Name: extended time-lapse intravital imaging of real-time multicellular dynamics in the tumor microenvironment
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Description: Watch this Scientific Journal Video about Extended Time-lapse Intravital Imaging of Real-time Multicellular Dynamics in the Tumor Microenvironment at JoVE.com

Bu araştırma ödül sayısı (ASH, W81XWH-13-1-0010) kapsamında Savunma Bakanlığı Meme Kanseri Araştırma Programı, NIH CA100324, PPG CA100324 ve Entegre Görüntüleme Programı tarafından desteklenmiştir.

açıklanan tüm işlemler Tıp Kurumsal Hayvan Bakımı ve Kullanımı Komitesi Albert Einstein College of tarafından önceden onay da dahil olmak üzere omurgalı hayvanların kullanımı için kurallara ve yönetmeliklere uygun olarak yapılmalıdır. 1. Getirici floresanla işaretlenmiş tümörler ve tümör bağlantılı makrofajlar <ol><li> Gelişmiş yeşil floresan fare meme tümörü virüsü uzun terminal tekrarı, yani fluoresan muhabir [transgenik fareler polioma orta T antijenini (MMTV ...

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tümör mikroçevresinde kendiliğinden meydana gelen hücresel etkileşimler, tümör hücre hareketliliği ve intravasation değişikliklere yol açabilir. Canlı tümör dokusunun yüksek çözünürlüklü intravital görüntüleme son derece geçici 10,13,24 olabilir çok hücreli dinamikleri görselleştirme izin verir. Tümörün mikro süreçlerin moleküler mekanizmaları hakkında gerekli bilgi verebilir ayrık zamanlı noktaları ile elde edilen in vivo deneylerde veya time-lapse gör?...

primer meme tümörü tümör hücrelerinin yayılması makrofajlar ve endotel hücreleri dahil olmak üzere stromal hücreler sadece tümör hücrelerini içerir, ancak ana bilgisayar gösterilmiştir. Bundan başka, tümör damar sistemi artan geçirgenliği 1 anormaldir. Bu durumda, tümör hücreleri, makrofajlar ve endotelial hücreler, primer tümör mikro-vasküler geçirgenliği ve tümör hücre intravasation aracılık etkileşim belirleyen anlaşılması metastaz için önemlidir. damar geçirgenliği, tümör hücre intravazasyonunda ve tümör mikroçevresinde çok hücreli etkileşimler altında yatan sinyal mekanizmasının kinetik anlama anti-kanser tedavilerinin geliştirilmesine ve yönetiminde önemli bilgiler sağlayabilir. In vivo olarak tümör damar geçirgenliğini incelemek birincil yöntemi Evans Mavi 2, yüksek molekül ağırlıklı dekstranlar (155 kDa) halinde ekstravasküler boyalar ölçülmesi olmuşturBoyanın enjeksiyonundan sonra sabit bir zaman noktalarında 3 ve florofor ya da (albümin dahil) Radyoaktif-konjüge proteinler 4. Mikroskopi Gelişmeler, hayvan modelleri ve floresan boyalar intravital mikroskobiyle 5 boyunca hücresel süreçleri ve canlı hayvan vasküler geçirgenliğin görselleştirme sağlamıştır. Birkaç kez puan üzerinden statik görüntülerin, ya da kısa time-lapse dizilerinin satın alarak Canlı hayvan görüntüleme tümörün mikro 6,7 dinamik olayların anlaşılması için izin vermez. Nitekim, 24 saat boyunca statik bir görüntü elde etme tümör damar ancak damar geçirgenliği dinamikleri 6 gözlenmemiştir, sızdıran olduğunu göstermiştir. Böylece, 12 saate kadar uzatılmış sürekli time-lapse görüntüleme tümör mikroçevresinde dinamik olayların kinetik yakalar. Bu protokol, uzun bir zaman atlamalı multiphot kullanımını tarif ederintravital mikroskopi tümör mikro-dinamik çok hücreli olayları incelemek için. tümör mikroçevresinde birden fazla hücre tipleri enjekte edilebilir boyalarla veya floresan proteinleri ifade transgenik hayvanlar kullanılarak etiketlenir. vasküler boyalar veya proteinler görüntüleme başladıktan sonra enjekte edilebilir bir kuyruk damarından sonda kullanılarak tümör mikro çok hücreli olayların kinetik veriler elde etmek için. canlı hücre görüntüleme için meme tümörü deri bir kapakla cerrahi hazırlık aracılığıyla maruz kalmaktadır. Görüntüler birden photomultiplier tüpler (PMT) dedektörleri 8 ile donatılmış bir multiphoton mikroskop kullanarak 12 saate kadar için edinilir. Uygun filtreleri kullanarak, bir çıkarma algoritması tümörün mikro aynı anda 9 5 floresan sinyalleri elde etmek 4 PMT dedektörleri sağlar. Yüksek çözünürlüklü multiphoton İntra vital mikroskopik daha iyi bir yol, tümörün mikro tümör stromanın etkileşimleri, tek bir hücre çözünürlüklü görüntü yakalar Uvasküler geçirgenlik ve tümör hücre intravasation 10-13 nderstanding. Spesifik olarak, bir tümör hücresi, bir makrofaj ve endotel hücre arasındaki etkileşimi bölgelerde seçici meydana genişletilmiş intravital görüntüleme ortaya yüksek derecede lokalize edilen, geçici vasküler geçirgenlik etkinlik 13 (metastaz, TMEM 14 tümör mikro-olarak tanımlanmıştır). Bundan başka, tümör hücre intravasation, sadece TMEM gerçekleşir ve uzamsal ve geçici olarak vasküler geçirgenliği 13 ile ilişkilidir. Bu olayların dinamiklerinin tek hücreli çözünürlükte tümör mikroçevresinde floresan işaretli hücrelerin uzun time-lapse multiphoton mikroskobu kullanımı ile mümkün olmuştur.

<table border="0" cellpadding="0" cellspacing="0" width="637">
	<tbody>
		<tr height="63">
			<td height="63" style="height:63px;width:248px;">155 kDa dextran-tetramethylrhodamine isothiocyanate</td>
			<td style="width:95px;">Sigma Aldrich</td>
			<td style="width:128px;">T1287</td>
			<td style="width:167px;">reconstitute at 20 mg/mL in 1 X PBS</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:248px;">70 kDa dextran-Texas Red</td>
			<td style="width:95px;">Life Technologies</td>
			<td style="width:128px;">D-1830</td>
			<td>reconstitute at 10 mg/mL in 1 X PBS</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:248px;">10 kDa dextran-fluorescein isothyocyanate</td>
			<td style="width:95px;">Sigma Aldrich</td>
			<td style="width:128px;">FD10S</td>
			<td>reconstitute at 20 mg/mL in 1 X PBS</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:248px;">Qdot 705 ITK Amino (PEG) Quantum Dots</td>
			<td style="width:95px;">Life Technologies</td>
			<td style="width:128px;">Q21561MP</td>
			<td>Dilute 25 uL in 175 uL of 1 X PBS for injection</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:248px;">MMTV-PyMT mice</td>
			<td style="width:95px;">Jackson Laboratory</td>
			<td align="right" style="width:128px;">2374</td>
			<td></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:248px;">Csf1r-ECFP mice (Csf1r-Gal4/VP16,UAS-ECFP)</td>
			<td style="width:95px;">Jackson Laboratory</td>
			<td align="right" style="width:128px;">26051</td>
			<td></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:248px;">Csf1r-EGFP mice</td>
			<td style="width:95px;">Jackson Laboratory</td>
			<td align="right" style="width:128px;">18549</td>
			<td></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:248px;">1 x PBS</td>
			<td style="width:95px;">Life Technologies</td>
			<td style="width:128px;"></td>
			<td></td>
		</tr>
		<tr height="63">
			<td height="63" style="height:63px;width:248px;">Isoethesia (isoflurane)</td>
			<td style="width:95px;">Henry Schein Animal Health</td>
			<td align="right" style="width:128px;">50033</td>
			<td>250 mL</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:248px;">Oxygen</td>
			<td style="width:95px;">AirTech</td>
			<td style="width:128px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:248px;">1 mL syringe, tuberculin slip tip</td>
			<td style="width:95px;">BD</td>
			<td align="right" style="width:128px;">309659</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:248px;">30G x 1 (0.3 mm X 25 mm) needle</td>
			<td style="width:95px;">BD</td>
			<td align="right" style="width:128px;">305128</td>
			<td></td>
		</tr>
		<tr height="63">
			<td height="63" style="height:63px;width:248px;">Polyethylene micro medical tubing&#160;</td>
			<td style="width:95px;">Scientific Commodities Inc</td>
			<td style="width:128px;">BB31695-PE/1</td>
			<td>0.28 mm I.D. X 0.64 mm O.D.</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:248px;">Microscope coverglass</td>
			<td style="width:95px;">Corning</td>
			<td style="width:128px;">2980-225</td>
			<td>thickness 1.5, 22 X 50 mm</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:248px;">MouseOx oximeter, software and sensors</td>
			<td style="width:95px;">STARR Life Sciences</td>
			<td style="width:128px;"></td>
			<td></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:248px;">Laboratory tape</td>
			<td style="width:95px;">Fisher Scientific</td>
			<td style="width:128px;">159015R</td>
			<td></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:248px;">soft rubber pad</td>
			<td style="width:95px;">McMaster-Carr</td>
			<td>8514K62</td>
			<td>Ultra-Soft Polyurethane Film, 3/16&#8221; Thick, 12&#34; x 12&#34;, 40 Oo Durometer, Plain Back</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:248px;">hard rubber pad</td>
			<td style="width:95px;">McMaster-Carr</td>
			<td>8568K615</td>
			<td>High-Strength Neoprene Rubber Sheet 1/4&#34; Thick, 12&#34; X 12&#34;, 50A Durometer,</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:248px;">Microscope</td>
			<td style="width:95px;">Olympus</td>
			<td style="width:128px;"></td>
			<td>The microscope is a custom built two laser multiphoton microscope based on an Olympus IX-71 stand utilizing a 20x 1.05NA objective lens.&#160;</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:248px;">7-Punch set</td>
			<td style="width:95px;">McMaster-Carr</td>
			<td style="width:128px;">3429A12</td>
			<td>, 1/4&#34; to 1&#34; Hole Diameter, for Hammer-Driven Hole Punch,&#160;</td>
		</tr>
	</tbody>
</table>

extended time-lapse intravital imaging of real-time multicellular dynamics in the tumor microenvironment

In the tumor microenvironment, host stromal cells interact with tumor cells to promote tumor progression, angiogenesis, tumor cell dissemination and metastasis. Multicellular interactions in the tumor microenvironment can lead to transient events including directional tumor cell motility and vascular permeability. Quantification of tumor vascular permeability has frequently used end-point experiments to measure extravasation of vascular dyes. However, due to the transient nature of multicellular interactions and vascular permeability, the kinetics of these dynamic events cannot be discerned. By labeling cells and vasculature with injectable dyes or fluorescent proteins, high-resolution time-lapse intravital microscopy has allowed the direct, real-time visualization of transient events in the tumor microenvironment. Here we describe a method for using multiphoton microscopy to perform extended intravital imaging in live mice to directly visualize multicellular dynamics in the tumor microenvironment. This method details cellular labeling strategies, the surgical preparation of a mammary skin flap, the administration of injectable dyes or proteins by tail vein catheter and the acquisition of time-lapse images. The time-lapse sequences obtained from this method facilitate the visualization and quantitation of the kinetics of cellular events of motility and vascular permeability in the tumor microenvironment.

Genişletilmiş zaman atlamalı intravital mikroskopi tümör mikroçevresinde çok hücreli süreçlerin tek bir hücre çözünürlükte görüntüleme sağlıyor. floresan etiketleme tümör hücreleri, makrofajlar, vasküler alan, ikinci harmonik oluşumu sinyali kullanılarak kolajen lif şebekesi görselleştirerek, tümörün mikro birden fazla bölme aynı zamanda görüntüleme sırasında izlenir. Dendra2 (Şekil 1A) ile etiketlenmiş meme tümörü hücreleri,...

Watch this Scientific Journal Video about Extended Time-lapse Intravital Imaging of Real-time Multicellular Dynamics in the Tumor Microenvironment at JoVE.com

Extended Time-lapse Intravital Imaging of Real-time Multicellular Dynamics in the Tumor Microenvironment

Bu protokol, tek bir hücre çözünürlükte in vivo olarak, gerçek zamanlı olarak çok-etkileşimlerin uzatılmış zaman atlamalı görüntüleme gerçekleştirmek için multiphoton mikroskobu kullanımını tarif eder.

Tümör mikroçevresinde Gerçek zamanlı Multisellüler Dynamics Genişletilmiş Time-lapse intravital Görüntüleme

In the tumor microenvironment, host stromal cells interact with tumor cells to promote tumor progression, angiogenesis, tumor cell dissemination and ...

Research

JoVE Journal

Medicine

Multispectral Real-time Fluorescence Imaging for Intraoperative Detection of the Sentinel Lymph Node in Gynecologic Oncology

Jinekolojik Onkoloji Sentinel lenf nodu intraoperatif Algılama için Multispektral Gerçek zamanlı Floresans Görüntüleme

The prognosis in virtually all solid tumors depends on the presence or absence of lymph node metastases.1-3 Surgical treatment most often combines radical ...

Evaluation of Nanoparticle Uptake in Tumors in Real Time Using Intravital Imaging

Intravital Görüntüleme Gerçek Zamanlı tümörler Nanopartikül Alımı Değerlendirme

Current technologies for tumor imaging, such as ultrasound, MRI, PET and CT, are unable to yield high-resolution images for the assessment of nanoparticle ...

MAME Models for 4D Live-cell Imaging of Tumor: Microenvironment Interactions that Impact Malignant Progression

Tümör 4D Canlı hücre Görüntüleme için MAME Modeller: Mikroçevre etkileşimler olduğunu Etki Malign İlerlemesi

We have developed 3D coculture models, which we term MAME (mammary architecture and microenvironment engineering), and used them for live-cell imaging in ...

Real-time Digital Imaging of Leukocyte-endothelial Interaction in Ischemia-reperfusion Injury (IRI) of the Rat Cremaster Muscle

Real-time Digital Imaging of Leukocyte-endothelial Interaction in Ischemia-reperfusion Injury IRI of the Rat Cremaster Muscle

Sıçan Cremaster&#39;ın kas iskemi-reperfüzyon Hasarı içinde Lökosit-endotelyal Etkileşim Gerçek zamanlı Dijital Görüntüleme (IRI)

Ischemia-reperfusion injury (IRI) has been implicated in a large array of pathological conditions such as cerebral stroke, myocardial infarction, ...

Live Imaging of Drug Responses in the Tumor Microenvironment in Mouse Models of Breast Cancer

Meme Kanseri Fare Modelleri Tümör Mikroçevre İlaç Yanıtlarının Görüntüleme Canlı

The tumor microenvironment plays a pivotal role in tumor initiation, progression, metastasis, and the response to anti-cancer therapies. Three-dimensional ...

Time-lapse Imaging of Primary Preneoplastic Mammary Epithelial Cells Derived from Genetically Engineered Mouse Models of Breast Cancer

Birincil Preneoplastic Meme Epitel Hücrelerinin Time-lapse görüntüleme Meme Kanseri Genetik Fare Modelleri türetilen

Time-lapse  imaging can be used to compare behavior of cultured primary preneoplastic  mammary epithelial cells derived from different genetically ...

Transplantation into the Anterior Chamber of the Eye for Longitudinal, Non-invasive In vivo Imaging with Single-cell Resolution in Real-time

Transplantation into the Anterior Chamber of the Eye for Longitudinal, Non-invasive In vivo Imaging with Single-cell Resolution in Real-time

Boyuna, Non-invaziv için Eye Ön Kamara içine Nakli<em&gt; In vivo</emGerçek zamanlı Tek hücreli Çözünürlük&gt; Görüntüleme

Intravital imaging has emerged as an indispensable tool in biological research.  In the process, many imaging techniques have been developed to study ...

Chemotherapy-induced Vascular Toxicity - Real-time In vivo Imaging of Vessel Impairment

Chemotherapy-induced Vascular Toxicity - Real-time In vivo Imaging of Vessel Impairment

Kemoterapi kaynaklı Vasküler Toksisite - Gerçek zamanlı<em&gt; In vivo</em&gt; Gemi Düşüklüğü Görüntüleme

Certain classes of chemotherapies may exert acute vascular changes that may progress into long-term conditions that may predispose the patient to an ...

Confocal Time Lapse Imaging as an Efficient Method for the Cytocompatibility Evaluation of Dental Composites

Diş Kompozit Cytocompatibility Değerlendirme Verimli Yöntemi olarak Confocal Time Lapse Görüntüleme

It is generally accepted that in vitro cell material interaction is a useful criterion in the evaluation of dental material biocompatibility. The ...

Real-time X-ray Imaging of Lung Fluid Volumes in Neonatal Mouse Lung

Yenidoğan Fare Akciğer Akciğer Akışkan Ciltler Gerçek zamanlı X-ışını görüntüleme

At birth, the lung undergoes a profound phenotypic switch from secretion to absorption, which allows for adaptation to breathing independently. Promoting ...