04 Aug

What type of cell is a T Cell?

A T cell is a type of lymphocyte - white blood cell

What do T Cells do?

T cells are one of the important white blood cells of the immune system and play a central role in the adaptive immune response. T cells can be distinguished from other lymphocytes by the presence of a T-cell receptor on their cell surface.

Where are T Cells found?

T cells are develop from stem cells in the bone marrow. These T cells then migrate to the thymus to mature, hence the name of T Cell. 

After migration to the thymus, the precursor cells mature into several distinct types of T cells. T cell differentiation also continues after they have left the thymus. 

Specific and differentiated T cell types play a whole host of functions in the immune response. 

T Cells are also characterised by receptors and molecules called CD molecules on the cell surface - Cluster of Differentiation and these are expressed on a variety of immune system cells.

How are T Cells classified?

Current T Cell types of interest are therefore and broadly classified into 3 categories of regulatory, cytotoxic and helper T cell function

  1. Th17 Cells - Helper T Cells
  2. Th1 Cells - Helper T Cells
  3. Th2 Cells  - Helper T Cells
  4. Th0 Cells   - Naive T Cells
  5. TReg Cells - Regulatory T Cells
  6. Tc Cells - Cytotoxic T Cells

Credit BMC Informatics

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