Camilla Di Meo, Daniel Tortolani, Sara Standoli, Francesca Ciaramellano, Beatrice Clotilde Angelucci, Annamaria Tisi, Salam Kadhim, Eric Hsu, Cinzia Rapino, Mauro Maccarrone
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引用次数: 0
Abstract
Cannabinol (CBN) is a secondary metabolite of cannabis whose beneficial activity on inflammatory diseases of human skin has attracted increasing attention. Here, we sought to investigate the possible modulation by CBN of the major elements of the endocannabinoid system (ECS), in both normal and lipopolysaccharide‐inflamed human keratinocytes (HaCaT cells). CBN was found to increase the expression of cannabinoid receptor 1 (CB1) at gene level and that of vanilloid receptor 1 (TRPV1) at protein level, as well as their functional activity. In addition, CBN modulated the metabolism of anandamide (AEA) and 2‐arachidonoylglicerol (2‐AG), by increasing the activities of N‐acyl phosphatidylethanolamines‐specific phospholipase D (NAPE‐PLD) and fatty acid amide hydrolase (FAAH)—the biosynthetic and degradative enzyme of AEA—and that of monoacylglycerol lipase (MAGL), the hydrolytic enzyme of 2‐AG. CBN also affected keratinocyte inflammation by reducing the release of pro‐inflammatory interleukin (IL)‐8, IL‐12, and IL‐31 and increasing the release of anti‐inflammatory IL‐10. Of note, the release of IL‐31 was mediated by TRPV1. Finally, the mitogen‐activated protein kinases (MAPK) signaling pathway was investigated in inflamed keratinocytes, demonstrating a specific modulation of glycogen synthase kinase 3β (GSK3β) upon treatment with CBN, in the presence or not of distinct ECS‐directed drugs. Overall, these results demonstrate that CBN modulates distinct ECS elements and exerts anti‐inflammatory effects—remarkably via TRPV1—in human keratinocytes, thus holding potential for both therapeutic and cosmetic purposes.
期刊介绍:
BioFactors, a journal of the International Union of Biochemistry and Molecular Biology, is devoted to the rapid publication of highly significant original research articles and reviews in experimental biology in health and disease.
The word “biofactors” refers to the many compounds that regulate biological functions. Biological factors comprise many molecules produced or modified by living organisms, and present in many essential systems like the blood, the nervous or immunological systems. A non-exhaustive list of biological factors includes neurotransmitters, cytokines, chemokines, hormones, coagulation factors, transcription factors, signaling molecules, receptor ligands and many more. In the group of biofactors we can accommodate several classical molecules not synthetized in the body such as vitamins, micronutrients or essential trace elements.
In keeping with this unified view of biochemistry, BioFactors publishes research dealing with the identification of new substances and the elucidation of their functions at the biophysical, biochemical, cellular and human level as well as studies revealing novel functions of already known biofactors. The journal encourages the submission of studies that use biochemistry, biophysics, cell and molecular biology and/or cell signaling approaches.