Reviews in Endocrine and Metabolic Disorders

, Volume 12, Issue 3, pp 127–140

Hypothalamic AMP-activated protein kinase as a mediator of whole body energy balance

  • Pablo Blanco Martínez de Morentin
  • Carmen R. González
  • Asisk K. Saha
  • Luís Martins
  • Carlos Diéguez
  • Antonio Vidal-Puig
  • Manuel Tena-Sempere
  • Miguel López
Article

DOI: 10.1007/s11154-011-9165-5

Cite this article as:
Blanco Martínez de Morentin, P., González, C.R., Saha, A.K. et al. Rev Endocr Metab Disord (2011) 12: 127. doi:10.1007/s11154-011-9165-5

Abstract

The AMP-activated protein kinase (AMPK) is the downstream constituent of a kinase cascade that acts as a sensor of cellular energy levels. Current data unequivocally indicate that hypothalamic AMPK plays a key role in the control of the whole body energy balance, by integrating peripheral signals, such as hormones and metabolites, with central signals, such as neuropeptides, and eliciting allostatic changes in energy homeostasis. Although the molecular details of these interactions are not fully understood, recent evidence has suggested that the interaction between AMPK with hypothalamic lipid metabolism and other metabolic sensors, such as the uncoupling protein 2 (UCP-2), the mammalian target of rapamycin (mTOR) and the deacetylase sirtuin 1 (SIRT1), may play a main role in the hypothalamic control of feeding and energy expenditure. Here, we summarize the role of hypothalamic AMPK as whole body energy gauge. Understanding this key molecule and especially its functions at central level may provide new therapeutic targets for the treatment of metabolic alterations and obesity.

Keywords

AMPKHypothalamusMetabolismObesity

Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Pablo Blanco Martínez de Morentin
    • 1
    • 2
  • Carmen R. González
    • 1
    • 2
  • Asisk K. Saha
    • 3
  • Luís Martins
    • 1
    • 2
  • Carlos Diéguez
    • 1
    • 2
  • Antonio Vidal-Puig
    • 4
  • Manuel Tena-Sempere
    • 2
    • 5
  • Miguel López
    • 1
    • 2
  1. 1.Department of Physiology, School of MedicineUniversity of Santiago de Compostela—Instituto de Investigación SanitariaSantiago de CompostelaSpain
  2. 2.CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn)Santiago de CompostelaSpain
  3. 3.Diabetes Research Unit, EBRC-827Boston Medical CenterBostonUSA
  4. 4.Institute of Metabolic Science, Metabolic Research Laboratories, Addenbrooke’s HospitalUniversity of CambridgeCambridgeUK
  5. 5.Department of Cell Biology, Physiology and ImmunologyUniversity of CórdobaCórdobaSpain