The Effect of the Pre-Transplant Disease Status on the Outcome for Recipients of T-Cell Depleted Allogeneic Haematopoietic Stem Cell Transplants for Large B Cell Lymphomas.

Objectives: Deauville scores (DS) from PET/CT imaging are increasingly being used to direct response-adjusted treatment strategies in lymphoma, including large B cell lymphomas (LBCL). We aimed to investigate the outcome of allogeneic haematopoietic stem cell transplantation (alloHSCT) in LBCL and the role played by pre-transplant disease status, as determined by DS.

Methods: We performed a retrospective, observational study of adults treated with a T-cell depleted alloHSCT for de novo DLBCL or high-grade transformation.

Intrabone transplantation of CD34+ cells with optimized delivery does not enhance engraftment in a rhesus macaque model.

Intrabone (IB) injection of umbilical cord blood has been proposed as a potential mechanism to improve transplant engraftment and prevent graft failure. However, conventional IB techniques produce low retention of transplanted cells in the marrow. To overcome this barrier, we developed an optimized IB (OIB) injection method using low-volume, computer-controlled slow infusion that promotes cellular retention in the marrow.

Tracking of Adoptively Transferred Natural Killer Cells in Rhesus Macaques Using Zirconium-Oxine Cell Labeling and PET Imaging.

Purpose: Trials of adoptive natural killer (NK)-cell immunotherapy for hematologic malignancies have thus far shown only marginal effects, despite the potent antitumor activity of these cells. Homing of infused cells to tumor microenvironments is critical for efficacy, but has not been well characterized. We established a novel method to track and quantify the distribution of adoptively transferred NK cells using rhesus macaques (RM) as a clinically relevant preclinical model.