γ-Irradiation Enhances Apoptosis Induced by Cannabidiol, a Non-psychotropic Cannabinoid, in Cultured HL-60 Myeloblastic Leukemia Cells

Ruth Gallily The Lautenberg Center for General and Tumor Immunology, The Hebrew University Medical Faculty Ein Kerem Campus 1120 Jerusalen Israel

Tal Even-Chen The Lautenberg Center for General and Tumor Immunology, The Hebrew University Medical Faculty Ein Kerem Campus 1120 Jerusalen Israel

Galia Katzavian The Lautenberg Center for General and Tumor Immunology, The Hebrew University Medical Faculty Ein Kerem Campus 1120 Jerusalen Israel

Dan Lehmann Interdepartmental Equipment Unit, The Hebrew University Medical Faculty Ein Kerem Campus 1120 Jerusalen Israel

Arie Dagan Department of Biochemistry, The Hebrew University Medical Faculty Ein Kerem Campus 1120 Jerusalen Israel

Raphael Mechoulam Department of Medicinal Chemistry and Natural Products. The Hebrew University Medical Faculty Ein Kerem Campus 1120 Jerusalen Israel

Abstract

Two non-psychotropic cannabinoids, cannabidiol (CBD) and cannabidiol-dimethylheptyl (CBD-DMH), induced apoptosis in a human acute myeloid leukemia (AML) HL-60 cell line. Apoptosis was determined by staining with bisBenzimide and propidium iodide. A dose dependent increase of apoptosis was noted, reaching 61 and 43% with 8 μg/ml CBD and 15 μg/ml CBD-DMH, respectively, after a 24 h treatment. Prior exposure of the cells to γ-irradiation (800 cGy) markedly enhanced apoptosis, reaching values of 93 and 95%, respectively. Human monocytes from normal individuals were resistant to either cannabinoids or γ-irradiation. Caspase-3 activation was observed after the cannabinoid treatment, and may represent a mechanism for the apoptosis. Our data suggest a possible new approach to treatment of AML.

Keywords

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Order Reprints Request Corporate Permissions

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

Request Academic Permissions

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.

γ-Irradiation Enhances Apoptosis Induced by Cannabidiol, a Non-psychotropic Cannabinoid, in Cultured HL-60 Myeloblastic Leukemia Cells

Information for

Open access

Opportunities

Help and information

γ-Irradiation Enhances Apoptosis Induced by Cannabidiol, a Non-psychotropic Cannabinoid, in Cultured HL-60 Myeloblastic Leukemia Cells

Abstract

Reprints and Corporate Permissions

Academic Permissions

Related research

To cite this article:

Download citation

Information for

Open access

Opportunities

Help and information

Keep up to date

Your download is now in progress and you may close this window

Login or register to access this feature