Natural killers in Our Body: Immune system in 3D

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Of all the #immune system soldiers, natural #killer #cells are the most aggressive. They are lymphocytes with no immunological memory, and are part of your innate immune system. Natural killer cells make up about five to 15% of the total circulating lymphocyte population. Natural killer cells are called natural killers, because they do not need to recognize a specific antigen before releasing their toxins and destroying a viral infected cell, or cancer cell. They target tumor cells and protect against a wide variety of infectious microbes. in several immunodeficiency diseases, including aids; natural killer cell function is abnormal. Thus allowing the viruses to multiply inside of human cells.

Natural killer cells kill on contact. The killer sale binds to its target, aims its weapons, and then delivers a lethal burst of toxins that produces holes and the target cells membrane, and creates events that destroy the cancer cell membrane and cleaves DNA into many pieces, in a program cell death, that is apoptosis manner. After releasing its lethal package of chemicals, the natural killer cell can detach from the cancer cell and kill many other circulating abnormal cells. Indeed, research has shown that most of the tumor cells that enter the circulation are destroyed during the first 24 hours, and only a few sales succeed in establishing themselves, and distant organs from the primary tumor, which is called metastasis. Natural killer cells may also contribute to immunoregulation by secreting high levels of influential lymphokines, therefore research to develop natural products to stimulate the natural killer cell activity, especially in immunosuppressed patients undergoing chemotherapy for cancer, or in any viral disease, such as aids or bird flu, where immunosuppression occurs is very important in the regulation of aspects of the immune system, which affects our overall health.