TY - JOUR
T1 - Correction of murine sickle cell disease by allogeneic haematopoietic cell transplantation with anti-3rd party veto cells
AU - Singh, Aloukick Kumar
AU - Schetzen, Elias
AU - Yadav, Sandeep Kumar
AU - Lustig, Esther Bachar
AU - Liu, Wei Hsin
AU - Yadav, Raj Kumar
AU - Gale, Robert Peter
AU - McGinnis, Kathryn
AU - Reisner, Yair
N1 - Publisher Copyright:
© 2021, The Author(s), under exclusive licence to Springer Nature Limited part of Springer Nature.
PY - 2021/8
Y1 - 2021/8
N2 - Despite advances in gene therapy allogeneic hematopoietic stem cell transplants (HSCT) remains the most effective way to cure sickle cell disease (SCD). However, there are substantial challenges including lack of suitable donors, therapy-related toxicity (TRM) and risk of graft-versus-host disease (GvHD). Perhaps the most critical question is when to do a transplant for SCD. Safer transplant protocols for HLA-disparate HSCT is needed before transplants are widely accepted for SCD. Although risk of GvHD and TRM are less with T-cell-deplete HSCT and reduced-intensity conditioning (RIC), transplant rejection is a challenge. We have reported graft rejection of T cell-depleted non-myeloablative HSCT can be overcome in wild type fully mis-matched recipient mice, using donor-derived anti-3rd party central memory CD8-positive veto cells combined with short-term low-dose rapamycin. Here, we report safety and efficacy of this approach in a murine model for SCD. Durable donor-derived chimerism was achieved using this strategy with reversal of pathological parameters of SCD, including complete conversion to normal donor-derived red cells, and correction of splenomegaly and the levels of circulating reticulocytes, hematocrit, and hemoglobin.
AB - Despite advances in gene therapy allogeneic hematopoietic stem cell transplants (HSCT) remains the most effective way to cure sickle cell disease (SCD). However, there are substantial challenges including lack of suitable donors, therapy-related toxicity (TRM) and risk of graft-versus-host disease (GvHD). Perhaps the most critical question is when to do a transplant for SCD. Safer transplant protocols for HLA-disparate HSCT is needed before transplants are widely accepted for SCD. Although risk of GvHD and TRM are less with T-cell-deplete HSCT and reduced-intensity conditioning (RIC), transplant rejection is a challenge. We have reported graft rejection of T cell-depleted non-myeloablative HSCT can be overcome in wild type fully mis-matched recipient mice, using donor-derived anti-3rd party central memory CD8-positive veto cells combined with short-term low-dose rapamycin. Here, we report safety and efficacy of this approach in a murine model for SCD. Durable donor-derived chimerism was achieved using this strategy with reversal of pathological parameters of SCD, including complete conversion to normal donor-derived red cells, and correction of splenomegaly and the levels of circulating reticulocytes, hematocrit, and hemoglobin.
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U2 - 10.1038/s41409-021-01237-6
DO - 10.1038/s41409-021-01237-6
M3 - Article
C2 - 33658643
AN - SCOPUS:85102025883
SN - 0268-3369
VL - 56
SP - 1818
EP - 1827
JO - Bone marrow transplantation
JF - Bone marrow transplantation
IS - 8
ER -