Intervertebral disc regeneration with an adipose mesenchymal stem cell-derived tissue-engineered construct in a rat nucleotomy model

Hiroyuki Ishiguro, Takashi Kaito, Seido Yarimitsu, Kunihiko Hashimoto, Rintaro Okada, Junichi Kushioka, Ryota Chijimatsu, Shota Takenaka, Takahiro Makino, Yusuke Sakai, Yu Moriguchi, Satoru Otsuru, David A. Hart, Hiromichi Fujie, Norimasa Nakamura, Hideki Yoshikawa

研究成果: ジャーナルへの寄稿学術誌査読

44 被引用数 (Scopus)

抄録

Low back pain results in more global disabilities than any other condition, and intervertebral disc (IVD) degeneration is commonly involved in the etiology. Supplementation of IVDs with reparative cells is a rational strategy to address such clinical problems. We have previously developed a scaffold-free tissue-engineered construct (TEC) as a novel cell therapy system for repair of articular cartilage and meniscus. We now show the regenerative potential of adipose mesenchymal stem cells derived TEC (ADSC-TEC) for IVD degeneration using a rat tail model of total nucleotomy. The regenerative efficacy of ASDC-TEC was investigated structurally and biomechanically up to 6 months after implantation. ADSC-TEC implantation into IVDs preserved the disc height, endplate, and annulus fibrosus structure, and showed similar biomechanical characteristics to the sham group at postoperative 6 weeks. The structure of regenerated IVD was maintained until 6 months. Furthermore, ADSC-TEC implantation attenuated the impact of age-related biomechanical deterioration when assessed at 6 months post-implantation. These results demonstrate that use of ADSC-TECs can be an effective treatment for IVD degeneration. Statement of significance: We developed adipose mesenchymal stem cell-derived scaffold-free tissue engineered construct (ADSC-TEC) as a novel cell therapy system. The ADSC-TEC implantation into a rat total-nucleotomized disc space regenerated intervertebral discs (IVDs) histologically and biomechanically. The regenerative capacity of the ADSC-TEC was exerted by its trophic effects on annulus fibrosus cells and the load-sharing effect at intervertebral space. Interestingly, the regenerated IVDs by the ADSC-TEC was less susceptible to the age-related deterioration than the IVDs of normal rats. Thus, the application of ADSC-TEC into the degenerated disc can be an alternative therapy for various disease associated with structural and functional failure of IVDs.

本文言語英語
ページ(範囲)118-129
ページ数12
ジャーナルActa Biomaterialia
87
DOI
出版ステータス出版済み - 3月 15 2019
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • バイオテクノロジー
  • 生体材料
  • 生化学
  • 生体医工学
  • 分子生物学

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