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Cannabis for breast cancer

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https://www.readbyqxmd.com/read/29940172/appraising-the-entourage-effect-antitumor-action-of-a-pure-cannabinoid-versus-a-botanical-drug-preparation-in-preclinical-models-of-breast-cancer
#1
Sandra Blasco-Benito, Marta Seijo-Vila, Miriam Caro-Villalobos, Isabel Tundidor, Clara Andradas, Elena García-Taboada, Jeff Wade, Stewart Smith, Manuel Guzmán, Eduardo Pérez-Gómez, Mara Gordon, Cristina Sánchez
Breast cancer is the second leading cause of death among women. Although early diagnosis and development of new treatments have improved their prognosis, many patients present innate or acquired resistance to current therapies. New therapeutic approaches are therefore warranted for the management of this disease. Extensive preclinical research has demonstrated that cannabinoids, the active ingredients of Cannabis sativa, trigger antitumor responses in different models of cancer. Most of these studies have been conducted with pure compounds, mainly Δ9 -tetrahydrocannabinol (THC)...
June 27, 2018: Biochemical Pharmacology
https://www.readbyqxmd.com/read/29482741/prospective-analysis-of-safety-and-efficacy-of-medical-cannabis-in-large-unselected-population-of-patients-with-cancer
#2
Lihi Bar-Lev Schleider, Raphael Mechoulam, Violeta Lederman, Mario Hilou, Ori Lencovsky, Oded Betzalel, Liat Shbiro, Victor Novack
BACKGROUND: Cancer is a major public health problem as the leading cause of death. Palliative treatment aimed to alleviate pain and nausea in patients with advanced disease is a cornerstone of oncology. In 2007, the Israeli Ministry of Health began providing approvals for medical cannabis for the palliation of cancer symptoms. The aim of this study is to characterize the epidemiology of cancer patients receiving medical cannabis treatment and describe the safety and efficacy of this therapy...
March 2018: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/27530354/cannabidiolic-acid-mediated-selective-down-regulation-of-c-fos-in-highly-aggressive-breast-cancer-mda-mb-231-cells-possible-involvement-of-its-down-regulation-in-the-abrogation-of-aggressiveness
#3
Shuso Takeda, Taichi Himeno, Kazuhiro Kakizoe, Hiroyuki Okazaki, Tomoko Okada, Kazuhito Watanabe, Hironori Aramaki
The physiological activities of cannabidiolic acid (CBDA), a component of fiber-type cannabis plants, have been demonstrated and include its function as a protector against external invasion by inducing cannabinoid-mediated necrosis (Shoyama et al., Plant Signal Behav 3:1111-1112, 2008). The biological activities of CBDA have been attracting increasing attention. We previously identified CBDA as an inhibitor of the migration of MDA-MB-231 cells, a widely used human breast cancer cell line in cancer biology, due to its highly aggressive nature...
January 2017: Journal of Natural Medicines
https://www.readbyqxmd.com/read/25916739/the-antitumor-activity-of-plant-derived-non-psychoactive-cannabinoids
#4
REVIEW
Sean D McAllister, Liliana Soroceanu, Pierre-Yves Desprez
As a therapeutic agent, most people are familiar with the palliative effects of the primary psychoactive constituent of Cannabis sativa (CS), Δ(9)-tetrahydrocannabinol (THC), a molecule active at both the cannabinoid 1 (CB1) and cannabinoid 2 (CB2) receptor subtypes. Through the activation primarily of CB1 receptors in the central nervous system, THC can reduce nausea, emesis and pain in cancer patients undergoing chemotherapy. During the last decade, however, several studies have now shown that CB1 and CB2 receptor agonists can act as direct antitumor agents in a variety of aggressive cancers...
June 2015: Journal of Neuroimmune Pharmacology: the Official Journal of the Society on NeuroImmune Pharmacology
https://www.readbyqxmd.com/read/25242400/down-regulation-of-cyclooxygenase-2-cox-2-by-cannabidiolic-acid-in-human-breast-cancer-cells
#5
Shuso Takeda, Hiroyuki Okazaki, Eriko Ikeda, Satomi Abe, Yasushi Yoshioka, Kazuhito Watanabe, Hironori Aramaki
Metastases are known to be responsible for approximately 90% of breast cancer-related deaths. Cyclooxygenase-2 (COX-2) is involved not only in inflammatory processes, but also in the metastasis of cancer cells; it is expressed in 40% of human invasive breast cancers. To comprehensively analyze the effects of cannabidiolic acid (CBDA), a selective COX-2 inhibitor found in the fiber-type cannabis plant (Takeda et al., 2008), on COX-2 expression and the genes involved in metastasis, we performed a DNA microarray analysis of human breast cancer MDA-MB-231 cells, which are invasive breast cancer cells that express high levels of COX-2, treated with CBDA for 48 hr at 25 µM...
2014: Journal of Toxicological Sciences
https://www.readbyqxmd.com/read/24088353/-medicinal-chemistry-and-pharmacology-focused-on-cannabidiol-a-major-component-of-the-fiber-type-cannabis
#6
REVIEW
Shuso Takeda
Considerable attention has focused on cannabidiol (CBD), a major non-psychotropic constituent of fiber-type cannabis plant, and it has been reported to possess diverse biological activities. Although CBD is obtained from non-enzymatic decarboxylation of its parent molecule, cannabidiolic acid (CBDA), several studies have investigated whether CBDA itself is biologically active. In the present report, the author summarizes findings indicating that; 1) CBDA is a selective cyclooxygenase-2 (COX-2) inhibitor, and ii) CBDA possesses an anti-migrative potential for highly invasive cancer cells, apparently through a mechanism involving inhibition of cAMP-dependent protein kinase A, coupled with an activation of the small GTPase, RhoA...
2013: Yakugaku Zasshi: Journal of the Pharmaceutical Society of Japan
https://www.readbyqxmd.com/read/24039449/critical-appraisal-of-the-potential-use-of-cannabinoids-in-cancer-management
#7
REVIEW
Belinda J Cridge, Rhonda J Rosengren
Cannabinoids have been attracting a great deal of interest as potential anticancer agents. Originally derived from the plant Cannabis sativa, there are now a number of endo-, phyto- and synthetic cannabinoids available. This review summarizes the key literature to date around the actions, antitumor activity, and mechanisms of action for this broad range of compounds. Cannabinoids are largely defined by an ability to activate the cannabinoid receptors - CB1 or CB2. The action of the cannabinoids is very dependent on the exact ligand tested, the dose, and the duration of exposure...
2013: Cancer Management and Research
https://www.readbyqxmd.com/read/23933222/cannabidiol-enhances-xenobiotic-permeability-through-the-human-placental-barrier-by-direct-inhibition-of-breast-cancer-resistance-protein-an-ex-vivo-study
#8
COMPARATIVE STUDY
Valeria Feinshtein, Offer Erez, Zvi Ben-Zvi, Tamar Eshkoli, Boaz Sheizaf, Eyal Sheiner, Gershon Holcberg
OBJECTIVE: Drugs of abuse affect pregnancy outcomes, however, the mechanisms in which cannabis exerts its effects are not well understood. The aim of this study was to examine the influence of short-term (1-2 hours) exposure to cannabidiol, a major phytocannabinoid, on human placental breast cancer resistance protein function. STUDY DESIGN: The in vitro effect of short-term exposure to cannabidoil on breast cancer resistance protein in BeWo and Jar cells (MCF7/P-gp cells were used for comparison) was tested with mitoxantrone uptake, and nicardipine was used as positive control...
December 2013: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/23425133/clinical-decisions-medicinal-use-of-marijuana
#9
J Michael Bostwick, Gary M Reisfield, Robert L DuPont
Case Vignette. Marilyn is a 68-year-old woman with breast cancer metastatic to the lungs and the thoracic and lumbar spine. She is currently undergoing chemotherapy with doxorubicin. She reports having very low energy, minimal appetite, and substantial pain in her thoracic and lumbar spine. For..
February 28, 2013: New England Journal of Medicine
https://www.readbyqxmd.com/read/22963825/cannabidiolic-acid-a-major-cannabinoid-in-fiber-type-cannabis-is-an-inhibitor-of-mda-mb-231-breast-cancer-cell-migration
#10
Shuso Takeda, Shunsuke Okajima, Hiroko Miyoshi, Kazutaka Yoshida, Yoshiko Okamoto, Tomoko Okada, Toshiaki Amamoto, Kazuhito Watanabe, Curtis J Omiecinski, Hironori Aramaki
Cannabidiol (CBD), a major non-psychotropic constituent of fiber-type cannabis plant, has been reported to possess diverse biological activities, including anti-proliferative effect on cancer cells. Although CBD is obtained from non-enzymatic decarboxylation of its parent molecule, cannabidiolic acid (CBDA), few studies have investigated whether CBDA itself is biologically active. Results of the current investigation revealed that CBDA inhibits migration of the highly invasive MDA-MB-231 human breast cancer cells, apparently through a mechanism involving inhibition of cAMP-dependent protein kinase A, coupled with an activation of the small GTPase, RhoA...
November 15, 2012: Toxicology Letters
https://www.readbyqxmd.com/read/22776349/cannabinoids-a-new-hope-for-breast-cancer-therapy
#11
REVIEW
María M Caffarel, Clara Andradas, Eduardo Pérez-Gómez, Manuel Guzmán, Cristina Sánchez
Breast cancer is a very common disease that affects approximately 1 in 10 women at some point in their lives. Importantly, breast cancer cannot be considered a single disease as it is characterized by distinct pathological and molecular subtypes that are treated with different therapies and have diverse clinical outcomes. Although some highly successful treatments have been developed, certain breast tumors are resistant to conventional therapies and a considerable number of them relapse. Therefore, new strategies are urgently needed, and the challenge for the future will most likely be the development of individualized therapies that specifically target each patient's tumor...
November 2012: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/22536451/enhanced-brain-disposition-and-effects-of-%C3%AE-9-tetrahydrocannabinol-in-p-glycoprotein-and-breast-cancer-resistance-protein-knockout-mice
#12
Adena S Spiro, Alexander Wong, Aurélie A Boucher, Jonathon C Arnold
The ABC transporters P-glycoprotein (P-gp, Abcb1) and breast cancer resistance protein (Bcrp, Abcg2) regulate the CNS disposition of many drugs. The main psychoactive constituent of cannabis Δ(9)-tetrahydrocannabinol (THC) has affinity for P-gp and Bcrp, however it is unknown whether these transporters modulate the brain accumulation of THC and its functional effects on the CNS. Here we aim to show that mice devoid of Abcb1 and Abcg2 retain higher brain THC levels and are more sensitive to cannabinoid-induced hypothermia than wild-type (WT) mice...
2012: PloS One
https://www.readbyqxmd.com/read/21410463/the-endocannabinoid-system-and-cancer-therapeutic-implication
#13
REVIEW
Josée Guindon, Andrea G Hohmann
The endocannabinoid system is implicated in a variety of physiological and pathological conditions (inflammation, immunomodulation, analgesia, cancer and others). The main active ingredient of cannabis, Δ(9) -tetrahydrocannabinol (Δ(9) -THC), produces its effects through activation of CB(1) and CB(2) receptors. CB(1) receptors are expressed at high levels in the central nervous system (CNS), whereas CB(2) receptors are concentrated predominantly, although not exclusively, in cells of the immune system. Endocannabinoids are endogenous lipid-signalling molecules that are generated in the cell membrane from phospholipid precursors...
August 2011: British Journal of Pharmacology
https://www.readbyqxmd.com/read/19428940/modulation-of-delta9-tetrahydrocannabinol-induced-mcf-7-breast-cancer-cell-growth-by-cyclooxygenase-and-aromatase
#14
Shuso Takeda, Ikuo Yamamoto, Kazuhito Watanabe
Delta(9)-Tetrahydrocannabinol (Delta(9)-THC), a major constituent of marijuana, has been shown to stimulate the growth of MCF-7 breast cancer cells through cannabinoid receptor-independent signaling [Takeda, S., Yamaori, S., Motoya, E., Matsunaga, T., Kimura, T., Yamamoto, I., Watanabe, K., 2008. Delta(9)-Tetrahydrocannabinol enhances MCF-7 cell proliferation via cannabinoid receptor-independent signaling. Toxicology 245, 141-146]. Although the growth of MCF-7 cells is known to be stimulated by 17beta-estradiol (E(2)), the interaction of Delta(9)-THC and E(2) in MCF-7 cell growth is not fully clarified so far...
May 2, 2009: Toxicology
https://www.readbyqxmd.com/read/19371773/flavonoid-induced-autophagy-in-hormone-sensitive-breast-cancer-cells
#15
Elisa Brunelli, Giulia Pinton, Paolo Bellini, Alberto Minassi, Giovanni Appendino, Laura Moro
The activity of 8-prenylapigenin (8-PA) and its 3'-methoxylated analogue isocannflavin B (IsoB) was investigated in estrogen-dependent T47-D and estrogen-independent MDA-MB-231 human breast cancer cell lines. 8-PA showed a biphasic effect on T47-D cell proliferation, while no significant effect was observed on MDA-MB-231 cells. Conversely, IsoB exhibited only an inhibitory effect on T47-D cell proliferation, accompanied by the appearance of an intense intracytoplasmic vacuolization of autophagic origin. Moreover, biochemical analysis showed that IsoB reduced Akt phosphorylation and p21(Cip1) expression in T47-D cells...
September 2009: Fitoterapia
https://www.readbyqxmd.com/read/19103657/perceived-priorities-for-prevention-change-between-1996-and-2006-in-a-general-population-survey
#16
Jean-François Etter
BACKGROUND: We assessed change between 1996 and 2006 in the opinions of the general public on priorities for the prevention of health problems. METHODS: Postal questionnaire surveys in 1996 and 2006, in representative samples of the general population of Geneva, Switzerland. Participants indicated, for each of 13 health problems, a priority rating for the spending of prevention resources. RESULTS: There were 742 participants in 1996 (response rate 75%) and 1487 in 2006 (response rate 76%)...
March 2009: Journal of Public Health
https://www.readbyqxmd.com/read/16728591/antitumor-activity-of-plant-cannabinoids-with-emphasis-on-the-effect-of-cannabidiol-on-human-breast-carcinoma
#17
Alessia Ligresti, Aniello Schiano Moriello, Katarzyna Starowicz, Isabel Matias, Simona Pisanti, Luciano De Petrocellis, Chiara Laezza, Giuseppe Portella, Maurizio Bifulco, Vincenzo Di Marzo
Delta(9)-Tetrahydrocannabinol (THC) exhibits antitumor effects on various cancer cell types, but its use in chemotherapy is limited by its psychotropic activity. We investigated the antitumor activities of other plant cannabinoids, i.e., cannabidiol, cannabigerol, cannabichromene, cannabidiol acid and THC acid, and assessed whether there is any advantage in using Cannabis extracts (enriched in either cannabidiol or THC) over pure cannabinoids. Results obtained in a panel of tumor cell lines clearly indicate that, of the five natural compounds tested, cannabidiol is the most potent inhibitor of cancer cell growth (IC(50) between 6...
September 2006: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/16392670/antiestrogenic-effects-of-marijuana-smoke-condensate-and-cannabinoid-compounds
#18
Soo Yeun Lee, Seung Min Oh, Sang Ki Lee, Kyu Hyuck Chung
The antiestrogenic effects of marijuana smoke condensate (MSC) and three major cannabinoids, ie., delta9-tetrahydrocannabinol (THC), cannabidiol (CBD), and cannabinol (CBN), were evaluated using in vitro bioassays, viz., the human breast cancer cell proliferation assay, the recombinant human estrogen receptor (ER) competitive binding assay, and the reporter gene assay. The inhibitory effects on estrogen were also examined using the ethoxyresorufin-O-deethylase (EROD) assay, the aromatase assay, and the 17beta-estradiol (E2) metabolism assay...
December 2005: Archives of Pharmacal Research
https://www.readbyqxmd.com/read/12662229/how-should-gynaecomastia-be-managed
#19
Ian R Daniels, Graham T Layer
BACKGROUND: The purpose of the present paper was to review the management of men referred to a breast clinic with presumed gynaecomastia. METHODS: A retrospective analysis was carried out of 175 men over the age of 16 years who presented with breast enlargement and/or 'lumps', during a 7-year period to a single-surgeon. All patients had complete biochemical assessment (liver function tests, gamma-glutamyl transferase, prolactin, alpha-fetoprotein, beta-human chorionic gonadotropin), and mammography and/or ultrasound with fine-needle biopsy if indicated...
April 2003: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/11269508/control-of-the-cell-survival-death-decision-by-cannabinoids
#20
REVIEW
M Guzmán, C Sánchez, I Galve-Roperh
Cannabinoids, the active components of Cannabis sativa (marijuana), and their derivatives produce a wide spectrum of central and peripheral effects, some of which may have clinical application. The discovery of specific cannabinoid receptors and a family of endogenous ligands of those receptors has attracted much attention to cannabinoids in recent years. One of the most exciting and promising areas of current cannabinoid research is the ability of these compounds to control the cell survival/death decision...
2001: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
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