Table 2.
Genetic models of DCM and related cardiac responses.
Upregulation | Downregulation | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
PPARα | PPARγ | LCACS1 | LPL | FATP1 | PKCβ | UCPDTA | CIRKO | GLUT4 | ATGL | PDK1 | PI3K | GCK | |
Heart failure markers | ↑ANP, BNP | ↑ANP, BNP | ↑ANP, BNP | ↑ANP, BNP | ↑ANP, BNP | ↑ANP, BNP | |||||||
| |||||||||||||
Cardiac abnormalities | |||||||||||||
Functional | |||||||||||||
Diastolic function | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓/~ | ↓ | ↓ | ↓ | ↓ |
Systolic function | ↓ | ↓ | ↓ | ↓ | ~ | ↓ | ~ | ↓ | ↓/~ | ↓ | ↓ | ~ | |
Structural | |||||||||||||
Hypertrophy | ↑ | ↑ | ↑ | ↑ | ↑ | ↑ | ↑ | ↓ | ↑ | ↑ | ↑ | ↑ | ↑ |
Inflammation | ↑ | ~ | |||||||||||
Fibrosis | ↑ | ↑ | ↑ | ↑ | ↑ | ↑ | ~ | ↑/~ | ↑ | ↑ | ↑ | ↑ | |
Steatosis | ↑ | ↑ | ↑ | ↑ | ↑ | ~ | ~ | ↑ | |||||
Apoptosis | ↑ | ↑ | ↑/~ | ↑ | ↑ | ~ | ↑ | ||||||
| |||||||||||||
Metabolic alterations | |||||||||||||
Glucose oxidation | ↓ | ~ | ↓ | ↓ | ↓/~ | ↑ | ↓ | ↓ | |||||
FA oxidation | ↑ | ↑ | ↑ | ↑ | ↑ | ↑ | ↓ | ↓ | ↓ | ↑ | ↑ | ||
Mitochondrial function | ↑ | ↑ | ↑ | ↑ | ↑ | ↓ | ↑ | ↑ | |||||
Oxidative stress | ↑ | ↑ | ↑ | ↑ | ↑ | ↑ | ↑ | ||||||
Ca2+ mobilization | ~ | ~ | ↓ | ~ | |||||||||
| |||||||||||||
References | [105, 106] | [107, 108] | [109, 110] | [111, 112] | [113, 114] | [96] | [117, 118] | [103, 104] | [97–99] | [115, 116] | [100] | [101] | [102] |
Genetic overexpression of PPARα, PPARγ, long-chain acyl-CoA synthetase-1 (LCACS1), lipoprotein lipase (LPL), fatty acid transport protein-1 (FATP1), PKCβ and uncoupling protein-diphtheria toxin A (UCPDTA), or ablation of cardiac-specific insulin receptor (CIRKO), GLUT4, adipose triglyceride lipase (ATGL), phosphoinositide dependent kinase-1 (PDK1), phosphoinositide-3 kinase (PI3K), and glucokinase (GCK) were forced in rodents for DCM. The associated cardiac effects and the levels of natriuretic peptides in plasma are also highlighted for each model. ↑, ↓ and ~ stand for increased, decreased, or not modified effect, respectively.