T Cells

T cells are distinguished from other lymphocytes by the T cell receptor (TCR), which B cells and Natural Killer cells do not express. Developed from hematopoietic stem cells in the bone marrow, T cells mature in the thymus. There are several types of T cells based on their specific function: helper/effector, cytotoxic, memory, regulatory and gamma delta (γδ) T cells.

T-cell sub-types:

• T reg
• CTL
• T-helper