Liu Yuanyuan1, Guan Xiumei2, Cheng Min2, Li Xin2, Pan Yueyang2, Guo Zhiliang3. 1. Dept. of Stomatology, School of Stomatology, Affiliated Hospital of Weifang Medical University, Weifang 261053, China. 2. School of Clinical Medicine, Weifang Medical University, Weifang 261053, China. 3. Dept. of Spinal Surgery, PLA Eighty-ninth Hospital, Weifang 261053, China.
Abstract
OBJECTIVE: The aim of this study is to identify the role of adenosine triphosphate-sensitive potassium channel (KATP) in hydrogen sulfide (H₂S)-induced inhibition of high glucose (HG)-induced osteoblast damage. METHODS: Osteoblasts from rat mandible were cultured and identified. The osteoblasts were then treated with HG, H₂S, KATP channel opener pinacidil (Pia), and KATP channel blocker glibenclamide (Gli). Western blot method was performed to detect the expression of KATP channel protein. CCK8, reverse transcriptase polymerase chain reaction (RT-PCR) , and image analysis were used to determine the effects of H₂S-KATP on the proliferation, differentiation, and mineralization of osteoblasts. RESULTS: The expression of KATP channel protein in osteoblasts was significantly decreased under the influence of HG. H₂S pretreatment significantly inhibited HG on KATP channel protein down-regulation. Moreover, H₂S pretreatment significantly inhibited the effect of HG on the proliferation of osteoblasts, thereby preventing HG-induced inhibition of osteoblasts differentiation and mineralization. Meanwhile, the KATP channel blocker effectively blocked the H₂S on osteoblasts and had a protective effect. CONCLUSIONS: Through the KATP channel, H₂S inhibited osteoblasts damage induced by HG.
OBJECTIVE: The aim of this study is to identify the role of adenosine triphosphate-sensitive potassium channel (KATP) in hydrogen sulfide (H₂S)-induced inhibition of high glucose (HG)-induced osteoblast damage. METHODS: Osteoblasts from rat mandible were cultured and identified. The osteoblasts were then treated with HG, H₂S, KATP channel opener pinacidil (Pia), and KATP channel blocker glibenclamide (Gli). Western blot method was performed to detect the expression of KATP channel protein. CCK8, reverse transcriptase polymerase chain reaction (RT-PCR) , and image analysis were used to determine the effects of H₂S-KATP on the proliferation, differentiation, and mineralization of osteoblasts. RESULTS: The expression of KATP channel protein in osteoblasts was significantly decreased under the influence of HG. H₂S pretreatment significantly inhibited HG on KATP channel protein down-regulation. Moreover, H₂S pretreatment significantly inhibited the effect of HG on the proliferation of osteoblasts, thereby preventing HG-induced inhibition of osteoblasts differentiation and mineralization. Meanwhile, the KATP channel blocker effectively blocked the H₂S on osteoblasts and had a protective effect. CONCLUSIONS: Through the KATP channel, H₂S inhibited osteoblasts damage induced by HG.
Entities:
Keywords:
adenosine triphosphate-sensitive potassium channel; high glucose; hydrogen sulfide; osteoblast
Authors: Kazuhisa Nakashima; Xin Zhou; Gary Kunkel; Zhaoping Zhang; Jian Min Deng; Richard R Behringer; Benoit de Crombrugghe Journal: Cell Date: 2002-01-11 Impact factor: 41.582
Authors: Francesco Grassi; Abdul Malik Tyagi; John W Calvert; Laura Gambari; Lindsey D Walker; Mingcan Yu; Jerid Robinson; Jau-Yi Li; Gina Lisignoli; Chiara Vaccaro; Jonathan Adams; Roberto Pacifici Journal: J Bone Miner Res Date: 2015-12-23 Impact factor: 6.741