Within or Without You? A Perspective Comparing In Situ and Ex Situ Tissue Engineering Strategies for Articular Cartilage Repair

© 2022 The Authors. Advanced Healthcare Materials published by Wiley-VCH GmbH..

Human articular cartilage has a poor ability to self-repair, meaning small injuries often lead to osteoarthritis, a painful and debilitating condition which is a major contributor to the global burden of disease. Existing clinical strategies generally do not regenerate hyaline type cartilage, motivating research toward tissue engineering solutions. Prospective cartilage tissue engineering therapies can be placed into two broad categories: i) Ex situ strategies, where cartilage tissue constructs are engineered in the lab prior to implantation and ii) in situ strategies, where cells and/or a bioscaffold are delivered to the defect site to stimulate chondral repair directly. While commonalities exist between these two approaches, the core point of distinction-whether chondrogenesis primarily occurs "within" or "without" (outside) the body-can dictate many aspects of the treatment. This difference influences decisions around cell selection, the biomaterials formulation and the surgical implantation procedure, the processes of tissue integration and maturation, as well as, the prospects for regulatory clearance and clinical translation. Here, ex situ and in situ cartilage engineering strategies are compared: Highlighting their respective challenges, opportunities, and prospects on their translational pathways toward long term human cartilage repair.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:11

Enthalten in:

Advanced healthcare materials - 11(2022), 24 vom: 01. Dez., Seite e2201305

Sprache:

Englisch

Beteiligte Personen:

O'Connell, Cathal D [VerfasserIn]
Duchi, Serena [VerfasserIn]
Onofrillo, Carmine [VerfasserIn]
Caballero-Aguilar, Lilith M [VerfasserIn]
Trengove, Anna [VerfasserIn]
Doyle, Stephanie E [VerfasserIn]
Zywicki, Wiktor J [VerfasserIn]
Pirogova, Elena [VerfasserIn]
Di Bella, Claudia [VerfasserIn]

Links:

Volltext

Themen:

3D bioprinting
Biocompatible Materials
Biomaterials
Cartilage tissue engineering
In situ tissue engineering
Journal Article
Research Support, Non-U.S. Gov't
Stem cells

Anmerkungen:

Date Completed 23.12.2022

Date Revised 27.01.2023

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1002/adhm.202201305

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM350533415