In this week's episode, Blood editor Dr. James Griffin speaks with Drs. Emanuele Zucca and Sandra Pinho about their latest articles published in Blood. Dr. Zucca discusses his second analysis of the IELSG37 trial, where findings suggested that R-CHOP21 rituximab, cyclophosphamide,
doxorubicin, vincristine, and prednisone, administered every 21 days) may be a suboptimal frontline regimen for PMBCL. Dr. Pinho discusses the aging megakaryocytic niche and its influence on the age-associated decline in HSC and progenitor cell function. The authors demonstrate that remodeling of the megakaryocytic niche and associated platelet factor 4 (PF4) downregulation are central mechanisms driving HSC aging.

Featured Articles: 

• Impact of immunochemotherapy regimens on outcomes of patients with primary mediastinal B-cell lymphoma in the IELSG37 trial 
• Platelet Factor 4 (PF4) Regulates Hematopoietic Stem Cell Aging