Interesting Gizmag article on Ibrutinib with some good background on how lymphocytes work and how CLL and MCL differ. (Ibrutinib trials were done on both).
gizmag.com/lymphoma-treatme...
It is worth looking through the associated pictures. The first explains well how B and T cells work together to clear infections and give future immunity from reinfection. Either click on View All or use this link:
gizmag.com/lymphoma-treatme...
Note that the last image is of a lymphoma cell mass, not a lymphoma cell.
Neil