张欣;孟紫强;

• 1:山西大学环境科学与工程研究中心、山西大学环境医学与毒理学研究所
• 2:山西大学环境科学与工程研究中心、山西大学环境医学与毒理学研究所 太原030006
• 3:太原030006

摘要(Abstract)：

为了探讨有害因子胁迫与二氧化硫(SO2)细胞生物合成的关系,采用体外培养实验方法研究了不同浓度H2O2(0.1、1、10mmol·L-1)以及不同pH值(6.8、7.2、8.0)培养液对人支气管上皮细胞(BEP2D)SO2产生量(以胞内SO32-含量代表)的影响.结果表明:1)培养液过酸(pH6.8)和过碱(pH8.0)均可使BEP2D细胞SO2产生量显著增加(与对照相比,p<0.05);2)H2O2胁迫也可使BEP2D细胞SO2产生量增加,当H2O2浓度≥1mmol·L-1时,与对照相比,差异达到显著(p<0.05).以上结果提示:人支气管上皮细胞在有害因子的胁迫下可产生内源性SO2;SO2可能是一种生物气体应激分子,能像应激蛋白那样提高生物体对有害因子的抵御能力.

关键词(KeyWords)： H2O2;pH值;SO2;应激;支气管上皮细胞;生物合成

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(No.20677035;No.20477023);; 山西省自然科学基金项目(No.20031092)

作者(Author): 张欣;孟紫强;

Email:

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