Cited by 252Atherosclerosis and Cardiovascular DiseasesCholesterol and Lipid MetabolismLipoproteins and Cardiovascular Health

Aggregation, fusion, and vesicle formation of modified low density lipoprotein particles: molecular mechanisms and effects on matrix interactions

Open access
Öörni, Katariina, Pentikäinen, Markku O., Ala-Korpela, Mika, Kovanen, Petri T.·2000·Journal of Lipid Research

Abstract

Initiation of atherosclerosis is characterized by accumulation of aggregates of small lipid droplets and vesicles in the extracellular matrix of the arterial intima. The droplets and vesicles have features that suggest that they are formed from modified plasma-derived low density lipoprotein (LDL) particles. A variety of hydrolytic enzymes and prooxidative agents that could lead to extracellular assembly of LDL-derived droplets and vesicles are present in the arterial intima. In fact, in vitro studies have demonstrated that extensive oxidation of LDL and treatment of LDL with either proteolytic or lipolytic enzymes will induce LDL aggregation and fusion and treatment of LDL with cholesterol esterase will cause formation of vesicles. Fusion of LDL particles proceeds faster in vitro when they are bound to components of the extracellular matrix derived from the arterial intima, such as proteoglycans, and, depending on the type of modification, the strength of binding of modified LDL to the matrix components may either increase or decrease. In the present article, we discuss molecular mechanisms that provide clues as to how aggregated lipid droplets and vesicles may be derived from modified LDL particles. We also describe how these modified forms of LDL, by means of their trapping to the extracellular matrix, may lead to extracellular lipid accumulation in the arterial intima.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1016/s0022-2275(20)31964-7

Cites

147 of 147 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Retained lipoproteins bound to the arterial intima extracellular matrix are susceptible to modification by intimal oxidizing agents, proteases, and lipases.

    “The retained lipoproteins (that is, those bound to the extracellular matrix of the arterial intima) are susceptible to modification by intimal oxidizing agents, proteases and lipases43,46,47.”
  • Oxidative, proteolytic, and lipolytic modifications induce LDL aggregation, and LDL aggregation susceptibility is associated with risk of cardiovascular death.

    “Oxidative, proteolytic and lipolytic modifications induce LDL aggregation46, and the aggregation susceptibility of LDL was shown to be associated with the risk of cardiovascular death55.”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

1 of the 148 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Öörni, K., Pentikäinen, M. O., Ala-Korpela, M., & Kovanen, P. T.
Affiliations
Wihuri Research Institute (FI)
Corresponding author
Kovanen, Petri T.
Venue
Journal of Lipid Research
Publisher
Elsevier BV
Published
2000-11
Volume
41
Issue
11
Pages
1703-1714
ISSN
0022-2275 (ISSN-L)
OpenAlex
W1853133898
Cited by
252
References
148
Citations by year
2026: 2 · 2025: 9 · 2024: 4 · 2023: 5 · 2022: 6 · 2021: 13 · 2020: 9 · 2019: 8 · 2018: 11 · 2017: 4 · 2016: 5 · 2015: 8 · 2014: 12 · 2013: 8 · 2012: 21
FWCI
2.48
Type
journal article
Language
en
Open access
Locations
  • Journal of Lipid Research (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Atherosclerosis and Cardiovascular Diseases
  • Health Sciences › Medicine › Surgery › Cholesterol and Lipid Metabolism
  • Health Sciences › Medicine › Surgery › Lipoproteins and Cardiovascular Health
Keywords
modified low-density lipoprotein, LDL oxidation, lipoprotein aggregation, vesicle formation, lipid droplets, atherosclerosis initiation, extracellular matrix, proteoglycans, cholesterol esterase, lipolytic enzymes, proteolytic enzymes, arterial intima
MeSH terms
Animals, Arteries, Arteriosclerosis, Chemistry, Physical, Extracellular Matrix, Humans, Lipolysis, Lipoproteins, LDL, Liposomes, Endopeptidases, Proteoglycans, Chemical Phenomena

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review