Abstract
A RGD (Arg-Gly-Asp) conjugated chitosan hydrogel was used as a cell-supporting scaffold for articular cartilage regeneration. Thermosensitive chitosan-Pluronic (CP) has potential biomedical applications on account of its biocompatibility and injectability. A RGD-conjugated CP (RGD-CP) copolymer was prepared by coupling the carboxyl group in the peptide with the residual amine group in the CP copolymer. The chemical structure of RGDCP was characterized by1H NMR and FT IR. The concentration of conjugated RGD was quantified by amino acid analysis (AAA) and rheology of the RGD-CP hydrogel was investigated. The amount of bound RGD was 0.135 μg per 1 mg of CP copolymer. The viscoelastic parameters of RGD-CP hydrogel showed thermo-sensitivity and suitable mechanical strength at body temperature for cell scaffolds (a > 100 kPa storage modulus). The viability of the bovine chondrocyte and the amount of synthesized glycosaminoglycans (GAGs) on the RGD-CP hydrogels were evaluated together with the alginate hydrogels as a control over a 14 day period. Both results showed that the RGDCP hydrogel was superior to the alginate hydrogel. These results show that conjugating RGD to CP hydrogels improves cell viability and proliferation, including extra cellular matrix (ECM) expression. Therefore, RGD conjugated CP hydrogels are quite suitable for a chondrocyte culture and have potential applications to the tissue engineering of articular cartilage tissue.
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H. S. Park, J. S. Temenoff, T. A. Holland, Y. Tabata, and A. G. Mikos,Biomaterials,26, 7095 (2005).
M. Brittberg, A. Lindahl, A. Nilsson, C. Ohlsson, O. Isaksson, and L. Peterson,New. Engl. J. Med.,331, 889 (1994).
E. Bel, B. Ivarsson, and C. Merrill,Proc. Natl. Acad. Sci. USA,76, 1274 (1979).
J. F. Hansbrough, D. Christine, and W. B. Hansbrough,J. Burn. Care. Rehabil.,13, 519 (1992).
G. Khang, J. M. Rhee, P. Shin, I. Y. Kim, B. Lee, S. J. Lee, Y. M. Lee, H. B. Lee, and I. Lee,Macromol. Res.,10, 158 (2002).
J. S. Park, J. M. Kim, S. J. Lee, S. G. Lee, Y. K. Jeong, S. E. Kim, and S. C. Lee,Macromol. Res.,15, 424 (2007).
H. S. Kim, J. T. Kim, Y. J. Jung, S. C. Ryu, H. J. Son, and Y. G. Kim,Macromol. Res.,15, 65 (2007).
S. H. Lim, Y. Son, C. H. Kim, H. Shin, and J. I. Kim,Macromol. Res.,15, 370 (2007).
B. L. Seal, T. C. Otero, and A. Panitch,Mater. Sci. Eng.,R34, 147 (2001).
Q. Hu, B. Li, M. Wang, and J. Shen,Biomaterials,25, 779 (2004).
M. V. Risbud and R. R. Bhonde,Drug. Deliv.,7, 69 (2000).
K. S. Chow and E. Khor,Biomacromolecules,1, 61 (2000).
D. M. Albert, S. Michael, and V. R. Makarand,Biomaterials,26, 5983 (2005).
M. Tatsuya, I. Norimasa, Y. Shintaro, F. Tadanao, M. Tokifumi, M. Akio, O. Noriko, O. Takashi, and N. Shin-Ichiro,Biomaterials,26, 5339 (2005).
M. D. Pierschbacher and E. Ruoslahti,Nature,309, 30 (1984).
E. Ruoslahti and M. D. Pierschbacher,Science,238, 491 (1987).
S. P. Massia and J. A. Hubbell,Anal. Biochem.,187, 292 (1990).
H. B. Lin, W. Sun, D. F. Mosher, C. Garcia-Echeverria, K. Schaufelberger, P. I. Lelkes, and S. L. Cooper,J. Biomed. Mater. Res.,28, 329 (1994).
J. Graf, Y. Iwamoto, M. Sasaki, G. R. Martin, R. K. Kleinman, F. A. Robey, and Y. Yamada,Cell,48, 989 (1987).
S. Jo, P. S. Engel, and A. G. Mikos,Polymer,41, 7595 (2000).
K. J. Jung, K. D. Ahn, D. K. Han, and D. J. Ahn,Macromol. Res.,13, 446 (2005).
H. Ming-Hua, W. Da-Ming, H. Hsyue-Jen, L. Hwa-Chang, H. Tzu-Yang, L. Juin-Yoh, and H. Lein-Tuan,Biomaterials,26, 3197 (2005).
B. A. Jason and A. S. Kristi,Biomaterials,23, 4315 (2002).
H. J. Chung, D. H. Go, J. W. Bae, I. K. Jung, J. W. Lee, and K. D. Park,Curr. Appl. Phys.,5, 485 (2005).
H. Ulrich, D. Claudia, and K. Horst,Biomaterials,24, 4385 (2003).
A. Martinez-Ruvalcaba, E. Chornet, and D. Rodrigue,Carbohyd. Polym.,67, 586 (2007).
D. R. Nisbet, K. E. Crompton, S. D. Hamilton, S. Shirakawa, R. J. Prankerd, D. I. Finkelstein, M. K. Horne, and J. S. Forsythe,Biophys. Chem.,121, 14 (2006).
C. Qing, W. Yuqing, B. Jianzhong, and W. Shenguo,Biomaterials,24, 3555 (2003).
D. L. Pavia, G. M. Lampman, and G. S. Kriz, Introduction to Spectroscopy, Second edition, Saunders College Publishing, 1979, pp. 81–84.
R. Jin, C. Hiemstra, Z. Zhong, and J. Feijen,Biomaterials,28, 2791 (2007).
X. Jia, J. A. Burdick, J. Kobler, R. J. Clifton, J. J. Rosowski, S. M. Zeitels, and R. Langer,Macromolecules,37, 3239 (2004).
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Park, K.M., Joung, Y.K., Park, K.D. et al. RGD-Conjugated chitosan-pluronic hydrogels as a cell supported scaffold for articular cartilage regeneration. Macromol. Res. 16, 517–523 (2008). https://doi.org/10.1007/BF03218553
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DOI: https://doi.org/10.1007/BF03218553