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GPR55 is a cannabinoid receptor that increases intracellular calcium and inhibits M current
Open accessAbstract
The CB 1 cannabinoid receptor mediates many of the psychoactive effects of Δ 9 THC, the principal active component of cannabis. However, ample evidence suggests that additional non-CB 1 /CB 2 receptors may contribute to the behavioral, vascular, and immunological actions of Δ 9 THC and endogenous cannabinoids. Here, we provide further evidence that GPR55, a G protein-coupled receptor, is a cannabinoid receptor. GPR55 is highly expressed in large dorsal root ganglion neurons and, upon activation by various cannabinoids (Δ 9 THC, the anandamide analog methanandamide, and JWH015) increases intracellular calcium in these neurons. Examination of its signaling pathway in HEK293 cells transiently expressing GPR55 found the calcium increase to involve G q , G 12 , RhoA, actin, phospholipase C, and calcium release from IP 3 R-gated stores. GPR55 activation also inhibits M current. These results establish GPR55 as a cannabinoid receptor with signaling distinct from CB 1 and CB 2 .
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Cites
Molecular characterization of a peripheral receptor for cannabinoids
Munro, S., Thomas, K. L., & Abu-Shaar, M. (1993) · Nature · doi:10.1038/365061a0 · Cited by 5,092
Structure of a cannabinoid receptor and functional expression of the cloned cDNA
Matsuda, L. A., Lolait, S. J., Brownstein, M. J., Young, A. C., & Bonner, T. I. (1990) · Nature · doi:10.1038/346561a0 · Cited by 5,011
The orphan receptor GPR55 is a novel cannabinoid receptor
Ryberg, E., Larsson, N., Sjögren, S., Hjorth, S., Hermansson, N., Leonova, J., Elebring, T., Nilsson, K., Drmota, T., & Greasley, P. J. (2007) · British Journal of Pharmacology · doi:10.1038/sj.bjp.0707460 · Cited by 1,568
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Cited by
Emerging strategies for exploiting cannabinoid receptor agonists as medicines
Pertwee, R. G. (2009) · British Journal of Pharmacology · doi:10.1111/j.1476-5381.2008.00048.x · Cited by 436
Cabral, G. A., & Griffin-Thomas, L. (2009) · Expert Reviews in Molecular Medicine · doi:10.1017/s1462399409000957 · Cited by 408
Petrosino, S., & Di Marzo, V. (2017) · British Journal of Pharmacology · doi:10.1111/bph.13580 · Cited by 328
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Programming of neural cells by (endo)cannabinoids: from physiological rules to emerging therapies
Maccarrone, M., Guzmán, M., Mackie, K., Doherty, P., & Harkany, T. (2014) · Nature Reviews Neuroscience · doi:10.1038/nrn3846 · Cited by 298
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Metadata
- Authors
- Lauckner, J. E., Jensen, J. B., Chen, H.-Y., Lu, H.-C., Hille, B., & Mackie, K.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 2008-02-19
- Volume
- 105
- Issue
- 7
- Pages
- 2699-2704
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2082433795
- Cited by
- 712
- References
- 4
- FWCI
- 35.59
- Type
- journal article
- Language
- en
- Open access
- green
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- Lauckner, J. E., Jensen, J. B., Chen, H.-Y., Lu, H.-C., Hille, B., & Mackie, K. (2008). GPR55 is a cannabinoid receptor that increases intracellular calcium and inhibits M current. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.0711278105
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