Abstract
Recent progress in gene-editing technology has provided a strong impact for improved our understanding of molecular functions in living organisms. Here we describe our method to generate transgene-overexpressing mouse models, which method involves the use of tissue-specific promoters for analyzing a certain molecule (s) in special tissues. The protocol described in this chapter uses the Col2a1 promoter-enhancer, which is known for driving specific and strong transgene expression in cartilage and is based on several of our studies showing a positive role of the connective tissue growth factor (CCN2) in cartilage-bone development and maintenance of articular cartilage. These mice show strongly accelerated endochondral ossification resulting in enhanced bone elongation, as well as resistance to age-related articular degeneration. This protocol also describes how to analyze the molecular mechanisms of these phenomena by use of chondrocytes isolated from CCN2-overexpressing cartilage.
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Acknowledgements
We thank Drs. Benoit de Crombrugghe and Shunichi Murakami, UTMD Anderson Cancer Center for kindly supplying the 3 kb–3 kb Col2a1/pBS M2 and IRES-LacZ-SV40pA/pBS vectors. The authors also thank Drs. Satoshi Kubota and Takashi Nishida for useful suggestions, as well as Ms. Yoshiko Miyake and Ayako Ogo for technical and secretarial assistance. This study was supported by grants from the program Grants-in-aid for Scientific Research (B) [#JP24390415] and (B) [#JP15H05014] to M.T. and (C) (#JP254628889) to T.H. and a grant from the Japan Society and Foundation for Growth Science to T.H.
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Hattori, T., Itoh, S., Takigawa, M. (2017). Generation and Analysis of Cartilage-Specific CCN2 Overexpression in Transgenic Mice. In: Takigawa, M. (eds) CCN Proteins. Methods in Molecular Biology, vol 1489. Humana Press, New York, NY. https://doi.org/10.1007/978-1-4939-6430-7_32
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DOI: https://doi.org/10.1007/978-1-4939-6430-7_32
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