breast cancer

Vitamin D may hold the key to aggressive breast cancer prevention and treatment

Wednesday, July 24, 2013 by: John Phillip
Tags: vitamin D, breast cancer, prevention

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(NaturalNews) Breast cancer strikes more than one-quarter of a million women in the U.S. each year, taking the lives of nearly 40,000 annually. While age, lifestyle, diet and physical activity all play a significant role in development of the disease, an estimated 15 percent of women fall victim due to genetic susceptibility. Current treatment options include surgery, chemotherapy, radiation therapy, immunotherapy, and vaccine therapy, though extensive research clearly demonstrates that natural compounds, including vitamin D may play an effective role in the prevention and even treatment of breast cancer.

Researchers from Saint Louis University have discovered a molecular pathway that contributes to triple-negative breast cancer, an often deadly and treatment resistant form of cancer that tends to strike younger women. Publishing in The Journal of Cell Biology, scientists identified vitamin D and some protease inhibitors as possible new therapies. Additionally, the study team discovered a set of three biomarkers that can help to identify patients who could benefit from the treatment.

Scientists know that women who are born with BRCA1 gene mutation are at increased risk for developing breast and ovarian cancers within their lifetime and the tumors that arise are frequently the triple-negative type. Genetic expression has been identified as the primary pathway that allows tumor cells to grow unchecked. The study team identified how vitamin D plays a role in turning off this pathway, providing a safe and effective strategy to fight these types of tumors.

Vitamin D alters gene expression to prevent deadly mutations and lower breast cancer risk

The researchers sought to identify specific genes that either express or suppress the production of proteins that ultimately protect or promote the development of cancer cells. Each cell contains an extensive array of mechanisms designed to protect DNA integrity and prevent passing potentially damaging mutations to the next generation of daughter cells. BRCA1 is a well known tumor suppressor gene, as it helps repair DNA double-strand breaks, helping to prevent the initial phase of breast cancer lines. Loss of the BRCA1 gene repair ability greatly increases the risk of developing cancer.

The study team identified a critical DNA repair factor known as 53BP1 that becomes impaired with BRCA1 gene degradation, and determined that treatment of BRCA1-deficient tumor cells with vitamin D restores high levels of 53BP1, which results in increased genomic instability and reduced proliferation. The team determined that treatment with a combination of vitamin D and PARP inhibitors could represent a novel therapeutic strategy for breast cancers with poor prognoses.

Extensive research over the past decade has clearly shown that sub-optimal levels of vitamin D greatly increase the risk of many forms of cancer, as the prohormone unlocks the necessary blueprint to accurate cellular replication and elimination of mutations. This important study is among the first to identify vitamin D as a key to prevention and even treatment in the most resistant cases of triple-negative breast cancer lines. Most women will want to ensure they maintain optimal vitamin D blood levels between 50 and 70 ng/mL (higher for those fighting the disease) for protection against this deadly form of breast cancer.

Sources for this article include:

http://jcb.rupress.org/content/200/2/187
http://www.eurekalert.org/pub_releases/2013-01/slu-vdh012213.php
http://www.sciencedaily.com/releases/2013/01/130122142911.htm

About the author:
John Phillip is a Certified Nutritional Consultant and Health Researcher and Author who writes regularly on the cutting edge use of diet, lifestyle modifications and targeted supplementation to enhance and improve the quality and length of life. John is the author of 'Your Healthy Weight Loss Plan', a comprehensive EBook explaining how to use Diet, Exercise, Mind and Targeted Supplementation to achieve your weight loss goal. Visit My Optimal Health Resource to continue reading the latest health news updates, and to download your copy of 'Your Healthy Weight Loss Plan'.

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