TY - JOUR
T1 - Exogenous nitric oxide stimulates the odontogenic differentiation of rat dental pulp stem cells
AU - Sonoda, Soichiro
AU - Mei, Yu Feng
AU - Atsuta, Ikiru
AU - Danjo, Atsushi
AU - Yamaza, Haruyoshi
AU - Hama, Shion
AU - Nishida, Kento
AU - Tang, Ronghao
AU - Kyumoto-Nakamura, Yukari
AU - Uehara, Norihisa
AU - Kukita, Toshio
AU - Nishimura, Fusanori
AU - Yamaza, Takayoshi
N1 - Funding Information:
We would like to thank Editage (www.editage.jp) for English language editing. We thank Ms. Tomoko Tsujigo to her excllent help. This work was supported by JSPS KAKENHI Grant Number JP17J03382 to S.S. add 25293405 to T.Y. Finally, we thank Ms. Tomoyo Tsujigo for her excellent help.
PY - 2018/12/1
Y1 - 2018/12/1
N2 - Nitric oxide (NO) is thought to play a pivotal regulatory role in dental pulp tissues under both physiological and pathological conditions. However, little is known about the NO functions in dental pulp stem cells (DPSCs). We examined the direct actions of a spontaneous NO gas-releasing donor, NOC-18, on the odontogenic capacity of rat DPSCs (rDPSCs). In the presence of NOC-18, rDPSCs were transformed into odontoblast-like cells with long cytoplasmic processes and a polarized nucleus. NOC-18 treatment increased alkaline phosphatase activity and enhanced dentin-like mineralized tissue formation and the expression levels of several odontoblast-specific genes, such as runt related factor 2, dentin matrix protein 1 and dentin sialophosphoprotein, in rDPSCs. In contrast, carboxy-PTIO, a NO scavenger, completely suppressed the odontogenic capacity of rDPSCs. This NO-promoted odontogenic differentiation was activated by tumor necrosis factor-NF-κB axis in rDPSCs. Further in vivo study demonstrated that NOC-18-application in a tooth cavity accelerated tertiary dentin formation, which was associated with early nitrotyrosine expression in the dental pulp tissues beneath the cavity. Taken together, the present findings indicate that exogenous NO directly induces the odontogenic capacity of rDPSCs, suggesting that NO donors might offer a novel host DPSC-targeting alternative to current pulp capping agents in endodontics.
AB - Nitric oxide (NO) is thought to play a pivotal regulatory role in dental pulp tissues under both physiological and pathological conditions. However, little is known about the NO functions in dental pulp stem cells (DPSCs). We examined the direct actions of a spontaneous NO gas-releasing donor, NOC-18, on the odontogenic capacity of rat DPSCs (rDPSCs). In the presence of NOC-18, rDPSCs were transformed into odontoblast-like cells with long cytoplasmic processes and a polarized nucleus. NOC-18 treatment increased alkaline phosphatase activity and enhanced dentin-like mineralized tissue formation and the expression levels of several odontoblast-specific genes, such as runt related factor 2, dentin matrix protein 1 and dentin sialophosphoprotein, in rDPSCs. In contrast, carboxy-PTIO, a NO scavenger, completely suppressed the odontogenic capacity of rDPSCs. This NO-promoted odontogenic differentiation was activated by tumor necrosis factor-NF-κB axis in rDPSCs. Further in vivo study demonstrated that NOC-18-application in a tooth cavity accelerated tertiary dentin formation, which was associated with early nitrotyrosine expression in the dental pulp tissues beneath the cavity. Taken together, the present findings indicate that exogenous NO directly induces the odontogenic capacity of rDPSCs, suggesting that NO donors might offer a novel host DPSC-targeting alternative to current pulp capping agents in endodontics.
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U2 - 10.1038/s41598-018-21183-6
DO - 10.1038/s41598-018-21183-6
M3 - Article
C2 - 29467418
AN - SCOPUS:85042384991
VL - 8
JO - Scientific Reports
JF - Scientific Reports
SN - 2045-2322
IS - 1
M1 - 3419
ER -