According to the US researchers, normal cells can take cancer to new sites before the development of the tumor as they lay dormant until the activation of key genes.
The study has been published in the journal ‘Science’ and it gives details about why some breast cancers cause new tumors after the treatment of the disease.
Secondary or metastatic cancers become the cause of a large number of deaths in patients with breast cancer.
Specialists from UK explain that it’s quite important to know more about the spread of the disease.
