Abstract：
:2-Arachidonoylglicerol (2-AG) is an endocannabinoid that mimics the pharmacological effects of Δ⁹ tetrahydrocannabinol, the psychoactive component of the plant Cannabis sativa. It is present in many mammalian tissues, such as brain, liver, spleen, heart and kidney, where it exerts different biological effects either receptor mediated or independently of receptor activation. This work analyzes the effects of 2-AG on liver mitochondrial functions. It is shown that 2-AG causes a relevant decrease of calcium induced cyclosporine A sensitive cytochrome c release from mitochondria, a process representing an early event of the apoptotic program. Cyclosporin sensitive matrix swelling and ROS production measured under the same conditions are, on the contrary, almost unaffected or even enhanced, respectively, by 2-AG. Furthemore, 2-AG is found to stimulate resting state succinate oxidase activity and to inhibit oligomycin sensitive F₀F₁ ATP synthase activity. All these effects are apparently associated with 2-AG dependent alteration in the fluidity of the mitochondrial membranes, which was measured as generalized polarization of laurdan fluorescence.
journal_name
J Bioenerg Biomembrjournal_title
Journal of bioenergetics and biomembranesauthors
Zaccagnino P,D'Oria S,Romano LL,Di Venere A,Sardanelli AM,Lorusso Mdoi
10.1007/s10863-012-9431-6subject
Has Abstractpub_date
2012-04-01 00:00:00pages
273-80issue
2eissn
0145-479Xissn
1573-6881journal_volume
44pub_type
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