Researchers Discover Link Between Obesity Gene and Breast Cancer

New research aimed to better identify the genetic factors that lead to breast cancer has uncovered a link between the fat mass and obesity associated gene (FTO) and a higher incidence of breast cancer.  According to the study conducted at Northwestern Memorial Hospital, people who possess a variant of the FTO gene have up to a 30 percent greater chance of developing breast cancer.  Research to identify why the link exists is ongoing, but experts say the finding takes us one step closer to personalized medicine based on genetic risk which would allow for better monitoring and prevention of illness, as well as targeted treatment.  

“This is a fascinating early finding, which fits with the known connections between obesity and breast cancer,” said Virginia Kaklamani, MD, oncologist at Northwestern Memorial, co-director of the Cancer Genetics Program at the Robert H. Lurie Comprehensive Cancer Center of Northwestern University and lead author of the study. 

Each individual carries the FTO gene, but only 18 percent have this variant of the gene.  Kaklamani, who specializes in cancer genetics, says testing for the FTO variant is not available currently, but it may be available in the future, similar to how genetic testing for the BRCA gene mutation exists today.  

“Ten years ago we didn’t know about the BRCA gene mutation which has been linked to breast and ovarian cancer.  Today, we offer genetic testing and a specialized clinic for those at risk in order to minimize their risk and detect any indication of cancer early,” said Kaklamani, who is also an associate professor of medicine at Northwestern University Feinberg School of Medicine.  “This knowledge helps us better identify who is at an increased risk so one day, we can counter that risk through preventative measures and advanced screening.” 

The research, published in BMC Medical Genetics is part of an ongoing group of studies to further knowledge of genetic risk factors for breast cancer.  For more information about the study, visit this link.    

To learn more about the cancer genetics program at Northwestern click here or call 312-926-0779.   

About Northwestern Memorial HealthCare

Northwestern Memorial HealthCare is the parent corporation of Chicago’s Northwestern Memorial Hospital, an 854-bed academic medical center hospital and Northwestern Lake Forest Hospital, a 205-bed community hospital located in Lake Forest, Illinois. 

About Northwestern Memorial Hospital

Northwestern Memorial is one of the country’s premier academic medical center hospitals and is the primary teaching hospital of the Northwestern University Feinberg School of Medicine.  Along with its Prentice Women’s Hospital and Stone Institute of Psychiatry, the hospital comprises 854 beds, 1,603 affiliated physicians and 7,144 employees.  Northwestern Memorial is recognized for providing exemplary patient care and state-of-the art advancements in the areas of cardiovascular care; women’s health; oncology; neurology and neurosurgery; solid organ and soft tissue transplants and orthopaedics.

Northwestern Memorial possesses nursing Magnet Status, the nation’s highest recognition for patient care and nursing excellence.  It is also listed in 12 clinical specialties in U.S. News & World Report’s 2010 “America’s Best Hospitals” guide and ranks No. 1 in Chicago in the 2010 U.S. News & World Report Best Hospitals metro area rankings. For 10 years running, Northwestern Memorial has been rated among the “100 Best Companies for Working Mothers” guide by Working Mother magazine. The hospital is a recipient of the prestigious National Quality Health Care Award and has been chosen by Chicagoans as the Consumer Choice according to the National Research Corporation’s annual survey for 11 years.