What's Included. 1  Official IAPP CIPP participant guide. 2  Official IAPP CIPP textbook. 3  Official IAPP CIPP practice test. 4  IAPP CIPP/G certification exam voucher. 5  IAPP Membership for one year.
Natural killer cells (NK cells) are a component of the innate immune system that does not directly attack invading microbes. Rather, NK cells destroy compromised host cells, such as tumor cells or virus-infected cells, recognizing such cells by a condition known as missing self..
How the immune system recognizes cancer. The immune system recognizes cancer in a few different ways. Immune cells, called natural killer cells are specialized to find cells that might be infected with a virus, bacteria or pre-cancerous cells because they look sick and the NK cells euthanize them.