Breast tissue has its own set of bacteria. How does this influence breast cancer?

Medical Celia Hoffman
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You’ve probably already heard that each person has a unique set of bacteria living in the gut and this micro biome relates to eating in hurry, chronic fatigue and the ability to control appetite and weight.

But one thing we know is that no bacteria are found in the breast tissue of women, and new research has concluded that they can have a role in preventing breast cancer. It is believed that this type of cancer is hereditary on a scale of only 5% to 10%, which means that there may be multiple reasons for this, such as age, weight or previous treatments for the treatment of cancer.

Beginning in 1960, it was estimated that the birth of babies and feeding them with breast milk decreases the risk of breast cancer, women who were not pregnant by the age of 30 years showing a higher risk.

Researchers have tried to find a biological explanation for this phenomenon and concluded that the bacteria in breast milk can play an important role in protecting the mother against breast cancer.

Although until a few years ago researchers believed that breast tissue is sterile in 2014 was said that it contains bacteria that help maintain health by stimulating the immune cells in its vicinity. For a more detailed investigation, they ushered in a new study to identify what kind of bacteria it is and if there is any difference at this level between women who were diagnosed with breast cancer and those who have never suffered from this disease.

Thus, researchers have been studying bacterial DNA in breast tissue that originated from 58 women who were treated by the lumpectomy or mastectomy method against malignant tumors (45 participants) and benign (13 participants) and compared with those who belonged to 23 women who have never been diagnosed with breast cancer. The conclusion was that for women diagnosed there is a higher level of Enterobacteriaceae, staphylococci and bacilli that have a role in developing a particular type of DNA related to cancer.

Gregor Raid, one of the participants in this project, said that ‘microbes in breast tissue, even if there are in small amounts, can play an important role in the development of breast cancer in some cases increasing the risk and in others bringing it down.’ Moreover, researchers believe that if the following studies will clearly identify which bacteria increase or decrease the risk of diagnosis may administer post probiotics to ensure that breast tissue contains more bacteria that prevents cancer.