Structure & Function:
(Helper T-cells)
CD4 Receptors - allows T cells
to recognize antigens &
coordinate a response.
CD4 count is 500-1500 cell/mm3
Activates:
• B cells to produce antibody
• T cells (cytotoxic) attack
and kills infected cells
3. Express receptors (CD4,
CCR5/CXCR4 co-receptors) that
HIV uses to gain entry into the
cell.
, Human Immunodeficiency
Virus/Acquired Immuno
deficiency Syndrome
• It attacks the human body’s immune system, specifically the
positive cells.
• Macrophages
• dendritic cells
• and other cells with CD4 receptors
• Helper T cells
There is no cure for HIV, as of today, but medical treatment has advanced to make the
patients longer.
(Helper T-cells)
CD4 Receptors - allows T cells
to recognize antigens &
coordinate a response.
CD4 count is 500-1500 cell/mm3
Activates:
• B cells to produce antibody
• T cells (cytotoxic) attack
and kills infected cells
3. Express receptors (CD4,
CCR5/CXCR4 co-receptors) that
HIV uses to gain entry into the
cell.
, Human Immunodeficiency
Virus/Acquired Immuno
deficiency Syndrome
• It attacks the human body’s immune system, specifically the
positive cells.
• Macrophages
• dendritic cells
• and other cells with CD4 receptors
• Helper T cells
There is no cure for HIV, as of today, but medical treatment has advanced to make the
patients longer.
