Review Article

Regulation of Sirtuin-Mediated Protein Deacetylation by Cardioprotective Phytochemicals

Table 2

Cardioprotective effect and mechanism of action of curcumin in preclinical studies.

Target HDAC or HATMolecular pathwayExperimental modelCardiovascular effectReference

↑ Sirt1↓ TGF-β, Col III, Col ITAC induced myocardial infraction
In vivo
Ang II-Induced hypertrophy
In vitro
↓ infract area
↓ fibrosis
↓ hypertrophy
[77]
↑ Sirt1↑ SOD
↑ Bcl2, ↓ Bax
Isolated ischemia-reperfusion model
Ex vivo
TAC induced myocardial infraction
In vivo
Simulated ischemia-reperfusion model
In vitro
Improved post-ischemic cardiac function
↓ myocardial infract size
↓ apoptotic index
↓ oxidative stress
Preserved serum CK activity
↓ LDH serum levels
[42]
↑ Sirt1↑ eNOS
↓ p21
H2O2-induced endothelial premature senescence
In vitro
↓ premature senescence
↓ oxidative stress
↓ apoptosis
Preverved NO synthesis
[79]
↑ Sirt1↑ AMPKα
↑ LXR-α
↑ ATP binding cassette transporter 1
Atherogenic model
In vitro
Antiatherogenic
↓ cellular cholesterol
↑ cholesterol efflux from THP-1
[78]
↓ p300-HAT↓ acetylation of histones 3 and 4LPS-induced cardiac hypertrophy
In vivo
↓ cardiac hypertrophy[83]
↓ p300-HAT↓ TGF-β/Smad2High glucose-induced cardiac hypertrophy
In vitro
Streptozotocin-induced cardiac dysfunction
In vivo
↓ cardiac hypertrophy
↓ extracellular matrix production
↑ diastolic function
[81]
↓ p300-HAT↓ GATA4
↓ NF-κB
↓ acetylation of histones 3 and 4
TAC induced myocardial Infraction
In vivo
PE-induced hypertrophy
In vitro
↓ LV wall thickness
Preserved systolic function
↓ hypertrophy
[77]
↓ p300-HAT↓ Ac-p53
↓ ANF, β-MHC
↓ Bax, Cyt c, caspase 3, and PARP
TAC induced myocardial Infraction
In vivo
Ang II-Induced hypertrophy
In vitro
↓ hypertrophy
↓ apoptosis
[80]
↓ p300-HAT↓ GATA4
↓ p53
Hypoxia-induced hypertrophy model
In vitro
Stabilized mitochondrial membrane potential
Restored lactate, acetyl-coA pyruvate, and glucose levels
[82]

AMPK: adenosine monophosphate-activated kinase; ANF: atrial natriuretic factor; Ang II: angiotensin II; B-MHC: myosin heavy chain B; CK: creatine kinase; Cyt-c: cytochrome c; EF: ejection fraction; eNOS: endothelial nitrix oxide synthase; LDH: lactate dehydrogenase; LXR-α: liver X receptor α; LV: left ventricular; NE: norepinephrine; PAI-I: plasminogen activator inhibitor 1; PARP: poly(ADP-ribose) polymerase; PGC1-α: peroxisome proliferator activator of transcription (PPARy) coactivator 1α; PE: phenylephrine TAC: transverse aortic constriction; SOD: superoxide dismutase.