中国医师杂志
中國醫師雜誌
중국의사잡지
JOURNAL OF CHINESE PHYSICIAN
2009年
12期
1592-1595
,共4页
张志杰%郭锋杰%童永清%李跃辉%谢平丽%李官成
張誌傑%郭鋒傑%童永清%李躍輝%謝平麗%李官成
장지걸%곽봉걸%동영청%리약휘%사평려%리관성
杂交%遗传%宫颈肿瘤/遗传学%基因文库
雜交%遺傳%宮頸腫瘤/遺傳學%基因文庫
잡교%유전%궁경종류/유전학%기인문고
Hybridization,genetic%Cervix neoplasms/GE%Gene library
目的 利用抑制性消减杂交技术构建太空诱变宫颈癌细胞的消减文库,为进一步从基因表达水平研究空间特殊环境影响肿瘤细胞生物学行为改变的分子机制奠定基础.方法 采用Super SMART和SSH技术,以太空诱变的宫颈癌48A9细胞株作为Tester,地面正常对照组宫颈癌细胞株作为Driver,分离太空诱变的宫颈癌48A9细胞中差异表达的基因片段;连接T载体,转化宿主菌,构建太空诱变的宫颈癌48A9细胞cDNA抑制性消减文库.结果 经蓝白筛选后随机挑取300个阳性克隆,以接头1和2R内侧序列为引物进行菌液PCR扩增鉴定阳性克隆,结果显示其中288个克隆有插入片段,阳性率为96%,大小分布在0.2~1.0 kb间.结论 本实验利用抑制性消减杂交技术成功的构建了高质量的太空诱变宫颈癌细胞消减文库,为进一步从基因水平阐明太空特殊环境对肿瘤细胞生物学行为改变的分子机制奠定了基础.
目的 利用抑製性消減雜交技術構建太空誘變宮頸癌細胞的消減文庫,為進一步從基因錶達水平研究空間特殊環境影響腫瘤細胞生物學行為改變的分子機製奠定基礎.方法 採用Super SMART和SSH技術,以太空誘變的宮頸癌48A9細胞株作為Tester,地麵正常對照組宮頸癌細胞株作為Driver,分離太空誘變的宮頸癌48A9細胞中差異錶達的基因片段;連接T載體,轉化宿主菌,構建太空誘變的宮頸癌48A9細胞cDNA抑製性消減文庫.結果 經藍白篩選後隨機挑取300箇暘性剋隆,以接頭1和2R內側序列為引物進行菌液PCR擴增鑒定暘性剋隆,結果顯示其中288箇剋隆有插入片段,暘性率為96%,大小分佈在0.2~1.0 kb間.結論 本實驗利用抑製性消減雜交技術成功的構建瞭高質量的太空誘變宮頸癌細胞消減文庫,為進一步從基因水平闡明太空特殊環境對腫瘤細胞生物學行為改變的分子機製奠定瞭基礎.
목적 이용억제성소감잡교기술구건태공유변궁경암세포적소감문고,위진일보종기인표체수평연구공간특수배경영향종류세포생물학행위개변적분자궤제전정기출.방법 채용Super SMART화SSH기술,이태공유변적궁경암48A9세포주작위Tester,지면정상대조조궁경암세포주작위Driver,분리태공유변적궁경암48A9세포중차이표체적기인편단;련접T재체,전화숙주균,구건태공유변적궁경암48A9세포cDNA억제성소감문고.결과 경람백사선후수궤도취300개양성극륭,이접두1화2R내측서렬위인물진행균액PCR확증감정양성극륭,결과현시기중288개극륭유삽입편단,양성솔위96%,대소분포재0.2~1.0 kb간.결론 본실험이용억제성소감잡교기술성공적구건료고질량적태공유변궁경암세포소감문고,위진일보종기인수평천명태공특수배경대종류세포생물학행위개변적분자궤제전정료기출.
Objectives Construct a subtractive library of Caski cell line induced by exposing to the space environment by suppression subtractive hybridization and pave the way to explain the molecular mechanisms of the changes at the gene level. Methods Super SMART cDNA synthesis and suppression subtractive hybridization (SSH) were performed to isolate differentially expressed cDNA fragments from strains subclonal 48A9 cell line. cDNA from the 48A9 cell line were used as " tester" , and the other from the control Caski cell line as "driver". Subtractive products were directly inserted into T/A cloning vector, and then transformed into host bacteria to set up a subtractive cDNA library of specially or highly expressed genes in strains subclonal 48A9 cell line. Results mRNA were directly extracted and purified with good quality. Double strand cDNA were reverse transcripted integratedly, and then cut by Rsa I into even length short segments. Liga-tion was identified as high effective. After two hybridizations, a subtractive library of differentially expressed genes in strains subclonal 48A9 cell line was successfully constructed by SSH. Conclusion SSH is an effective approach to isolate differentially expressed genes.