How to isolate a ready-to-use adipose-derived stem cells pellet for clinical application

Adipose-derived stem cells (ASCs) are multipotent mesenchymal stem cells (MSCs) that show definitive stem cell characteristics such as plastic adherence in culture, ability to maintain multipotency upon in vitro expansion, and self-renewal capacity. ASCs are particularly promising for use in regenerative medicine because they can be harvested easily from adipose tissue by standard liposuction, with minimal donor site morbidity. Since ASCs do not necessitate ex vivo expansion to obtain clinically significant cell numbers, it is critical to identify a standardized method that maximizes the number of ASCs collected. Based on current literature, there is no standardized method to isolate ASCs for clinical application. Furthermore, clinical studies involving ASCs often show inconsistencies in the reported results. Such studies often use research-derived isolation protocols, which are complex, time-consuming, and involve the use of chemical and animal-derived reagents. In this paper, we present an in-depth review of the available data on ASC isolation protocols. Moreover, we describe our isolation protocol that allows the collection of a ready-to-use ASC pellet for clinical application.

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