P860: THE DE NOVO DNA METHYLTRANSFERASE DNMT3B PLAYS AN IMPORTANT ROLE IN MM CELL GROWTH, CLONOGENICITY AND DRUG RESPONSE. (23rd June 2022) - Muylaert, C.; Van Hemelrijck, L.; Vlummens, P.; Maes, A.; De Veirman, K.; Menu, E.; Vanderkerken, K.; De Bruyne, E.