Novel polyhydroxylated fullerene suppresses intracellular oxidative stress together with repression of intracellular lipid accumulation during the differentiation of OP9 preadipocytes into adipocytes.

Abstract:

:Along with differentiation of mouse stromal preadipocytes OP9 into adipocytes, intracellular ROS, especially superoxide anion radicals detected by NBT reduction assay, were found to appreciably increase, mainly in cytoplasmic area, parallelling with increases in intracellular lipid-droplet accumulation, whereas undifferentiated OP9 cells kept lower levels of ROS and lipid-droplets. beta-Carotene bleaching assay showed that super-highly hydroxylated fullerene (SHH-F; C(60) (OH)(44)) exerted higher antioxidant ability than highly hydroxylated fullerene (HH-F; C(60) (OH)(32-34)) or lowly hydroxylated fullerene (LH-F; C(60) (OH)(6-12)). Differentiation-dependent lipid-droplet accumulation was suppressed by SHH-F or HH-F more efficiently than LH-F. Furthermore, SHH-F significantly repressed intracellular ROS generation accompanied by adipocyte differentiation. Thus, lipid-droplet accumulation was shown to positively correlate with ROS upon the differentiation of OP9 preadipocytes into adipocytes and SHH-F significantly suppressed intracellular ROS together with repression of intracellular lipid accumulation.

journal_name

Free Radic Res

journal_title

Free radical research

authors

Saitoh Y,Xiao L,Mizuno H,Kato S,Aoshima H,Taira H,Kokubo K,Miwa N

doi

10.3109/10715762.2010.499905

subject

Has Abstract

pub_date

2010-09-01 00:00:00

pages

1072-81

issue

9

eissn

1071-5762

issn

1029-2470

journal_volume

44

pub_type

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