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  • Title: In vivo flow cytometry combined with intravital microscopy to monitor kinetics of transplanted bone marrow mononuclear cells in peripheral blood and bone marrow.
    Author: Wang F, Wei D, Suo Y, Zhu X, Yuan Y, Gao W, Jiang H, Wei X, Chen T.
    Journal: Mol Biol Rep; 2020 Jan; 47(1):1-10. PubMed ID: 31813129.
    Abstract:
    Bone marrow mononuclear cells (BM-MNCs) transplantation has evolved as a promising experimental treatment in various regenerative therapy fields, especially in clinical hematopoietic stem cells transplantation (HSCT). In vitro methods have mainly been used to study the pre-clinical kinetics of BM-MNCs in mice after transplantation. And it is difficult to monitor the dynamic homing of BM-MNCs in living mice. The present study obtained the kinetics of transplanted BM-MNCs in the peripheral blood (PB) and the dynamic homing of BM-MNCs in the BM in living mice by a combination of in vivo flow cytometry (IVFC) and calvarium intravital microscopy. We found out that BM-MNCs were cleared rapidly from the PB and mainly localized to various hematopoietic tissues after transplantation. The number of BM-MNCs in the PB decreased over time accompanied by an increase in the BM indeed after transplantation. In addition, a lower number of BM-MNCs were found home to calvaria than long bone, probably indicating long bone marrow might also be an important hematopoietic organ. Clinical studies will benefit from non-invasive measurements to monitor the dynamic homing of transplanted cells. Our pre-clinical kinetics of BM-MNCs in living mice will have important clinical guiding significance in HSCT and other regenerative therapy fields.
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