Article ; Online: In Situ
ACS applied materials & interfaces
2023 Volume 15, Issue 36, Page(s) 42251–42270
Abstract: Dysfunctional clinical outcomes following spinal cord injury (SCI) result from glial scar formation, leading to the inhibition of new axon growth and impaired regeneration. Nevertheless, nerve regeneration after SCI is possible, provided that the state ... ...
Abstract | Dysfunctional clinical outcomes following spinal cord injury (SCI) result from glial scar formation, leading to the inhibition of new axon growth and impaired regeneration. Nevertheless, nerve regeneration after SCI is possible, provided that the state of neuron development in the injured environment is improved. Hence, biomaterial-based therapy would be a promising strategy to endow a desirable environment for tissue repair. Herein, we designed a novel multifunctional injectable hydrogel with antioxidant, neuroprotective, and neuroregenerative effects. Bucladesine-encapsulated chitosan nanoparticles (BCS NPs) were first prepared and embedded in a matrix of thiol-functionalized hyaluronic acid modified with ferulic acid (HASH-FA). The target hydrogel (HSP-F/BCS) was then created through Michael-type addition between HASH-FA containing BCS NPs and four-arm polyethylene glycol-maleimide (4-Arm-PEG-Mal). The obtained hydrogel with shear thinning behavior showed viscoelastic and mechanical properties similar to the normal nerve tissue. FA conjugation significantly improved the antioxidant activity of HA, and suppressed intracellular ROS formation. |
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MeSH term(s) | Animals ; Rats ; Bucladesine ; Axons ; Gliosis ; Spinal Cord Injuries/drug therapy ; Spinal Cord Regeneration ; Antioxidants/pharmacology ; Hydrogels/pharmacology |
Chemical Substances | ferulic acid (AVM951ZWST) ; Bucladesine (63X7MBT2LQ) ; Antioxidants ; Hydrogels |
Language | English |
Publishing date | 2023-08-30 |
Publishing country | United States |
Document type | Journal Article |
ISSN | 1944-8252 |
ISSN (online) | 1944-8252 |
DOI | 10.1021/acsami.3c08366 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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