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Immune cell sequencing after allogeneic hematopoietic cell transplantation [scRNA-seq]

ABSTRACT: Allogeneic hematopoietic stem cell transplantation (allo-HSCT) is a curative therapy for hematologic malignancies. The primary non-relapse complication after allo-HSCT is graft-versus-host disease (GVHD). The use of T regulatory (Treg) cells to prevent GVHD has emerged as a promising allogeneic T cell immunotherapy in the form of Orca-T. However, the precise differences in immune states which may influence clinical outcomes after Orca-T compared with unmanipulated peripheral blood stem cell (PBSC) grafts remain unexplored. Using peripheral blood specimens longitudinally collected between 3 weeks and one year after leukemia treatment, we examined single-cell mRNA sequencing (scRNA-seq) analysis of 16 HLA-matched patients receiving either Orca-T or unmanipulated PBSC grafts.

ORGANISM(S): Homo sapiens

PROVIDER: GSE290864 | GEO | 2026/03/01

REPOSITORIES: GEO

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Immune cell sequencing after allogeneic hematopoietic cell transplantation

Project description:Allogeneic hematopoietic stem cell transplantation (allo-HSCT) is a curative therapy for hematologic malignancies. The primary non-relapse complication after allo-HSCT is graft-versus-host disease (GVHD). The use of T regulatory (Treg) cells to prevent GVHD has emerged as a promising allogeneic T cell immunotherapy in the form of Orca-T. However, the precise differences in immune states which may influence clinical outcomes after Orca-T compared with unmanipulated peripheral blood stem cell (PBSC) grafts remain unexplored. Using peripheral blood specimens longitudinally collected between 3 weeks and one year after leukemia treatment, we examined single-cell mRNA sequencing (scRNA-seq) analysis of 16 HLA-matched patients receiving either Orca-T or unmanipulated PBSC grafts.

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