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CCN Proteins pp 533-542 | Cite as

An Analysis of Pathological Activities of CCN Proteins in Joint Disorders: Mechanical Stretch-Mediated CCN2 Expression in Cultured Meniscus Cells

  • Takayuki Furumatsu
  • Toshifumi Ozaki
Protocol
Part of the Methods in Molecular Biology book series (MIMB, volume 1489)

Abstract

The multifunctional growth factor CYR61/CTGF/NOV (CCN) 2, also known as connective tissue growth factor, regulates cellular proliferation, differentiation, and tissue regeneration. Recent literatures have described important roles of CCN2 in the meniscus metabolism. However, the mechanical stress-mediated transcriptional regulation of CCN2 in the meniscus remains unclear. The meniscus is a fibrocartilaginous tissue that controls complex biomechanics of the knee joint. Therefore, the injured unstable meniscus has a poor healing potential especially in the avascular inner region. In addition, dysfunction of the meniscus correlates with the progression of degenerative knee joint disorders and joint space narrowing. Here, we describe an experimental approach that investigates the distinct cellular behavior of inner and outer meniscus cells in response to mechanical stretch. Our experimental model can analyze the relationships between stretch-induced CCN2 expression and its functional role in the meniscus homeostasis.

Key words

CCN2 Meniscus Meniscus cells Mechanical stretch Transcriptional regulation 

Notes

Acknowledgements

We thank Dr. Masaharu Takigawa and Dr. Satoshi Kubota for their kind assistance.

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Copyright information

© Springer Science+Business Media New York 2017

Authors and Affiliations

  1. 1.Department of Orthopaedic SurgeryOkayama University Graduate SchoolOkayamaJapan

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