Chung Yang Jo, Khawaja Ghanwa, Wolcott Karen M, Aplan Peter D
Genetics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health;
Genetics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health.
J Vis Exp. 2018 Oct 3(140):58140. doi: 10.3791/58140.
Myelodysplastic syndromes (MDS) are a diverse group of hematopoietic stem cell disorders that are defined by ineffective hematopoiesis, peripheral blood cytopenias, dysplasia, and a propensity for transformation to acute leukemia. NUP98-HOXD13 (NHD13) transgenic mice recapitulate human MDS in terms of peripheral blood cytopenias, dysplasia, and transformation to acute leukemia. We previously demonstrated that MDS could be transferred from a genetically engineered mouse with MDS to wild-type recipients by transplanting MDS bone marrow nucleated cells (BMNC). To more clearly understand the MDS cell of origin, we have developed approaches to transplant specific, immunophenotypically defined hematopoietic subsets. In this article, we describe the process of isolating and transplanting specific populations of hematopoietic stem and progenitor cells. Following transplantation, we describe approaches to assess the efficiency of transplantation and persistence of the donor MDS cells.
骨髓增生异常综合征(MDS)是一组多样的造血干细胞疾病,其特征为造血无效、外周血细胞减少、发育异常以及转化为急性白血病的倾向。NUP98-HOXD13(NHD13)转基因小鼠在出现外周血细胞减少、发育异常以及转化为急性白血病方面重现了人类MDS。我们之前证明,通过移植MDS骨髓有核细胞(BMNC),可以将MDS从患有MDS的基因工程小鼠转移到野生型受体。为了更清楚地了解MDS的起源细胞,我们开发了移植特定的、免疫表型定义的造血亚群的方法。在本文中,我们描述了分离和移植特定造血干细胞和祖细胞群体的过程。移植后,我们描述了评估移植效率和供体MDS细胞持久性的方法。