Name: adsc-sheet transplantation to prevent stricture after extended esophageal endoscopic submucosal dissection
Uploaded: 2017-02-10T13:00:00
Description: Watch this Scientific Journal Video about ADSC-sheet Transplantation to Prevent Stricture after Extended Esophageal Endoscopic Submucosal Dissection at JoVE.com

This study was supported and funded by the Avenir Foundation (Fondation de l'Avenir, 255 rue de Vaugirard, 75719 Paris cedex 15, Paris, France). This study would never have been conducted without the precious help of the veterinary team of the Laboratory of Biosurgical Research from the Alain Carpentier Foundation.

Todos os animais foram tratados de acordo com a Comissão de Ética em Pesquisa Animal (orientações do Ministério da Agricultura francês). O protocolo recebeu a aprovação do comitê de ética local autorizado para experimentações com animais na Descartes Universidade Paris (número registrado MESR 2.035,02; Faculdade de Medicina de Paris Descartes, Paris, França). 1. ADSC Cultura e Etiquetagem <ol><li> Obter ADSCs confirmados de uma instituição privada. Culturas ADSCs alogénicas a 37 ° C e 5% de C...

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Neste modelo suíno, o transplante ADSC folhas foi tecnicamente bem sucedida, ea avaliação in vivo pCLE permitido para monitoramento enxerto de células. As avaliações clínicas, endoscópicos, radiológicos e histológicos demonstraram a eficácia da folha ADSC endoscópica na prevenção de estenose esofágica após ESD estendida. O transplante endoscópica de uma solução ADSC glicerol contendo uma folha de carmim indigo é uma abordagem inovadora em medicina regenerativa. O...

A gestão de tumores esofágicos superficial mudou com o desenvolvimento de novas técnicas endoscópicas. Hoje em dia, a ressecção endoscópica é o tratamento de primeira linha. Na verdade, ele é associado com menores taxas de morbidade e mortalidade do que uma cirurgia com a igualdade de resultados oncológicos 1, 2, 3. ressecção endoscópica da mucosa (EMR) e ressecção endoscópica da submucosa (ESD) são as técnicas mais amplamente utilizados. No caso de um tumor superficial prolongado, ESD é preferido. Comparado ao EMR, ESD permite en ressecção bloco, independentemente do tamanho da lesão e moldar 4, 5, 6. A principal complicação tardia de ESD é a formação de estenose de esôfago, o que geralmente ocorre entre uma e duas semanas após a ressecção. Estudos publicados recentes têm demonstrado que a formação de estenose está correlacionada com atamanho da ressecção. O japonês endoscópica Society recomenda evitar ESD tamanho superior a ¾ da circunferência do esôfago porque eles estão associados com o desenvolvimento de estenose em mais de 90% dos casos e são responsáveis ​​por problemas de alimentação graves e grande deterioração da qualidade de vida. A prevenção da estenose de esôfago continua sendo um desafio. Mecanismos envolvidos na formação de estenose são apenas parcialmente conhecida. Estenose formações parece resultar da associação de dois mecanismos diferentes: (1) o recrutamento celular pró-inflamatórios e (2) o desenvolvimento de fibrose excessiva 7. Vários tratamentos preventivos têm sido propostos. No entanto, os resultados não foram satisfatórios, com pouco benefício e efeitos colaterais graves 8, 9. Recentemente, uma equipe japonesa, Ohki et al. , Proposto para transplantar uma folha de células de camada única de células da mucosa oral autólogas para o esophcicatriz ageal. O transplante foi realizado imediatamente após ESD 10, 11. Eles demonstraram a eficácia desta abordagem inovadora, primeiro num modelo canino e, em seguida, em pacientes. células estromais derivadas de tecido adiposo (ADSCs) são promissores na medicina regenerativa. A sua aplicação em vários campos tem mostrado resultados interessantes, especialmente no processo de cicatrização de feridas. Terapia ADSC oferece várias vantagens, porque as células são facilmente isoladas e estão associados com propriedades anti-inflamatórias, efeitos imunomoduladores locais, indução neovascularização, e habilidades de diferenciação em mesenquimais e linhagens não-mesenquimais 12, 13, 14. Em um estudo anterior, a nossa equipa demonstrou a eficácia do transplante endoscópica dupla ADSC folhas para prev estenose esofágicaenção após ESD estendida em um modelo suíno 15. Neste artigo, os relatos de construção ADSC folhas e técnica de transplante endoscópico são apresentados.

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	<tbody>
		<tr height="20">
			<td height="20" style="height:20px;width:313px;">Transparent endoscopic cap Q180 compatible</td>
			<td style="width:159px;">Olympus Optical Co</td>
			<td style="width:107px;"></td>
			<td style="width:492px;"></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">GIF-Q180 gastroscope&#160;</td>
			<td>Olympus Optical Co</td>
			<td></td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Videoscope System Exera II&#160;</td>
			<td>Olympus Optical Co</td>
			<td></td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Injection needle 18 G</td>
			<td>Olympus Optical Co</td>
			<td></td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Electrosurgery unit ERBE ICC 350&#160;</td>
			<td>ERBE Technology</td>
			<td></td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Indigo carmin 1%</td>
			<td>Life</td>
			<td></td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Endoscopic hybrid knife</td>
			<td>Life</td>
			<td></td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Minisonde Z pCLE green probe</td>
			<td>Mauna Kea Technology</td>
			<td></td>
			<td>You must learn how tu use the probe. The manipulation could be difficult</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Fetal bovine serum</td>
			<td>Sigma Aldrich</td>
			<td>12105C</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Trypsin</td>
			<td>Sigma Aldrich</td>
			<td>T146</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Alpha minimum essential medium</td>
			<td>Thermo Fisher</td>
			<td>22561-021</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Phosphate-Buffered Salines</td>
			<td>Thermo Fisher</td>
			<td>10010-023</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">PKH67 dye kit</td>
			<td>Sigma Aldrich</td>
			<td>Mini67-KT</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">12-well temperature responsive cell culture dish</td>
			<td>Upcell Thermo Scientific</td>
			<td align="right">174900</td>
			<td>Feel the weel with 4 mL standard medium culture 30 minutes before seeding cells</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Esomeprazole 40 mg&#160;</td>
			<td>Biogaran</td>
			<td></td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Moprhine sulfate 50 mg/ mL</td>
			<td>Lavoisier</td>
			<td></td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Amoxicilline 1 g</td>
			<td>Biogaran</td>
			<td></td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Ketamine 250 mg/5 mL</td>
			<td>Panpharma</td>
			<td></td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Propofol 10 mg/ mL</td>
			<td>Fresenius</td>
			<td></td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Hydrophobic paper</td>
			<td>Carrefour</td>
			<td></td>
			<td></td>
		</tr>
	</tbody>
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adsc-sheet transplantation to prevent stricture after extended esophageal endoscopic submucosal dissection

Nos últimos anos, a construção de folhas de células estimulou grande interesse na medicina regenerativa, especialmente para procedimentos de cirurgia reconstrutiva. O desenvolvimento de tecnologias diversificadas que combinam células estromais derivadas de tecido adiposo (ADSCs) com vários biomateriais levou à construção de vários tipos de substitutos de engenharia de tecidos, tais como osso, cartilagem e tecidos adiposos de roedor, de porcino, ou ADSCs humanos. esofágico dissecção submucosa endoscópica estendida (ESD) é responsável pela formação de estenose de esôfago. prevenção de estenose continua sendo um desafio, sem tratamentos eficazes disponíveis. Estudos anteriores relataram a eficácia do transplante de folhas de células da mucosa no modelo canino e em seres humanos. ADSCs são atribuídas propriedades anti-inflamatórias, efeitos de modulação imunes locais, indução neovascularização e habilidades diferenciação em mesenquimais e linhagens não-mesenquimais. Este estudo original descreve o tra endoscópicansplantation de uma construção da engenharia de tecidos ADSC para evitar estenose esofágica em um modelo suína. A construção ADSC foi composta de duas folhas adsc alogénicos em camadas umas sobre as outras em uma membrana de suporte de papel. As ADSCs foram marcadas com o fluororo PKH67 para permitir à base de sonda endomicroscopy de laser confocal de monitorização (pCLE). No dia do transplante, efectuou-se uma 5-cm e ESD hemi-circunferencial que se sabe induzir estenose esofágica. Os animais foram imediatamente endoscopicamente transplantado com 4 construções adsc. A completa adesão das construções adsc foi obtido após 10 min de aplicação suave. Os animais foram sacrificados no dia 28. Todos os animais foram transplantados com sucesso. O transplante foi confirmada no dia 3 com uma avaliação pCLE positivo. Em comparação com animais transplantados, animais de controle desenvolvido restrições graves, com maior desenvolvimento do tecido fibrótico, o problema alimentar mais frequente, e ganho de peso reduzido. No nosso modelo, o transplante de allogenic ADSCs, organizadas em folhas de células duplas, depois de ESD estendida foi bem sucedida e fortemente associada com uma taxa de estreitamento esofágico inferior.

A cultura de ADSCs e o procedimento para obter a folha de ADSC é mostrado na Figura 1. A Figura 2 mostra a construção do enxerto, composto por duas folhas adsc em camadas umas sobre as outras na sua membrana de suporte de papel. ADSCs foram previamente marcado com o fluoróforo PKH67 para permitir a entrada de monitorização do enxerto vivo com pCLE. A Figura 3 mostra as diferentes etapas de dissecção esofágica s...

Watch this Scientific Journal Video about ADSC-sheet Transplantation to Prevent Stricture after Extended Esophageal Endoscopic Submucosal Dissection at JoVE.com

ADSC-sheet Transplantation to Prevent Stricture after Extended Esophageal Endoscopic Submucosal Dissection

Este estudo relata um método bem-sucedido de células adiposo endoscópica derivadas de tecido do estroma (ADSC) em folha transplante para a prevenção de estenose esofágica após uma dissecção endoscópica da submucosa estendida (ESD) em suínos.

ADSC folhas transplante para prevenir a estenose após estendido esofágico endoscópica submucosa Dissection

In past years, the cell-sheet construct has spurred wide interest in regenerative medicine, especially for reconstructive surgery procedures. The ...

Research

JoVE Journal

Medicine

Non-invasive Imaging of Acute Allograft Rejection after Rat Renal Transplantation Using 18F-FDG PET

Non-invasive Imaging of Acute Allograft Rejection after Rat Renal Transplantation Using 18F-FDG PET

Imagem não invasivo de rejeição do enxerto aguda após Rat Transplante Renal Usando<sup&gt; 18</sup&gt; F-FDG PET

The number of patients with end-stage renal  disease, and the number of kidney allograft recipients continuously increases.  Episodes of acute cellular ...

Medicina

Intrasplenic Transplantation of Hepatocytes After Partial Hepatectomy in NOD.SCID Mice

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Partial hepatectomy is a versatile and reproducible method to study liver regeneration and the effect of cell based therapeutics in various pathological ...

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The middle ear is located in the center of the temporal bone and bears a highly complex anatomy. The recently introduced exclusively endoscopic transcanal ...

Transplantation of Adipose Tissue-Derived Stem Cell Sheet to Reduce Leakage After Partial Colectomy in A Rat Model

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Anastomotic leakage is a disastrous complication after colorectal surgery. Although current methods for leakage prevention have different levels of ...

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The rat orthotopic liver transplantation (OLT) model is a powerful tool to study acute and chronic rejection. However, it is not a complete representation ...

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In addition to typical reflux symptoms, many patients with gastroesophageal reflux disease (GERD) present with extraesophageal symptoms such as cough, ...

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One of the major issues facing current cardiac stem cell therapies for preventing postinfarct heart failure is the low retention and survival rates of ...

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The MACCS (Medical Assistant for Chronic Care Service) platform enables secure sharing of key medical information between patients after kidney ...

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Cirurgia endoscópica de Cholesteatoma

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Liver transplantation is regarded as the gold standard for the treatment of a variety of fatal hepatic diseases. However, unsolved issues of chronic graft ...