PMID- 23528871 OWN - NLM STAT- MEDLINE DCOM- 20130916 LR - 20220409 IS - 1476-5551 (Electronic) IS - 0887-6924 (Print) IS - 0887-6924 (Linking) VI - 27 IP - 7 DP - 2013 Jul TI - Generation of multi-leukemia antigen-specific T cells to enhance the graft-versus-leukemia effect after allogeneic stem cell transplant. PG - 1538-47 LID - 10.1038/leu.2013.66 [doi] AB - Adoptive immunotherapy with ex vivo expanded T cells is a promising approach to prevent or treat leukemia. Myeloid leukemias express tumor-associated antigens (TAA) that induce antigen-specific cytotoxic T lymphocyte (CTL) responses in healthy individuals. We explored the feasibility of generating TAA-specific CTLs from stem cell donors of patients with myeloid leukemia to enhance the graft-versus-leukemia effect after stem cell transplantation. CTL lines were manufactured from peripheral blood of 10 healthy donors by stimulation with 15mer peptide libraries of five TAA (proteinase 3 (Pr3), preferentially expressed antigen in melanoma, Wilms tumor gene 1 (WT1), human neutrophil elastase (NE) and melanoma-associated antigen A3) known to be expressed in myeloid leukemias. All CTL lines responded to the mix of five TAA and were multi-specific as assessed by interferon-gamma enzyme-linked immunospot. Although donors showed individual patterns of antigen recognition, all responded comparably to the TAAmix. Immunogenic peptides of WT1, Pr3 or NE could be identified by epitope mapping in all donor CTL lines. In vitro experiments showed recognition of partially human leukocyte antigen (HLA)-matched myeloid leukemia blasts. These findings support the development of a single clinical grade multi-tumor antigen-specific T-cell product from the stem cell source, capable of broad reactivity against myeloid malignancies for use in donor-recipient pairs without limitation to a certain HLA-type. FAU - Weber, G AU - Weber G AD - Center for Cell and Gene Therapy, Baylor College of Medicine, The Methodist Hospital and Texas Children's Hospital, Houston, TX 77030, USA. FAU - Gerdemann, U AU - Gerdemann U FAU - Caruana, I AU - Caruana I FAU - Savoldo, B AU - Savoldo B FAU - Hensel, N F AU - Hensel NF FAU - Rabin, K R AU - Rabin KR FAU - Shpall, E J AU - Shpall EJ FAU - Melenhorst, J J AU - Melenhorst JJ FAU - Leen, A M AU - Leen AM FAU - Barrett, A J AU - Barrett AJ FAU - Bollard, C M AU - Bollard CM LA - eng GR - P01 CA148600/CA/NCI NIH HHS/United States GR - P30 CA016672/CA/NCI NIH HHS/United States GR - R21 CA149967/CA/NCI NIH HHS/United States GR - 1P01CA148600-01/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20130301 PL - England TA - Leukemia JT - Leukemia JID - 8704895 RN - 0 (Antigens, Neoplasm) RN - 0 (Membrane Glycoproteins) RN - 0 (Peptide Fragments) RN - 0 (WT1 Proteins) RN - 0 (thymus-leukemia antigens) RN - EC 3.4.21.37 (Leukocyte Elastase) RN - EC 3.4.21.76 (Myeloblastin) SB - IM MH - Antigens, Neoplasm/immunology MH - Cell Line MH - Dendritic Cells/cytology/immunology MH - Epitope Mapping MH - Graft vs Leukemia Effect/*immunology MH - Hematopoietic Stem Cell Transplantation/*methods MH - Histocompatibility Testing MH - Humans MH - Immunophenotyping MH - Leukemia, Myeloid/immunology/*therapy MH - Leukocyte Elastase/immunology MH - Membrane Glycoproteins/*immunology MH - Myeloblastin/immunology MH - Peptide Fragments/immunology MH - Recurrence MH - T-Lymphocytes, Cytotoxic/*cytology/*immunology MH - Tissue Donors MH - Transplantation, Homologous MH - WT1 Proteins/immunology PMC - PMC3867129 MID - NIHMS499272 COIS- Conflict of Interest: The authors declare no conflict of interest. EDAT- 2013/03/27 06:00 MHDA- 2013/09/17 06:00 PMCR- 2014/07/01 CRDT- 2013/03/27 06:00 PHST- 2012/12/20 00:00 [received] PHST- 2013/02/07 00:00 [revised] PHST- 2013/02/20 00:00 [accepted] PHST- 2013/03/27 06:00 [entrez] PHST- 2013/03/27 06:00 [pubmed] PHST- 2013/09/17 06:00 [medline] PHST- 2014/07/01 00:00 [pmc-release] AID - leu201366 [pii] AID - 10.1038/leu.2013.66 [doi] PST - ppublish SO - Leukemia. 2013 Jul;27(7):1538-47. doi: 10.1038/leu.2013.66. Epub 2013 Mar 1.