Intraoperative Strategies for Minimal Manipulation of Autologous Adipose Tissue for Cell- and Tissue-Based Therapies: Concise Review

Angelo Trivisonno, Robert W. Alexander, Silvia Baldari, Steven R. Cohen, Giuliana Di Rocco, Pietro Gentile, Guy Magalon, Jérémy Magalon, Randy B. Miller, Hayley Womack, Gabriele Toietta

Research output: Contribution to journalReview article

Abstract

The stromal vascular fraction (SVF) is a heterogeneous population of stem/stromal cells isolated from perivascular and extracellular matrix (ECM) of adipose tissue complex (ATC). Administration of SVF holds a strong therapeutic potential for regenerative and wound healing medicine applications aimed at functional restoration of tissues damaged by injuries or chronic diseases. SVF is commonly divided into cellular stromal vascular fraction (cSVF) and tissue stromal vascular fraction (tSVF). Cellular SVF is obtained from ATC by collagenase digestion, incubation/isolation, and pelletized by centrifugation. Enzymatic disaggregation may alter the relevant biological characteristics of adipose tissue, while providing release of complex, multiattachment of cell-to-cell and cell-to-matrix, effectively eliminating the bioactive ECM and periadventitial attachments. In many countries, the isolation of cellular elements is considered as a “more than minimal” manipulation, and is most often limited to controlled clinical trials and subject to regulatory review. Several alternative, nonenzymatic methods of adipose tissue processing have been developed to obtain via minimal mechanical manipulation an autologous tSVF product intended for delivery, reducing the procedure duration, lowering production costs, decreasing regulatory burden, and shortening the translation into the clinical setting. Ideally, these procedures might allow for the integration of harvesting and processing of adipose tissue for ease of injection, in a single procedure utilizing a nonexpanded cellular product at the point of care, while permitting intraoperative autologous cellular and tissue-based therapies. Here, we review and discuss the options, advantages, and limitations of the major strategies alternative to enzymatic processing currently developed for minimal manipulation of adipose tissue. Stem Cells Translational Medicine 2019;8:1265&1271.

Original languageEnglish
Pages (from-to)1265-1271
Number of pages7
JournalStem cells translational medicine
Volume8
Issue number12
DOIs
Publication statusPublished - Dec 1 2019

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Keywords

  • Adipose tissue
  • Adipose tissue-derived stromal and vascular fraction
  • Cell- and tissue-based therapy
  • Collagenase
  • Point-of-care systems
  • Regenerative medicine

ASJC Scopus subject areas

  • Developmental Biology
  • Cell Biology

Cite this

Trivisonno, A., Alexander, R. W., Baldari, S., Cohen, S. R., Di Rocco, G., Gentile, P., Magalon, G., Magalon, J., Miller, R. B., Womack, H., & Toietta, G. (2019). Intraoperative Strategies for Minimal Manipulation of Autologous Adipose Tissue for Cell- and Tissue-Based Therapies: Concise Review. Stem cells translational medicine, 8(12), 1265-1271. https://doi.org/10.1002/sctm.19-0166