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Article

Rho-kinase regulates prostaglandin D2-stimulated heat shock protein 27 induction in osteoblasts

  • Authors:
    • Kenji Kato
    • Haruhiko Tokuda
    • Hideo Natsume
    • Seiji Adachi
    • Rie Matsushima-Nishiwaki
    • Chiho Minamitani
    • Jun Mizutani
    • Osamu Kozawa
    • Takanobu Otsuka
  • View Affiliations / Copyright

    Affiliations: Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya 467-8601, Japan
  • Pages: 579-583
    |
    Published online on: July 1, 2010
       https://doi.org/10.3892/etm_00000091
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Abstract

We previously reported that prostaglandin D2 (PGD2) stimulates heat shock protein 27 (HSP27) induction through p44/p42 mitogen-activated protein (MAP) kinase, p38 MAP kinase and stress-activated protein kinase/c-Jun N-terminal kinase (SAPK/JNK) in osteoblast-like MC3T3-E1 cells. In addition, we recently showed that PGD2 activates Rho-kinase, resulting in the regulation of interleukin-6 synthesis via activation of p38 MAP kinase but not p44/p42 MAP kinase in these cells. In the present study, in order to investigate whether Rho-kinase is involved in the PGD2-stimulated HSP27 induction in MC3T3-E1 cells, we examined the effects of Rho-kinase inhibitors on HSP27 induction. Y27632 and fasudil, Rho-kinase inhibitors, markedly suppressed the HSP27 induction stimulated by PGD2 in a dose-dependent manner without affecting levels of HSP70 in the presence of PGD2. Immunofluorescence microscopy studies also revealed that Y27632 and fasudil markedly suppressed the induction of HSP27. Y27632 and fasudil attenuated the PGD2-induced phosphorylation levels of SAPK/JNK. In conclusion, Rho-kinase inhibitors regulate PGD2-stimulated HSP27 induction via activation of both SAPK/JNK and p38 MAP kinase in osteoblasts.
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Copy and paste a formatted citation
Spandidos Publications style
Kato K, Tokuda H, Natsume H, Adachi S, Matsushima-Nishiwaki R, Minamitani C, Mizutani J, Kozawa O and Otsuka T: Rho-kinase regulates prostaglandin D2-stimulated heat shock protein 27 induction in osteoblasts . Exp Ther Med 1: 579-583, 2010.
APA
Kato, K., Tokuda, H., Natsume, H., Adachi, S., Matsushima-Nishiwaki, R., Minamitani, C. ... Otsuka, T. (2010). Rho-kinase regulates prostaglandin D2-stimulated heat shock protein 27 induction in osteoblasts . Experimental and Therapeutic Medicine, 1, 579-583. https://doi.org/10.3892/etm_00000091
MLA
Kato, K., Tokuda, H., Natsume, H., Adachi, S., Matsushima-Nishiwaki, R., Minamitani, C., Mizutani, J., Kozawa, O., Otsuka, T."Rho-kinase regulates prostaglandin D2-stimulated heat shock protein 27 induction in osteoblasts ". Experimental and Therapeutic Medicine 1.4 (2010): 579-583.
Chicago
Kato, K., Tokuda, H., Natsume, H., Adachi, S., Matsushima-Nishiwaki, R., Minamitani, C., Mizutani, J., Kozawa, O., Otsuka, T."Rho-kinase regulates prostaglandin D2-stimulated heat shock protein 27 induction in osteoblasts ". Experimental and Therapeutic Medicine 1, no. 4 (2010): 579-583. https://doi.org/10.3892/etm_00000091
Copy and paste a formatted citation
x
Spandidos Publications style
Kato K, Tokuda H, Natsume H, Adachi S, Matsushima-Nishiwaki R, Minamitani C, Mizutani J, Kozawa O and Otsuka T: Rho-kinase regulates prostaglandin D2-stimulated heat shock protein 27 induction in osteoblasts . Exp Ther Med 1: 579-583, 2010.
APA
Kato, K., Tokuda, H., Natsume, H., Adachi, S., Matsushima-Nishiwaki, R., Minamitani, C. ... Otsuka, T. (2010). Rho-kinase regulates prostaglandin D2-stimulated heat shock protein 27 induction in osteoblasts . Experimental and Therapeutic Medicine, 1, 579-583. https://doi.org/10.3892/etm_00000091
MLA
Kato, K., Tokuda, H., Natsume, H., Adachi, S., Matsushima-Nishiwaki, R., Minamitani, C., Mizutani, J., Kozawa, O., Otsuka, T."Rho-kinase regulates prostaglandin D2-stimulated heat shock protein 27 induction in osteoblasts ". Experimental and Therapeutic Medicine 1.4 (2010): 579-583.
Chicago
Kato, K., Tokuda, H., Natsume, H., Adachi, S., Matsushima-Nishiwaki, R., Minamitani, C., Mizutani, J., Kozawa, O., Otsuka, T."Rho-kinase regulates prostaglandin D2-stimulated heat shock protein 27 induction in osteoblasts ". Experimental and Therapeutic Medicine 1, no. 4 (2010): 579-583. https://doi.org/10.3892/etm_00000091
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