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Triple-negative breast cancer is a unique form of breast cancer lacking in typical receptors found on these breast cells. Specifically missing are the receptors for Estrogen, Progesterone, and Human Epidermal Growth Factor (HER2) (hence the name “Triple-negative”)1.
In several forms of breast cancer, it is one or more of these factors driving tumor growth. However, if the cells within the tumor are growing beyond control irrelevant to these factors, treatment becomes a much trickier proposition. Unfortunately, this form of breast cancer now represents 15-20% of the cases with a 5-year survival rate below 15% for metastasized cases2.
Therefore, it is imperative that we understand the mechanisms which allow for this tumor progression and how we can wisely combat it with the latest in the field of cancer immunotherapy.
Fortunately, recent studies published in the New England Journal of Medicine displaying some encouraging results with checkpoint immunotherapy for triple-negative breast cancer.
Compared to placebo, immune activation before operations allowed for increased clearance of tumor cells at the time of surgery (by about 14%) without much alteration in side effect profile3, and median survival seemed to be extended4. Now, this does not speak to long-term results or indicate a “cure” has been found, but rather excites us that the immune system is capable of identifying and attacking these seemingly invisible cancer cells.
Of course, while immune checkpoint inhibitors have been effective at “boosting” the immune system and providing some benefit, they are not ideal for engendering a truly targeted, robust, and memorable immune response.
For those, we ideally need to channel into the normal physiological pathways the immune system operates and go from the ‘top-down.’ By this, we mean the Dendritic Cells (the immune system “generals”) down to the killer T cells (the immune system “soldiers”).
As research has continued, there have been reports in which Dendritic Cells have effectively been used to launch a triple-negative breast cancer immune response5,6, even with recent evidence of some levels of success in early patients7,8.
In fact, so important are Dendritic Cells to the potential overcoming of triple-negative breast cancer, some therapies are more focused on simply trying to get more functional Dendritic Cells into the area of the cancer in the first place9. And of course, it is critically important to utilize the right kind of Dendritic Cells as well10.
If you or someone you know has been hit with a diagnosis of triple-negative breast cancer, please let us know. Immunocine may be able to help as we have seen success in treating triple-negative breast cancer.
Not only has science come a long way in the past 20 years, but the Immunocine scientific teams have in-house experience of over a decade of research into our unique Dendritic Cell Therapy and triple-negative breast cancer cases and studies.