A type of white blood cell, also called a helper T cell. They help other immune cells work together to fight a variety of diseases. HIV infects CD4 cells and uses parts of the cell to reproduce.
(see also T cell) white blood cell that helps direct the body's infection-fighting cells. It is the primary target of HIV.
A kind of immune system cell that helps protect the body against infections. Also known as "T helper cells," CD4 cells activate other parts of the immune system response by telling other cells to perform their specific roles in fighting infection. Destruction of CD4 cells by HIV is the main way the virus weakens the immune system. A decreasing CD4 cell count means that an HIV+ person is at greater risk of getting opportunistic infections and illnesses.
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
A type of T-Cell, or lymphocyte, that is a receptor for HIV.
A type of T-cell involved in protecting against viral, fungal and protozoal infections. The CD4 cell modulates the immune response to an infection through a complex series of interactions with antigen presenting cells (macrophages, dendritic cells and B cells) and other types of lymphocytes (B-cells and CD8 cells). Other names for CD4 cell are T-helper cell or helper T-cell.
a type of immune system white blood cell that carries the CD4 cell surface receptor and helps the body fight infection. CD4 cells release cytokines that regulate other immune cells.
a type of white blood cell that carries the CD4 cell surface receptor and helps the body fight infection. CD4 cells release cytokines that coordinate a broad range of immune system activities including killer cell activation and antibody production. HIV invades CD4 cells, typically resulting in their dysfunction or destruction.
a kind of cell that helps your body fight infection, but is also attacked by HIV. CD4 cell counts are a way healthcare providers measure how well your body and your HIV medicine are controlling the virus.