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A Novel Potent Fas Agonist for Selective Depletion of Tumor Cells in Hematopoietic Transplants

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Journal Blood Cancer J
Date 2012 Jul 26
PMID 22829095
Citations 2
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Abstract

There remains a clear need for effective tumor cell purging in autologous stem cell transplantation (ASCT) where residual malignant cells within the autograft contribute to disease relapse. Here we propose the use of a novel Fas agonist with potent pro-apoptotic activity, termed MegaFasL, as an effective ex-vivo purging agent. MegaFasL selectively kills hematological cancer cells from lymphomas and leukemias and prevents tumor development at concentrations that do not reduce the functional capacity of human hematopoietic stem/progenitor cells both in in vitro and in in vivo transplantation models. These findings highlight the potential use of MegaFasL as an ex-vivo purging agent in ASCT.

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References
1.
Lee N, Cheong H, Kim S, Kim S, Kim C, Lee K . Ex vivo purging of leukemia cells using tumor-necrosis-factor-related apoptosis-inducing ligand in hematopoietic stem cell transplantation. Leukemia. 2003; 17(7):1375-83. DOI: 10.1038/sj.leu.2402960. View

2.
Eppich H, Foxall R, Gaynor K, Dombkowski D, Miura N, Cheng T . Pulsed electric fields for selection of hematopoietic cells and depletion of tumor cell contaminants. Nat Biotechnol. 2000; 18(8):882-7. DOI: 10.1038/78504. View

3.
Granena A, Castellsague X, Badell I, Ferra C, Ortega J, Brunet S . Autologous bone marrow transplantation for high risk acute lymphoblastic leukemia: clinical relevance of ex vivo bone marrow purging with monoclonal antibodies and complement. Bone Marrow Transplant. 1999; 24(6):621-7. DOI: 10.1038/sj.bmt.1701957. View

4.
Dick J, Bhatia M, Gan O, Kapp U, Wang J . Assay of human stem cells by repopulation of NOD/SCID mice. Stem Cells. 1997; 15 Suppl 1:199-203; discussion 204-7. DOI: 10.1002/stem.5530150826. View

5.
Mohr A, Zwacka R, Jarmy G, Buneker C, Schrezenmeier H, Dohner K . Caspase-8L expression protects CD34+ hematopoietic progenitor cells and leukemic cells from CD95-mediated apoptosis. Oncogene. 2005; 24(14):2421-9. DOI: 10.1038/sj.onc.1208432. View