Is a CD34+/CD45- cells the same as a CD34+ cell?
You know what, that's a great question, but CD34+ doesn't ensure CD45-, so I'd say they are different.
I found this article that explains it well...
http://vethospital.tamu.edu/small-animal-hospital/orthopedics/stem-cell-therapy-faqsIn the laboratory setting several methods are used to characterize MSCs. A procedure called flow cytometry is often used to determine the presence or absence of a specific group of surface marker proteins (similar to a cell fingerprint) that are often present on MSCs (Figure 3A). Colony Forming Unit (CFU) assays determine the ability of individual cells to generate a new colony of cells (Figure 3B). Differentiation assays are used to determine the ability of MSCs to transform into cells that resemble bone, cartilage, and fat forming cells (Figure 4). Interestingly, some cells that aren’t considered stem cells share many of these same characteristics. For this reason, the true measure of MSCs that separates them from other cells is their ability to form new bone, cartilage, and fat tissue when transplanted to a distant location, not in a laboratory setting, but in a living patient. Restoration of bone, cartilage, and fat in the living setting provides definitive proof that an individual cell is a true stem cell (MSC).
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