| Full text | |
| Author(s): |
DeOliveira, Caroline Candida
;
Caria, Cintia Rabelo E. Paiva
;
Ferreira Gotardo, Erica Martins
;
Ribeiro, Marcelo Lima
;
Gambero, Alessandra
Total Authors: 5
|
| Document type: | Journal article |
| Source: | European Journal of Pharmacology; v. 799, p. 154-159, MAR 15 2017. |
| Web of Science Citations: | 11 |
| Abstract | |
Adenosine receptors are expressed in adipose tissue and control physiological and pathological events such as lipolysis and inflammation. The aim of this study was to evaluate the activity of N-6-cyclopentyladenosine (CPA), a potent and selective A(1) adenosine receptor agonist; 2-p-(2-carboxyethyl)phenethylamino-5'-N-ethylcarbox-yamidoadenosine hydrochloride (CGS-21680), an A(2A) adenosine receptor agonist; and 5'-N-ethylcarboxami-doadenosine (NECA), a potent non-selective adenosine receptor agonist on adipose tissue inflammatory alterations induced by obesity in mice. Swiss mice were fed with a high-fat diet for 12 weeks and agonists were administered in the last two weeks. Body weight, adiposity and glucose homeostasis were evaluated. Inflammation in adipose tissue was assessed by evaluation of adipokine production and macrophage infiltration. Adenosine receptor signaling in adipose tissue was also evaluated. Mice that received CGS21680 presented an improvement in glucose homeostasis in association with systemically reduced inflammatory markers (TNF-alpha, PAI-1) and in the visceral adipose tissue (INF-alpha, MCP-1, macrophage infiltration). Activation of p38 signaling was found in adipose tissue of this group of mice. NECA-treated mice presented some improvements in glucose homeostasis associated with an observed weight loss. Mice that received CPA presented only a reduction in the ex vivo basal lipolysis rate measured within visceral adipose tissue. In conclusion, administration of the A2A receptor agonist to obese mice resulted in improvements in glucose homeostasis and adipose tissue inflammation, corroborating the idea that new therapeutics to treat obesity could emerge from these compounds. (AU) | |
| FAPESP's process: | 12/13193-9 - Obesity associated-alterations in adipose tissue: role of adenosine receptors. |
| Grantee: | Alessandra Gambero |
| Support Opportunities: | Regular Research Grants |