Tissue engineering, regenerative medicine, and rejuvenation in 2010: the role of adipose-derived stem cells.
ABSTRACT Facial rejuvenation is rapidly evolving sector in the field of facial aesthetics. There is a wide variety of dermal fillers and many more are in development. Over the past few years, the study of adult-derived stem cells has become a very active area of research. Adult stem cells are an attractive option for volume restoration and facial rejuvenation. Adult stem cells are isolated from adipose tissue-adipose derived stem cells and have mesodermal, ectodermal, and endodermal potentials. Adipose-derived stem cells could conceivably be an alternative to pluripotent embryonic stem cells and could play a critical role in the rapidly expanding fields of tissue engineering and regenerative medicine. This article reviews the history of soft tissue augmentation using adipose tissue grafting and the advent of using adipose-derived stem cells. The state-of-the-art stem cell isolation technique as well as anticipated future therapeutic indications are also addressed.
- SourceAvailable from: Nivaldo Alonso[show abstract] [hide abstract]
ABSTRACT: Adipose tissue-derived stem cells (ASCs) association to fat in autologous lipotransfer is promising for a more effective soft tissue reconstruction, and optimization of protocols to isolate ASCs from lipoaspirate fat is much needed. We demonstrated that an increase in adipocyte differentiation is dependent on the number of ASCs. In a sample of 10 donors, we found a higher concentration of nucleated cells in the lower abdomen compared to flank (P = 0.015). In a sample of 6 donors we did not find differences in the cell yield obtained by manual or pump-assisted aspiration (P = 0.56). We suggest that the increase in the number of ASCs in the reinjected fat may enhance the efficiency of newly formed adipose tissue and that the anatomical region from which to harvest fat tissue needs to be considered to optimize the number of ASCs in the harvested tissue. Finally, pump-assisted aspiration can be used without any significant harm to the viability of cells.Stem cells international. 01/2012; 2012:303610.