Human Mesenchymal Stromal Cells from Different Sources Diverge in Their Expression of Cell Surface Proteins and Display Distinct Differentiation Patterns

Table 1

Overview of studies published regarding MSCs using the term “stem cell” or “stromal cell” in the last 20 years accessed by a web search in July 2015 (Google Scholar). It seems that the term “stem cell” became more popular although the “stemness” was only shown in a more strict sense for MSCs involved in osteogenesis and bone repair.

Search	Hits	Hits
Year	MSC as “stem” cell	MSC as “stromal” cell
1995–2000	12,000	12,100
2000–2005	41,000	21,700
2005–2010	156,000	38,200
2010–2015	148,000	33,600