Still, scientists have made a lot of progress in understanding how certain changes in DNA can cause normal lymphocytes to become lymphoma cells. DNA is the .
B lymphocytes (B cells): B cells normally help protect the body against germs (
Infection with HIV, the virus that causes AIDS, is known to increase the risk NHL,. Preventing the spread of the human T-cell lymphotropic virus (HTLV-1) could .
Most non–Hodgkin's lymphomas originate in the B–cells, which make them B–cell non–Hodgkin's lymphomas, rather than T-cell lymphomas. The reasons for the .