Vasily Grinev became a co-author of the article “Epigenetic regulator genes direct lineage switching in MLL/AF4 leukaemia“, accepted for publication in Blood. The article is devoted to deciphering the mechanisms that control the switching of lines of differentiation of leukemic and normal human blood cells. It was born thanks to a 10-year effort by a consortium of 57 scientists working in 20 Institutions from 7 countries of the world. Blood, with a current Impact Factor of 25.476, is the flagman journal of the American Society of Hematology. For many years, this journal has consistently ranked first in prestige and popularity among all scientific journals that publish the results of fundamental and applied research in hematology.