Journal
JOURNAL OF BIOMATERIALS APPLICATIONS
Volume 33, Issue 8, Pages 1118-1127Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/0885328218820180
Keywords
Tilapia skin collagen; micro/nanofiber; biocompatibility; immunogenicity; biosafety
Funding
- National Major Research Program of China [2016YFA0201702, 2016YFA0201700]
- National Nature Science Foundation [31470941, 31771023]
- Science and Technology Commission of Shanghai Municipality [15JC1490100, 15441905100]
- Science and Technology Project of Yantai [2015JH009]
- Yantai Double Hundred Talent Plan
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Type I collagen, used as a raw material, plays a pivotal role in the development of medical devices and tissue engineering. Due to the risk of zoonotic transmission and religious constraints for mammalian collagen, fish collagen gains increased attention and is widely seen as an alternative. In this study, two collagen micro/nanofiber materials, self-assembled collagen nanofiber and electrospun collagen nanofiber, were prepared by tilapia skin collagen and their biocompatibility and immunogenicity was thoroughly investigated. The result revealed that the state of tilapia skin collagen in self-assembled collagen nanofiber and electrospun collagen nanofiber was different. The circular dichroism spectrum indicated that collagen in self-assembled collagen nanofiber retained the triple helical structure of the native collagen, while collagen in electrospun collagen nanofiber was denatured into gelatin. Nevertheless, the evaluation according to ISO10993, including tests of cytotoxicity, hemolysis, skin sensitization, acute systemic toxicity, mouse immunization and lymphocyte proliferation, demonstrated good biocompatibility and low immunogenicity for both self-assembled and electrospun collagen nanofiber materials. Overall, the present study highlighted that type I collagen from tilapia skin would be a promising biomaterial for the development of regenerate medical products.
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