Researchers find common immune system mechanism between pregnancy, cancer
To understand why some cancers successfully circumvent the immune system to grow unchecked, researchers turned to pregnancy. “In pregnancy, the immune system does not reject the growing fetus, so we know there must be mechanisms active in the placenta. In cancer, it’s the same thing: the growing tumor is not rejected by the immune system. It means the cancer cells have developed strategies to suppress immune rejection, same as in pregnancy,” said Weiping Zou, M.D., Ph.D., professor of experimental pathology.