**From HSC to B-Lymphoid Cells in Normal and Malignant Hematopoiesis**

Rosana Pelayo1, Elisa Dorantes-Acosta1,2, Eduardo Vadillo1 and Ezequiel Fuentes-Pananá3 *1Oncology Research Unit, Oncology Hospital, Mexican Institute for Social Security, Mexico City 2Leukemia Clinic, Mexican Children's Hospital 'Federico Gómez', Mexico City 3Research Unit on Parasitic and Infectious Diseases, Pediatric Hospital, Mexican Institute for Social Security, Mexico City Mexico* 
