Publications de Nathalie Hirt-Burri

Industrial Biotechnology Conservation Processes: Similarities with Natural Long-Term Preservation of Biological Organisms

Nathalie Hirt-Burri, Philippe Abdel Sayed, Corinne Scaletta, Lee Ann Laurent-Applegate, Laurent Alexis Clément Vannay, Alexis Laurent

Cryopreservation and lyophilization processes are widely used for conservation purposes in the pharmaceutical, biotechnological, and food industries or in medical transplantation. Such processes deal with extremely low temperatures (e.g., -196 degrees C) a ...

MDPI2023

Bio-Enhanced Neoligaments Graft Bearing FE002 Primary Progenitor Tenocytes: Allogeneic Tissue Engineering & Surgical Proofs-of-Concept for Hand Ligament Regenerative Medicine

Sandra Jaccoud, Nathalie Hirt-Burri, Philippe Abdel Sayed, Corinne Scaletta, Lee Ann Laurent-Applegate, Laurent Alexis Clément Vannay, Joachim Meuli, Cédric Peneveyre, Alexis Laurent, Annick Jeannerat, Axelle Thomas

Hand tendon/ligament structural ruptures (tears, lacerations) often require surgical reconstruction and grafting, for the restauration of finger mechanical functions. Clinical-grade human primary progenitor tenocytes (FE002 cryopreserved progenitor cell so ...

MDPI2023

Autologous and Allogeneic Cytotherapies for Large Knee (Osteo)Chondral Defects: Manufacturing Process Benchmarking and Parallel Functional Qualification

Sandra Jaccoud, Nathalie Hirt-Burri, Philippe Abdel Sayed, Corinne Scaletta, Salim Elias Darwiche, Cédric Peneveyre, Alexis Laurent, Annick Jeannerat, Robin Martin

Cytotherapies are often necessary for the management of symptomatic large knee (osteo)-chondral defects. While autologous chondrocyte implantation (ACI) has been clinically used for 30 years, allogeneic cells (clinical-grade FE002 primary chondroprogenitor ...

MDPI2023

Development of Standardized Fetal Progenitor Cell Therapy for Cartilage Regenerative Medicine: Industrial Transposition and Preliminary Safety in Xenogeneic Transplantation

Dominique Pioletti, Sandra Jaccoud, Nathalie Hirt-Burri, Philippe Abdel Sayed, Corinne Scaletta, Salim Elias Darwiche, Alexis Laurent

Diverse cell therapy approaches constitute prime developmental prospects for managing acute or degenerative cartilaginous tissue affections, synergistically complementing specific surgical solutions. Bone marrow stimulation (i.e., microfracture) remains a ...

2021

Efficient decellularization of equine tendon with preserved biomechanical properties and cytocompatibility for human tendon surgery indications

Dominique Pioletti, Nathalie Hirt-Burri, Lee Ann Laurent-Applegate, Anthony Grognuz, Cédric Peneveyre, Jens Antons, Pierre-Arnaud Aeberhard

Chronic and acute tendon injuries are frequent afflictions, for which treatment is often long and unsatisfactory. When facing extended injuries, matrices and scaffolds with sufficient biomechanical properties are required for surgical repair and could addi ...

2020

Decellularised tissues obtained by a CO2-philic detergent and supercritical CO2

Dominique Pioletti, Pierre-Etienne Bourban, Nathalie Hirt-Burri, Matteo Gregorio Modesto Marascio, Jens Antons, Pierre-Arnaud Aeberhard, Giulia Weissenberger

Tissue decellularisation has gained much attention in regenerative medicine as an alternative to synthetic materials. In decellularised tissues, biological cues can be maintained and provide cellular environments still unmet by synthetic materials. Supercr ...

2018

Human fetal bone cells in delivery systems for bone engineering

Dominique Pioletti, Sandra Jaccoud, Nathalie Hirt-Burri, Corinne Scaletta, Lee Ann Laurent-Applegate

The aim of this study was to culture human fetal bone cells (dedicated cell banks of fetal bone derived from 14 week gestation femurs) within both hyaluronic acid gel and collagen foam, to compare the biocompatibility of both matrices as potential delivery ...

Wiley-Blackwell2011

Biologicals and fetal cell therapy for wound healing and scar management

Dominique Pioletti, Nathalie Hirt-Burri, Corinne Scaletta, Lee Ann Laurent-Applegate

Few biopharmaceutical preparations developed from biologicals are available for tissue regeneration and scar management. When developing biological treatments with cellular therapy, selection of cell types and establishment of consistent cell banks are cru ...

2011

Chronic wound healing by fetal cell therapy may be explained by differential gene profiling observed in fetal versus old skin cells

Dominique Pioletti, Nathalie Hirt-Burri, Corinne Scaletta, Lee Ann Laurent-Applegate

Engineering of fetal tissue has a high potential for the treatment of acute and chronic wounds of the skin in humans as these cells have high expansion capacity under simple culture conditions and one organ donation can produce Master Cell Banks which can ...

2009

Whole-cell bioprocessing of human fetal cells for tissue engineering of skin

Dominique Pioletti, Nathalie Hirt-Burri, Corinne Scaletta, Lee Ann Laurent-Applegate

Current restrictions for human cell-based therapies have been related to technological limitations with regards to cellular proliferation capacity (simple culture conditions), maintenance of differentiated phenotype for primary human cell culture and trans ...

2009

Wound healing gene-family expression differences between fetal and foreskin cells used for bioengineered skin substitutes

Dominique Pioletti, Nathalie Hirt-Burri, Corinne Scaletta, Lee Ann Laurent-Applegate

For tissue engineering, several cell types and tissues have been proposed as starting material. Allogenic skin products available for therapeutic usage are mostly developed with cell culture and with foreskin tissue of young individuals. Fetal skin cells o ...

2008

Human muscular fetal cells: a potential cell source for muscular therapies

Dominique Pioletti, Nathalie Hirt-Burri, Corinne Scaletta

Myoblast transfer therapy has been extensively studied for a wide range of clinical applications, such as tissue engineering for muscular loss, cardiac surgery or Duchenne Muscular Dystrophy treatment. However, this approach has been hindered by numerous l ...

2008