Propofol attenuates mast cell degranulation via inhibiting the miR‑221/PI3K/Akt/Ca2+ pathway

Yi,Zhiyong; Yi,Zhipan; Huang,Kai; Cao,Yanqun; Xiao,Chuli; Li,Yanwei; Lu,Quzhe; Zhao,Shuang; Luo,Wenqi; Liu,Guanlan

doi:10.3892/etm.2018.6317

Propofol attenuates mast cell degranulation via inhibiting the miR‑221/PI3K/Akt/Ca2+ pathway

Authors:
- Zhiyong Yi
- Zhipan Yi
- Kai Huang
- Yanqun Cao
- Chuli Xiao
- Yanwei Li
- Quzhe Lu
- Shuang Zhao
- Wenqi Luo
- Guanlan Liu
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Affiliations: Department of Human Anatomy and Histology‑Embryology, Medical School, Shaoyang University, Shaoyang, Hunan 422000, P.R. China, Pharmaceutical Preparation Section, Shaoyang Maternity and Child Health Care Hospital, Shaoyang, Hunan 422001, P.R. China, Department of Histology and Embryology, Changsha Medical University, Changsha, Hunan 410219, P.R. China
Published online on: June 15, 2018 https://doi.org/10.3892/etm.2018.6317
Pages: 1426-1432

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Abstract

The aim of the present study was to investigate the effect of propofol on immunoglobulin (Ig)E‑activated mast cell degranulation and explore the underlying mechanisms responsible. RBL‑2H3 cells were treated with propofol for at a variety of concentrations and different amounts of time. Cell viability was assessed using an MTT assay and microRNA (miR)‑221 expression was quantified using reverse transcription‑quantitative polymerase chain reaction. RBL‑2H3 cells were transfected with miR‑221 mimic or a negative control and degranulation, including the release of β‑hexosaminidase and histamine, was evaluated using an ELISA kit. The effect of miR‑221 overexpression on the phosphorylation of protein kinase B (Akt) was detected using western blotting and extracellular Ca2+ influx was measured via afura‑2 assay. The phosphoinositide 3‑kinase(PI3K) inhibitor LY294002 was used to investigate the association between PI3K/Akt signaling and Ca2+ influx in the presence of propofol. The results demonstrated that propofol treatment suppressed RBL‑2H3 cell proliferation in a dose‑ and time‑dependent manner. Propofol inhibited miR‑221 expression in a dose‑dependent manner compared with the control group; however, the inhibitive effect was significantly abrogated following transfection with miR‑221 mimics. Furthermore, β‑hexosaminidase and histamine release, PI3K/Akt signaling and Ca2+ influx were decreased following propofol application. miR‑221 overexpression markedly ameliorated the suppressive effect of propofol. Treatment with LY294002 reversed the propofol‑induced decrement of Ca2+ influx on IgE‑mediated RBL‑2H3 cells, suggesting an association between PI3K/Akt signaling and Ca2+ influx. In conclusion, the results of the present study suggest that propofol treatment attenuates mast cell degranulation via inhibiting the miR‑221/PI3K/Akt/Ca2+ pathway. These results indicate that propofol may have a potential therapeutic effect as a treatment for allergic diseases.

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