[Mesenchymal stem cells: sources, phenotype, and differentiation potential].

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

• Level A · Stronger Clinical Evidence
• Level B · Emerging clinical evidence with positive signals
• Level C · Early human research exploring benefits
• Level D · Scientific groundwork from lab and animal studies
• Emerging · Emerging topic under active research

Abstract (original English)

Mesenchymal stem cells present in the bone marrow and some other organs are primitive pluripotent precursors of osseous, cartilaginous, adipose, and other mesenchymal tissues. The recently revealed capacity of these cells for differentiation into nonmesenchymal derivatives is of considerable theoretical and practical interest. However, many aspects of the biology of these cells remain obscure despite active research. This review considers possible sources and methods for the isolation of mesenchymal stem cells, their potential for proliferation and differentiation in different directions, and outlooks of their therapeutic application. A model of parent-progeny relationships of stromal cells is proposed, and the problems of regulation of proliferation and differentiation of mesenchymal precursors as well as their role in the maintenance of regeneration and tissue functioning are discussed.

Evidence level

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

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