“Alternative targets within the endocannabinoid system for future treatment of gastrointestinal diseases… Many beneficial effects of herbal cannabinoids on gut motility and inflammation have been demonstrated, suggesting a vast potential for these compounds in the treatment of gastrointestinal disorders….endocannabinoid system’ (ECS), a cooperating network of molecules that regulate themetabolism of the body’s own and of exogenously administered cannabinoids. The ECS… offering many potential targets for pharmacological intervention. Of major therapeutic interest are nonpsychoactive cannabinoids that do not directly target cannabinoid receptors but still possess cannabinoid-like properties… promising alternative therapeutic tools to manipulate the ECS.”
Tag Archives: endocannabinoid system
Concomitant consumption of marijuana, alcohol and tobacco in oral squamous cell carcinoma development and progression: Recent advances and challenges
“Carcinogens found in tobacco are also concentrated in marijuana, but the latter also contains high levels of cannabinoids, bioactive compounds responsible for several effects such as euphoria and analgesia. However, Δ(9)-tetrahydrocannabinol (Δ(9)-THC), the major psychotropic cannabinoid found in plants, causes a reduction of cellular metabolism and induction of apoptosis (progarmmed cell death), both of which are anti-neoplastic properties…”
Cannabinoids Induce Apoptosis of Pancreatic Tumor Cells via Endoplasmic Reticulum Stress–Related Genes
“The hemp plant Cannabis sativa produces unique compounds known as cannabinoids, of which Δ9-tetrahydrocannabinol (THC) is the most important… The present study was undertaken to investigate the antitumoral action of cannabinoids in pancreatic cancer and the molecular mechanisms involved in that effect… Cannabinoids induce apoptosis of pancreatic tumor cells via endoplasmic reticulum stress-related genes…These findings may contribute to set the basis for a new therapeutic approach for the treatment of pancreatic cancer.”
Delta9-tetrahydrocannabinol inhibits cell cycle progression in human breast cancer cells through Cdc2 regulation.
Researchers found that Δ9-tetrahydrocannabinol (THC) reduced the growth of multiple human breast cancer cell lines by stopping cells from progressing through the cell cycle and by triggering apoptosis, or programmed cell death. THC blocked the cells at the G2-M stage by reducing Cdc2, a protein needed for cell division, and breast cancer cells engineered to produce more Cdc2 became more resistant to THC.
The study also found that aggressive ER-negative breast cancer cells were particularly sensitive to THC, while normal human mammary epithelial cells were much less affected. THC’s effects were largely associated with CB2 cannabinoid receptors, which were more highly expressed in higher-grade tumors and in ER-negative, PR-negative and HER2-positive breast tumors, while CB2 expression was barely detectable in normal breast tissue.
The researchers concluded that these findings could help form the basis for new cannabinoid-based strategies for managing breast cancer.
“It has been proposed that cannabinoids are involved in the control of cell fate. Thus, these compounds can modulate proliferation, differentiation, and survival in different manners depending on the cell type and its physiopathologic context. However, little is known about the effect of cannabinoids on the cell cycle, the main process controlling cell fate.
Here, we show that Delta(9)-tetrahydrocannabinol (THC), through activation of CB(2) cannabinoid receptors, reduces human breast cancer cell proliferation by blocking the progression of the cell cycle and by inducing apoptosis. In particular, THC arrests cells in G(2)-M via down-regulation of Cdc2, as suggested by the decreased sensitivity to THC acquired by Cdc2-overexpressing cells.
Of interest, the proliferation pattern of normal human mammary epithelial cells was much less affected by THC. We also analyzed by real-time quantitative PCR the expression of CB(1) and CB(2) cannabinoid receptors in a series of human breast tumor and nontumor samples. We found a correlation between CB(2) expression and histologic grade of the tumors. There was also an association between CB(2) expression and other markers of prognostic and predictive value, such as estrogen receptor, progesterone receptor, and ERBB2/HER-2 oncogene. Importantly, no significant CB(2) expression was detected in nontumor breast tissue.
Taken together, these data might set the bases for a cannabinoid therapy for the management of breast cancer.”
https://pubmed.ncbi.nlm.nih.gov/16818634
“Cannabinoid receptors are expressed in human breast tumors.”
“THC inhibits proliferation of human breast cancer cells.“
Need this THC study explained? thcXplained.com
Cannabis-induced cytotoxicity in leukemic cell lines: the role of the cannabinoid receptors and the MAPK pathway
“We therefore investigated the role of the CB-Rs (CannaBinoid-Receptors) in mediating apoptosis in 3 leukemic cell lines… We have shown that THC is a potent inducer of apoptosis… THC-induced cell death…”
http://bloodjournal.hematologylibrary.org/content/105/3/1214.long
Harvard Study: Marijuana Cuts Lung Cancer Tumor Growth In Half
“The active ingredient in marijuana cuts tumor growth in common lung cancer in half and significantly reduces the ability of the cancer to spread, say researchers at Harvard University who tested the chemical in both lab and mouse studies.”
http://www.sciencedaily.com/releases/2007/04/070417193338.htm
Cannabinoids in pancreatic cancer: Correlation with survival and pain
“Cannabinoids exert antiproliferative properties in a variety of malignant tumors, including pancreatic ductal adenocarcinoma … Cannabinoids can induce apoptosis (programmed cell death) in cancer cells…Furthermore, they have been shown to decrease invasiveness of cancer cells.”
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2225529/?tool=pubmed
CANNABINOIDS: POTENTIAL ANTICANCER AGENTS
The study by Manuel Guzmán of Madrid Spain found that cannabinoids, the active components of marijuana, inhibit tumor growth in laboratory animals. They do so by modulating key cell-signalling pathways, thereby inducing direct growth arrest and death of tumor cells, as well as by inhibiting the growth of blood vessels that supply the tumor.
The emerging role of the endocannabinoid system in cardiovascular disease
“… the EndoCannabinoid System has been implicated in a growing number of physiological functions of the nervous system and various peripheral organs, and its modulation turned out to hold tremendous therapeutic promise in a wide range of disparate diseases and pathological conditions, ranging from mood and anxiety disorders, movement disorders, neuropathic pain, multiple sclerosis, and spinal cord injury to cancer, glaucoma, osteoporosis, atherosclerosis, myocardial infarction, stroke, hypertension, and obesity/ metabolic syndrome to name just a few…”
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2791499/?tool=pubmed
The endocannabinoid system in prostate cancer
“Accumulating evidence indicate that the endocannabinoid system is dysregulated in prostate cancer… Overexpression of several components of the endocannabinoid system correlate with prostate cancer grade and progression, potentially providing a new therapeutic target for prostate cancer… several cannabinoids exert antitumoral properties against prostate cancer, reducing xenograft prostate tumor growth, prostate cancer cell proliferation and cell migration… the therapeutic potential of cannabinoids against prostate cancer is very promising…”