Breast cancer spread accelerates during sleep

While the scientific community believed that breast tumors continuously release metastatic cells, the Swiss scientific team discovered that cancer cells that circulate and later form metastases occur primarily during sleep. ..

This is the main discovery of a study of 30 patients and mouse models published in the Journal Nature, led by researchers at the Ecole Polytechnic Federal (ETH) Zurich, University of Basel Hospital, and University of Basel.

According to the World Health Organization (WHO), breast cancer is one of the most common forms of cancer. Every year, about 2.3 million people worldwide suffer from the disease.

If the doctor detects the cancer in time, the patient usually responds well to the treatment. But if the cancer has already spread, things will be much more difficult, ETH recalls.

Metastasis occurs when circulating cancer cells move away from the original tumor, travel through blood vessels, and form new tumors in other organs.

So far, cancer research has paid less attention to this issue of when tumors release metastatic cells, according to the director of the study.

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