Piezo type mechanosensitive ion channel component 1 functions as a regulator of the cell fate determination of mesenchymal stem cells

• Published in: Scientific reports Vol. 7; no. 1; pp. 17696 - 14
• Main Authors: Sugimoto, Asuna, Miyazaki, Aya, Kawarabayashi, Keita, Shono, Masayuki, Akazawa, Yuki, Hasegawa, Tomokazu, Ueda-Yamaguchi, Kimiko, Kitamura, Takamasa, Yoshizaki, Keigo, Fukumoto, Satoshi, Iwamoto, Tsutomu
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 18.12.2017; Nature Publishing Group
• Subjects: 13/95; 38/89; 45/77; 631/532/2074; 631/80/86/2366; 82/51; 96/100; Bone morphogenetic protein 2; Bone Morphogenetic Protein 2 - metabolism; Cell culture; Cell Culture Techniques - instrumentation; Cell Differentiation - drug effects; Cell Differentiation - physiology; Cell fate; Cell Line; Cells, Cultured - drug effects; Humanities and Social Sciences; Humans; Hydrostatic pressure; Hydrostatic Pressure - adverse effects; Ion Channels - metabolism; Mechanical loading; Mesenchymal stem cells; Mesenchymal Stem Cells - physiology; Mesenchyme; multidisciplinary; Noggin protein; Osteoblastogenesis; Osteogenesis - drug effects; Science; Science (multidisciplinary); Signal Transduction - drug effects; Skin & tissue grafts; Stem cells
• ISSN: 2045-2322; 2045-2322
• DOI: 10.1038/s41598-017-18089-0

The extracellular environment regulates the dynamic behaviors of cells. However, the effects of hydrostatic pressure (HP) on cell fate determination of mesenchymal stem cells (MSCs) are not clearly understood. Here, we established a cell culture chamber to control HP. Using this system, we found that the promotion of osteogenic differentiation by HP is depend on bone morphogenetic protein 2 (BMP2) expression regulated by Piezo type mechanosensitive ion channel component 1 (PIEZO1) in MSCs. The PIEZO1 was expressed and induced after HP loading in primary MSCs and MSC lines, UE7T-13 and SDP11. HP and Yoda1, an activator of PIEZO1, promoted BMP2 expression and osteoblast differentiation, whereas inhibits adipocyte differentiation. Conversely, PIEZO1 inhibition reduced osteoblast differentiation and BMP2 expression. Furthermore, Blocking of BMP2 function by noggin inhibits HP induced osteogenic maker genes expression. In addition, in an in vivo model of medaka with HP loading, HP promoted caudal fin ray development whereas inhibition of piezo1 using GsMTx4 suppressed its development. Thus, our results suggested that PIEZO1 is responsible for HP and could functions as a factor for cell fate determination of MSCs by regulating BMP2 expression.