Bioprinting collagenase-responsive hydrogel for controlled release of cowpea mosaic virus immunotherapy.
Published Web Location
https://iopscience.iop.org/article/10.1088/1758-5090/ae37de/pdf
Abstract
In this work, we developed a collagenase-responsive hydrogel system to covalently load cancer immunotherapy candidate cowpea mosaic virus (CPMV) using 3D Digital Light Processing (DLP) bioprinting technology. CPMV was functionalized with norbornene groups (CPMV-NB), which was then bioprinted into hydrogels with 8-arm polyethylene glycol (PEG) norbornene and a collagenase-cleavable peptide via photoinduced thiol-ene click chemistry. This strategy enabled stable retention of CPMV-NB within the hydrogels and achieved controlled release of CPMV-NB triggered by collagenase. Furthermore, released CPMV-NB retained its immunogenicity to stimulate immune cells.
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