Flu, COVID may 'wake up' dormant cancer cells, new study finds
UNITED STATES, JUL 30 – Breast cancer survivors face a 44% to nearly twofold increased risk of lung metastases after respiratory infections due to inflammation-driven reactivation of dormant cancer cells, researchers found.
- Respiratory infections like COVID-19 and the flu may reactivate dormant breast cancer cells, increasing the risk of spreading in patients with a history of the disease.
- Patients who tested positive for SARS-CoV-2 had a twofold increase in cancer-related deaths compared to those who were negative.
- Patients with breast cancer who contracted COVID-19 were almost 50% more likely to experience metastatic progression to the lungs than those without a diagnosis of COVID-19.
- The findings indicate that cancer survivors may face increased risks of metastatic relapse after respiratory viral infections.
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A study shows that viral infections such as Covid or the flu could play a role. However, there is criticism of the study. By V. Simon.[more]]>


Coronavirus and influenza infections may play a role in cancer recurrence in previously recovered patients. The viruses appear to be able to reactivate "dormant" breast cancer cells that have ended up in the lungs, at least in mice, international researchers report in Nature.
Flu and Corona can wake up sleeping cancer cells - this is shown by a recently published US study in mice. Even years after an survived cancer, the tumor cells can wake up again.
Common Viruses May Wake Dormant Breast Cancer Cells, Study Finds
Breast cancer patients who have been in remission for years or even decades may still need to be cautious about respiratory infections. Some common viruses may re-awaken a very small number of dormant breast cancer cells within our lungs, according to emerging research. "Dormant cancer cells are like the embers left in an abandoned campfire, and respiratory viruses are like a strong wind that reignites the flames," argues molecular geneticist Ja…
Respiratory viruses, such as the flu virus or SARs-CoV-2, can trigger latent breast cancer cells that have spread to the lungs, which prepares the ground for...
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