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2018 ; 5
(ä): 39
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Vascular Endothelial Growth Factor B and Its Signaling
#MMPMID29732375
Lal N
; Puri K
; Rodrigues B
Front Cardiovasc Med
2018[]; 5
(ä): 39
PMID29732375
show ga
In diabetes, compromised glucose utilization leads the heart to use FA almost
exclusively for ATP generation. Chronically, this adaptation unfortunately leads
to the conversion of FA to potentially toxic FA metabolites. Paired with
increased formation of reactive oxygen species related to excessive mitochondrial
oxidation of FA, can provoke cardiac cell death. To protect against this cell
demise, intrinsic mechanisms must be available to the heart. Vascular endothelial
growth factor B (VEGFB) may be one growth factor that plays an important role in
protecting against heart failure. As a member of the VEGF family, initial studies
with VEGFB focused on its role in angiogenesis. Surprisingly, VEGFB does not
appear to play a direct role in angiogenesis under normal conditions or even when
overexpressed, but has been implicated in influencing vascular growth indirectly
by affecting VEGFA action. Intriguingly, VEGFB has also been shown to alter gene
expression of proteins involved in cardiac metabolism and promote cell survival.
Conversely, multiple models of heart failure, including diabetic cardiomyopathy,
have indicated a significant drop in VEGFB. In this review, we will discuss the
biology of VEGFB, and its relationship to diabetic cardiomyopathy.