Gronning, L. M., Baillie, G. S. , Cederberg, A., Lynch, M. J., Houslay, M. D., Enerback, S. and Tasken, K. (2006) Reduced PDE4 expression and activity contributes to enhanced catecholamine-induced cAMP accumulation in adipocytes from FOXC2 transgenic mice. FEBS Letters, 580(17), pp. 4126-4130. (doi: 10.1016/j.febslet.2006.06.058)
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Abstract
Overexpression of forkhead transcription factor FOXC2 in white adipose tissue (WAT) leads to a lean phenotype resistant to diet-induced obesity. This is due, in part, to enhanced catecholamine-induced cAMP-PKA signaling in FOXC2 transgenic mice. Here we show that rolipram treatment of adipocytes from FOXC2 transgenic mice did not increase isoproterenol-induced cAMP accumulation to the same extent as in wild type cells. Accordingly, phosphodiesterase-4 (PDE4) activity was reduced by 75% and PDE4A5 protein expression reduced by 30–50% in FOXC2 transgenic WAT compared to wild type. Thus, reduced PDE4 activity in adipocytes from FOXC2 transgenic mice contributes to amplified β-AR induced cAMP responses observed in these cells.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Houslay, Professor Miles and Baillie, Professor George |
| Authors: | Gronning, L. M., Baillie, G. S., Cederberg, A., Lynch, M. J., Houslay, M. D., Enerback, S., and Tasken, K. |
| College/School: | College of Medical Veterinary and Life Sciences > School of Molecular Biosciences College of Medical Veterinary and Life Sciences > School of Psychology & Neuroscience |
| Journal Name: | FEBS Letters |
| Publisher: | Elsevier |
| ISSN: | 0014-5793 |
| ISSN (Online): | 1873-3468 |
| Published Online: | 30 June 2006 |
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