Question

Some of the cytokines released in response to infection belong to a family of closely related proteins called chemokines, small polypeptides that are synthesized by phagocytes and many other cell types. These chemotactic cytokines are potent attractors for various leukocyte subsets, such as lymphocytes, neutrophils, and monocytes. Chemokines are classified into families, and one of them is the C class, with only one chemokine in it. This chemokine is thought to attract T cell precursors to the thymus. What is it called?

LTN
CEA
AFP
MAGE
Ras

Answer 1

The C class chemokine that attracts T cell precursors to the thymus is called XCL1 or lymphotactin. It plays a role in early immune responses and the adaptive immune system.

Step-by-step explanation:

The specific chemokine that belongs to the C class and is thought to attract T cell precursors to the thymus is known as XCL1, also called lymphotactin.

Chemokines are a type of cytokine, which are signaling molecules that cells use to communicate.

Specifically, chemokines are involved in chemotaxis, the process by which leukocytes (white blood cells) are attracted to sites of infection, inflammation, or tissue damage.

XCL1 plays a role in the early induced responses of the immune system, as well as later during adaptive immune responses.