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providenceA first ever study conducted on microbiome, a community of organisms found in human breast ductal fluid, can open doors to breast cancer development.

The study on these microbes shows differences between the bacteria found in women who have experienced breast cancer and the bacteria present in those who have not.

Published in the online journal Scientific Reports on June 21, the study was conducted by a multi-institutional team led by Susan Love, M.D., M.B.A., chief visionary officer of Dr. Susan Love Research Foundation; Delphine Lee, M.D., Ph.D., director of the Department of Translational Immunology and of the Dirks/Dougherty Lab for Cancer Research of Providence Saint John’s Health Center’s John Wayne Cancer Institute; and Parag Vaishampayan, Ph.D., a scientist at NASA’s Jet Propulsion Laboratory.

Prior to this study, researchers have documented the existence of bacteria in the breast tissue. However, this collaboration marks the first exploration of a link between the breast ductal fluid microbiome and breast cancer.

“We don’t yet know nearly enough about healthy and cancerous breasts – neither the microbial landscape nor the anatomy of the breast duct system,” Love said. “Yet, all breast cancer begins in the ducts, so clearly exploration is critical to discovering what causes breast cancer and how we can eradicate the disease.”

The research team found that the microbiome in breast ductal fluid differed significantly between two groups, 23 healthy women and 25 women who had a history of breast cancer. Fluid was obtained through suction on the nipple and analyzed via next generation genomic sequencing.

The research findings set the stage for further study on the role microbes may play in causing or preventing breast cancer. They are in line with recent research studies that suggest microbes contribute to 16 percent or more of malignancies worldwide.

“We have known for decades that our immune cells and the cells that line our organs’ surfaces can react to microbial components,” Lee said. “These responses can trigger inflammation and immune responses, suggesting that this interaction might help the immune system monitor breast tissue for cancer, or that certain microbes could contribute to increased inflammation that leads to cancer development. There is still so much to explore.”

Drawing on its expertise in genomic sequencing, the Jet Propulsion Laboratory team employed a cutting-edge data analysis technique to identify the bacteria existing in the breast ductal fluid. Used primarily to characterize the microbial ecology related to outbound spacecraft in an effort to protect other worlds, this analytical methodology is proving useful in disciplines other than astrobiology.

“Collaboration between medical researchers and experts in bioinformatics and other disciplines will continue to propel groundbreaking discoveries,” said Vaishampayan.

“This publication represents a success for JPL’s Medical Engineering Forum Initiative, which focuses on applying NASA technology for medical needs here on Earth,” added JPL’s Leon Alkalai, Ph.D., who is spearheading the initiative.

 

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1 Comment

  1. Scvtv, can you please add an image to this, such as a pink ribbon or a microscope or something so that I can pin this to my BC awareness board in Pinterest? I found the information interesting and wanted to save it. Thank you.

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