Navigation Links
Fox Chase researchers find that fish oil boosts responses to breast cancer drug tamoxifen
Date:4/6/2011

ORLANDO, FL (April 6, 2011) Breast cancer is the second most common cancer among women, with more than 200,000 women diagnosed each year. Being exposed to estrogen over a long period of time is one factor that can increase a woman's risk of developing the disease. One way a woman can combat this risk factor is by taking the breast cancer drug tamoxifen, which interferes with the activity of estrogen. Now, researchers at Fox Chase Cancer Center have found that omega-3 fatty acidsabundant in fishcould be a safe and beneficial booster for tamoxifen therapy.

Jose Russo, MD, director of the Breast Cancer Research Laboratory at Fox Chase, will present the new findings at the AACR 102nd Annual Meeting 2011 on Wednesday, April 6.

To investigate how fish oil intensifies the effects of tamoxifen, Russo, in collaboration with a team led by Andrea Manni, MD, from Pennsylvania State University, induced mammary tumors in rats and then divided the animals into four groups. They fed the groups either a 17 percent fish oil diet, with or without tamoxifen, or a 20 percent corn oil diet, with or without tamoxifen, for eight weeks. They then analyzed gene expression patterns in the tumors. Omega-3 fatty acids produced a greater expression of genes related to cellular specialization, or differentiationa sign of lower cancer severitycompared to corn oil. The combination of fish oil and tamoxifen reduced the expression of genes linked to tumor growth and spreading.

"If a tumor was being treated with tamoxifen, the addition of an omega-3 fatty acid diet seemed to make the tumor, at least at the molecular level, more benign and less aggressive and responsive to tamoxifen," says Russo.

The fish oil diet also boosted the expression of genes related to immune defenses against tumors, more so than did the corn oil diet. But omega-3 fatty acids simultaneously increased the expression of genes that trigger counterproductive immune responses, such as inflammation and allergic reactions, which curtail the ability of cells to fight cancer and can even promote the migration of tumor cells.

More studies are needed to fully understand the effects of fish oil on the immune system, Russo says. Meanwhile, his team is examining whether omega-3 fatty acids can prevent breast cancer in animals and testing the influence of diet on breast cancer risk in women.


'/>"/>

Contact: Diana Quattrone
Diana.Quattrone@fccc.edu
215-728-7784
Fox Chase Cancer Center
Source:Eurekalert

Related medicine news :

1. Fox Chase researchers report that naproxen reduces tumors in a mouse model of colon cancer
2. Fox Chase scientists report interplay between cancer and aging in mice
3. Fox Chase researchers develop a screen for identifying new anticancer drug targets
4. Calorie labeling has no effect on teenagers or parents food purchases
5. Fox Chase researchers uncover new risk factors for brain metastases in breast cancer patients
6. Fox Chase researchers identify risk factors for the spread of breast cancer to lymph nodes
7. Cash is healthier? Credit and debit increase impulsive food purchases
8. CerMedia Completes Purchase of Cell-Pore Principal Assets from NanoDynamics
9. Fox Chase clinical trial tests first of its kind antibody
10. R-Biopharm Group Purchases a Majority Ownership in Trilogy Lab, Expanding US Operations
11. Ivory Homes Plans Ahead for the April 30th Home Buyer Tax Credit Deadline with 100 New Homes Ready for Quick Purchase
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/24/2017)... ... ... The iaedp Foundation, the premier provider of educational programs and training standards ... full spectrum of disordered eating, announced today that the 2017 Symposium set a new ... and several countries converged on the Green Valley Resort in Las Vegas. , ...
(Date:3/24/2017)... Northridge, CA (PRWEB) , ... March 24, 2017 ... ... Dr. Ramin Assili, announce that they are now offering treatments for sleep apnea ... treated at dental offices. Sleep apnea , specifically the obstructive type, is ...
(Date:3/24/2017)... ... March 24, 2017 , ... Empower ... upgrading their training and leads programs. , In February, 2017, Empower Brokerage introduced ... agents, Performance Partners is designed to teach how to maximize their sales efforts, ...
(Date:3/24/2017)... (PRWEB) , ... March 24, 2017 , ... ... collection of inspiring stories about real people of God in congregations across the ... John Miller, a Presbyterian minister ordained in 1964 who has served congregations in ...
(Date:3/23/2017)... Virginia (PRWEB) , ... March 23, 2017 , ... ... public health services to their communities, 16 more public health departments have been ... week’s decisions bring another 4.5 million people into the expanding network of communities ...
Breaking Medicine News(10 mins):
(Date:3/23/2017)... The key factors driving the growth of dialysis ... growth and increasing healthcare expenditure. Some of the noteworthy trends ... ESRD patients, rising demand for home PD treatment and huge ... market is hindered by high treatment costs and stringent regulations. ... Complete ...
(Date:3/23/2017)... BARBARA, Calif. and INDIANAPOLIS ... (NYSE: LLY ) and the William Sansum ... the lives of Latino people affected by diabetes through ... tremendous burden of diabetes and cardiovascular disease bears a ... United States ," said David Kerr , ...
(Date:3/23/2017)... , March 23, 2017   BioSpace , ... resource, has partnered with Indiana Biosciences Research Institute ... organizations and educational institutions to bring the state,s ... first-ever BioIndiana Hotbed map, an artistic representation of the ... was presented to Vice President Mike Pence , ...
Breaking Medicine Technology: