Osmotic stress transcription factor 1b (Ostf1b) promotes migration properties with the modulation of epithelial mesenchymal transition (EMT) phenotype in human embryonic kidney cell

K. P. Lai, Alice Y.S. Law, Marco C.C. Lau, Y. Takei, William K.F. Tse, Chris K.C. Wong

研究成果: Contribution to journalArticle査読

9 被引用数 (Scopus)

抄録

Osmoregulation is an essential mechanism for euryhaline fish. Gill cells undergo rapid mechanism to maintain the cellular homeostasis during osmotic stress. Reports have suggested that gill cells may be able to migrate between primary filament and secondary lamella during seawater acclimination. However, the factor that can trigger such process is not well-known. Previously, we identified the osmotic stress transcription factor 1b (Ostf1b) in medaka and found that it is an early hypertonic responsive gene and can activate the c-Jun N-terminal kinase (JNK) pathway. In this report, we aim to know if Ostf1b plays the role in the migration. Ostf1b was ectopic expressed in the human embryonic kidney cell line (HEK293) to understand the Ostf1b function. Results clearly demonstrated that Ostf1b could constitutively activate the Rho kinase 1 (ROCK1) and myosin light chain 2 (MLC2) signalling pathway that promotes cell migration, epithelial mesenchymal transition (EMT) and cytoskeletal dynamics through stress fibre formation. The study supports the notion of cell migration and cytoskeleton rearrangement theories in osmoregulation.

本文言語英語
ページ(範囲)1921-1926
ページ数6
ジャーナルInternational Journal of Biochemistry and Cell Biology
45
8
DOI
出版ステータス出版済み - 2013
外部発表はい

All Science Journal Classification (ASJC) codes

  • 生化学
  • 細胞生物学

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