Killer Cell

Killer cell is a term that describes a type of cell in the immune system that can kill pathogens and other foreign cells. These cells are called lymphocytes and are part of the adaptive immune system.

Lymphocytes are divided into two main types: T lymphocytes and B lymphocytes. T lymphocytes are responsible for cellular immunity, and B lymphocytes are responsible for humoral immunity.

T lymphocytes can recognize foreign antigens and attack them using their receptors called T-cell receptors (TCRs). This process is called cytotoxicity. T cells are also capable of producing cytokines that help regulate the immune response.

B lymphocytes, on the other hand, cannot directly attack foreign agents. Instead, they produce antibodies that bind to antigens and activate immune cells to destroy pathogens. Antibodies can be of various types, including IgG, IgM, IgA and IgE.

Killer cells play an important role in protecting the body from infections and other diseases. However, if they become too active, as can happen in some diseases, they can begin to attack the body's own cells, causing autoimmune diseases.

Thus, killer cells are an important element of the immune system that helps protect the body from pathogens and other foreign agents. However, their activity must be controlled to avoid possible complications.

A killer cell (K-Cell) is a special type of lymphocyte that plays an important role in the body's immune system. They are part of the cellular defense against infections and other pathogenic agents.

Killer cells are a group of cells that specialize in killing infected or degenerated cells. They can also attack cells that cause autoimmune diseases.

The way killer cells work is that they release special substances called cytokines, which activate other cells of the immune system to fight infection. In addition, killer cells are able to recognize and attack antigens, which helps protect the body from foreign agents.

However, like any other cells, killer cells can cause various health problems, such as autoimmune diseases or the use of certain medications. Therefore, it is important to control the level of killer cells in the body and monitor their activity.

In general, killer cells play an important role in protecting the body from infections and degenerated cells, but their activity must be balanced to avoid unwanted consequences.