Skip to main content

Gum Disease Bacteria Linked to Breast Cancer Growth

Published on June 23, 2026, 6:07 p.m.
Gum Disease Bacteria Linked to Breast Cancer Growth

Topic: Health

Scientists found a surprising connection between gum disease and breast cancer. A type of bacteria that causes gum disease can enter the bloodstream and settle in breast tissue, leading to inflammation and changes that can lead to cancer.

In a recent study, scientists at Johns Hopkins Kimmel Cancer Center and Bloomberg~Kimmel Institute for Cancer Immunotherapy discovered a link between oral health and breast cancer. They found that a bacterium commonly associated with gum disease, Fusobacterium nucleatum, can help initiate breast cancer, accelerate tumor growth, and promote its spread.

The researchers introduced this bacterium into mouse models of human breast cancer and observed how it affected tissue. When the bacterium was present, it caused noncancerous changes in cells, accompanied by inflammation, DNA damage, and increased cell proliferation. The team also found that when the bacterium entered the bloodstream, it significantly boosted the growth and spread of existing tumors.

The study showed that certain cells, such as epithelial cells and breast cancer cells carrying BRCA1 mutations, were more susceptible to the effects of this bacterium. These cells had elevated levels of a surface sugar that helps bacteria attach and enter cells, making them more prone to DNA damage and cancer-promoting effects.

The researchers emphasize that more work is needed to understand how these findings translate to patient care. However, their study suggests that maintaining good oral health could play a role in reducing breast cancer risk.

Why It Matters

This research highlights the importance of taking care of your oral health and its potential impact on your overall well-being. As Indian students, it's essential to prioritize your health and take proactive steps to prevent diseases like breast cancer.

Key Facts

  • A type of bacteria commonly associated with gum disease can enter the bloodstream and settle in breast tissue, leading to inflammation and changes that can lead to cancer.
  • The bacterium, Fusobacterium nucleatum, can help initiate breast cancer, accelerate tumor growth, and promote its spread.
  • Certain cells, such as epithelial cells and breast cancer cells carrying BRCA1 mutations, are more susceptible to the effects of this bacterium.
  • Maintaining good oral health could play a role in reducing breast cancer risk.

Key Terms

Fusobacterium nucleatum
A type of bacteria commonly associated with gum disease

Implications

This research highlights the importance of taking care of your oral health and its potential impact on your overall well-being. As Indian students, it's essential to prioritize your health and take proactive steps to prevent diseases like breast cancer.


Source: https://www.sciencedaily.com/releases/2026/03/260319044719.htm

Journal Reference:

  1. Sheetal Parida, Deeptashree Nandi, Deepak Verma, Mingyang Yi, Ashutosh Yende, Jessica Queen, Kathleen L. Gabrielson, Cynthia L. Sears, Dipali Sharma. A pro-carcinogenic oral microbe internalized by breast cancer cells promotes mammary tumorigenesis. Cell Communication and Signaling, 2026; DOI: 10.1186/s12964-025-02635-9

Leave a Comment

Name
Email
Body
... ...

Get Exclusive Insights

with Every Issue

JoinShalyamNewsletter

Stay ahead in education, research, and innovation—straight to your inbox.