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

Authors
  • Trivisonno, Angelo1
  • Alexander, Robert W2
  • Baldari, Silvia3, 4
  • Cohen, Steven R5
  • Di Rocco, Giuliana3
  • Gentile, Pietro6
  • Magalon, Guy7
  • Magalon, Jérémy8, 9
  • Miller, Randy B10
  • Womack, Hayley5
  • Toietta, Gabriele3
  • 1 Department of Surgical Science, University of Rome "La Sapienza", Rome, Italy. , (Italy)
  • 2 Department of Surgery, University of Washington, Seattle, Washington, USA.
  • 3 Department of Research, Advanced Diagnostic and Technological Innovation, IRCCS Regina Elena National Cancer Institute, Rome, Italy. , (Italy)
  • 4 Department of Medical Surgical Sciences and Biotechnologies, University of Rome "La Sapienza", Latina, Italy. , (Italy)
  • 5 FACES+ Plastic Surgery, Skin and Laser Center and the University of California, San Diego, California, USA.
  • 6 Department of Plastic and Reconstructive Surgery, University of Rome Tor Vergata, Rome, Italy. , (Italy)
  • 7 Plastic Surgery Department, Assistance Publique Hôpitaux de Marseille (APHM), Aix Marseille University, Marseille, France. , (France)
  • 8 Vascular Research Center of Marseille, Aix Marseille University, INSERM UMR 1076, Marseille, France. , (France)
  • 9 Cell Therapy Laboratory, CBT-1409, INSERM, Assistance Publique Hôpitaux de Marseille, Marseille, France. , (France)
  • 10 Private Practice, Miami, Florida, USA.
Type
Published Article
Journal
Stem Cells Translational Medicine
Publisher
Wiley (John Wiley & Sons)
Publication Date
Dec 01, 2019
Volume
8
Issue
12
Pages
1265–1271
Identifiers
DOI: 10.1002/sctm.19-0166
PMID: 31599497
Source
Medline
Keywords
Language
English
License
Unknown

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. © 2019 The Authors. Stem Cells Translational Medicine published by Wiley Periodicals, Inc. on behalf of AlphaMed Press.

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