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目次
撰稿人
1.突變小鼠綜述
第一部分:胚胎幹細胞中的基因修飾
2.利用同源重組進行基因打靶載體的構建
3.基因捕獲載體和誘變作用
4.在胚胎幹細胞中的染色體工程技術
5.通過寡核苷酸單鏈DNA在胚胎幹細胞的基因修飾
6.shRNA轉基因小鼠的製備
7.利用甲基磺酸乙酯對小鼠胚胎幹細胞的誘變
第二部分:幹細胞操作
8.小鼠胚胎幹細胞的基因打靶
9.小鼠胚胎幹細胞的操作
10.胚胎幹細胞流程的建立
11.雙基因敲除胚胎幹細胞的製備
12.體外小鼠胚胎幹細胞全能性差異分析
13.胚胎幹細胞克隆及小鼠核移植
第三部分:小鼠遺傳工程
14.小鼠囊胚的分離,顯微注射及移植
15.嵌合體的聚集:包括胚胎幹細胞,二倍體,四倍體胚胎
16.利用八細胞胚胎幹細胞顯微注射獲得全能胚胎幹細胞F0代小鼠
17.利用細菌人工染色體進行Cre重組表達轉基因小鼠的製備
18.誘導小鼠
19.建立和應用Cre重組酶轉基因數據庫
20.在小鼠中進行轉座子誘變
21.慢病毒轉基因技術
22.精子冷凍保存和體外受精
第四部分:表型分析
23.在轉基因小鼠的表型中遺傳背景的影響
24.突變小鼠的病理表型
25.首要系統表型
索引·
書摘/試閱
1.Prepare 96-well flat-bottom TC plates with MMC-treated MEFs the day before picking the ICMs.
2.Draw out bend capillaries(~45°)from glass micropipettes in a gas flame(two for each ICM),break them by hand: capillaries with a tip size of~200 μm are used to pick and transfer the ICM outgrowth,a tip size of <50 μm(half="" icm="" diameter)is="" suitable="" for="" icm="" dissociation;="" store="" capillaries="" in="" sterile="" dishes.="">50>
3.Prepare a 96-well round-bottom TC plate containing 30 μL/well 0.25% Trypsin-EDTA for each ICM harvested.
4.Aspirate medium from 12-well TC plate containing blastocyst outgrowths,wash once with trypsin,aspirate trypsin immediately.
5.Place 12-well plate under a dissecting microscope placed within a clean bench.Using the 200-μm capillaries fitted with the mouth-controlled aspirator tube assembly,detach ICM from feeder layer and transfer each into an individual well of the trypsin containing 96-well round-bottom TC plate.Try to work fast; otherwise,the wells will dry out.
6.Incubate 5-10 min at 37℃,7.5% CO2.
7.Dissociate the ICM under the dissecting microscope using a mouth-controlled 50-μm capillary,by repeated pipetting in and out until single cells are obtained(see Note 9).
8.Upon dissociation of ICMs transfer suspended cells with the same capillary into a well of a 96-well TC feeder plate,prefilled with 180 μL ES medium.
9.Let cells grow for 2-4 days.Replace medium after 2 days with fresh ES medium.
10.Carefully inspect the wells at day 2 after ICM dissociation under low(50X)and high power(200X)magnification for the presence of colonies that exhibit ESC morphology(group of small cells in close contact forming a colony with clear borderline).Colonies may be marked with a pen at the bottom of the plate and reinspected the next day.A positive well usually exhibits several(2-10)ES colonies(see Note 10).Passage 1: Label positive wells with ES line name and passage no.1; prepare MEFs for splitting and expansion of the cultures.
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