Acute myeloid leukemia human/mouse co-clinical trial feasibility study optimized in human transgenic IL-3/GMCSF NOD/Shi-scid-IL2rnull mice
Cancer Research(2018)
Abstract
Acute myeloid leukemia (AML) co-clinical modeling has been optimized with peripheral blood mononuclear cells (PBMCs) collected from low volume (14 mL) patient samples to establish an algorithm for efficiently co-clinically modeling AML patients. Methods: PBMCs were ficoll gradient purified and viably cryopreserved. Intrahepatic (i.h.) inoculation of AML PBMCs in neonate NOD/Shi-scid-IL2rγnull (NOG) mice and intravenous (i.v.) inoculation in both juvenile NOG mice and juvenile human transgenic IL-3/GMCSF NOD/Shi-scid-IL2rγnull mice (NOG-EXL) were evaluated. Bone marrow (BM) aspirates, splenocytes and PBMCs from mice were evaluated by fluorescence-activated cell sorting (FACS) at 12 weeks post AML inoculation for engraftment as determined by % ratio of human CD33+ cells to total CD45+ cells (human + murine cells). Humerus bones from inoculated animals were also evaluated by human CD33 immunohistochemistry (IHC). Results: Cells from 2/6 AML patient samples (CTG-2224 and CTG-2357) successfully engrafted into neonate mice. Animals were dosed with vehicle, cytarabine, ABBV-075 (clinical trial-staged BET family bromodomain (BD) inhibitor), or ABBV-744 (a preclinical BDII selective inhibitor) and evaluated for tumor burden six weeks post drug treatment initiation. ABBV-075 and ABBV-744 treated animals had lower tumor burden in the CTG-2224 model, 17% (p Citation Format: Neal C. Goodwin, Daniel H. Albert, Angela M. Davies, Jenny Rowe, Gerold Feuer, Michael Boyiadzis, Kathleen A. Dorritie, Maria Mancini, Regina Gandour-Edwards, Warren M. Kati, Mark D. McKee, Keith F. McDaniel, David J. Frost. Acute myeloid leukemia human/mouse co-clinical trial feasibility study optimized in human transgenic IL-3/GMCSF NOD/Shi-scid-IL2rγnull mice [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2018; 2018 Apr 14-18; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2018;78(13 Suppl):Abstract nr 1150.
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Adoptive Cell Transfer
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