Abstract
Leptin has emerged as a major regulator of adiposity. Leptin is released into the blood from fatcells and circulates to the brain where it crosses the bloodbrain barrier (BBB) to act at receptors within the central nervous system to affect appetite, thermogenesis, and a number of other actions. In humansand in many rodent models, resistance to leptin appears to be a chief cause of obesity. Determining the cause of leptin resistance is fundamental to developing strategies for the use of leptin in obesity. Theliterature characterizing the transport of leptin across the BBB is reviewed. This literature stronglysuggests that the cause of leptin resistance is due a decreased transport of leptin across the BBB in obese humans and rodents. The main cause of this resistance appears to be an impairment in the activity of the transporter rather than just simply saturation at higher doses. Strategies to overcome impaired BBB transport are reviewed, including the use of allosteric regulators and the delivery of material by the intrathecal route.
Current Pharmaceutical Design
Title: Leptin Transport Across the Blood-Brain Barrier: Implications for the Cause and Treatment of Obesity
Volume: 7 Issue: 2
Author(s): William A. Banks
Affiliation:
Abstract: Leptin has emerged as a major regulator of adiposity. Leptin is released into the blood from fatcells and circulates to the brain where it crosses the bloodbrain barrier (BBB) to act at receptors within the central nervous system to affect appetite, thermogenesis, and a number of other actions. In humansand in many rodent models, resistance to leptin appears to be a chief cause of obesity. Determining the cause of leptin resistance is fundamental to developing strategies for the use of leptin in obesity. Theliterature characterizing the transport of leptin across the BBB is reviewed. This literature stronglysuggests that the cause of leptin resistance is due a decreased transport of leptin across the BBB in obese humans and rodents. The main cause of this resistance appears to be an impairment in the activity of the transporter rather than just simply saturation at higher doses. Strategies to overcome impaired BBB transport are reviewed, including the use of allosteric regulators and the delivery of material by the intrathecal route.
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Cite this article as:
William A. Banks , Leptin Transport Across the Blood-Brain Barrier: Implications for the Cause and Treatment of Obesity, Current Pharmaceutical Design 2001; 7 (2) . https://dx.doi.org/10.2174/1381612013398310
DOI https://dx.doi.org/10.2174/1381612013398310 |
Print ISSN 1381-6128 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4286 |
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