Glycosylation of HDL-Associated Proteins and Its Implications in Cardiovascular Disease Diagnosis, Metabolism and

Eduardo Z Romo1, Angela M Zivkovic1

  • 1Department of Nutrition, University of California, Davis, Davis, CA, United States.

Insights

Glycosylation of high-density lipoprotein (HDL) particles is emerging as crucial for cardiovascular disease (CVD) prevention. Studying HDL glycosylation may reveal new diagnostic biomarkers and therapeutic targets for CVD.

Area of Science:

  • Biochemistry
  • Cardiovascular Research
  • Glycobiology

Background:

  • High-density lipoprotein (HDL) is vital in preventing cardiovascular disease (CVD).
  • HDL particles are increasingly recognized to carry diverse glycosylated proteins.
  • The role of this glycosylation in HDL structure, function, and metabolism is under investigation.

Purpose of the Study:

  • To review the current evidence on HDL-associated protein glycosylation.
  • To explore the potential of HDL glycosylation profiling for CVD diagnostics.
  • To discuss how glycosylation impacts HDL function and potential therapeutic strategies.

Main Methods:

  • Literature review of studies on HDL glycosylation and CVD.
  • Analysis of existing data on differential glycosylation in pathological states.
  • Synthesis of information on glycosylation pathways and their relevance to HDL.

Main Results:

  • Early studies indicate differential glycosylation of HDL proteins in various diseases.
  • Preliminary evidence suggests a link between HDL glycosylation profiles and cardiovascular outcomes.
  • Glycosylation significantly influences HDL structure, function, and metabolism.

Conclusions:

  • HDL glycosylation is a promising area for uncovering novel CVD mechanisms and biomarkers.
  • HDL glycosylation profiling holds potential for diagnostic development in CVD.
  • Modifying HDL glycosylation may offer future therapeutic benefits for cardiovascular health.

Related Concept Videos

Proteoglycans01:05

Proteoglycans

Glycans, a class of complex heterogeneous molecules, can be covalently attached to proteins to form glycosylated proteins that regulate various physiological and pathological processes. Glycosylated proteins or glycoproteins comprise N-linked and O-linked oligosaccharides. O-glycosylation is the most common type of protein glycosylation. Here, glycans attach to the oxygen atom of the hydroxyl groups of Serine or Threonine residues. O-linked glycosylation occurs later in protein processing,...
4.0K
Protein Glycosylation01:25

Protein Glycosylation

Glycosylation, the most common post-translational modification for proteins, serves diverse functions. Adding sugars to proteins makes the proteins more resistant to proteolytic digestion. Glycosylated proteins can act as markers and receptors to promote cell-cell adhesion. Additionally, they have many essential quality control functions in the cell, such as correct protein folding and facilitating transport of misfolded proteins to the cytosol, which can be degraded.
Glycosylation occurs in...
7.2K
Overview of Lipid Metabolism01:24

Overview of Lipid Metabolism

Lipid metabolism is a crucial process in the human body that involves the synthesis and degradation of lipids. This process is essential for energy production, cell membrane formation, and hormone production, among other functions.
Lipolysis: The Breakdown of Lipids:
Lipolysis is the process of breaking down lipids, particularly triglycerides, into glycerol and fatty acids. This process typically occurs in the adipose tissue and is triggered by various hormones, including glucagon and...
2.4K
Coronary Artery Disease I: Introduction01:30

Coronary Artery Disease I: Introduction

Coronary Artery Disease (CAD): An Overview with Scientific InsightsCoronary Artery Disease (CAD), often referred to as C-A-D, is a prevalent blood vessel disorder classified under the broader category of atherosclerosis. Atherosclerosis is a pathological process characterized by the hardening and narrowing of arteries due to the accumulation of atherosclerotic plaques. These plaques are composed of cholesterol, fatty substances, inflammatory cells, calcium, and fibrin, reducing blood flow to...
54
Overview of Carbohydrate Metabolism01:19

Overview of Carbohydrate Metabolism

Carbohydrate metabolism is a fundamental biochemical process that ensures a constant supply of energy to living cells. The most important carbohydrate is glucose, which can be broken down via glycolysis to enter into the Krebs cycle and eventually lead to the production of ATP through oxidative phosphorylation.
Glucose transport into cells is facilitated by a family of transport proteins called GLUT (Glucose Transporters). GLUT4 is the primary glucose transporter for insulin-stimulated glucose...
1.7K
Oligosaccharide Assembly01:24

Oligosaccharide Assembly

Protein glycosylation starts in the ER lumen and continues in the Golgi apparatus. Glycosyltransferases catalyze the addition of sugar molecules or glycosylation of proteins. Usually, these enzymes add sugars to the hydroxyl groups of selected serine or threonine residues to form O-linked glycans or the amino groups of asparagine residues to form N-linked glycans. Different positions on the same polypeptide chain can contain differently linked glycans.
Multiple sugar molecules that may or may...
3.0K