Abstract
Avy/agouti (Avy) mice have late onset obesity related to overexpression of agouti signaling protein (ASP) in the hypothalamus. As mahogany modulates the actions of ASP, we tested the transport of mahogany peptide across the blood–brain barrier (BBB). The brain uptake of mahogany peptide was significantly higher in young Avy mice, and it preceded the surge of fat mass quantified by nuclear magnetic resonance. The results suggest a role of accelerated BBB transport in the epigenetics of Avy mice.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 12 print issues and online access
$259.00 per year
only $21.58 per issue
Buy this article
- Purchase on Springer Link
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
Similar content being viewed by others
References
Esnault C, Heidmann O, Delebecque F, Dewannieux M, Ribet D, Hance AJ et al. APOBEC3G cytidine deaminase inhibits retrotransposition of endogenous retroviruses. Nature 2005; 433: 430–433.
Wolff GL, Whittaker P . Dose-response effects of ectopic agouti protein on iron overload and age-associated aspects of the Avy/a obese mouse phenome. Peptides 2005; 26: 1697–1711.
Johnson PR, Hirsch J . Cellularity of adipose depots in six strains of genetically obese mice. J Lipid Res 1972; 13: 2–11.
Wolff G . Obesity as a pleiotropic effect of gene action. J Nutr 1997; 127: 1897S–1901S.
Jones BH, Kim JH, Zemel MB, Woychik RP, Michaud EJ, Wilkison WO et al. Upregulation of adipocyte metabolism by agouti protein: possible paracrine actions in yellow mouse obesity. Am J Physiol 1996; 270: E192–E196.
Dolinoy DC, Weidman JR, Waterland RA, Jirtle RL . Maternal genistein alters coat color and protects Avy mouse offspring from obesity by modifying the fetal epigenome. Environ Health Perspect 2006; 114: 567–572.
Blewitt ME, Vickaryous NK, Paldi A, Koseki H, Whitelaw E . Dynamic reprogramming of DNA methylation at an epigenetically sensitive allele in mice. PLos Genet 2006; 2: 399–405.
Gunn TM, Barsh GS . Mahogany/attractin: en route from phenotype to function. Trends Cardiovasc Med 2000; 10: 76–81.
Phan LK, Lin F, LeDuc CA, Chung WK, Leibel RL . The mouse mahoganoid coat color mutation disrupts a novel C3HC4 RING domain protein. J Clin Invest 2002; 110: 1449–1459.
Nagle DL, McGrail SH, Vitale J, Woolf EA, Dussault BJ, DiRocco L et al. The mahogany protein is a receptor involved in supression of obesity. Nature 1999; 398: 148–152.
Dinulescu DM, Fan W, Boston BA, McCall K, Lamoreux ML, Moore KJ et al. Mahogany (mg) stimulates feeding and increases basal metabolic rate independent of its suppression of agouti. Proc Natl Acad Sci USA 1998; 95: 12707–12712.
Nagle DL, McGrail SH, Vitale J, Woolf EA, Dussault Jr BJ, DiRocco L et al. The mahogany protein is a receptor involved in suppression of obesity. Nature 1999; 398: 148–152.
Kastin AJ, Akerstrom V . Mahogany (1377–1428) enters brain by a saturable transport system. J Pharmacol Exp Ther 2000; 294: 633–636.
Kastin AJ, Akerstrom V, Hackler L . Agouti-related protein (83–132) aggregates and crosses the blood-brain barrier slowly. Metabolism 2000; 49: 1444–1448.
Fisher SL, Yagaloff KA, Burn P . Melanocortin-4 receptor: a novel signalling pathway involved in body weight regulation. Int J Obes Relat Metab Disord 1999; 23: 54–58.
Tinsley FC, Taicher GZ, Heiman ML . Evaluation of a quantitative magnetic resonance method for mouse whole body composition analysis. Obes Res 2004; 12: 150–160.
Levin BE, Dunn-Meynell AA, Banks WA . Obesity-prone rats have normal blood-brain barrier transport but defective central leptin signaling before obesity onset. Am J Physiol 2004; 286: R143–R150.
Acknowledgements
This work was supported by NIH (NS45751 and NS46528 to WP, DK54880 to AJK). We thank Ms Courtney Cain for technical assistance, and Ms Loula Burton for editorial support.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Pan, W., Kastin, A. Mahogany, blood–brain barrier, and fat mass surge in AVY mice. Int J Obes 31, 1030–1032 (2007). https://doi.org/10.1038/sj.ijo.0803536
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1038/sj.ijo.0803536
Keywords
This article is cited by
-
Role of Astrocytes in Leptin Signaling
Journal of Molecular Neuroscience (2015)
-
Diet-Induced Obesity Suppresses Expression of Many Proteins at the Blood–Brain Barrier
Journal of Cerebral Blood Flow & Metabolism (2014)
-
Astrocytes Modulate Distribution and Neuronal Signaling of Leptin in the Hypothalamus of Obese A vy Mice
Journal of Molecular Neuroscience (2011)
-
IL-15 Receptor Deletion Results in Circadian Changes of Locomotor and Metabolic Activity
Journal of Molecular Neuroscience (2010)
-
The Cdk5/p35 Kinases Modulate Leptin-Induced STAT3 Signaling
Journal of Molecular Neuroscience (2009)