CD36 is significantly correlated with adipophilin in human carotid lesions and inversely correlated with plasma ApoAI

J Biomed Biotechnol. 2008:2008:813236. doi: 10.1155/2008/813236.

Abstract

OxLDL uptake and cholesterol efflux inhibition in macrophages play a key role in atherosclerotic plaque formation, rupture, and thrombotic ischemia. This study investigates genes implicated in OxLDL uptake (CD36, SRA), cholesterol efflux inhibition (adipophilin, ADFP), and inflammatory recruitments of leukocytes (IL-8) in plaque lesion areas (PLAs) compared to nonplaque lesion areas (NPLAs) in human carotid endarterectomy specimens. Gene and protein expressions were assayed using quantitative PCR and quantitative immunohistochemistry. Pearson tests were used to investigate potential correlation between (a) different gene expressions and (b) gene expression and patient's plasma constituents. CD36, SRA, ADFP, and IL-8 were shown to be significantly more expressed in PLA compared to NPLA. In PLA, a significant correlation was observed between CD36, SRA, ADFP, and IL-8 mRNA levels. Moreover, CD36 expression level was significantly inversely correlated to plasma marker ApoAI. The above investigated genes/proteins may play a key role in the maturation of atherosclerotic lesions.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Apolipoprotein A-I / blood*
  • CD36 Antigens / genetics
  • CD36 Antigens / metabolism*
  • Carotid Stenosis / genetics*
  • Carotid Stenosis / metabolism*
  • Cell Line, Tumor
  • Cholesterol, HDL / blood
  • Down-Regulation / drug effects
  • Endarterectomy, Carotid
  • Gene Expression / drug effects
  • Humans
  • Interleukin-8 / genetics
  • Interleukin-8 / metabolism
  • Lipoproteins, LDL / pharmacology
  • Macrophages / drug effects
  • Macrophages / metabolism
  • Macrophages / pathology
  • Membrane Proteins / genetics
  • Membrane Proteins / metabolism*
  • Perilipin-2
  • RNA, Messenger / analysis
  • Scavenger Receptors, Class A / genetics
  • Scavenger Receptors, Class A / metabolism
  • Up-Regulation / drug effects

Substances

  • Apolipoprotein A-I
  • CD36 Antigens
  • Cholesterol, HDL
  • Interleukin-8
  • Lipoproteins, LDL
  • Membrane Proteins
  • PLIN2 protein, human
  • Perilipin-2
  • RNA, Messenger
  • Scavenger Receptors, Class A
  • oxidized low density lipoprotein