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New way to boost potency of natural pain relief chemical in body

Date:
November 21, 2011
Source:
University of California - Irvine
Summary:
Researchers have discovered a new means of enhancing the effects of anandamide -- a natural, marijuana-like chemical in the body that provides pain relief.

UC Irvine and Italian researchers have discovered a new means of enhancing the effects of anandamide -- a natural, marijuana-like chemical in the body that provides pain relief.

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Led by Daniele Piomelli, UCI's Louise Turner Arnold Chair in the Neurosciences, the team identified an "escort" protein in brain cells that transports anandamide to sites within the cell where enzymes break it down. They found that blocking this protein -- called FLAT -- increases anandamide's potency.

Previous work by the researchers indicates that compounds boosting anandamide's natural abilities could form the basis of pain medications that don't produce sedation, addiction or other central nervous system side effects common with existing painkillers, such as opiates.

"These findings raise hope that the analgesic properties of marijuana can be harnessed for new, safe drugs," said Piomelli, a professor of pharmacology. "Specific drug compounds we are creating that amplify the actions of natural, marijuana-like chemicals are showing great promise."

For the study, which appears in the Nov. 20 online version of Nature Neuroscience, he and his colleagues used computational methods to understand how FLAT binds with anandamide and escorts it to cell sites to be degraded by fatty acid amide hydrolase (FAAH) enzymes.

Anandamide has been dubbed "the bliss molecule" for its similarities to the active ingredient in marijuana. A neurotransmitter that's part of the body's endocannabinoid system, it's been shown in studies by Piomelli and others to play analgesic, antianxiety and antidepressant roles. It's also important in regulating food consumption. Blocking FAAH activity enhances several effects of anandamide without generating the "high" seen with marijuana.

Piomelli and his collaborators speculate that inhibiting FLAT (FAAH-like anandamide transporters) might be particularly useful in controlling certain forms of pain -- that caused by damage to the central nervous system, for example -- and curbing addiction to such drugs as nicotine and cocaine.

Researchers from UCI, Italy's University of Parma and University of Bologna, and the Italian Institute of Technology participated in the study, which was supported by grants from the U.S. National Institute on Drug Abuse, the U.S. National Institute on Alcohol Abuse & Alcoholism, and the U.S. National Institute of General Medical Sciences.


Story Source:

The above story is based on materials provided by University of California - Irvine. Note: Materials may be edited for content and length.


Journal Reference:

  1. Jin Fu, Giovanni Bottegoni, Oscar Sasso, Rosalia Bertorelli, Walter Rocchia, Matteo Masetti, Ana Guijarro, Alessio Lodola, Andrea Armirotti, Gianpiero Garau, Tiziano Bandiera, Angelo Reggiani, Marco Mor, Andrea Cavalli, Daniele Piomelli. A catalytically silent FAAH-1 variant drives anandamide transport in neurons. Nature Neuroscience, 2011; DOI: 10.1038/nn.2986

Cite This Page:

University of California - Irvine. "New way to boost potency of natural pain relief chemical in body." ScienceDaily. ScienceDaily, 21 November 2011. <www.sciencedaily.com/releases/2011/11/111121142501.htm>.
University of California - Irvine. (2011, November 21). New way to boost potency of natural pain relief chemical in body. ScienceDaily. Retrieved December 20, 2014 from www.sciencedaily.com/releases/2011/11/111121142501.htm
University of California - Irvine. "New way to boost potency of natural pain relief chemical in body." ScienceDaily. www.sciencedaily.com/releases/2011/11/111121142501.htm (accessed December 20, 2014).

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