کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1934251 1050636 2009 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Efficient labeling of mesenchymal stem cells using cell permeable magnetic nanoparticles
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
پیش نمایش صفحه اول مقاله
Efficient labeling of mesenchymal stem cells using cell permeable magnetic nanoparticles
چکیده انگلیسی

For the purpose of successfully monitoring labeled cells, optimum labeling efficiency without any side effect is a prerequisite. Magnetic cellular imaging is a new and growing field that allows the visualization of implanted cells in vivo. Herein, superparamagnetic iron oxide (SPIO) nanoparticles were conjugated with a non-toxic protein transduction domain (PTD), identified by the authors and termed low molecular weight protamine (LMWP), to generate efficient and non-toxic cell labeling tools. The cells labeled with LMWP–SPIO presented the highest iron content compared to those labeled with naked SPIO and the complex of SPIO with poly-l-lysine, which is currently used as a transfection agent. In addition to the iron content assay, Prussian staining and confocal observation demonstrated the highest intracellular LMWP–SPIO presence, and the labeling procedure did not alter the cell differentiation capacity of mesenchymal stem cells. Taken together, cell permeable magnetic nanoparticles conjugated with LMWP can be suggested as labeling tools for efficient magnetic imaging of transplanted cells.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical and Biophysical Research Communications - Volume 379, Issue 3, 13 February 2009, Pages 669–675
نویسندگان
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