the new study, published in " science translational medicine "
Martin bergo and his colleagues decided. They fed the antioxidant N-acetylcyateine (NAC) to mice. although the the treated mice that had not been fed the antioxidant, they developed twice as many tumors in their lymph nodes, a hallmark of spread of cancer-a process called metastasis. when the researchers added NAC or a form of vitamin E or cultured human melanoma cells, they confirmed that the antioxidants improved the cells' ability to move and invade a nearby membrane