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Ectopic Humanized Mesenchymal Niche in Mice Enables Robust Engraftment of Myelodysplastic Stem Cells

Abstract

Myelodysplastic syndrome (MDS) are clonal stem cell diseases characterized mainly by ineffective hematopoiesis. Here, we present an approach that enables robust long-term engraftment of primary MDS stem cells (MDS-SCs) in mice by implantation of human mesenchymal cell-seeded scaffolds. Critically for modelling MDS, where patient sample material is limiting, mononuclear bone marrow cells containing as few as 10 CD34 cells can be engrafted and expanded by this approach with the maintenance of the genetic make-up seen in the patients. Non-invasive high-resolution ultrasound imaging shows that these scaffolds are fully perfused. Our data shows that human microenvironment but not mouse is essential to MDS-SCs homing and engraftment. Notably, the alternative niche provided by healthy donor MSCs enhanced engraftment of MDS-SCs. This study characterizes a new tool to model MDS human disease with the level of engraftment previously unattainable in mice, and offers insights into human-specific determinants of MDS-SC microenvironment.

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References
1.
Krevvata M, Shan X, Zhou C, Dos Santos C, Habineza Ndikuyeze G, Secreto A . Cytokines increase engraftment of human acute myeloid leukemia cells in immunocompromised mice but not engraftment of human myelodysplastic syndrome cells. Haematologica. 2018; 103(6):959-971. PMC: 6058784. DOI: 10.3324/haematol.2017.183202. View

2.
Taussig D, Vargaftig J, Miraki-Moud F, Griessinger E, Sharrock K, Luke T . Leukemia-initiating cells from some acute myeloid leukemia patients with mutated nucleophosmin reside in the CD34(-) fraction. Blood. 2010; 115(10):1976-84. PMC: 2837317. DOI: 10.1182/blood-2009-02-206565. View

3.
Dykstra B, Olthof S, Schreuder J, Ritsema M, de Haan G . Clonal analysis reveals multiple functional defects of aged murine hematopoietic stem cells. J Exp Med. 2011; 208(13):2691-703. PMC: 3244040. DOI: 10.1084/jem.20111490. View

4.
Balderman S, Li A, Hoffman C, Frisch B, Goodman A, LaMere M . Targeting of the bone marrow microenvironment improves outcome in a murine model of myelodysplastic syndrome. Blood. 2015; 127(5):616-25. PMC: 4742549. DOI: 10.1182/blood-2015-06-653113. View

5.
Borgmann A, Baldy C, von Stackelberg A, Beyermann B, Fichtner I, Nurnberg P . Childhood all blasts retain phenotypic and genotypic characteristics upon long-term serial passage in NOD/SCID mice. Pediatr Hematol Oncol. 2000; 17(8):635-50. DOI: 10.1080/08880010050211349. View