This patent covers mesenchymal stem cells that are circulating in the blood. This patent is interesting since the cells covered contain the hematopoietic stem cell marker CD34, which is usually not believed to be expressed on mesenchymal stem cells. Additionally, the marker CD45, is usually a hematopoietic associated marker, but it too is also expressed on the mesenchymal stem cells that are described in this patent.
View this patent on the USPTO website.
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