A patient asks me whether EBV might also be involved in her breast cancer.
I tell her my suspicion that HPV (the wart virus), in particular, could play a significant role here because it inactivates p53 (the cell’s police gene), which ensures that “degenerating cells” eliminate themselves (apoptosis).
As I say this, I think to myself that it’s possible that EBV, as HIV’s little brother, could play a role through immune dysregulation.
Then I think to myself, why waste so much time discussing this? We can quickly research it. A few minutes later, I’m totally astonished because, based on the studies, it actually appears that EBV does indeed infect breast cancer tissue, transforming it into a premalignant tissue, and can significantly influence the onset and overall course of breast cancer.
This makes EBV a possible target for holistic, adjunctive treatment for breast cancer.
Study searches on EBV x breast cancer = 120,000 entries on Scholar
1. Epstein-Barr virus in breast carcinomas and in triple-negative cases
This study demonstrated the presence of EBV DNA in breast carcinomas and found that EBV was associated with aggressive features and poorer overall survival.
2. Epstein-Barr Virus Infection of Breast Epithelial Cells Promotes Tumor Formation
Research shows that EBV infections can promote tumor formation in breast epithelial cells, but not in breast cancer cells. Study 2016 | fullTextPDF
3. Role of Epstein-Barr Virus in Breast Cancer: Correlation with Clinical Features
This study found that EBV was correlated with HER-2 status and histological grade in breast cancer samples. Study 2024
4. Epstein-Barr Virus Infection and Increased Risk of Sporadic Breast Cancer
An analysis of 16 studies with 1,279 patients showed that EBV infections were associated with an increased risk of sporadic breast cancer.
5. Detection of Epstein-Barr Virus in Invasive Breast Cancer Cases
This study documented the Detection of the EBV genome in a large number of breast cancer cases and found that the virus was restricted to tumor cells. 1999 study
These studies indicate a possible link between EBV and breast cancer, although the exact role of the virus in carcinogenesis has not been clarified, but I haven’t had the time to do so. Perhaps one of our valued readers can do this?
Cover image
The Epstein-Barr virus, shown here in leukemia cells stained green (c) CDC/Dr. Paul M. Feorino
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