Adipocytes recognize and degrade oxidized low density lipoprotein through CD36.

Abstract:

:CD36 expressed on adipocytes is thought to function as a fatty acid transporter (FAT). Here we report that adipocytes can endocytose and lysosomally degrade OxLDL, mainly mediated by CD36. Mouse 3T3-L1 preadipocytes showed marked increase in uptake and degradation of (125)I-OxLDL during their differentiation to adipocytes. RT-PCR and immunoblot analysis indicated that expression of CD36 but not of scavenger receptor class A or macrosialin is required for the increase in uptake and degradation of (125)I-OxLDL in 3T3-L1 cells. An anti-CD36 antibody inhibited both uptake and degradation activities of (125)I-OxLDL up to 60%. These results strongly suggest that adipocytes may function as phagocytes like macrophages and that CD36 plays a novel role in adipose tissues.

authors

Kuniyasu A,Hayashi S,Nakayama H

doi

10.1016/s0006-291x(02)00666-6

subject

Has Abstract

pub_date

2002-07-12 00:00:00

pages

319-23

issue

2

eissn

0006-291X

issn

1090-2104

pii

S0006291X02006666

journal_volume

295

pub_type

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