ETS1/2对非洲爪蛙胰腺发育的影响
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国家自然科学基金(81200125);江苏省自然科学基金(BK2012648);江苏省“青蓝工程”(JX2161015061);江苏高校优势学科建设工程资助项目(PAPD)


Effects of ETS1/2 on pancreas development of Xenopus laevis
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    摘要:

    目的:探讨ETS1/2对非洲爪蛙胚胎胰腺发育的影响。方法:设计并合成特异性抑制ETS1/2表达的反义吗啉代寡核苷酸(morpholino oligonueleitide,MO),通过显微注射的方法将MO转入爪蛙胚胎,利用整胚原位杂交和定量RT-PCR检测标志性基因的表达变化。结果:单独敲降ETS1或ETS2对爪蛙胚胎发育无明显影响,共同敲降ETS1/2后会使爪蛙胚胎发育异常,胰腺标志基因表达上升,肠道标志基因表达下降,肝脏和胃标志基因无明显变化;胰腺标志基因ngn3、igf1、foxa1的启动子区存在ETS1/2的结合位点。结论:单独敲降ETS1或ETS2对爪蛙胚胎发育无明显影响,敲降ETS1/2促进爪蛙胚胎胰腺发育,抑制肠道发育,对肝脏和胃的发育无明显影响。

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    Objective:To investigate the effects of ETS1/2 on pancreas development of Xenopus laevis. Methods:The specific morpholino oligonueleitides(MOs) were designed to knockdown the ETS1/2 by microinjection. The expression of marker genes was tested during pancreas formation by whole mount in situ hybridization and quantitative RT-PCR. ETS1/2 downstream genes were screened by bioinformatics analysis. Results:Knockdown of ETS1 or ETS2 had no effect on embryo development of Xenopus laevis. Knockdown of both ETS1/2 promoted the expression of pancreas marker genes while inhibited the expression of intestine marker genes,and had no effects on the expression of liver and stomach marker genes. The binding sites of ETS1/2 were found in the promoter regions of pancreatic marker genes ngn3,igf1 and foxa1. Conclusion:Knockdown of ETS1/2 promoted the pancreas development of Xenopus laevis while inhibited the intestine development,and had no effects on the development of the liver and stomach.

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李 卉,殷晨阳,李德利,郭 静,刘 佳,袁 栎. ETS1/2对非洲爪蛙胰腺发育的影响[J].南京医科大学学报(自然科学版),2017,(7):785-791

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  • 收稿日期:2016-12-19
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  • 在线发布日期: 2017-07-16
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