Evidence map›Paper›PMID 9259586›Full record

ArticleThe Journal of clinical investigation1997

Subendothelial retention of lipoprotein (a). Evidence that reduced heparan sulfate promotes lipoprotein binding to subendothelial matrix.

S Pillarisetti, L Paka, J C Obunike, L Berglund, I J Goldberg

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 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.9field-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

23 citing papers in PubMed, 114 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Review
  5. Review
  6. Article
  7. Extracellular matrix dynamics in vascular remodeling.American journal of physiology. Cell physiology · 2020
    Review
  8. A role for proteoglycans in vascular disease.Matrix biology : journal of the International Society for Matrix Biology · 2018
    Review
  9. Article
  10. Article
  11. Review
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Review
  18. Review
  19. Article
  20. Article
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

5 authors at 1 institution in 1 country.

S PillarisettiDivision of Preventive Medicine and Department of Medicine, Columbia University College of Physicians and Surgeons, New York 10032, USA. ps42@columbia.edu
L Paka
J C Obunike
L Berglund
I J Goldberg
Columbia University · US

Funding

Pathways of Tissue Lipid UptakeR01HL045095 · NHLBI · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI ABUMRAD, NADA A., GOLDBERG, IRA J · 1991 to 2024
$6.9M
EXTRACELLULAR REGULATION OF LIPOPROTEIN LIPASE ACTIVITYR37HL045095 · NHLBI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI GOLDBERG, IRA J · 2000 to 2009
$4.6M
LIPOPROTEIN LIPASE MODULATION OF TISSUE LIPID UPTAKEK14HL003323 · NHLBI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI OBUNIKE, JOSEPH C · 1995 to 1999
–
VITAMIN A TRANSPORT AND RETINOL-BINDING PROTEIN METABOLISMP50HL021006 · NHLBI · COLUMBIA UNIV NEW YORK MORNINGSIDE · 1985 to 1996
–
NHLBI NIH HHS HL-21006NHLBI NIH HHS HL-45095NHLBI NIH HHS HLK14-03323
6 · The paper itself

Abstract

Vessel wall subendothelial extracellular matrix, a dense mesh formed of collagens, fibronectin, laminin, and proteoglycans, has important roles in lipid and lipoprotein retention and cell adhesion. In atherosclerosis, vessel wall heparan sulfate proteoglycans (HSPG) are decreased and we therefore tested whether selective loss of HSPG affects lipoprotein retention. A matrix synthesized by aortic endothelial cells and a commercially available matrix (Matrigel; , Rutherford, NJ) were used. Treatment of matrix with heparinase/heparitinase (1 U/ml each) increased LDL binding by approximately 1.5-fold. Binding of lipoprotein (a) [Lp(a)] to both subendothelial matrix and Matrigel(R) increased 2-10-fold when the HSPG were removed by heparinase treatment. Incubation of endothelial cells with oxidized LDL (OxLDL) or lysolecithin resulted in decreased matrix proteoglycans and increased Lp(a) retention by matrix. The effect of OxLDL or lysolecithin on endothelial PG was abolished in the presence of HDL. The decrease in matrix HSPG was associated with production of a heparanase-like activity by OxLDL-stimulated endothelial cells. To test whether removal of HSPG exposes fibronectin, a candidate Lp(a) binding protein in the matrix, antifibronectin antibodies were used. The increased Lp(a) binding after HSPG removal was inhibited 60% by antifibronectin antibodies. Similarly, the increased Lp(a) binding to matrix from OxLDL-treated endothelial cells was inhibited by antifibronectin antibodies. We hypothesize that atherogenic lipoproteins stimulate endothelial cell production of heparanase. This enzyme reduces HSPG which in turn promotes Lp(a) retention.

Indexed as

AnimalsCattleCells, CulturedChondroitin LyasesCollagenDrug CombinationsEndotheliumExtracellular MatrixFibronectinsHeparan SulfateHeparan Sulfate ProteoglycansHeparin LyaseLamininLipoprotein(a)Lipoproteins, HDLLipoproteins, LDLChondroitin LyasesCollagenDrug CombinationsFibronectinsHeparan SulfateHeparan Sulfate ProteoglycansHeparin LyaseLamininLipoprotein(a)Lipoproteins, HDLLipoproteins, LDLLysophosphatidylcholinesmatrigelPolysaccharide-LyasesProteoglycans

Identifiers

PMID9259586
PMCPMC508259
OpenAlexW2050385895

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.