Natural Killer (NK) cells are lymphocytes that were first noticed for their ability to kill cancer cells without any priming by antigen presenting cells and in absence of prior activation—for this reason, they were dubbed “natural”. They derive from a common progenitor shared with B and T cells. However, NK cells are classified as group […]
Tuberculosis, a preventable and curable disease, ranks alongside HIV infection/AIDS as a leading cause of death worldwide. Indeed, new data from the World Health Organization reveal that the global tuberculosis burden is higher than previously estimated. The risk of developing tuberculosis is between 26 and 31 times greater in people living with HIV than among […]
Cancer can spread from where it started (the primary site) to other areas of the body, forming metastasis. But how do cancer cells spread from the primary site to other areas of the body? When cancer cells break away from a tumor, they travel through either the bloodstream or the lymph system to reach other […]