R V Iozzo
T L Swenson
E A Fisher
K J Williams
Drexel University · USHahnemann University Hospital · USIcahn School of Medicine at Mount Sinai · USSidney Kimmel Cancer Center · US

Funding

NEOPLASTIC MODULATION OF PROTEOGLYCAN METABOLISMR01CA039481 · NCI · UNIVERSITY OF PENNSYLVANIA · PI IOZZO, RENATO V. · 1985 to 2020
$7.1M
HYDROYSIS OF VITAMIN A ESTERS IN LIVERR01DK044498 · NIDDK · U.S. DEPARTMENT OF AGRICULTURE · PI HARRISON, EARL HOWARD · 1992 to 2007
$1.6M
LIPOPROTEIN LIPASE AND ATHEROGENESISR01HL038956 · NHLBI · THOMAS JEFFERSON UNIVERSITY · PI WILLIAMS, KEVIN JON · 1994 to 1998
–
METABOLISM OF A SYNTHETIC ANTI-ATHEROGENIC LIPOPROTEINR29HL038956 · NHLBI · COLUMBIA UNIV NEW YORK MORNINGSIDE · PI WILLIAMS, KEVIN JON · 1987 to 1991
–
NCI NIH HHS CA39481NHLBI NIH HHS HL38956NIDDK NIH HHS DK44498
6 · The paper itself

Abstract

Cell-surface heparan sulfate proteoglycans have been shown to participate in lipoprotein catabolism, but the roles of specific proteoglycan classes have not been examined previously. Here, we studied the involvement of the syndecan proteoglycan family. First, transfection of CHO cells with expression vectors for several syndecan core proteins produced parallel increases in the cell association and degradation of lipoproteins enriched in lipoprotein lipase, a heparan-binding protein. Second, a chimeric construct, FcR-Synd1, that consists of the ectodomain of the IgG Fc receptor Ia linked to the highly conserved transmembrane and cytoplasmic domains of syndecan-1 directly mediated efficient internalization, in a process triggered by ligand clustering. Third, internalization of lipase-enriched lipoproteins via syndecan-1 and of clustered IgGs via the chimera showed identical kinetics (t1/2 = 1 h) and identical dose-response sensitivities to cytochalasin B, which disrupts microfilaments, and to genistein, which inhibits tyrosine kinases. In contrast, internalization of the receptor-associated protein, which proceeds via coated pits, showed a t1/2 < 15 min, limited sensitivity to cytochalasin B, and complete insensitivity to genistein. Thus, syndecan proteoglycans can directly mediate ligand catabolism through a pathway with characteristics distinct from coated pits, and might act as receptors for atherogenic lipoproteins and other ligands in vivo.

Indexed as

AnimalsChloroquineCHO CellsCricetinaeCytochalasin BDose-Response Relationship, DrugGenisteinHeparinHumansLipoprotein LipaseLipoproteins, LDLLow Density Lipoprotein Receptor-Related Protein-1Membrane GlycoproteinsProteoglycansRatsReceptors, IgGChloroquineCytochalasin BGenisteinHeparinLipoprotein LipaseLipoproteins, LDLLow Density Lipoprotein Receptor-Related Protein-1Membrane GlycoproteinsProteoglycansReceptors, IgGReceptors, ImmunologicReceptors, LDLRecombinant Fusion ProteinsSDC1 protein, humanSdc1 protein, ratSyndecan-1SyndecansThrombospondins

Identifiers

PMID9294130
PMCPMC508343
OpenAlexW1969349787

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.