Volume 107, Issue 6 pp. 1937-1944
Original Research Report

Fabrication and characterization of the 3D-printed polycaprolactone/fish bone extract scaffolds for bone tissue regeneration

Seong-Yeong Heo

Seong-Yeong Heo

Department of Biomedical Engineering, and Center for Marine-Integrated Biomedical Technology (BK21 Plus), Pukyong National University, Busan, Republic of Korea

Marine-Integrated Bionics Research Center, Pukyong National University, Busan, Republic of Korea

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Seok-Chun Ko

Seok-Chun Ko

Marine-Integrated Bionics Research Center, Pukyong National University, Busan, Republic of Korea

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Gun-Woo Oh

Gun-Woo Oh

Department of Biomedical Engineering, and Center for Marine-Integrated Biomedical Technology (BK21 Plus), Pukyong National University, Busan, Republic of Korea

Marine-Integrated Bionics Research Center, Pukyong National University, Busan, Republic of Korea

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Namwon Kim

Namwon Kim

Ingram School of Engineering, Texas State University, San Marcos, Texas

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Il-Whan Choi

Il-Whan Choi

Department of Microbiology, Inje University College of Medicine, Busan, Republic of Korea

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Won Sun Park

Won Sun Park

Department of Physiology, Kangwon National University School of Medicine, Chuncheon, Republic of Korea

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Won-Kyo Jung

Corresponding Author

Won-Kyo Jung

Department of Biomedical Engineering, and Center for Marine-Integrated Biomedical Technology (BK21 Plus), Pukyong National University, Busan, Republic of Korea

Marine-Integrated Bionics Research Center, Pukyong National University, Busan, Republic of Korea

Correspondence to: W.-K. Jung; e-mail address: e-mail: [email protected]Search for more papers by this author
First published: 03 December 2018
Citations: 26

Abstract

Fish bone extract (FBE) containing a trioligopeptide (FBP-KSA, Lys-Ser-Ala) isolated from Johnius belengerii could induce osteogenic activities on MC3T3-E1 pre-osteoblasts in our previous study. Regarding the osteogenic effect of FBE, in the present study, we fabricated the three-dimensional (3D) interconnected polycaprolactone (PCL)/FBE scaffolds for bone tissue regeneration. After fabrication of PCL scaffolds using 3D printing, FBE was coated on the surface of PCL scaffolds by self-assembly process. In the physical characteristic and mechanical property tests, the results demonstrated that the fabricated scaffolds have the strut diameter (between 340 and 345 μm), pore size (between 470 and 480 μm), porosity (between 50% and 55%), and tensile properties (Young's modulus: 9.18–9.42 MPa; max tensile strengths 82.3–87.4 MPa) were similar to those of PCL scaffold. In the cell proliferation and osteogenic assay, the results showed that PCL/FBE scaffolds could significantly induce cell proliferation, calcium deposition, and the expression of osteogenic phenotype markers such as alkaline phosphatase, osteopontin, osteocalcin, and bone morphogenetic protein-2 in the osteoblasts. These results suggest that FBE-coated PCL scaffolds are promising materials for use in biomedical application to promote bone tissue regeneration. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 107B: 1937–1944, 2019.

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