Power-Assisted Liposuction Versus Tissue Resection for the Isolation of Adipose Tissue-Derived Mesenchymal Stem Cells: Phenotype, Senescence, and Multipotency at Advanced Passages.

Background: Adipose tissue-derived mesenchymal stem cells (ASCs) can be isolated from subcutaneous fat harvested by tissue resection or liposuction.

Objectives: The authors compared ASCs isolated by tissue resection or power-assisted liposuction (PAL) to determine whether either surgical procedure yielded ASCs with improved purity and competence that was preserved for several passages.

Methods: For this experimental study, ASCs were isolated from fat harvested by tissue resection or PAL from six patients who underwent abdominoplasty.