Novel biological functions of high-density lipoprotein cholesterol

Research output: Contribution to journalArticle

113 Citations (Scopus)

Abstract

In addition to its role in reverse cholesterol transport, high-density lipoprotein (HDL) cholesterol has direct action on numerous cell types that influence cardiovascular and metabolic health. Cellular responses to HDL entail its capacity to invoke cholesterol efflux that causes signal initiation via scavenger receptor class B, type I, and plasma membrane receptor activation by HDL cargo molecules. In endothelial cells and their progenitors, HDL attenuates apoptosis and stimulates proliferation and migration. HDL also has diverse anti-inflammatory actions in both endothelial cells and leukocytes. In vascular smooth muscles, HDL tempers proinflammatory, promigratory, and degradative processes, and through actions on endothelium and platelets HDL is antithrombotic. There are additional actions of HDL of potential cardiovascular consequence that are indirect, including the capacities to promote pancreatic β-cell insulin secretion, to protect pancreatic β cells from apoptosis, and to enhance glucose uptake by skeletal muscle myocytes. Furthermore, HDL decreases white adipose tissue mass, increases energy expenditure, and promotes the production of adipose-derived cytokine adiponectin that has its own vascular-protective properties. Many of these numerous actions of HDL have been observed not only in cell culture and animal models but also in human studies, and assessments of these functions are now being applied to patient populations to better-elucidate which actions of HDL may contribute to its cardioprotective potential and how they can be quantified and targeted. Further work on the many mechanisms of HDL action promises to reveal new prophylactic and therapeutic strategies to optimize both cardiovascular and metabolic health.

Original languageEnglish (US)
Pages (from-to)1079-1090
Number of pages12
JournalCirculation Research
Volume111
Issue number8
DOIs
StatePublished - Sep 2012

Fingerprint

HDL Lipoproteins
HDL Cholesterol
Cholesterol
CD36 Antigens
Apoptosis
White Adipose Tissue
Adiponectin
Skeletal Muscle Fibers
Health
Vascular Smooth Muscle
Energy Metabolism
Endothelium
Blood Vessels
Skeletal Muscle
Leukocytes
Anti-Inflammatory Agents
Blood Platelets
Endothelial Cells
Animal Models
Cell Culture Techniques

Keywords

  • endothelium
  • high-density lipoprotein cholesterol
  • nitric oxide synthase
  • scavenger receptor class B, type I

ASJC Scopus subject areas

  • Physiology
  • Cardiology and Cardiovascular Medicine

Cite this

Novel biological functions of high-density lipoprotein cholesterol. / Mineo, Chieko; Shaul, Philip W.

In: Circulation Research, Vol. 111, No. 8, 09.2012, p. 1079-1090.

Research output: Contribution to journalArticle

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