Name: a time-lapse, label-free, quantitative phase imaging study of dormant and active human cancer cells
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作者は感謝して乳房がん研究振興財団と高度な医療研究財団のサポートを認めます。

ここで説明したすべてのメソッドは、ボストン子供病院制度バイオ セーフティ委員会によって承認されています。
1. セル準備
<ol><li>
KHOS A を融解し、-n 個のセル
	<ol>
<li>ウォーム アップ培地、すなわち、ダルベッコ修飾イーグル培 10% (巻/巻) 牛胎児血清 (FBS) と 1% (巻/巻) ペニシリン/ストレプトマイシン。</li>
		<li>液体窒素タンクからセルのセラム ?...

<ol>
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A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Molecular+regulation+of+tumor+angiogenesis:+mechanisms+and+therapeutic+implications.">Molecular regulation of tumor angiogenesis: mechanisms and therapeutic implications.</a> EXS. (96), 223-268 (2006).</li><li>Naumov, G. N., 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=A+model+of+human+tumor+dormancy:+an+angiogenic+switch+from+the+nonangiogenic+phenotype.">A model of human tumor dormancy: an angiogenic switch from the nonangiogenic phenotype.</a> Journal of the National Cancer Institute. 98 (5), 316-325 (2006).</li><li>Fang, J., 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=Matrix+metalloproteinase-2+is+required+for+the+switch+to+the+angiogenic+phenotype+in+a+tumor+model.">Matrix metalloproteinase-2 is required for the switch to the angiogenic phenotype in a tumor model.</a> Proceedings of the National Academy of Sciences of the United States of America. 97 (8), 3884-3889 (2000).</li><li>Almog, N., 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=Transcriptional+switch+of+dormant+tumors+to+fast-growing+angiogenic+phenotype.">Transcriptional switch of dormant tumors to fast-growing angiogenic phenotype.</a> Cancer Research. 69 (3), 836-844 (2009).</li><li>Hu, J., 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=Gene+expression+signature+for+angiogenic+and+nonangiogenic+non-small-cell+lung+cancer.">Gene expression signature for angiogenic and nonangiogenic non-small-cell lung cancer.</a> Oncogene. 24 (7), 1212-1219 (2005).</li><li>Harper, J., 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=Repression+of+vascular+endothelial+growth+factor+expression+by+the+zinc+finger+transcription+factor+ZNF24.">Repression of vascular endothelial growth factor expression by the zinc finger transcription factor ZNF24.</a> Cancer Research. 67 (18), 8736-8741 (2007).</li><li>Jia, D., 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=Transcriptional+repression+of+VEGF+by+ZNF24:+mechanistic+studies+and+vascular+consequences+in+vivo.">Transcriptional repression of VEGF by ZNF24: mechanistic studies and vascular consequences in vivo.</a> Blood. 121 (4), 707-715 (2013).</li><li>Jia, D., Huang, L., Bischoff, J., Moses, M. 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本研究生体外で、非侵襲的、無料のラベルを用いた QPI ひと骨肉腫細胞の血管新生と血管新生以外の表現型を特徴づける定量的をについて説明します。増殖率、倍加時間、移行の率直さ、運動速度、移行と運動細胞容積、セル厚セル領域を含むこの統合、ハイスループット法による細胞の複数のパラメーターを同時に分析されています。
細胞の形態や細胞の挙動を...

開発・進行固形腫瘍の初期のチェックポイントの 1 つは、血管新生形質、がんの特徴の習得です。この進行には、様々 な生化学的・分子過程1,2,3が含まれます。腫瘍の進行のこの重要なステップにおける技術的な課題は、継続的かつ定量的評価し、公平な方法で生きているがん細胞の血管新生と血管新生以外の表現型を区別するためのツールの欠如です。通常血管新生と非血管新生細胞の細胞の挙動を調査するために使用されている伝統的な試金は高価な試薬・機器を必要とする、たとえば、細胞増殖・遊走アッセイ4,5、 6,7,8,9,10、11,12,13,14か高い専門性と集中を必要とすると同様に相補的な生体内評価4,5,6,8,15,16、時間と労働消費。
最近では、定量位相イメージング (QPI) は、様々 な細胞形態および動作パラメーター17,18,19,の時間経過およびラベリング無料評価を可能にする手法として浮上しています。20,21,22. 従来の光学顕微鏡とは異なり QPI を定量化位相差画素ごとのバリエーション光、光物体を通り抜けるし、変換の光学的厚さとボリューム、自筆を再構築後、直通ができ生きているセル、次の機能の解析: (4) 同時多重パラメーター イメージング (3) ラベル無料画像、(2) 非侵襲とタイムラプス イメージング (1) 定量的イメージング。これらの機能は、QPI に評価し、細胞レベルで病態を理解するための強力なツールを作る。
最近の研究で我々 は定量的評価し、血管新生を区別する QPI を利用 KHOS A および体系的かつ定量的に、細胞形態の分析を組み合わせることでひと骨肉腫細胞の非血管新生 KHOS N の表現型増殖、および運動23。血管新生と血管新生以外のひと骨肉腫細胞の細胞形態および行動のパラメーターを比較した定量的画像解析ソフト、パネルを使用して、5 つの特徴的な違いは、これらの 2 つの識別されました。表現型。この手法は、さまざまな生物学的に関連する細胞の特性を評価するため統合と定量的なプラットフォームを提供します。

<table border="0" cellpadding="0" cellspacing="0" width="908">
	<tbody>
		<tr height="33">
			<td height="33" style="height:34px;width:227px;">T75 flask</td>
			<td style="width:227px;">Corning, NY, USA</td>
			<td style="width:227px;">353136</td>
			<td style="width:227px;"></td>
		</tr>
		<tr height="33">
			<td height="33" style="height:34px;width:227px;">6-well plates&#160;</td>
			<td style="width:227px;">Corning, NY, USA</td>
			<td style="width:227px;">3506</td>
			<td></td>
		</tr>
		<tr height="48">
			<td height="48" style="height:48px;width:227px;">Dulbecco&#8217;s modified Eagle medium (DMEM)</td>
			<td style="width:227px;">Thermo Fisher Scientific, MA, USA</td>
			<td style="width:227px;">11965092</td>
			<td></td>
		</tr>
		<tr height="33">
			<td height="33" style="height:34px;width:227px;">Fetal bovine serum (FBS)&#160;</td>
			<td style="width:227px;">Atlanta Biologicals, GA, USA</td>
			<td style="width:227px;">S11550</td>
			<td></td>
		</tr>
		<tr height="33">
			<td height="33" style="height:34px;width:227px;">Penicillin Streptomycin</td>
			<td style="width:227px;">Thermo Fisher Scientific, MA, USA</td>
			<td style="width:227px;">15140122</td>
			<td></td>
		</tr>
		<tr height="33">
			<td height="33" style="height:34px;width:227px;">Phosphate buffered saline (PBS)</td>
			<td style="width:227px;">Thermo Fisher Scientific, MA, USA</td>
			<td style="width:227px;">10010023</td>
			<td></td>
		</tr>
		<tr height="33">
			<td height="33" style="height:34px;width:227px;">Beckman Z1 Coulter counter</td>
			<td style="width:227px;">Beckman Coulter, IN, USA</td>
			<td style="width:227px;">Z1&#160;</td>
			<td></td>
		</tr>
		<tr height="51">
			<td height="51" style="height:51px;width:227px;">HoloMonitor M4</td>
			<td style="width:227px;">Phase Holographic Imaging Phi AB, Lund, Sweden</td>
			<td style="width:227px;">M4</td>
			<td>Microscope</td>
		</tr>
		<tr height="51">
			<td height="51" style="height:51px;width:227px;">Hololid</td>
			<td style="width:227px;">Phase Holographic Imaging Phi AB, Lund, Sweden</td>
			<td style="width:227px;">PHI 8020</td>
			<td></td>
		</tr>
		<tr height="51">
			<td height="51" style="height:51px;width:227px;">HStudioM4</td>
			<td style="width:227px;">Phase Holographic Imaging Phi AB, Lund, Sweden</td>
			<td style="width:227px;">HStudioM4</td>
			<td>Software</td>
		</tr>
	</tbody>
</table>

a time-lapse, label-free, quantitative phase imaging study of dormant and active human cancer cells

血管新生形質の獲得は腫瘍休眠からの脱出の重要なコンポーネントです。これらのメソッドは時間を調査し、非血管新生と血管新生細胞の表現型を特徴付けるいくつかのクラシックの in vitroアッセイ (例えば増殖、移行、および他の人) と体内のモデルが開発されているが労働集約的なと、多くの場合高価な試薬、機器と専門的な技術を必要とします。最近の研究で血管新生と血管新生以外のひと骨肉腫 KHOS 細胞の時間経過およびラベリング-無料の特徴づけを行う新規定量位相イメージング (QPI) を使用しました。細胞の形態・増殖・運動を含む携帯電話のパラメーターのパネルは、定量的に測定したし、QPI を用いています。この小説と定量的アプローチは、継続的に、非侵襲的シンプルで統一された方法で関連する細胞プロセス、動作、およびがん細胞の特性および他の細胞型を勉強する機会を提供します。このレポートでは、セルの準備、QPI 集録、データ分析など当社の実験プロトコルについて説明します。

図 1は、典型的な細胞形態特性を示しています。画像は、ホログラフィー (図 1 aB) と 2次元画像 (図 1D) として掲載されています。(屈折率と光路長から計算) 光学セルの厚さは線またはセル全体の測定で定量化しました。散布図の面積と厚み KHOS A と図 1E<s...

Watch this Scientific Journal Video about A Time-lapse, Label-free, Quantitative Phase Imaging Study of Dormant and Active Human Cancer Cells at JoVE.com

A Time-lapse, Label-free, Quantitative Phase Imaging Study of Dormant and Active Human Cancer Cells

休止状態とアクティブな癌細胞の表現型は、定量的な位相画像を用いた特徴付けられました。細胞の増殖、移行、および形態の試金を統合し、1 つの単純な方法で分析します。

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Studying Triple Negative Breast Cancer Using Orthotopic Breast Cancer Model

交感性乳癌モデルを用いたトリプルネガティブ乳癌の研究

Triple-negative breast cancer (TNBC) is an aggressive breast cancer subtype with limited therapeutic options. When compared to patients with less ...

Combined Conditional Knockdown and Adapted Sphere Formation Assay to Study a Stemness-Associated Gene of Patient-derived Gastric Cancer Stem Cells

患者由来胃癌幹細胞のステム関連遺伝子を研究するための条件付きノックダウンと適応球形成アッセイを組み合わせた

Cancer stem cells (CSCs) are implicated in tumor initiation, development and recurrence after treatment, and have become the center of attention of many ...

Pathological Analysis of Lung Metastasis Following Lateral Tail-Vein Injection of Tumor Cells

腫瘍細胞の横尾静脈注入後の肺転移の病理学的解析

Metastasis, the primary cause of morbidity and mortality for most cancer patients, can be challenging to model preclinically in mice. Few spontaneous ...

Immunofluorescence Imaging of DNA Damage and Repair Foci in Human Colon Cancer Cells

ヒト大腸癌細胞におけるDNA損傷および修復病巣の免疫蛍光イメージング

The purpose of the manuscript is to provide a step-by-step protocol for performing immunofluorescence microscopy to study the radiation-induced DNA damage ...

A Label-Free Segmentation Approach for Intravital Imaging of Mammary Tumor Microenvironment

乳腺腫瘍微小環境の生体内イメージングのためのラベルフリーセグメンテーションアプローチ

The ability to visualize complex and dynamic physiological interactions between numerous cell types and the extracellular matrix (ECM) within a live tumor ...