中国寄生虫学与寄生虫病杂志 ›› 2003, Vol. 21 ›› Issue (3): 4-143.

• 论著 • 上一篇    下一篇

不同温度对钉螺生殖腺一氧化氮合酶基因表达的影响

杨坤,周晓农,余传信,殷旭仁,洪青标,孙乐平,杨国静,张燕萍,黄轶昕
  

  1. 江苏省血吸虫病防治研究所,中国疾病预防控制中心寄生虫病预防控制所,无锡 214064,上海 200025
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2003-06-30 发布日期:2003-06-30

Expression of Nitric Oxide Synthase NOS mRNA in the Gonad of Oncomelania hupensis Cultured in Different Temperature

YANG Kun,ZHOU Xiao-nong,YU Chuan-xin,YIN Xu-ren,HONG Qing-biao,SUN Le-ping YANG Guo-jing,ZHANG Yan-ping,HUANG Yi-xin
  

  1. 1 Jiangsu Institute of Parasitic Diseases,Wuxi 214064 2 Institute of Parasitic Diseases,Chinese Center for Disease Control and Prevention,Shanghai 200025
  • Received:1900-01-01 Revised:1900-01-01 Online:2003-06-30 Published:2003-06-30

摘要:   目的研究不同温度下钉螺生殖腺一氧化氮合酶(NOS)mRNA表达的变化规律。方法钉螺放入不同温度(0℃、15℃、25℃)的培养箱内饲养1个月。用总RNA抽提试剂盒抽提总RNA,参照哺乳动物NOS的保守序列,设计出钉螺NOS的简并引物。用逆转录聚合酶链反应(RT-PCR)测定各实验组钉螺生殖腺NOSmRNA的表达量。结果各实验组均有特异性PCR产物条带出现,0℃组和25℃组的NOSmRNA表达量明显高于对照组(P<0.01),15℃组与对照组相比差异无显著性(P>0.05)。结论本研究设计的引物是可行的,温度变化可影响钉螺生殖腺NOSmRNA的表达。

关键词: 温度, 钉螺, 一氧化物氮合酶, 基因表达

Abstract:  Objective To study the expression of nitric oxide synthase (NOS)mRNA in the gonad of Oncamelania hu-pensis in different temperature. Methods The snails were cultured at temperature of 0℃ , 15 ℃and 25℃for 1 month. The total RNA of each group was extracted with the RNA extraction kit. A pair of degenerate primers was designed from conserved regions of mammalian NOSs, and the expression of NOS mRNA in the gonad was measured by means of reverse transcription polymerase chain reaction (RT-PCR). Results The target genes of NOS were detected in the gonad of snails. The level of expression of snail NOS mRNA in 25℃ group and 0℃group was significantly higher than that in the control group( P <0.01), there was no significant difference for the expression products between 15℃group and control group (P>0.05). Conclusion The designation of primers of the snails was validated. The impact of temperature on the expression of snail NOS mRNA was determined, which suggested that NO plays an important role in the physiological and pathological modulation.

Key words: temperature, Oncomelania hupensis, nitric oxide synthase (NOS), gene expression