Cd4 T Cell (Noun)
Meaning
T cell with CD4 receptor that recognizes antigens on the surface of a virus-infected cell and secretes lymphokines that stimulate B cells and killer T cells; helper T cells are infected and killed by the AIDS virus.
Classification
Nouns denoting body parts.
Examples
- CD4 T cells are essential in coordinating the immune response against pathogens, including bacteria, viruses, and other foreign invaders.
- Helper T cells, also known as CD4 T cells, recognize antigens on the surface of infected cells through their T-cell receptor.
- A hallmark of AIDS is the severe depletion of CD4 T cells, leading to immunosuppression and susceptibility to opportunistic infections.
- In response to antigen presentation, CD4 T cells can differentiate into various effector cell types, such as Th1, Th2, Th17, and Tfh cells.
- The interaction between CD4 T cells and antigen-presenting cells, such as dendritic cells, is critical in initiating and regulating the adaptive immune response.