According to a new study, gene variations may help predict risk of breast cancer in women.
The study, led by Virginia Kaklamani, MD, an oncologist at Northwestern Memorial Hospital and assistant professor of medicine, Northwestern University Feinberg School of Medicine, found that variations of the adiponectin gene, which regulates a number of metabolic processes, may increase a woman's risk of developing breast cancer.
AdvertisementThis discovery is an important step forward in cancer genetics research, as it could help experts develop a future genetic testing model to more accurately predict a woman's risk of developing breast cancer.
Dr. Kaklamani's research, which is published in the May 1 issue of Cancer Research, suggests some women are born with different characteristics in the adiponectin gene, which can alter its function and increase the risk of breast cancer.
This finding, coupled with previous studies that have found a correlation between low levels of adiponectin in the body and cancer risk, suggest adiponectin may be the third gene linked to breast cancer among women with no previous family history of breast cancer.
If confirmed through additional studies, adiponectin could be used along with TGF-beta and CHEK2, genes that have already been linked to breast cancer, to create a genetic testing model that will allow clinicians to more accurately predict breast cancer risk.
"All we know is that one in eight women will get breast cancer somehow, for some reason. One explanation for this is genetic background, and the adiponectin gene is one that may be responsible. By pinpointing which genes are associated with breast cancer risk, we can better predict risk, and ultimately may be able to enhance efforts for breast cancer prevention," said Kaklamani.
Genetic testing is already being used among women with a strong family history of breast cancer to determine if the BRCA genes are present, which have been linked to hereditary breast cancer. However, the vast majority of women diagnosed with breast cancer each year do not have familial breast cancer, leaving a large number of breast cancers unexplained.
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