Unknown,Transcriptomics,Genomics,Proteomics

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Peripheral tissue instruction is the primary determinant of CD8+ T cell pathogenicity: transcription profiling by array of donor CD8+ effector T cells isolated from the secondary lymphoid organs, blood and GVHD-target organs at D+7 post-transplant (FTY720)

ABSTRACT: This study reports the evolution of the donor CD8 effector T cell transcriptomes at multiple sites and time points within the same host following allo-SCT. Donor derived CD8+ T cells were flow sorted from multiple organs in mice developing GVHD in two clinically relevant murine models of H-2b MHC-matched minor antigen-mismatched BMT: (1) B6>129 model – transfer of C57BL/6 polyclonal CD4+ and CD8+ T cells into 129/Sv BMT recipients; (2) F>M – transfer of monoclonal HY-specific TCR-transgenic MataHari CD8+ T cells into C57BL/6 male BMT recipients. To test the effect of early lymph node egress on CD8 effector T cell transcription profile, BMT recipients were treatment with FTY720 (1.0mg/kg/day, from D+3 to D+7).

ORGANISM(S): Mus musculus

SUBMITTER: Pedro Miguel Santos e Sousa 

PROVIDER: E-MTAB-5380 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Graft-versus-host disease (GVHD) is a life-threatening complication of allogeneic stem cell transplantation induced by the influx of donor-derived effector T cells (TE) into peripheral tissues. Current treatment strategies rely on targeting systemic T cells; however, the precise location and nature of instructions that program TE to become pathogenic and trigger injury are unknown. We therefore used weighted gene coexpression network analysis to construct an unbiased spatial map of TE differenti  ...[more]

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