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J Biomed Mater Res B Appl Biomater. 2018 May;106(4):1524-1533. doi: 10.1002/jbm.b.33959. Epub 2017 Jul 25.

In vivo comparison of jellyfish and bovine collagen sponges as prototype medical devices.

Author information

1
Jellagen Pty Ltd, Unit G5, Capital Business Park, Cardiff, UK.
2
Biomaterials, Biofouling and Biofilms Engineering Laboratory (B3EL), The Systems and Process Engineering Centre (SPEC), Swansea University, Swansea, UK.
3
KWS Biotest Ltd, Bristol, UK.

Abstract

Jellyfish have emerged as a source of next generation collagen that is an attractive alternative to existing sources, such as bovine and porcine, due to a plentiful supply and providing a safer source through lack of bovine spongiform encephalopathy (BSE) transmission risk and potential viral vectors, both of which could be transmitted to humans. Here we compare collagen implantable sponges derived for the first time from the Rhizostoma pulmo jellyfish. A further novelty for the research was that there was a comparison for sponges that were either uncrosslinked or crosslinked using 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide hydrochloride (EDC), and an assessment on how this affected resorption, as well as their biocompatibility compared to bovine type I collagen sponges. The scaffolds were prepared and examined using sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS PAGE) and scanning electron microscopy (SEM). The samples were implanted in adult male Wistar rats for in vivo experimentation. Both crosslinked and uncrosslinked jellyfish collagen sponges showed a significant reduction in histopathology scores over the course of the study, whereas the bovine collagen sponge scores were not significantly reduced. Both jellyfish collagen sponges and the bovine sponge were tolerated well by the hosts, and a recovery was visible in all samples, suggesting that R. pulmo jellyfish-derived collagen could offer compelling biocompatibility with wound healing applications. We also demonstrate that noncrosslinked samples could be safer with better resorption times than crosslinked samples.

KEYWORDS:

biomaterials; collagen implantation; in vivo; jellyfish collagen; regenerative medicine

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