Biomedical applications of silk and its role for intervertebral disc repair

Abstract Intervertebral disc (IVD) degeneration (IDD) is the main contributor to chronic low back pain. To date, the present therapies mainly focus on treating the symptoms caused by IDD rather than addressing the problem itself. For this reason, researchers have searched for a suitable biomaterial...

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Main Authors: Andreas S. Croft, Eugenia Spessot, Promita Bhattacharjee, Yuejiao Yang, Antonella Motta, Michael Wöltje, Benjamin Gantenbein
Format: Article
Language:English
Published: Wiley 2022-12-01
Series:JOR Spine
Subjects:
Online Access:https://doi.org/10.1002/jsp2.1225
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author Andreas S. Croft
Eugenia Spessot
Promita Bhattacharjee
Yuejiao Yang
Antonella Motta
Michael Wöltje
Benjamin Gantenbein
author_facet Andreas S. Croft
Eugenia Spessot
Promita Bhattacharjee
Yuejiao Yang
Antonella Motta
Michael Wöltje
Benjamin Gantenbein
author_sort Andreas S. Croft
collection DOAJ
description Abstract Intervertebral disc (IVD) degeneration (IDD) is the main contributor to chronic low back pain. To date, the present therapies mainly focus on treating the symptoms caused by IDD rather than addressing the problem itself. For this reason, researchers have searched for a suitable biomaterial to repair and/or regenerate the IVD. A promising candidate to fill this gap is silk, which has already been used as a biomaterial for many years. Therefore, this review aims first to elaborate on the different origins from which silk is harvested, the individual composition, and the characteristics of each silk type. Another goal is to enlighten why silk is so suitable as a biomaterial, discuss its functionalization, and how it could be used for tissue engineering purposes. The second part of this review aims to provide an overview of preclinical studies using silk‐based biomaterials to repair the inner region of the IVD, the nucleus pulposus (NP), and the IVD's outer area, the annulus fibrosus (AF). Since the NP and the AF differ fundamentally in their structure, different therapeutic approaches are required. Consequently, silk‐containing hydrogels have been used mainly to repair the NP, and silk‐based scaffolds have been used for the AF. Although most preclinical studies have shown promising results in IVD‐related repair and regeneration, their clinical transition is yet to come.
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spelling doaj.art-fd00972a6048487793927869b534532f2022-12-29T15:44:04ZengWileyJOR Spine2572-11432022-12-0154n/an/a10.1002/jsp2.1225Biomedical applications of silk and its role for intervertebral disc repairAndreas S. Croft0Eugenia Spessot1Promita Bhattacharjee2Yuejiao Yang3Antonella Motta4Michael Wöltje5Benjamin Gantenbein6Tissue Engineering for Orthopaedic & Mechanobiology, Bone & Joint Program, Department for BioMedical Research (DBMR), Medical Faculty University of Bern Bern SwitzerlandDepartment of Industrial Engineering and BIOtech Research Center University of Trento Trento ItalyDepartment of Chemical Sciences SSPC the Science Foundation Ireland Research Centre for Pharmaceuticals, Bernal Institute, University of Limerick Limerick IrelandDepartment of Industrial Engineering and BIOtech Research Center University of Trento Trento ItalyDepartment of Industrial Engineering and BIOtech Research Center University of Trento Trento ItalyInstitute of Textile Machinery and High Performance Material Technology Dresden GermanyTissue Engineering for Orthopaedic & Mechanobiology, Bone & Joint Program, Department for BioMedical Research (DBMR), Medical Faculty University of Bern Bern SwitzerlandAbstract Intervertebral disc (IVD) degeneration (IDD) is the main contributor to chronic low back pain. To date, the present therapies mainly focus on treating the symptoms caused by IDD rather than addressing the problem itself. For this reason, researchers have searched for a suitable biomaterial to repair and/or regenerate the IVD. A promising candidate to fill this gap is silk, which has already been used as a biomaterial for many years. Therefore, this review aims first to elaborate on the different origins from which silk is harvested, the individual composition, and the characteristics of each silk type. Another goal is to enlighten why silk is so suitable as a biomaterial, discuss its functionalization, and how it could be used for tissue engineering purposes. The second part of this review aims to provide an overview of preclinical studies using silk‐based biomaterials to repair the inner region of the IVD, the nucleus pulposus (NP), and the IVD's outer area, the annulus fibrosus (AF). Since the NP and the AF differ fundamentally in their structure, different therapeutic approaches are required. Consequently, silk‐containing hydrogels have been used mainly to repair the NP, and silk‐based scaffolds have been used for the AF. Although most preclinical studies have shown promising results in IVD‐related repair and regeneration, their clinical transition is yet to come.https://doi.org/10.1002/jsp2.1225Bombyx moridegenerationfunctionalizationintervertebral disclow back painregeneration
spellingShingle Andreas S. Croft
Eugenia Spessot
Promita Bhattacharjee
Yuejiao Yang
Antonella Motta
Michael Wöltje
Benjamin Gantenbein
Biomedical applications of silk and its role for intervertebral disc repair
JOR Spine
Bombyx mori
degeneration
functionalization
intervertebral disc
low back pain
regeneration
title Biomedical applications of silk and its role for intervertebral disc repair
title_full Biomedical applications of silk and its role for intervertebral disc repair
title_fullStr Biomedical applications of silk and its role for intervertebral disc repair
title_full_unstemmed Biomedical applications of silk and its role for intervertebral disc repair
title_short Biomedical applications of silk and its role for intervertebral disc repair
title_sort biomedical applications of silk and its role for intervertebral disc repair
topic Bombyx mori
degeneration
functionalization
intervertebral disc
low back pain
regeneration
url https://doi.org/10.1002/jsp2.1225
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