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                      Does Melatonin Suppress Breast Cancer?

                      Published by Life Extension

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                      An article published in the May 2016 issue of Genes and Cancer describes how melatonin, a hormone that facilitates sleep, suppresses breast cancer growth.

                      “Cancer stem cells pose a challenge in cancer treatment, as these cells can drive tumor growth and are resistant to chemotherapy,” write Juliana Lopes and colleagues in their introduction. “Melatonin exerts its oncostatic effects through the estrogen receptor (ER) pathway in cancer cells, however its action in cancer stem cells is unclear.”

                      “From studies of cancer stem cells, the transcription factor OCT4, encoded by the POU5F1 gene, was found to be a critical factor for self-renewal and maintenance of pluripotency of stem cells,” they note. “Based on the idea that breast cancer treatment is particularly complicated by cancer stem cells, and that the control of the disease requires the inhibition of these cells, the objective of this study was to evaluate the effect of melatonin on regulation of the OCT4/POU5F1 by the ER-alpha in breast cancer stem cells after induction with tumor initiation chemical BPA and with estrogen.”

                      The team created three dimensional tumors known as mammospheres from breast cancer stem cells for their research. The growth of these tumors was enhanced by the administration of estrogen or Bisphenol A (BPA), a chemical used in food packaging. Following administration of melatonin, mammospheres significantly decreased in size and number in comparison with controls that did not receive the hormone.  The researchers also observed a decrease in ER-alpha binding to OCT4 and a reduction of OCT4 and ER-alpha expression.

                      “This work establishes the principal by which cancer stem cell growth may be regulated by natural hormones, and provides an important new technique to screen chemicals for cancer-promoting effects, as well as identify potential new drugs for use in the clinic,” coauthor James E. Trosko concluded.

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                      Life Extension
                      Life Extension
                      LIFE EXTENSION The Life Extension Health News team delivers accurate information about vitamins, nutrition and aging. Our stories rely on multiple, authoritative sources and experts. We keep our content accurate and trustworthy, by submitting it to a medical reviewer. Life Extensionists are people who believe in taking advantage of documented scientific therapies to help maintain optimal health and slow aging. The medical literature contains thousands of references on the use of antioxidant vitamins, weight loss supplements, and hormones that have been shown to improve the quality and quantity of life. Life Extensionists attempt to take advantage of this scientific information to enhance their changes of living longer in good health. This article is posted by permission of Life Extension. https://www.lifeextension.com/

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                      This website is for informational and entertainment purposes only and is not a substitute for medical advice, diagnosis or treatment. FoodTrients – A Recipe for Aging Beautifully Grace O, author and creator of FoodTrients® -- a philosophy, a cookbook and a resource -- has a new cookbook dedicated to age-defying and delicious recipes, The Age Beautifully Cookbook: Easy and Exotic Longevity Secrets from Around the World, which provides one hundred-plus recipes that promote health and well-being. The recipes are built on foundations of modern scientific research and ancient knowledge of medicinal herbs and natural ingredients from around the world. Since the publication of her first anti-aging book, The Age GRACEfully Cookbook, Grace O has identified eight categories of FoodTrients benefits (Anti-inflammatory, Antioxidant, Immune Booster, Disease Prevention, Beauty, Strength, Mind, and Weight Loss) that are essential to fighting aging, which show how specific foods, herbs, and spices in the recipes help keep skin looking younger, prevent the diseases of aging, and increase energy and vitality. Grace O combines more exotic ingredients that add age-fighting benefits to familiar recipe favorites.

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