scholarly journals “Ex‐vivo” T‐cell depletion in allogeneic hematopoietic stem cell transplantation for hematological malignancies: New clinical approaches for old challenges

2021 ◽  
Author(s):  
Miguel A. Diaz ◽  
Mercedes Gasior ◽  
Blanca Molina ◽  
Antonio Pérez‐Martínez ◽  
Marta González‐Vicent
Keyword(s):  
Stem Cell ◽  
T Cell ◽  
Hematopoietic Stem Cell Transplantation ◽  
Stem Cell Transplantation ◽  
Cell Transplantation ◽  
Hematopoietic Stem Cell ◽  
Hematological Malignancies ◽  
Ex Vivo ◽  
T Cell Depletion ◽  
Hematopoietic Stem

scholarly journals Haploidentical Hematopoietic Stem-Cell Transplantation in Adults

2011 ◽  
Vol 2011 ◽  
pp. 1-10 ◽  
Author(s):  
Salem Alshemmari ◽  
Reem Ameen ◽  
Javid Gaziev
Keyword(s):  
Stem Cell ◽  
T Cell ◽  
Hematopoietic Stem Cell Transplantation ◽  
Stem Cell Transplantation ◽  
Cell Transplantation ◽  
Hematopoietic Stem Cell ◽  
Cell Depletion ◽  
Unrelated Donor ◽  
T Cell Depletion ◽  
Hematopoietic Stem

Haploidentical hematopoietic stem-cell transplantation is an alternative transplant strategy for patients without an HLA-matched donor. Still, only half of patients who might benefit from transplantation are able to find an HLA-matched related or unrelated donor. Haploidentical donor is readily available for many patients in need of immediate stem-cell transplantation. Historical experience with haploidentical stem-cell transplantation has been characterised by a high rejection rate, graft-versus-host disease, and transplant-related mortality. Important advances have been made in this field during the last 20 years. Many drawbacks of haploidentical transplants such as graft failure and significant GVHD have been overcome due to the development of new extensive T cell depletion methods with mega dose stem-cell administration. However, prolonged immune deficiency and an increased relapse rate remain unresolved problems of T cell depletion. New approaches such as partial ex vivo or in vivo alloreactive T cell depletion and posttransplant cell therapy will allow to improve immune reconstitution in haploidentical transplants. Results of unmanipulated stem-cell transplantation with using ATG and combined immunosuppression in mismatched/haploidentical transplant setting are promising. This paper focuses on recent advances in haploidentical hematopoietic stem-cell transplantation for hematologic malignancies.

Haploidentical Hematopoietic Stem Cell Transplantation without In Vitro T Cell Depletion for Treatment of Hematological Malignancies in Children.

Blood ◽  
2007 ◽  
Vol 110 (11) ◽  
pp. 5069-5069
Author(s):  
Daihong Liu ◽  
Xiao Jun Huang ◽  
Kaiyan Liu ◽  
Lanping Xu ◽  
Huan Chen ◽  
...  
Keyword(s):  
Stem Cell ◽  
T Cell ◽  
Hematopoietic Stem Cell Transplantation ◽  
Stem Cell Transplantation ◽  
Cell Transplantation ◽  
Hematopoietic Stem Cell ◽  
Cumulative Incidence ◽  
Risk Group ◽  
T Cell Depletion ◽  
Hematopoietic Stem

Abstract Objective: To evaluate the efficacy and safety of haploidentical hematopoietic stem cell transplantation (HCT) for children with donors from family members. Patients and methods: Forty-two children under fourteen years old with hematologic malignancies underwent haploidentical HCT. The outcome was analyzed. Results: Four (9.5%) of the forty-two patients/donor pairs mismatched in one HLA locus, fifteen (35.7%) pairs in two loci and twenty three (54.8%) in three loci. They were followed up for a median of 612 (40–1779) days. All patients achieved stable engraftment. The cumulative incidence of acute graft-versus-host disease (GVHD) grade 2–4 was 57.2%, and that of grade 3–4 was 13.8%. The cumulative incidence of total and extensive chronic GVHD was 56.7% and 29.5%, respectively. The probability of leukemia-free survival was 65.1% in standard-risk group and 49.6% in high-risk group. Fourteen patients died, four from infection, six from relapse of leukemia, two from heart failure, one from severe acute GVHD, and one from lymphoproliferative disorders. The probability of relapse was 13.8% at 1 year and 27.9% at 2 year after transplantation. Conclusion: The results in this study encourage extending the haploidentical HCT without T-cell depletion to children with an indication for transplantation.

Sign in / Sign up

Export Citation Format

Share Document