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Immune Reconstitution in Recipients of Photodepleted HLA-Identical Sibling Donor Stem Cell Transplantations: T Cell Subset Frequencies Predict Outcome 

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Presentation on theme: "Immune Reconstitution in Recipients of Photodepleted HLA-Identical Sibling Donor Stem Cell Transplantations: T Cell Subset Frequencies Predict Outcome "— Presentation transcript:

1 Immune Reconstitution in Recipients of Photodepleted HLA-Identical Sibling Donor Stem Cell Transplantations: T Cell Subset Frequencies Predict Outcome  Zachariah A. McIver, Jan J. Melenhorst, Andrew Grim, Nicholas Naguib, Gerrit Weber, Vicki Fellowes, Hahn Khuu, David S. Stroncek, Susan F. Leitman, Minoo Battiwalla, A. John Barrett  Biology of Blood and Marrow Transplantation  Volume 17, Issue 12, Pages (December 2011) DOI: /j.bbmt Copyright © Terms and Conditions

2 Figure 1 Changes in frequency of T cell subsets after PD. Mean percentage ± SEM of the (A) CD4, (B) the CD8 T cell subsets, (C) Tregs, and (D) NK and B cells before (solid bar) and after PD (white bar). Biology of Blood and Marrow Transplantation  , DOI: ( /j.bbmt ) Copyright © Terms and Conditions

3 Figure 2 Differences in TH9402 extrusion of T cell subsets in representative sample by flow cytometry. Biology of Blood and Marrow Transplantation  , DOI: ( /j.bbmt ) Copyright © Terms and Conditions

4 Figure 3 T cell proliferation against CMV antigens before and after PD. Biology of Blood and Marrow Transplantation  , DOI: ( /j.bbmt ) Copyright © Terms and Conditions

5 Figure 4 (A) Absolute lymphocyte counts during the first 100 days for patient receiving either a T cell depleted (open circles) or photodepleted (dark squares) SCT. (B) T cell chimerism during the first 100 days after SCT. Biology of Blood and Marrow Transplantation  , DOI: ( /j.bbmt ) Copyright © Terms and Conditions

6 Figure 5 Ex vivo anti-CMV immune response in samples collected 100 days after PD and TCD SCT in the (A) CD4 and (B) CD8 T cells. Biology of Blood and Marrow Transplantation  , DOI: ( /j.bbmt ) Copyright © Terms and Conditions

7 Figure 6 OS of patients receiving a PD SCT. Median frequency of CD4 central memory cells of 15% was used for survival curve generation (-log-rank HR 7.7, P = .006). Biology of Blood and Marrow Transplantation  , DOI: ( /j.bbmt ) Copyright © Terms and Conditions


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