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2015 ; 6
(ä): 133
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FGF21 and Cardiac Physiopathology
#MMPMID26379627
Planavila A
; Redondo-Angulo I
; Villarroya F
Front Endocrinol (Lausanne)
2015[]; 6
(ä): 133
PMID26379627
show ga
The heart is not traditionally considered either a target or a site of fibroblast
growth factor-21 (FGF21) production. However, recent findings indicate that FGF21
can act as a cardiomyokine; that is, it is produced by cardiac cells at
significant levels and acts in an autocrine manner on the heart itself. The heart
is sensitive to the effects of FGF21, both systemic and locally generated, owing
to the expression in cardiomyocytes of ?-Klotho, the key co-receptor known to
confer specific responsiveness to FGF21 action. FGF21 has been demonstrated to
protect against cardiac hypertrophy, cardiac inflammation, and oxidative stress.
FGF21 expression in the heart is induced in response to cardiac insults, such as
experimental cardiac hypertrophy and myocardial infarction in rodents, as well as
in failing human hearts. Intracellular mechanisms involving PPAR? and Sirt1
mediate transcriptional regulation of the FGF21 gene in response to exogenous
stimuli. In humans, circulating FGF21 levels are elevated in coronary heart
disease and atherosclerosis, and are associated with a higher risk of
cardiovascular events in patients with type 2 diabetes. These findings provide
new insights into the role of FGF21 in the heart and may offer potential
therapeutic strategies for cardiac disease.