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Understanding the individual timeline of stem cell differentiation in vivo is critical for evaluating stem cell properties in animal models. However, with conventional ex vivo techniques, such as histology, the individual timeline of differentiation is not accessible. Therefore, we designed lentiviral plasmids with cell-specific promoters to control the expression of bioluminescence and fluorescence imaging reporters. Promoter-dependent reporter expression in transduced human induced pluripotent stem cell-derived neural progenitor cells (hNPCs) was an effective indicator of differentiation in cell culture. A 12-week in vivo imaging observation period revealed the time profile of differentiation of engrafted hNPCs in the mouse brain into astrocytes and mature neurons which was verified by immunostainings, patch-clamp electrophysiology, and light-sheet fluorescence microscopy. The lentiviral vectors validated in this study provide an efficient imaging toolbox for non-invasive and longitudinal characterization of stem cell differentiation, in vitro screenings, and in vivo studies of cell therapy in animal models.
This article was published in the following journal.
Name: Stem cell research
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A type VI intermediate filament protein expressed mostly in nerve cells where it is associated with the survival, renewal and mitogen-stimulated proliferation of neural progenitor cells.
The cells in the erythroid series derived from MYELOID PROGENITOR CELLS or from the bi-potential MEGAKARYOCYTE-ERYTHROID PROGENITOR CELLS which eventually give rise to mature RED BLOOD CELLS. The erythroid progenitor cells develop in two phases: erythroid burst-forming units (BFU-E) followed by erythroid colony-forming units (CFU-E); BFU-E differentiate into CFU-E on stimulation by ERYTHROPOIETIN, and then further differentiate into ERYTHROBLASTS when stimulated by other factors.
Human colonic ADENOCARCINOMA cells that are able to express differentiation features characteristic of mature intestinal cells, such as ENTEROCYTES. These cells are valuable in vitro tools for studies related to intestinal cell function and differentiation.
Lymphocyte progenitor cells that are restricted in their differentiation potential to the T lymphocyte lineage.
Stem cells derived from HEMATOPOIETIC STEM CELLS. Derived from these myeloid progenitor cells are the MEGAKARYOCYTES; ERYTHROID CELLS; MYELOID CELLS; and some DENDRITIC CELLS.
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