Name: an experimental system to study mechanotransduction in fetal lung cells
Uploaded: 2012-02-16T13:00:00
Description: Watch this Scientific Journal Video about An Experimental System to Study Mechanotransduction in Fetal Lung Cells at JoVE.com

NIH 교부금 HD052670 지원.

1. ECM 단백질과 플레이트의 코팅 <ol><li> 멸균 조건에서 플레이트 당 차가운 멸균 1X PBS의 12 ML과 laminin 120 μg을 섞는다. </li><li> Bioflex 치료 접시를 타고 각 잘으로 솔루션의 2ml를 추가 (laminin의 최종 농도 2 μg / cm 2). 또는 다른 ECM 단백질 같은 콜라겐-1로서 사용될 수 [10 μg / cm 2], fibronectin [5 μg / cm 2], vitronectin [0.5 μg / cm 2]이나 엘라스틴 [10 μg / cm 2]. 코팅 기?...

<ol>
	<li>Sanchez-Esteban, J., Tsai, S. W., Sang, J., Qin, J., Torday, J. S., Rubin, L. P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Effects+of+mechanical+forces+on+lung-specific+gene+expression.">Effects of mechanical forces on lung-specific gene expression.</a> Am. J. Med. Sci. 316, 200-204 (1998).</li><li>Sanchez-Esteban, J., Cicchiello, L. A., Wang, Y., Tsai, S. W., Williams, L. K., Torday, J. S., Rubin, L. P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Mechanical+stretch+promotes+alveolar+epithelial+type+II+cell+differentiation.">Mechanical stretch promotes alveolar epithelial type II cell differentiation.</a> J. Appl. Physiol. 91, 589-595 (2001).</li><li>Sanchez-Esteban, J., Wang, Y., Cicchiello, L. A., Rubin, L. P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cyclic+mechanical+stretch+inhibits+cell+proliferation+and+induces+apoptosis+in+fetal+rat+lung+fibroblasts.">Cyclic mechanical stretch inhibits cell proliferation and induces apoptosis in fetal rat lung fibroblasts.</a> Am. J. Physiol. Lung. Cell. Mol. Physiol. 282, L448-L456 (2002).</li><li>Sanchez-Esteban, J., Wang, Y., Cicchiello, L. A., Rubin, L. P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cyclic+mechanical+stretch+inhibits+cell+proliferation+and+induces+apoptosis+in+fetal+rat+lung+fibroblasts.">Cyclic mechanical stretch inhibits cell proliferation and induces apoptosis in fetal rat lung fibroblasts.</a> Am. J. Physiol. Lung. Cell. Mol. Physiol. 282, L448-L456 (2002).</li><li>Sanchez-Esteban, J., Wang, Y., Gruppuso, P. A., Rubin, L. P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Mechanical+stretch+induces+fetal+type+II+cell+differentiation+via+an+epidermal+growth+factor+receptor-extracellular-regulated+protein+kinase+signaling+pathway.">Mechanical stretch induces fetal type II cell differentiation via an epidermal growth factor receptor-extracellular-regulated protein kinase signaling pathway.</a> Am. J. Respir. Cell. Mol. Biol. 30, 76-83 (2004).</li><li>Wang, Y., Maciejewski, B. S., Lee, N., Silbert, O., McKnight, N. L., Frangos, J. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Strain-induced+fetal+type+II+epithelial+cell+differentiation+is+mediated+via+cAMP-PKA-dependent+signaling+pathway.">Strain-induced fetal type II epithelial cell differentiation is mediated via cAMP-PKA-dependent signaling pathway.</a> Am. J. Physiol. Lung. Cell. Mol. Physiol. 291, L820-L827 (2006).</li><li>Sanchez-Esteban, J., Wang, Y., Filardo, E. J., Rubin, L. P., Ingber, D. E. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Integrins+{beta}1,+{alpha}6,+and+{alpha}3+contribute+to+mechanical+strain-induced+differentiation+of+fetal+lung+type+II+epithelial+cells+via+distinct+mechanisms.">Integrins {beta}1, {alpha}6, and {alpha}3 contribute to mechanical strain-induced differentiation of fetal lung type II epithelial cells via distinct mechanisms.</a> Am. J. Physiol. Lung. Cell. Mol. Physiol. 290, L343-L350 (2006).</li><li>Wang, Y., Maciejewski, B. S., Soto-Reyes, D., Lee, H. S., Warburton, D., Sanchez-Esteban, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Mechanical+stretch+promotes+fetal+type+II+epithelial+cell+differentiation+via+shedding+of+HB-EGF+and+TGF-alpha.">Mechanical stretch promotes fetal type II epithelial cell differentiation via shedding of HB-EGF and TGF-alpha.</a> J. Physiol. 587, 1739-1753 (2009).</li><li>Wang, Y., Maciejewski, B. S., Drouillard, D., Santos, M., Hokenson, M. A., Hawwa, R. L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+role+for+caveolin-1+in+mechanotransduction+of+fetal+type+II+epithelial+cells.">A role for caveolin-1 in mechanotransduction of fetal type II epithelial cells.</a> Am. J. Physiol. Lung. Cell. Mol. Physiol. 298, L775-L783 (2010).</li><li>Lee, H. S., Wang, Y., Maciejewski, B. S., Esho, K., Fulton, C., Sharma, S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Interleukin-10+protects+cultured+fetal+rat+type+II+epithelial+cells+from+injury+induced+by+mechanical+stretch.">Interleukin-10 protects cultured fetal rat type II epithelial cells from injury induced by mechanical stretch.</a> Am. J. Physiol. Lung. Cell. Mol. Physiol. 294, L225-L232 (2008).</li><li>Hawwa, R. L., Hokenson, M. A., Wang, Y., Huang, Z., Sharma, S., Sanchez-Esteban, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=IL-10+inhibits+inflammatory+cytokines+released+by+fetal+mouse+lung+fibroblasts+exposed+to+mechanical+stretch.">IL-10 inhibits inflammatory cytokines released by fetal mouse lung fibroblasts exposed to mechanical stretch.</a> Pediatric Pulmonology. , (2011).</li><li>Kitterman, J. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+effects+of+mechanical+forces+on+fetal+lung+growth.">The effects of mechanical forces on fetal lung growth.</a> Clin. Perinatol. 23, 727-740 (1996).</li><li>Harding, R., Crystal, R. G., West, J. B., Banes, P. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Fetal+breathing+movements.">Fetal breathing movements.</a> The Lung: Scientific Fountations. , 2093-2104 (1997).</li><li>Harding, R., Liggins, G. C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Changes+in+thoracic+dimensions+induced+by+breathing+movements+in+fetal+sheep.">Changes in thoracic dimensions induced by breathing movements in fetal sheep.</a> Reprod. Fertil. Dev. 8, 117-124 (1996).</li></ol>

본 원고에서는 태아의 유형 II 상피 세포 및 섬유아 세포를 분리하고 Flexcell의 위기 장치를 사용하여 기계적인 자극에 노출하는 방법을 설명합니다. 우리는 상피 세포의 분화 1,2을 평가하고 수용체와 스트레치 3-9 활성화 신호 전달 경로를 연구하기 위해이 기술을 사용해 왔습니다. 또한,이 방법은 또한 기계적 손상 10,11 의해 유도된 세포 반응을 조사하는 데 사용할 수 있?...

<table border="1">
	<tbody>
		<tr>
			<td>Name of the reagent</td>
			<td>Company</td>
			<td>Catalogue number</td>
			<td>Comments</td>
		</tr>
		<tr>
			<td>DMEM</td>
			<td>Sigma</td>
			<td>D5648</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>HEPES</td>
			<td>Sigma</td>
			<td>H3375</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>Collagenase 1</td>
			<td>Sigma</td>
			<td>C0130</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>Collagenase 1A</td>
			<td>Sigma</td>
			<td>C9891</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>Chicken serum</td>
			<td>Sigma</td>
			<td>C5405</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>Screen cups</td>
			<td>Sigma</td>
			<td>CD1-1KT</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>Syringe filters</td>
			<td>Fisher Scientific</td>
			<td>09-754-25</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>100 micron nylon mesh</td>
			<td>Small Parts, INC</td>
			<td>CMN-100-D</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>30 micron mesh</td>
			<td>Small Parts, INC</td>
			<td>CMN-30-D</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>15 micron mesh</td>
			<td>Dynamic Aqua-Supply Ltd.</td>
			<td>NTX15</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>Laminin</td>
			<td>Sigma</td>
			<td>L2020</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>Collagen-1</td>
			<td>Collagen Biomed</td>
			<td>PC0701</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>Fibronectin</td>
			<td>Sigma</td>
			<td>F1141</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>Vitronectin</td>
			<td>Sigma</td>
			<td>V-0132</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>Elastin</td>
			<td>Sigma</td>
			<td>E-6402</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>Bioflex plate</td>
			<td>Flexcell International</td>
			<td>BF-3001U</td>
			<td>Uncoated</td>
		</tr>
		<tr>
			<td>Flexcell Strain Unit</td>
			<td>Flexcell International</td>
			<td>FX-5000</td>
			<td>&nbsp;</td>
		</tr>
	</tbody>
</table>

an experimental system to study mechanotransduction in fetal lung cells

반복적인 호흡과 같은 움직임 의해 유체 팽만에 의한 utero에서 생성된 기계적 세력은 정상 폐 개발을위한 중요합니다. 폐 개발의 핵심 구성 요소는 폐포 유형 II 상피 세포, 폐 계면 활성제의 주요 소스의 차별화입니다. 이러한 세포는 폐포 루멘, 호스트 방어 및 부상 수리에 유체 항상성에 참여합니다. 또한, 말초 폐 실질 조직 세포를 직접 출산 후 기계적 환기 중 과장 확대 해석에 노출됩니다. 그러나 폐암 세포가 폐 발달에 영향을 미치는하고 폐 손상을 촉진하기 위해 기계적인 자극을 감지하는 정확한 분자 및 세포 메커니즘은 완전히 이해되지 않습니다. 여기서는 쥐 태아의 폐가에서 2 형 세포와 섬유아 세포를 분리하기위한 간단하고 고순도 방법을 제공합니다. 그렇다면, 우리는에 기계적 힘을 시뮬레이션, 태아 세포에 기계적 자극을 제공하기 위해, 체외 시스템, Flexcell 스트레인 단위에 대해 설명태아의 폐 발달이나 폐 부상. 이 실험 시스템은 신축에 노출 태아의 폐 세포에서 분자 및 세포 메커니즘을 조사하기위한 훌륭한 도구를 제공합니다. 이 방법을 사용, 저희 연구실은 태아의 폐 발달과 폐 부상 mechanotransduction에 참여하는 여러 수용체 및 신호 전달 단백질을 찾아냈습니다.

Watch this Scientific Journal Video about An Experimental System to Study Mechanotransduction in Fetal Lung Cells at JoVE.com

An Experimental System to Study Mechanotransduction in Fetal Lung Cells

기계 군은 폐 개발 및 폐 부상에서 핵심적인 역할을한다. 여기서는 쥐 태아의 폐 유형 II 상피 세포 및 섬유아 세포를 분리하고 사용하여 기계적인 자극에 노출하는 방법을 설명<em&gt; 체외에서</em&gt; 시스템.

태아의 폐 세포에 Mechanotransduction을 공부하는 실험적 시스템

Mechanical forces generated in utero by repetitive breathing-like movements and by fluid distension are critical for normal lung development. A key ...

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During pre-synaptic embryonic development, neuronal processes traverse short distances to reach their targets via growth cone. Over time, neuronal somata ...

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