Optimized Manufacture of Lyophilized Dermal Fibroblasts for Next-Generation Off-the-Shelf Progenitor Biological Bandages in Topical Post-Burn Regenerative Medicine.

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State: Public
Version: Final published version
License: CC BY 4.0
Serval ID
serval:BIB_4C8CFF2F5FAC
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Optimized Manufacture of Lyophilized Dermal Fibroblasts for Next-Generation Off-the-Shelf Progenitor Biological Bandages in Topical Post-Burn Regenerative Medicine.
Journal
Biomedicines
Author(s)
Laurent A., Scaletta C., Abdel-Sayed P., Michetti M., Flahaut M., Simon J.P., Roessingh A.B., Raffoul W., Hirt-Burri N., Applegate L.A.
ISSN
2227-9059 (Print)
ISSN-L
2227-9059
Publication state
Published
Issued date
23/08/2021
Peer-reviewed
Oui
Volume
9
Number
8
Pages
1072
Language
english
Notes
Publication types: Journal Article
Publication Status: epublish
Abstract
Cultured fibroblast progenitor cells (FPC) have been studied in Swiss translational regenerative medicine for over two decades, wherein clinical experience was gathered for safely managing burns and refractory cutaneous ulcers. Inherent FPC advantages include high robustness, optimal adaptability to industrial manufacture, and potential for effective repair stimulation of wounded tissues. Major technical bottlenecks in cell therapy development comprise sustainability, stability, and logistics of biological material sources. Herein, we report stringently optimized and up-scaled processing (i.e., cell biobanking and stabilization by lyophilization) of dermal FPCs, with the objective of addressing potential cell source sustainability and stability issues with regard to active substance manufacturing in cutaneous regenerative medicine. Firstly, multi-tiered FPC banking was optimized in terms of overall quality and efficiency by benchmarking key reagents (e.g., medium supplement source, dissociation reagent), consumables (e.g., culture vessels), and technical specifications. Therein, fetal bovine serum batch identity and culture vessel surface were confirmed, among other parameters, to largely impact harvest cell yields. Secondly, FPC stabilization by lyophilization was undertaken and shown to maintain critical functions for devitalized cells in vitro, potentially enabling high logistical gains. Overall, this study provides the technical basis for the elaboration of next-generation off-the-shelf topical regenerative medicine therapeutic products for wound healing and post-burn care.
Keywords
General Biochemistry, Genetics and Molecular Biology, Medicine (miscellaneous), biotechnology, cell biobanking, cell therapies, lyophilization, manufacturing optimization, organ donation, regenerative medicine, skin fibroblast progenitor cells, standardized transplants, wound healing
Pubmed
Web of science
Open Access
Yes
Create date
27/08/2021 9:59
Last modification date
15/01/2022 8:09
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