What are B-cells?
The major cells of the immune system are white blood cells, which generally are comprised of macrophages, neutrophils and lymphocytes (B-lymphocytes, T-lymphocytes and natural killer cells). B-cells (B-lymphocytes) originate in the bone marrow and mature into plasma cells that secrete antibodies, the proteins that recognize and attach to foreign substances known as antigens. B-cells play a key role in the development of certain forms of cancer and autoimmune disorders.
