生物谷報道:最近,明尼蘇達(dá)州大學(xué)的研究者發(fā)現(xiàn)一組在器官發(fā)育中的關(guān)鍵基因,??茖W(xué)家們在斑馬魚分泌腺上研究了這些基因的作用。這組基因編碼的蛋白定位在細(xì)胞表面或者內(nèi)部,,并且在體內(nèi)負(fù)責(zé)直接的“圖式發(fā)育”,,或者確保細(xì)胞的分裂,區(qū)別和移動在發(fā)育過程中正確形式的重要器官,,以確保它們在正確的地方,。這項研究發(fā)表在《Public Library of Science journal ONE》雜志的當(dāng)前在線期刊上。
研究者發(fā)現(xiàn)在不同系統(tǒng)和過程發(fā)育中一組新相關(guān)基因,,其中就像血液和血管的發(fā)育,眼和耳的形成,,脂質(zhì)或者脂肪的代謝,。此外,對于一個特定基因是否被打開或者被關(guān)閉僅僅是檢查一下已經(jīng)被取代,,他們可以直接比較移除在器官形成和功能時不同的基因時的效果,。明尼蘇達(dá)州大學(xué)醫(yī)學(xué)院遺傳與細(xì)胞生物學(xué)系的助理教授Stephen Ekker博士說:“在樣本中發(fā)現(xiàn)不同的基因表型給了我們發(fā)現(xiàn)這些器官發(fā)育的一種新水平的決心。”同時他還是在國際多項研究的首席作者,,其中包括從德國Freiburg免疫學(xué)的研究所Max-Planck來的科學(xué)家和馬里蘭州Baltimore的Washington研究所Carnegie,。對于這篇詳細(xì)的雜志文章,他們在其中說道檢查了150個基因,,并且他們將回繼續(xù)按照這種方式去檢查參與組成分泌腺的所有4000個基因,。
值得注意的是,斑馬魚是一種很好的供研究血管系統(tǒng)發(fā)育的模式生物,,他們研究在斑馬魚和人類中共同的“保守”基因,,這就意味著這些基因的存在在斑馬魚和人類中有著相同的作用。
Figure 1. Schematic of overall MO screen.
(A) A bioinformatics pipeline was developed to determine the subset of N-terminally complete CTT homologs representing the testable putative proteins of the zebrafish secretome. (B) AMOD software was developed to standardize and increase the efficiency of the MO design process to allow more rapid screening. (C) A MO database, MODB, was developed to manage, share, and data mine all MO design and outcome information. (D) Following MO synthesis and distribution to the participating labs, MOs were investigated using a variety of assays in zebrafish embryos that allowed functional annotation of 18/150 of the putative CTT proteins investigated. Results of investigations were recorded in MODB for data mining. AMOD software was used to design a second sequence-independent MO to assess specificity of the initial MO tested.
doi:10.1371/journal.pone.0000104.g001
原文出處:
Genome-Wide Reverse Genetics Framework to Identify Novel Functions of the Vertebrate Secretome
Michael A. Pickart3¤a, Eric W. Klee5¤b, Aubrey L. Nielsen1,2, Sridhar Sivasubbu1,2¤c, Eric M. Mendenhall1,2,6, Brent R. Bill1,2,4, Eleanor Chen1,2, Craig E. Eckfeldt6, Michelle Knowlton1,2, Mara E. Robu1,2,3, Jon D. Larson1,2, Yun Deng7, Lisa A. Schimmenti1,4, Lynda B.M. Ellis5, Catherine M. Verfaillie6, Matthias Hammerschmidt8, Steven A. Farber7, Stephen C. Ekker1,2*
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