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2015 ; 5
(ä): 12377
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Therapeutic potential of digitoflavone on diabetic nephropathy: nuclear factor
erythroid 2-related factor 2-dependent anti-oxidant and anti-inflammatory effect
#MMPMID26205695
Yang Y
; Chen G
; Cheng X
; Teng Z
; Cai X
; Yang J
; Sun X
; Lu W
; Wang X
; Yao Y
; Hu C
; Cao P
Sci Rep
2015[Jul]; 5
(ä): 12377
PMID26205695
show ga
Nuclear factor erythroid 2-related factor 2 (Nrf2) has emerged as a therapeutic
target in many diseases, because it can induce antioxidant enzymes and other
cytoprotective enzymes. Moreover, some Nrf2 activators have strong
anti-inflammatory activities. Oxidative stress and inflammation are major
components involved in the pathology of diabetic nephropathy. In the present
study, we evaluated the Nrf2-dependent anti-oxidative and anti-inflammatory
effects of digitoflavone in streptozotocin-induced diabetic nephropathy. The
molecular mechanisms of digitoflavone were investigated in vitro using
SV40-transformed mouse mesangial cells (SV40-Mes13). For the in vivo experiment,
diabetes was induced in Nrf2+/+ and Nrf2-/- mice by STZ injection, and
digitoflavone was administered 2 weeks after the STZ injection. Digitoflavone
induced Nrf2 activation and decreased oxidative damage, inflammation, TGF-?1
expression, extracellular matrix protein expression, and mesangial cell
hyperplasia in SV40-Mes13 cells. Digitoflavone-treated Nrf2+/+ mice, but not
Nrf2-/- mice, showed attenuated common metabolic disorder symptoms, improved
renal performance, minimized pathological alterations, and decreased oxidative
damage, inflammatory gene expression, inflammatory cell infiltration, TGF-?1
expression, and extracellular matrix protein expression. Our results show that
the anti-oxidative and anti-inflammatory effects of digitoflavone are mediated by
Nrf2 activation and that digitoflavone can be used therapeutically to improve
metabolic disorders and relieve renal damage induced by diabetes.