ラボで作業員グラント博士アンジャリ Nandal して探索的助成金によって支持されたメリーランド州の幹細胞研究基金に BT (テッドコー) から。

<ol>
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R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=CRISPR-Based+Technologies+for+the+Manipulation+of+Eukaryotic+Genomes.">CRISPR-Based Technologies for the Manipulation of Eukaryotic Genomes.</a> Cell. 169, 559 (2017).</li><li>Komor, A. C., Badran, A. H., Liu, D. R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=CRISPR-Based+Technologies+for+the+Manipulation+of+Eukaryotic+Genomes.">CRISPR-Based Technologies for the Manipulation of Eukaryotic Genomes.</a> Cell. 168, 20-36 (2017).</li><li>Sander, J. D., Joung, J. K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=CRISPR-Cas+systems+for+editing,+regulating+and+targeting+genomes.">CRISPR-Cas systems for editing, regulating and targeting genomes.</a> Nat. Biotech. 32, 347-355 (2014).</li><li>McElroy, S. L., Reijo Pera, R. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Preparation+of+mouse+embryonic+fibroblast+feeder+cells+for+human+embryonic+stem+cell+culture.">Preparation of mouse embryonic fibroblast feeder cells for human embryonic stem cell culture.</a> CSH Protoc. 2008, (2008).</li><li>Lian, X., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Robust+cardiomyocyte+differentiation+from+human+pluripotent+stem+cells+via+temporal+modulation+of+canonical+Wnt+signaling.">Robust cardiomyocyte differentiation from human pluripotent stem cells via temporal modulation of canonical Wnt signaling.</a> Proc. Natl. Acad. Sci. U.S.A. 109, E1848-E1857 (2012).</li><li>Rezania, A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Reversal+of+diabetes+with+insulin-producing+cells+derived+in+vitro+from+human+pluripotent+stem+cells.">Reversal of diabetes with insulin-producing cells derived in vitro from human pluripotent stem cells.</a> Nat. Biotech. 32, 1121-1133 (2014).</li><li>Shi, Y., Inoue, H., Wu, J. C., Yamanaka, S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Induced+pluripotent+stem+cell+technology:+a+decade+of+progress.">Induced pluripotent stem cell technology: a decade of progress.</a> Nat. Rev. Drug Discov. 16, 115-130 (2017).</li><li>Wang, B., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Highly+efficient+CRISPR/HDR-mediated+knock-in+for+mouse+embryonic+stem+cells+and+zygotes.">Highly efficient CRISPR/HDR-mediated knock-in for mouse embryonic stem cells and zygotes.</a> BioTechniques. 59, (2015).</li><li>Liang, X., Potter, J., Kumar, S., Ravinder, N., Chesnut, J. D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Enhanced+CRISPR/Cas9-mediated+precise+genome+editing+by+improved+design+and+delivery+of+gRNA,+Cas9+nuclease,+and+donor+DNA.">Enhanced CRISPR/Cas9-mediated precise genome editing by improved design and delivery of gRNA, Cas9 nuclease, and donor DNA.</a> J Biotech. 241, 136-146 (2017).</li></ol>

BT は改修サイエンス株式会社の創立メンバーです。

Ips にひと体細胞のリプログラミングは基礎生物学研究、個別化医療、疾患モデル作製、医薬品開発、再生医療16の分野に大きな後押しを提供しています。人間 iPSC 世代の多くの現在、広く使用されている方法、ウイルスが宿主ゲノムに統合のリスクを使用するまたは episomal ベクトルの低効率をプログラムし直します。センダイ ウイルス、'無料フット プリント' や効率的な?...

初期化因子の過剰発現による多能性の状態に人間の体細胞のリプログラミング病モデル ・再生医療・新薬開発のアプリケーションで幹細胞研究をもたらしました。いくつかの非ウイルス性リプログラミング手法は初期化因子の Ips を生成配信に利用できるが、プロセスは労働集約的な非常に効率的ではありません1。ウイルスの方法が効率的なウイルスの統合および腫瘍2,3,4の問題に関連付けられます。本稿では、初期化因子の彼らのゲノムの5に、ウイルスのベクトル シーケンスの統合が欠如してフット プリント無料 iPSC ラインの確立を提供する細胞質のセンダイ ウイルスの使用を報告します。センダイ ウイルスは RNA ウイルス感染後細胞細胞質 〜 10 通路を希薄化は、迅速かつ効率的な6、7のリプログラミングにつながる豊富に初期化因子を生成です。確立された Ips は、8フィーダー細胞としてマウス萌芽期の繊維芽細胞 (MEFs) の使用を避けるために送り装置自由な媒体に容易に移行することができます。
リプログラミング、センダイ ウイルス媒介のアウトラインだけでなく、文書内 Ips 研究に必要な遺伝的変更と無制限のひと細胞を供給する可能性を秘めているを編集するための改良されたプロトコルについて述べる。Ips は、プールされたライブラリの遺伝子工学、遺伝子発見のスクリーニング、大規模なゲノム削除、ノックアウト ノック アドインを含むアプリケーションの広い範囲が使用されている現在の変更の CRISPR/Cas9 技術を使用しています。多数のモデル生物と遺伝子療法9,10,11。この技法が化膿連鎖球菌の複合体の形成-派生 Cas9 ヌクレアーゼと 20 mer ガイド Rna 3' 隣接塩基配列 protospacer に隣接するゲノムのターゲット シーケンスと基本ペアリングを介してターゲット認識を達成します。モチーフ (PAM) のシーケンス。Cas9 ヌクレアーゼを二重鎖休憩 〜 3 ヌクレオチド非相同末端結合 (NHEJ) 経路を挿入または開いたリーディング ・ フレームの削除につながるによって主にその後修理されそれにより機能は、PAM のサイトから誘導します。12遺伝子のノックアウト。
私たちの改善されたプロトコルはヒト膵細胞の文化の詳細、マウス萌芽期の繊維芽細胞 (MEFs) リプログラミング、フィーダー フリー培養へのそれに続く適応の高効率化を達成するために、有糸分裂でリプログラミング不活化マトリゲル、確立された Ips の特性に CRISPR ガイド RNA の設計、準備、RNP 複合体、編集した Ips のクローンのラインを生成する単一のセルの並べ替え、簡単審査、編集の同定と解析として Ips に配信単一細胞のクローンを作成します。ゲノム削除は Cas9 蛋白質と二重鎖切断 (Dsb) を誘発する 2 つ CRISPR sgRNA RNP 複合体の導入によって、本研究では効率的に生成され、セグメントの介在の削除。このメソッドは開いたリーディング ・ フレームの削除を生成するための 2 つのガイドの使用を活用、高効率の低い数字につながる NHEJ の自動キャピラリーによって特徴付けられる必要、クローンの簡単な事前審査のクローンを作成電気泳動装置、フラグメント アナライザー。これらの効果的なゲノムのひと幹細胞を用いた疾患モデルを生成するメソッドの編集は、幹細胞の研究室で標準的なルーチンのアプローチにすぐになります。最後に、正確なゲノム編集幹細胞病モデルを超えて移動することが可能になるし、潜在的触媒作用で細胞ベースの治療を助けることができます。

<table><tbody><tr><td>Sendai viral vectors - CytoTune-iPS 2.0 Kit</td><td>Invitrogen</td><td>A16517</td><td>Thaw on ice; S No: 1</td></tr><tr><td>Trypsin EDTA</td><td>Gibco Life Tech</td><td>25300-054</td><td>0.05%, 100 ml; S No: 2</td></tr><tr><td>Rock inhibitor (Y-27632)</td><td>Milipore</td><td>SCM075</td><td>Use 10 &amp;mu;M; S No: 3</td></tr><tr><td>DMEM/F-12 medium</td><td>Invitrogen</td><td>11330-032</td><td>S No: 4</td></tr><tr><td>Serum replacement (KSR)</td><td>Gibco</td><td>10828028</td><td>S No: 5</td></tr><tr><td>DMEM</td><td>Invitrogen</td><td>11960069</td><td>1X; S No: 6</td></tr><tr><td>Fetal bovine serum</td><td>Thermo Scientific</td><td>SH30071.03</td><td>Aliquot; S No: 7</td></tr><tr><td>L-glutamine (Glutamax, 100X), liquid</td><td>Thermo Scientific</td><td>35050061</td><td>1/100; S No: 8</td></tr><tr><td>Non-Essential Amino Acids</td><td>Gibco</td><td>11140-050</td><td>1/100; S No: 9</td></tr><tr><td>2-Mercaptoethanol</td><td>Gibco</td><td>21985023</td><td>55 mM, 1/1,000; S No: 10</td></tr><tr><td>Hausser Hemacytometers</td><td>Hausser Scientific</td><td>02-671-54</td><td>S No: 11</td></tr><tr><td>0.1% Gelatin Solution</td><td>STEMCELL Technologies</td><td>7903</td><td>Incubate at 37&amp;ordm; C for 1 hour; S No: 12</td></tr><tr><td>SSEA-4 antibody</td><td>Santacruz</td><td>sc-21704</td><td>1/100; S No: 13</td></tr><tr><td>TRA-1-81 antibody</td><td>Cell Signaling</td><td>4745S</td><td>1/200; S No: 14</td></tr><tr><td>OCT4 antibody</td><td>Santa Cruz</td><td>sc-5279</td><td>1/1,000; S No: 15</td></tr><tr><td>Collagen I, Rat Tail</td><td>Life Technologies</td><td>A10483-01</td><td>Keep cold; S No: 16</td></tr><tr><td>Alexa Fluor fluorescent 488/ 568 (secondary antibodies)</td><td>Invitrogen</td><td>A21202/A10042</td><td>1/2,000; S No: 17</td></tr><tr><td>DPBS</td><td>Hyclone</td><td>SH30028LS</td><td>1X; S No: 18</td></tr><tr><td>100-mm tissue culture dish</td><td>Falcon</td><td>353003</td><td>S No: 20</td></tr><tr><td>96-well tissue culture plate</td><td>Falcon</td><td>353078</td><td>S No: 21</td></tr><tr><td>6-well tissue culture plate</td><td>Falcon</td><td>353046</td><td>S No: 22</td></tr><tr><td>Dissecting scope&amp;nbsp;</td><td>Nikon</td><td>SMZ745</td><td>S No: 23</td></tr><tr><td>Picking hood</td><td>NuAire</td><td>NU-301</td><td>S No: 24</td></tr><tr><td>15&amp;nbsp;ml Centrifuge Tube</td><td>Greiner Bio-One</td><td>188271</td><td>S No: 25</td></tr><tr><td>50&amp;nbsp;ml Centrifuge Tube</td><td>Greiner Bio-One</td><td>227261</td><td>S No: 26</td></tr><tr><td>Sodium pyruvate</td><td>Invitrogen</td><td>11360</td><td>S No: 28</td></tr><tr><td>&amp;beta;-mercaptoethanol</td><td>Sigma</td><td>M7522</td><td>S No: 29</td></tr><tr><td>Prigrow III medium</td><td>ABM</td><td>TM003</td><td>S No: 31</td></tr><tr><td>Countess&amp;trade; Cell Counter</td><td>Invitrogen</td><td>C10227</td><td>S No: 32</td></tr><tr><td>Faxitron X-ray system</td><td>Faxitron</td><td>CellRad</td><td>S No: 33</td></tr><tr><td>Accutase</td><td>Innovative cell Technologies</td><td>AT-104</td><td>S No: 34</td></tr><tr><td>Collagenase</td><td>Life Technologies</td><td>17104019</td><td>1mg/ml stock; S No: 35</td></tr><tr><td>Dispase</td><td>STEMCELL Technologies</td><td>7923</td><td>S No: 36</td></tr><tr><td>hESC qualified matrigel</td><td>BD Biosciences</td><td>354277</td><td>To dilute, use cold DMEM/F-12; S No: 37</td></tr><tr><td>bFGF</td><td>R &amp;amp; D</td><td>233-FB</td><td>Stock 10 ug/ml; S No: 38</td></tr><tr><td>Paraformaldehyde</td><td>EMS</td><td>15710</td><td>4% stock in PBS; S No: 39</td></tr><tr><td>TRA-1-60</td><td>Santa Cruz</td><td>sc-21705</td><td>1/100; S No: 40</td></tr><tr><td>NANOG</td><td>ReproCELL</td><td>RCAB0004P-F</td><td>1/100; S No: 41</td></tr><tr><td>Tween 20</td><td>Sigma</td><td>P9416-100ML</td><td>S No: 42</td></tr><tr><td>Alkaline Phosphatase kit</td><td>Stemgent</td><td>00-0055</td><td>S No: 43</td></tr><tr><td>Cas9 protein</td><td>PNA Bio</td><td>CP01-50</td><td>Thaw and aliquot; S No: 44</td></tr><tr><td>Goat or donkey serum</td><td>Sigma</td><td>D9663/G9023</td><td>S No: 45</td></tr><tr><td>Triton X-100</td><td>Sigma</td><td>X100-100ML</td><td>S No: 46</td></tr><tr><td>DAPI</td><td>Thermo Scientific</td><td>D1306</td><td>S No: 47</td></tr><tr><td>Tris</td><td>Sigma</td><td>9285-100ML</td><td>S No: 48</td></tr><tr><td>NaCL</td><td>Sigma</td><td>S7653-250G</td><td>S No: 49</td></tr><tr><td>EDTA</td><td>Sigma</td><td>BP2482-500</td><td>S No: 50</td></tr><tr><td>T4 DNA ligase</td><td>NEB</td><td>M0202T</td><td>S No: 51</td></tr><tr><td>Mega Shortscript T7 kit</td><td>Thermo Scientific</td><td>AM1354</td><td>S No: 52</td></tr><tr><td>Mega Clear kit</td><td>Thermo Scientific</td><td>AM1908</td><td>S No: 53</td></tr><tr><td>SMC4</td><td>BD Biosciences</td><td>354357</td><td>S No: 54</td></tr><tr><td>Fibronectin</td><td>STEMCELL Technologies</td><td>7159</td><td>S No: 55</td></tr><tr><td>CloneJET cloning kit</td><td>Thermo Scientific</td><td>K1232</td><td>S No: 56</td></tr><tr><td>Fragment analyzer&lt;sup&gt;TM&lt;/sup&gt;</td><td>Advanced Analytical</td><td></td><td>S No: 57</td></tr><tr><td>mTeSR1 medium kit</td><td>STEMCELL Technologies</td><td>5850</td><td>Warm to room temperature; S No: 58</td></tr><tr><td>Freezing medium mFreSR&amp;trade;</td><td>STEMCELL Technologies</td><td>5855</td><td>S No: 59</td></tr><tr><td>Freezing medium CryoStor&amp;reg;</td><td>STEMCELL Technologies</td><td>7930</td><td>S No: 60</td></tr><tr><td>MEFs</td><td>Globalstem</td><td>GSC-6301G</td><td>S No: 61</td></tr><tr><td>L-glutamine</td><td>Invitrogen</td><td>25030081</td><td>S No: 62</td></tr><tr><td>Human pancreatic cells</td><td>ABM</td><td>T0159</td><td>S No: 63</td></tr><tr><td>STEMdiff&amp;trade; Neural Induction Medium</td><td>Stemcell Technologies</td><td>5835</td><td>S No: 64</td></tr><tr><td>RPMI</td><td>Thermofisher</td><td>11875-093</td><td>S No: 65</td></tr><tr><td>2% B27-insulin</td><td>Thermofisher</td><td>A1895601</td><td>S No: 66</td></tr><tr><td>CHIR99021</td><td>Stemcell Technologies</td><td>72052</td><td>S No: 67</td></tr><tr><td>IWP4</td><td>Stemcell Technologies</td><td>72552</td><td>S No: 68</td></tr><tr><td>2% B27</td><td>Thermofisher</td><td>17504044</td><td>S No: 69</td></tr><tr><td>MCDB 131</td><td>Life Technologies</td><td>10372019</td><td>S No: 70</td></tr><tr><td>Sodium bicarbonate</td><td>Sigma-Aldrich</td><td>S8761-100ML</td><td>S No: 71</td></tr><tr><td>Glucose</td><td>Sigma-Aldrich</td><td>G8270-100G</td><td>S No: 72</td></tr><tr><td>BSA</td><td>Proliant</td><td>68700</td><td>S No: 73</td></tr><tr><td>GDF8</td><td>Pepro-Tech</td><td>120-00</td><td>S No: 74</td></tr><tr><td>TUJ1 antibody</td><td>EMD Milipore</td><td>AB9354</td><td>S No: 75</td></tr><tr><td>NKX2-5 antibody</td><td>Santa Cruz</td><td>Sc-14033</td><td>S No: 76</td></tr><tr><td>SOX17 antibody</td><td>R &amp;amp; D systems</td><td>AF1924</td><td>S No: 77</td></tr><tr><td>Propidium iodide</td><td>Thermo Scientific</td><td>P3566</td><td>S No: 78</td></tr><tr><td>Amaxa 4D-nucleofector&amp;trade;</td><td>Lonza</td><td>AAF-1002</td><td>S No: 79</td></tr><tr><td>FACSAria II (cell sorter)</td><td>BD biosciences</td><td>SORP UV</td><td>S No: 80</td></tr></tbody></table>

efficient generation and editing of feeder-free ipscs from human pancreatic cells using the crispr-cas9 system

胚性人工多能性幹細胞は自己更新でき、体の種類の細胞に分化します。多能性細胞は再生医療の研究のためこのように切望され、眼疾患、糖尿病、心臓病や他の疾患の臨床試験は、現在。ゲノム編集 CRISPR/Cas システムを含む技術の最近の進歩と相まって種類の専門にされた細胞に区別するために潜在的な様々 なアプリケーションの iPSC のゲノムを仕立ての追加の機会を提供しています。疾患モデル、遺伝子治療を含む、いくつかの名前への分化の経路をバイアスします。利用可能な編集技術の中で化膿連鎖球菌から CRISPR/Cas9 は、真核生物のゲノムのサイト固有の編集に最適なツールとして浮上しています。CRISPRs は、簡単にアクセスでき、安価で、ターゲットを絞った編集工学で非常に効率的です。Cas9 ヌクレアーゼとガイド シーケンス (20 mer) の 3 塩基"NGG"protospacer-隣接する-モチーフ (PAM) 普遍的な Cas9 バインド トレーサー RNA (と一緒に目的の genomic 位置に Cas9 をターゲットに隣接しているゲノムのターゲットに特定システムが必要です。一緒に呼ばれる 1 つのガイド RNA または sgRNA)。ここで提案するステップバイ ステップのフィーダーに依存しない、フット プリント無料 iPSC の効率的な生成のためのプロトコルし、iPSC Cas9 リボ核タンパク質 (RNP) 錯体を用いたゲノム編集の方法論を記述します。ゲノムのプロトコルを編集、効果的な Cas9 蛋白質と細胞に同時に提供する 1 つ以上のターゲットの前錯化 sgRNAs で簡単に多重化できます。最後に、必要な編集と Ips の同定と解析のためのシンプルなアプローチについて述べる。一緒に取られて、輪郭を描かれた戦略は、世代とマニホールド用 iPSC の編集を効率化する予定です。

この文書の統合またはフット プリント無料仙台のウイルスのベクトルを使用して人間の膵臓の細胞から iPSC の世代のシンプルで効率的なプロトコルを続いている我々。図 1 aは、この初期化プロトコルの概略を示しています。人間の膵臓の細胞は、Prigrow III 培地中で培養し、上述のセンダイ ウイルスで導入した商業的に、購入しました。導入さ?...

Watch this Scientific Journal Video about Efficient Generation and Editing of Feeder-free IPSCs from Human Pancreatic Cells Using the CRISPR-Cas9 System at JoVE.com

Efficient Generation and Editing of Feeder-free IPSCs from Human Pancreatic Cells Using the CRISPR-Cas9 System

これは修正の CRISPR/Cas9 ribonucleoproteins を用いた編集が続いてプロトコル記述フィーダー無料条件で人間の膵臓の細胞からフット プリント無料誘導多能性幹細胞 (Ips) の世代を詳細単一細胞のクローンを作成します。

効率的な生成および CRISPR Cas9 システムを用いた人間の膵臓細胞から Ips をフィーダー フリーの編集

Embryonic and induced pluripotent stem cells can self-renew and differentiate into multiple cell types of the body. The pluripotent cells are thus coveted ...

efficient-generation-editing-feeder-free-ipscs-from-human-pancreatic

Universidad de Cartagena UDEC

Research

JoVE Journal

Bioengineering

10.0K ビュー.  University of Maryland. これは修正の CRISPR/Cas9 ribonucleoproteins を用いた編集が続いてプロトコル記述フィーダー無料条件で人間の膵臓の細胞からフット プリント無料誘導多能性幹細胞 (Ips) の世代を詳細単一細胞のクローンを作成します。

ビデオ: Efficient Generation and Editing of Feeder-free IPSCs from Human Pancreatic Cells Using the CRISPR-Cas9 System

Efficient Generation of hiPSC Neural Lineage Specific Knockin Reporters Using the CRISPR/Cas9 and Cas9 Double Nickase System

Gene targeting is a critical approach for characterizing gene functions in modern biomedical research. However, the efficiency of gene targeting in human cells has been low, which prevents the generation of human cell lines at a desired rate. The past two years have witnessed a rapid progression on improving efficiency of genetic manipulation by genome editing tools such as the CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats)/Cas (CRISPR-associated) system. This manuscript describes a protocol for generating lineage specific human induced pluripotent stem cell (hiPSC) reporters using CRISPR/Cas system assisted homologous recombination. Procedures for obtaining necessary components for making neural lineage reporter lines using the CRISPR/Cas system, focusing on construction of targeting vectors and single guide RNAs, are described. This protocol can be extended to platform establishment and mutation correction in hiPSCs.

Genome editing tools such as the CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats)/Cas (CRISPR-associated) system have greatly improved gene targeting efficiency in human induced pluripotent stem cells (hiPSCs). This manuscript describes a protocol for generating lineage specific hiPSC reporter using CRISPR/Cas system assisted homologous recombination.

hiPSC神経系統を効率的に生成するCRISPRを使用して特定のノック記者/ Cas9とCas9ダブルニッカーゼシステム

Gene targeting is a critical approach for characterizing gene functions in modern biomedical research. However, the efficiency of gene targeting in human ...

発生生物学

Genome Editing and Directed Differentiation of hPSCs for Interrogating Lineage Determinants in Human Pancreatic Development

Interrogating gene function in self-renewing or differentiating human pluripotent stem cells (hPSCs) offers a valuable platform towards understanding human development and dissecting disease mechanisms in a dish. To capitalize on this potential application requires efficient genome-editing tools to generate hPSC mutants in disease-associated genes, as well as in vitro hPSC differentiation protocols to produce disease-relevant cell types that closely recapitulate their in vivo counterparts. An efficient genome-editing platform for hPSCs named iCRISPR has been developed through the TALEN-mediated targeting of a Cas9 expression cassette in the AAVS1 locus. Here, the protocols for the generation of inducible Cas9 hPSC lines using cells cultured in a chemically defined medium and a feeder-free condition are described. Detailed procedures for using the iCRISPR system for gene knockout or precise genetic alterations in hPSCs, either through non-homologous end joining (NHEJ) or via precise nucleotide alterations using a homology-directed repair (HDR) template, respectively, are included. These technical procedures include descriptions of the design, production, and transfection of CRISPR guide RNAs (gRNAs); the measurement of the CRISPR mutation rate by T7E1 or RFLP assays; and the establishment and validation of clonal mutant lines. Finally, we chronicle procedures for hPSC differentiation into glucose-responsive pancreatic &#946;-like cells by mimicking in vivo pancreatic embryonic development. Combining iCRISPR technology with directed hPSC differentiation enables the systematic examination of gene function to further our understanding of pancreatic development and diabetes disease mechanisms.

Protocols to generate hPSC mutant lines using the iCRISPR platform and to differentiate hPSCs into glucose-responsive &#946;-like cells are described. Combining genome editing technology with hPSC-directed differentiation provides a powerful platform for the systematic analysis of the role of lineage determinants in human development and disease progression.

ヒト膵臓の開発にリネージュの決定要因を問い合わせるためのゲノム編集とhPSCsの指向性分化

Interrogating gene function in self-renewing or differentiating human pluripotent stem cells (hPSCs) offers a valuable platform towards understanding ...

遺伝学

Generation of Induced Pluripotent Stem Cells from Human Peripheral T Cells Using Sendai Virus in Feeder-free Conditions

Recently, iPSCs have attracted attention as a new source of cells for regenerative therapies. Although the initial method for generating iPSCs relied on dermal fibroblasts obtained by invasive biopsy and retroviral genomic insertion of transgenes, there have been many efforts to avoid these disadvantages. Human peripheral T cells are a unique cell source for generating iPSCs. iPSCs derived from T cells contain rearrangements of the T cell receptor (TCR) genes and are a source of antigen-specific T cells. Additionally, T cell receptor rearrangement in the genome has the potential to label individual cell lines and distinguish between transplanted and donor cells. For safe clinical application of iPSCs, it is important to minimize the risk of exposing newly generated iPSCs to harmful agents. Although fetal bovine serum and feeder cells have been essential for pluripotent stem cell culture, it is preferable to remove them from the culture system to reduce the risk of unpredictable pathogenicity. To address this, we have established a protocol for generating iPSCs from human peripheral T cells using Sendai virus to reduce the risk of exposing iPSCs to undefined pathogens. Although handling Sendai virus requires equipment with the appropriate biosafety level, Sendai virus infects activated T cells without genome insertion, yet with high efficiency. In this protocol, we demonstrate the generation of iPSCs from human peripheral T cells in feeder-free conditions using a combination of activated T cell culture and Sendai virus.

This protocol describes how to generate induced pluripotent stem cells (iPSCs) from human peripheral T cells in feeder-free conditions using a combination of matrigel and Sendai virus vectors containing reprogramming factors.

フィーダーフリー条件にセンダイウイルスを用いてヒト末梢T細胞から人工多能性幹細胞の生成

Recently, iPSCs have attracted attention as a new source of cells for regenerative therapies. Although the initial method for generating iPSCs relied on ...

Endogenous Protein Tagging in Human Induced Pluripotent Stem Cells Using CRISPR/Cas9

A protocol is presented for generating human induced pluripotent stem cells (hiPSCs) that express endogenous proteins fused to in-frame&#160;N- or C-terminal fluorescent tags. The prokaryotic CRISPR/Cas9 system (clustered regularly interspaced short palindromic repeats/CRISPR-associated 9) may be used to introduce large exogenous sequences into genomic loci via homology directed repair (HDR). To achieve the desired knock-in, this protocol employs the ribonucleoprotein (RNP)-based approach where wild type Streptococcus pyogenes Cas9 protein, synthetic 2-part guide RNA (gRNA), and a donor template plasmid are delivered to the cells via electroporation. Putatively edited cells expressing the fluorescently tagged proteins are enriched by fluorescence activated cell sorting (FACS). Clonal lines are then generated and can be analyzed for precise editing outcomes. By introducing the fluorescent tag at the genomic locus of the gene of interest, the resulting subcellular localization and dynamics of the fusion protein can be studied under endogenous regulatory control, a key improvement over conventional overexpression systems. The use of hiPSCs as a model system for gene tagging provides the opportunity to study the tagged proteins in diploid, nontransformed cells. Since hiPSCs can be differentiated into multiple cell types, this approach provides the opportunity to create and study tagged proteins in a variety of isogenic cellular contexts.

Described here is a protocol for tagging endogenously expressed proteins with fluorescent tags in human induced pluripotent stem cells using CRISPR/Cas9. Putatively edited cells are enriched by fluorescence activated cell sorting and clonal cell lines are generated.

人間でタグ内因性のタンパク質誘導多能性幹細胞 CRISPR/Cas9 を使用して

A protocol is presented for generating human induced pluripotent stem cells (hiPSCs) that express endogenous proteins fused to in-frame&#160;N- or ...

Generation of Integration-free Induced Pluripotent Stem Cells from Human Peripheral Blood Mononuclear Cells Using Episomal Vectors

Induced Pluripotent Stem Cells (iPSCs) hold great promise for disease modeling and regenerative therapies. We previously reported the use of Episomal Vectors (EV) to generate integration-free iPSCs from peripheral blood mononuclear cells (PB MNCs). The episomal vectors used are DNA plasmids incorporated with oriP and EBNA1 elements from the Epstein-Barr (EB) virus, which&#160;allow for replication and long-term retainment of plasmids in mammalian cells, respectively. With further optimization, thousands of iPSC colonies can be obtained from 1 mL of peripheral blood. Two critical factors for achieving high reprogramming efficiencies&#160;are: 1) the use of a 2A &#34;self-cleavage&#34; peptide to link OCT4 and SOX2, thus achieving equimolar expression of the two factors; 2) the use of two vectors to express MYC and KLF4 individually. Here we describe a step-by-step protocol for generating integration-free iPSCs from adult peripheral blood samples. The generated iPSCs are integration-free as residual episomal plasmids are undetectable after five passages. Although the reprogramming efficiency is comparable to that of Sendai Virus (SV) vectors, EV plasmids are considerably more economical than the commercially available SV vectors. This affordable EV reprogramming system holds potential for clinical applications in regenerative medicine and provides an approach for the direct reprogramming of PB MNCs to integration-free mesenchymal stem cells, neural stem cells, etc.

This protocol describes a detailed method for efficient generation of integration-free iPSCs from human adult peripheral blood cells. With the use of four oriP/EBNA-based episomal vectors to express the reprogramming factors, KLF4, MYC, BCL-XL, or OCT4 and SOX2, thousands of iPSC colonies can be obtained from 1 mL of peripheral blood.

エピソームベクトルを用いたヒト末梢血単核細胞からの統合フリー人工多能性幹細胞の生成

Induced Pluripotent Stem Cells (iPSCs) hold great promise for disease modeling and regenerative therapies. We previously reported the use of Episomal ...

Generation of Defined Genomic Modifications Using CRISPR-CAS9 in Human Pluripotent Stem Cells

Human pluripotent stem cells offer a powerful system to study gene function and model specific mutations relevant to disease. The generation of precise heterozygous genetic modifications is challenging due to CRISPR-CAS9 mediated indel formation in the second allele. Here, we demonstrate a protocol to help overcome this difficulty by using two repair templates in which only one expresses the desired sequence change, while both templates contain silent mutations to prevent re-cutting and indel formation. This methodology is most advantageous for gene editing coding regions of DNA to generate isogenic control and mutant human stem cell lines for studying human disease and biology. In addition, optimization of transfection and screening methodologies have been performed to reduce labor and cost of a gene editing experiment. Overall, this protocol is widely applicable to many genome editing projects utilizing the human pluripotent stem cell model.

This protocol provides a method to facilitate the generation of defined heterozygous or homozygous nucleotide changes using CRISPR-CAS9 in human pluripotent stem cells.

ヒト多能性幹細胞におけるCRISPR-CAS9を用いて定義されたゲノム修飾の生成

Human pluripotent stem cells offer a powerful system to study gene function and model specific mutations relevant to disease. The generation of precise ...

PDACおよび膵臓細胞の人工多能性幹細胞へのリプログラミング

Reprogramming Pancreatic Ductal Adenocarcinoma to Pluripotency

The generation of induced pluripotent stem cells (iPSCs) using transcription factors has been achieved from almost any differentiated cell type and has proved highly valuable for research and clinical applications. Interestingly, iPSC reprogramming of cancer cells, such as pancreatic ductal adenocarcinoma (PDAC), has been shown to revert the invasive PDAC phenotype and override the cancer epigenome. The differentiation of PDAC-derived iPSCs can recapitulate PDAC progression from its early pancreatic intraepithelial neoplasia (PanIN) precursor, revealing the molecular and cellular changes that occur early during PDAC progression. Therefore, PDAC-derived iPSCs can be used to model the earliest stages of PDAC for the discovery of early-detection diagnostic markers. This is particularly important for PDAC patients, who are typically diagnosed at the late metastatic stages due to a lack of reliable biomarkers for the earlier PanIN stages. However, reprogramming cancer cell lines, including PDAC, into pluripotency remains challenging, labor-intensive, and highly variable between different lines. Here, we describe a more consistent protocol for generating iPSCs from various human PDAC cell lines using bicistronic lentiviral vectors. The resulting iPSC lines are stable, showing no dependence on the exogenous expression of reprogramming factors or inducible drugs. Overall, this protocol facilitates the generation of a wide range of PDAC-derived iPSCs, which is essential for discovering early biomarkers that are more specific and representative of PDAC cases.

著者スポットライト:がん細胞のiPS細胞へのリプログラミングによる疾患の進行と治療標的の研究

The present protocol describes the reprogramming of Pancreatic Ductal Adenocarcinoma (PDAC) and normal pancreatic ductal epithelial cells into induced pluripotent stem cells (iPSCs). We provide an optimized and detailed, step-by-step procedure, from preparing lentivirus to establishing stable iPSC lines.

膵管腺癌の多能性へのリプログラミング

The generation of induced pluripotent stem cells (iPSCs) using transcription factors has been achieved from almost any differentiated cell type and has ...

がん研究

Efficient Generation Human Induced Pluripotent Stem Cells from Human Somatic Cells with Sendai-virus

A few years ago, the establishment of human induced pluripotent stem cells (iPSCs) ushered in a new era in biomedicine. Potential uses of human iPSCs include modeling pathogenesis of human genetic diseases, autologous cell therapy after gene correction, and personalized drug screening by providing a source of patient-specific and symptom relevant cells. However, there are several hurdles to overcome, such as eliminating the remaining reprogramming factor transgene expression after human iPSCs production. More importantly, residual transgene expression in undifferentiated human iPSCs could hamper proper differentiations and misguide the interpretation of disease-relevant in vitro phenotypes. With this reason, integration-free and/or transgene-free human iPSCs have been developed using several methods, such as adenovirus, the piggyBac system, minicircle vector, episomal vectors, direct protein delivery and synthesized mRNA. However, efficiency of reprogramming using integration-free methods is quite low in most cases.
Here, we present a method to isolate human iPSCs by using Sendai-virus (RNA virus) based reprogramming system. This reprogramming method shows consistent results and high efficiency in cost-effective manner.

Here, we present our established method to reprogram human somatic cells into transgene-free human iPSCs with Sendai virus, which shows consistent outcome and enhanced efficiency.

仙台ウイルスのヒト体細胞からの効率的な次世代ヒューマン誘導多能性幹細胞

A few years ago, the establishment of human induced pluripotent stem cells (iPSCs) ushered in a new era in biomedicine. Potential uses of human iPSCs ...

効率的な生成および CRISPR Cas9 システムを用いた人間の膵臓細胞から Ips をフィーダーフリーの編集

要約

さらに動画を探す

この動画の章

hiPSC神経系統を効率的に生成するCRISPRを使用して特定のノック記者/ Cas9とCas9ダブルニッカーゼシステム

ヒト膵臓の開発にリネージュの決定要因を問い合わせるためのゲノム編集とhPSCsの指向性分化

フィーダーフリー条件にセンダイウイルスを用いてヒト末梢T細胞から人工多能性幹細胞の生成

人間でタグ内因性のタンパク質誘導多能性幹細胞 CRISPR/Cas9 を使用して

エピソームベクトルを用いたヒト末梢血単核細胞からの統合フリー人工多能性幹細胞の生成

ヒト多能性幹細胞におけるCRISPR-CAS9を用いて定義されたゲノム修飾の生成

膵管腺癌の多能性へのリプログラミング

膵管腺癌の多能性へのリプログラミング

膵管腺癌の多能性へのリプログラミング

仙台ウイルスのヒト体細胞からの効率的な次世代ヒューマン誘導多能性幹細胞

効率的な生成および CRISPR Cas9 システムを用いた人間の膵臓細胞から Ips をフィーダー フリーの編集

要約

さらに動画を探す

この動画の章

hiPSC神経系統を効率的に生成するCRISPRを使用して特定のノック記者/ Cas9とCas9ダブルニッカーゼシステム

ヒト膵臓の開発にリネージュの決定要因を問い合わせるためのゲノム編集とhPSCsの指向性分化

フィーダーフリー条件にセンダイウイルスを用いてヒト末梢T細胞から人工多能性幹細胞の生成

人間でタグ内因性のタンパク質誘導多能性幹細胞 CRISPR/Cas9 を使用して

エピソームベクトルを用いたヒト末梢血単核細胞からの統合フリー人工多能性幹細胞の生成

ヒト多能性幹細胞におけるCRISPR-CAS9を用いて定義されたゲノム修飾の生成

膵管腺癌の多能性へのリプログラミング

膵管腺癌の多能性へのリプログラミング

膵管腺癌の多能性へのリプログラミング

仙台ウイルスのヒト体細胞からの効率的な次世代ヒューマン誘導多能性幹細胞

効率的な生成および CRISPR Cas9 システムを用いた人間の膵臓細胞から Ips をフィーダーフリーの編集