Definition: A CD8 T cell is a type of white blood cell that plays an important role in the immune system. It has a special receptor called CD8 that helps it recognize and attack cells infected by viruses. When a CD8 T cell finds an infected cell, it binds to it and can destroy it, helping to protect the body from diseases.
In more advanced discussions, you may encounter terms like "immunotherapy," where CD8 T cells are engineered to enhance their ability to fight cancer. For example: - "Researchers are developing treatments that use CD8 T cells to target and eliminate tumor cells."
In biology, "CD8" specifically refers to the type of receptor on the T cell. However, outside of biology, "CD" can refer to "compact disc" in music, or "certificate of deposit" in finance. Always consider the context to determine the meaning.
While "CD8 T cell" does not have idioms or phrasal verbs associated with it, it’s often discussed in phrases like: - "Mount an immune response," which means to activate the immune system, including CD8 T cells, to fight an infection.
In summary, a CD8 T cell is a specific type of immune cell that helps protect the body from virus-infected cells. It is crucial for maintaining health and fighting infections.