in this center, from 1991 to 2002, 89 chronic myelogenous leukemic (cml) patients, age ranging between 8-48 years with a median age of 29, underwent hematopoietic stem cell transplantation. eighty-eight patients were in the first chronic phase of disease. twenty-three patients received bone marrow transplantation (bmt) and 66 patients received peripheral blood stem cell transplantations (pbsct)...

background: for adult all patients, the indications and appropriate timing of allogeneic hematopoietic stem cell transplantation (ahsct) continue to be debated. the primary aim of this single-institution study was to compare the results of our adult all patients that had been allografted with those reported in the current literature. subjects and methods: this study included 53 consecutive adul...

allogeneic hematopoietic stem cell transplantation (hsct) is the most effective therapy to prevent relapse in acute lymphocytic leukemia (all). this benefit is affected by non-relapse mortality (nrm) due to complications such as graft versus host disease (gvhd). a new approach in analyzing time-dependent covariates in competing risks is landmark analysis. so, the aim of this study is to evaluat...

OBJECTIVES Costimulatory gene polymorphisms have been proposed to affect the hepatitis B virus pathogenesis by affecting regulation of immune responses. The association between costimulatory molecule gene polymorphisms including CTLA4, PD.1, ICOS, and CD28 with hepatitis B virus infection has been evaluated in hematopoietic stem cell transplant patients. MATERIALS AND METHODS In a cross-secti...

Peripheral blood progenitor cells (PBPCs) are increasingly being used to replace bone marrow cells (BMCs) as a source of hematopoietic stem cells also in the field of allogeneic transplantation. Whereas it is well known that PBPC grafts and BM differ significantly in progenitor cell content and lymphocyte dose, the clinical consequences of these differences with respect to engraftment, graft-ve...

Over the past decade, considerable advances have been made in the field of allogeneic hematopoietic stem cell transplantation. Recognition that transplanted donor immune cells can cure patients with leukemia has led to the development of nonmyeloablative or "low-intensity" conditioning regimens, which have expanded the application of allogeneic transplantation to a growing number of hematologic...

Blood substitutes have long been sought after, and artificial oxygen carriers may soon become a reality. Despite increased safety of allogeneic blood in terms of transmission of infectious diseases [1], avoiding allogeneic blood transfusions remains an important goal in perioperative and intensive care medicine. This is because allogeneic blood transfusions may cause immunosuppression with an i...

UNLABELLED The ability to repair damaged cartilage is a major goal of musculoskeletal tissue engineering. Allogeneic (same species, different individual) or xenogeneic (different species) sources can provide an attractive source of chondrocytes for cartilage tissue engineering, since autologous (same individual) cells are scarce. Immune rejection of non-autologous hyaline articular cartilage ha...

We report herein the successful long term engraftment of highly purified hematopoietic stem cells (HSCs) without any facilitating cells in fully allogeneic recipient mice across the entire major histocompatibility complex (MHC) transplantation barrier. This finding challenges the assumption that highly purified marrow HSCs alone cannot produce long-lived allogeneic bone marrow chimeras across t...

These experiments were designed to define the ability of human TCR-gamma+ cells to recognize allogeneic cells. TCR-gamma+-enriched populations were obtained by treating peripheral blood E-rosetting cells with anti-CD4 and anti-CD8 mAbs. The resulting populations were CD2+4-8- expressed variable proportions of CD3+ cells (40-90%), and did not react with the WT31 mAb, which is specific for a fram...