Abstract: Many studies on adult stem cell is hot and frontier in recent years because of its biological characteristics and potential applicaton in medical care. As studies go on, recent progress in stem cell researches indicates that adult stem cells maintain a high degree of plasticity for multilineage cell differentiation in addition to self-renewing, high-proliferation and multidifferetiation. Here we review the latest advance, prospects and problems for plasticity of adult stem cell on the basis of recent developments. 

Key words: adult stem cell; plasticity; multi-differential potentialities; mechanisms of differentiation 