ნახეთ, ჩვენი იმუნური სისტემა (T უჯრედი) როგორ ანადგურებს კიბოს უჯრედს. გიორგი ფხაკაძე #drpkhakadze

✅ნახეთ, ჩვენი იმუნური სისტემა (T უჯრედი) როგორ ანადგურებს კიბოს უჯრედს. მეცნიერება არის სასწაული. გიორგი ფხაკაძე #drpkhakadze #publichealth #georgia #საქართველო #sience #cell #immunesystem Watch a killer T cell of the immune system destroying a monstrous ovarian cancer cell. Credit: Alex Ritter. White blood cells circulate in the blood and protect the body from deadly pathogens. One important type of white blood cell is called T lymphocyte or T cell. The “T” in T cells stands for “thymus” which is an important organ of the immune system. T cells are like the soldiers of the immune system that seek out and destroy cells that are infected with a pathogen. They can also target cancer cells. T cells identify the pathogen and defected cells via special receptors on their surface. There are millions of different T-cells in your body. Each of these millions of T cells has a unique receptor that are programmed to bind with only one type of antigen. This allows T cells to bind to cancerous cells while leaving normal cells unharmed. Your immune system seeks and destroys potential cancer cells every day. Without our immune system, we would be developing cancer a lot more often. The immune system is trained to recognize cells that could become cancerous. There are a number of stages in which your body protects you against cancer. The first stage occurs when the cells are still dividing. As cells divide, DNA replication can lead to errors or genetic mutations. These mutations can disrupt key genes needed to control cellular division. The cell itself has a DNA repair mechanism that reduces the chances of these errors, but sometimes the cell fails to repair DNA and it’s overwhelmed by genetic mutations. Because of that, it will start to divide uncontrollably and becomes cancerous. The task of protecting you against cancer now falls in the hands of killer T cells. These are immune cells that patrol our bodies to seek and destroy damaged cells. They can also destroy small tumors before they cause any harm. Damaged cells display molecules on their surfaces that signal danger. These molecules are recognized by the immune cells, which flag them for destruction. Credit: -   / ritterlab   -   / cells_invitro   -   / alexritter09