Os autores são funcionários da Miltenyi Biotec GmbH, Alemanha.

Para trabalhar em condições estéreis, é recomendada a realização de todas as etapas em uma capela de fluxo laminar. 1. Materiais <ol><li> HEPES buffer: 10 mM HEPES-NaOH pH 7,4, 150 mM NaCl, 5 mM KCl, 1 mM MgCl 2, 1,8 mM CaCl 2) </li><li> Colagenase solução D: D colagenase: 100 mg / mL (colagenase D&gt; 0,15 U / mg) buffer, na HEPES </li><li> DNase solução I: 20.000 U / mL DNase I </li><li> Tampão PBS a pH 7,2 </li><li> PEB buffer: 1 parte da solução stock BSA em 20 partes autoMACS Solução lavagem </li><li> Tecidos: pulmão derivado de 6 / 7 semanas de idade adulta feminina BALB / C mouse, livre de órgãos adjacentes. </li><li> Opcional: microesferas CD11c, Colunas MACS MS, MACS Separador para o isolamento de células dendríticas a partir de suspensão de rato de pulmão de uma única célula </li></ol> 2. Dissociar o tecido pulmonar <ol><li> Enxaguar tecido em uma placa de Petri contendo PBS para remover eritrócitos. </li><li> Transferir um máximo de 450 mg tecido pulmonar para um tubo contendo 4,9 C gentleMACS mL tampão HEPES. </li><li> Adicionar 100 mL de solução de colagenase D para uma concentração final de 2 mg / ml de colagenase D. </li><li> Adicionar 10 mL de solução DNase I para até 150 mg de tecido (concentração final de 40 U / ml DNase I) ou 20 mL DNase I para 150-450 mg tecido pulmonar (concentração final de 80 U / mL DNase I). </li><li> Fechar o tubo firmemente C e anexá-lo para o Dissociator gentleMACS. Em seguida, executar o programa &quot;m_lung_01&quot;. </li><li> Incubar por 30 min a 37 ° C com rotação automática ou manualmente girando a cada 5 minutos. </li><li> De recolha de amostras para o Dissociator gentleMACS e execute o programa &quot;m_lung_02&quot;. </li></ol> 3. Filtração <ol><li> Prepare um tubo de 50 mL para a recolha de células filtradas, substituindo a tampa com uma peneira 70 mesh célula mM. </li><li> Uma vez que o Programa gentleMACS segunda extremidades, dependendo da distribuição de material da amostra no tubo, você pode centrifugar o tubo rapidamente para recolher o material da amostra na parte inferior do tubo. </li><li> Remover as células através da tampa do septo selada do tubo C usando um adequado mil ponteira mL e aplicá-las ao crivo da célula. </li><li> Lavar o filtro de células com 5 ml tampão HEPES à temperatura ambiente. </li><li> Centrifugar as células a uma bola em um tubo de 50 mL em 300xg por 10 min. </li><li> Aspirar o sobrenadante e ressuspender o pellet celular em seu volume desejado de tampão PEB. </li></ol> Parte 4: Resultados Representante: <img src="/files/ftp_upload/1266/1266fig1.jpg" alt="Figura 1" /> Figura 1. Lung dissociação com o ™ gentleMACS Dissociator resultou em 92% de células viáveis. Células mortas foram fluorescente corados com iodeto de propídio (PI) (gráfico de pontos direita; gráfico de pontos à esquerda: nenhuma coloração PI). <img src="/files/ftp_upload/1266/1266fig2.jpg" alt="Figura 2" /> Figura 2. Dissociação do mouse tecido pulmonar, utilizando os resultados Dissociator gentleMACS em uma alta porcentagem de leucócitos viáveis ​​e células endoteliais. A derivada de uma única célula suspensões foram coradas com CD45-PE e CD146-FITC ou CD31-FITC e analisadas por citometria de fluxo. <img src="/files/ftp_upload/1266/1266figure2c.png" alt="Figura 2C" /> Figura 3. Único de células derivadas de suspensão tecido pulmonar do rato estava manchada de CD11c-FITC e Anti-mPDCA-1-APC para detectar rato CD11c baixa m-PDCA-1 + plasmocitóide DCs, bem como células CD11c alta. <img src="/files/ftp_upload/1266/1266fig4.jpg" alt="Figura 4" /> Figura 4. Enriquecimento de células dendríticas usando microesferas CD11c, um separador MiniMACS e duas colunas MS.

<ol><li>Swanson, K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Flt3-Ligand%2C+IL-4%2C+GM-CSF%2C+and+Adherence-Mediated+Isolation+of+Murine+Lung+Dendritic+Cells%3A+Assessment+of+Isolation+Technique+on+Phenotype+and+Function%5BTitle%5D)+AND+%22J.+Immunol%22%5BJournal%5D)">Flt3-Ligand, IL-4, GM-CSF, and Adherence-Mediated Isolation of Murine Lung Dendritic Cells: Assessment of Isolation Technique on Phenotype and Function.</a> J. Immunol. 173, 4875-4881 (2004).</li>
<li>Vermaelen, K., Pauwels, R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Accurate+and+simple+discrimination+of+mouse+pulmonary+dendritic+cell+and+macrophage+populations+by+flow+cytometry%3A+Methodology+and+new+insights%5BTitle%5D)+AND+%22Cytometry+Part+A%22%5BJournal%5D)">Accurate and simple discrimination of mouse pulmonary dendritic cell and macrophage populations by flow cytometry: Methodology and new insights.</a> Cytometry Part A. 61A, 170-177 (2004).</li>
</ol>

The authors are employees of Miltenyi Biotec GmbH who make the instrument used in this article.

Neste vídeo, apresentamos um novo método para a dissociação do tecido pulmonar do rato. Nós mostramos que a combinação de tratamento mecânico e enzimático do tecido pulmonar resultou em uma alta porcentagem de leucócitos viáveis ​​e células endoteliais. Especificamente, a desintegração mecânica do tecido foi obtido pela Dissociator gentleMACS. The Tubes gentleMACS C incluem um rotor - estator sistema, que dissocia o tecido de uma maneira suave. O procedimento é controlado por as configurações do pr...

<table><tbody><tr><td>C Tubes</td><td>Miltenyi Biotec</td><td>Order no. 130-093-237</td><td>&lt;a href=&quot;http://www.miltenyibiotec.com/en/PG_709_765_gentleMACS_C_Tubes.aspx&quot;&gt;http://www.miltenyibiotec.com/en/PG_709_765_gentleMACS_C_Tubes.aspx&lt;/a&gt;</td></tr><tr><td>gentleMACS&amp;#8482; Starting Kit</td><td>Miltenyi Biotec</td><td>Order no. 130-093-235</td><td>&lt;a href=&quot;http://www.miltenyibiotec.com/en/PG_709_763_gentleMACS_Dissociator.aspx&quot;&gt;http://www.miltenyibiotec.com/en/PG_709_763_gentleMACS_Dissociator.aspx&lt;/a&gt;</td></tr><tr><td>MACSmix&amp;#8482; Tube Rotator</td><td>Miltenyi Biotec</td><td>Order no. 130-090-753</td><td>&lt;a href=&quot;http://www.miltenyibiotec.com/en/PG_34_251_MACSmix_Tube_Rotator.aspx&quot;&gt;http://www.miltenyibiotec.com/en/PG_34_251_MACSmix_Tube_Rotator.aspx&lt;/a&gt;</td></tr><tr><td>autoMACS&amp;#8482; Rinsing Solution</td><td>Miltenyi Biotec</td><td>Order no. 130-091-222</td><td>&lt;a href=&quot;http://www.miltenyibiotec.com/en/PG_134_155_autoMACS_Rinsing_Solution.aspx&quot;&gt;http://www.miltenyibiotec.com/en/PG_134_155_autoMACS_Rinsing_Solution.aspx&lt;/a&gt;</td></tr><tr><td>MACS&amp;#174; BSA Stock Solution</td><td>Miltenyi Biotec</td><td>Order no. 130-091-376</td><td>&lt;a href=&quot;http://www.miltenyibiotec.com/en/PG_33_295_MACS_BSA_Stock_Solution.aspx&quot;&gt;http://www.miltenyibiotec.com/en/PG_33_295_MACS_BSA_Stock_Solution.aspx&lt;/a&gt;</td></tr><tr><td>CD11c MicroBeads</td><td>Miltenyi Biotec</td><td>Order No. 130-052-001</td><td>&lt;a href=&quot;http://www.miltenyibiotec.com/en/PG_93_132_CD11c_MicroBeads.aspx&quot;&gt;http://www.miltenyibiotec.com/en/PG_93_132_CD11c_MicroBeads.aspx&lt;/a&gt;</td></tr><tr><td>CD11c-FITC, CD11c-PE</td><td>Miltenyi Biotec</td><td>Order no. 130-092-026130-091-830</td><td>&lt;a href=&quot;http://www.miltenyibiotec.com/en/PG_599_329_CD11c.aspx&quot;&gt;http://www.miltenyibiotec.com/en/PG_599_329_CD11c.aspx&lt;/a&gt;</td></tr><tr><td>Anti-mPDCA-1-APC</td><td>Miltenyi Biotec</td><td>Order no. 130-091-963</td><td>&lt;a href=&quot;http://www.miltenyibiotec.com/en/PG_599_325_Anti_mPDCA_1.aspx&quot;&gt;http://www.miltenyibiotec.com/en/PG_599_325_Anti_mPDCA_1.aspx&lt;/a&gt;</td></tr><tr><td>CD146-FITC</td><td>Miltenyi Biotec</td><td>Order no. 130-092-026</td><td>&lt;a href=&quot;http://www.miltenyibiotec.com/en/PG_599_417_CD146_LSEC_.aspx&quot;&gt;http://www.miltenyibiotec.com/en/PG_599_417_CD146_LSEC_.aspx&lt;/a&gt;</td></tr><tr><td>CD45-PE</td><td>Miltenyi Biotec</td><td>Order no. 130-091-610</td><td>&lt;a href=&quot;http://www.miltenyibiotec.com/en/PG_599_331_CD45.aspx&quot;&gt;http://www.miltenyibiotec.com/en/PG_599_331_CD45.aspx&lt;/a&gt;</td></tr><tr><td>Propidium Iodide Solution</td><td>Miltenyi Biotec</td><td>Order no. 130-093-233</td><td>&lt;a href=&quot;http://www.miltenyibiotec.com/en/PG_337_744_Propidium_Iodide_Solution.aspx&quot;&gt;http://www.miltenyibiotec.com/en/PG_337_744_Propidium_Iodide_Solution.aspx&lt;/a&gt;</td></tr><tr><td>Art 1000 Reach Pipet Tips</td><td>Molecular BioProducts</td><td>Order no. 2079</td><td>&lt;a href=&quot;http://www.mbpinc.com/ASP/products.aspx?query_TipID=61&quot;&gt;http://www.mbpinc.com/ASP/products.aspx?query_TipID=61&lt;/a&gt;&lt;br/&gt;&lt;a href=&quot;http://www.mbpinc.com/html/products/art/display.html&quot;&gt;http://www.mbpinc.com/html/products/art/display.html&lt;/a&gt;</td></tr></tbody></table>

standardized preparation of single-cell suspensions from mouse lung tissue using the gentlemacs dissociator

A preparação de suspensões de uma única célula de tecidos é um requisito importante para muitas experiências em pesquisa celular. O processo de dissociação órgãos inteiros requer parâmetros específicos a fim de obter um elevado número de células viáveis ​​de forma reproduzível. O Dissociator gentleMACS otimiza essa tarefa com um protocolo simples e prática. O instrumento contém ajustes pré-programados que são otimizados para a dissociação eficiente, mas suave de uma variedade de tipos de tecidos, incluindo pulmões mouse. Nesta publicação o uso do Dissociator gentleMACS no tecido pulmonar derivada de ratos é demonstrada.

Watch this Scientific Journal Video about Standardized Preparation of Single-Cell Suspensions from Mouse Lung Tissue using the gentleMACS Dissociator at JoVE.com

Standardized Preparation of Single-Cell Suspensions from Mouse Lung Tissue using the gentleMACS Dissociator

Dissociar as células de tipos de tecido específico requer parâmetros específicos para a agitação do tecido para obter um volume elevado de viáveis, as células cultiváveis. A Miltenyi gentleMACS dissociator otimiza essa tarefa com um protocolo simples e prática. Nesta publicação o uso deste aparelho no tecido pulmonar é explicado.

Preparação padronizado de uma única célula Suspensões do tecido pulmonar do rato usando o Dissociator gentleMACS

The preparation of single-cell suspensions from tissues is an important prerequisite for many experiments in cellular research. The process of ...

standardized-preparation-single-cell-suspensions-from-mouse-lung

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JoVE Journal

Biology

34.5K visualizações.  Miltenyi Biotec,GmbH.  中文 日本語 

Vídeo: Standardized Preparation of Single-Cell Suspensions from Mouse Lung Tissue using the gentleMACS Dissociator

Isolation of Mouse Lung Dendritic Cells

Lung dendritic cells (DC) play a fundamental role in sensing invading pathogens 1,2 as well as in the control of tolerogenic responses 3 in the respiratory tract. At least three main subsets of lung dendritic cells have been described in mice: conventional DC (cDC) 4, plasmacytoid DC (pDC) 5 and the IFN-producing killer DC (IKDC) 6,7. The cDC subset is the most prominent DC subset in the lung 8. 
The common marker known to identify DC subsets is CD11c, a type I transmembrane integrin (&beta;2) that is also expressed on monocytes, macrophages, neutrophils and some B cells 9. In some tissues, using CD11c as a marker to identify mouse DC is valid, as in spleen, where most CD11c+ cells represent the cDC subset which expresses high levels of the major histocompatibility complex class II (MHC-II). However, the lung is a more heterogeneous tissue where beside DC subsets, there is a high percentage of a distinct cell population that expresses high levels of CD11c bout low levels of MHC-II. Based on its characterization and mostly on its expression of F4&#47;80, an splenic macrophage marker, the CD11chiMHC-IIlo lung cell population has been identified as pulmonary macrophages 10 and more recently, as a potential DC precursor 11. 
In contrast to mouse pDC, the study of the specific role of cDC in the pulmonary immune response has been limited due to the lack of a specific marker that could help in the isolation of these cells. Therefore, in this work, we describe a procedure to isolate highly purified mouse lung cDC. The isolation of pulmonary DC subsets represents a very useful tool to gain insights into the function of these cells in response to respiratory pathogens as well as environmental factors that can trigger the host immune response in the lung.

A highly purified preparation of mouse lung dendritic cells is described. Specific emphasis is given to the isolation of conventional dendritic cell subset.

Isolamento de células dendríticas pulmonares do rato

Lung dendritic cells (DC) play a fundamental role in sensing invading pathogens 1,2 as well as in the control of tolerogenic responses 3 in the ...

Imunologia e Infecção

Preparation of Single-Cell Suspensions from Mouse Spleen with the gentleMACS Dissociator

Single-cell suspensions are a prerequisite for experiments in cell separation, cell analysis and cell culture.  To avoid tedious and often painful manual dissociations the gentleMACS Dissociator allows one to dissociate tissue very efficiently under controlled and reproducible conditions.  The gentleMACS Dissociator can optimally dissociate mouse spleen, combining timesaving and standardization with user-safety.

This video describes how to dissociate mouse spleens using the gentleMACS Dissociator, an automated bench-top device that can mechanically disrupt tissues using special tubes to produce viable cell suspensions. Following dissociation, spleens are filtered, centrifuged, and resuspended for further applications.

This video describes a simple, time-saving technique for automated tissue dissociation using the gentleMACS Dissociator to prepare single-cell suspensions of mouse splenocytes.

Preparação de uma única célula Suspensões de Spleen rato com o Dissociator gentleMACS

Single-cell suspensions are a prerequisite for experiments in cell separation, cell analysis and cell culture.  To avoid tedious and often painful manual ...

Biologia

Generation of Single-Cell Suspensions from Mouse Neural Tissue

Within the nervous system, hundreds of neuronal and glial cell types have been described. Each specific cell type in the brain or spinal cord has a repertoire of cell surface molecules, or molecular determinants, through which it can be identified and characterized. Currently, robust cell identification and separation technologies require single-cell preparations to be generated while simultaneously limiting cell death and destruction of characteristic surface protein. The gentleMACS Dissociator, when used in combination with trypsin or papain-based dissociation kits, can effectively and gently dissociate brain tissue while preserving antigen epitopes and limiting cell loss. Standardized preparation of single-cell suspensions is achieved using C Tubes and optimized, preset gentleMACS Programs. Once generated, single-cell suspensions can be treated with monoclonal conjugates like Anti-Prominin-1 MicroBeads, which identify neural progenitors, or purified further using Myelin Removal Beads.

Dissociating cells from specific tissue types requires specific parameters for tissue aggitation to obtain a high volume of viable, culturable cells. The Miltenyi gentleMACS Dissociator optimizes this task with a simple, practical protocol. In this publication the use of this apparatus on nerual tissue is explained.

Geração de Single-Cell Tissue Suspensões de rato Neural

Within the nervous system, hundreds of neuronal and glial cell types have been described. Each specific cell type in the brain or spinal cord has a ...

Isolation and In Vitro Culture of Murine and Human Alveolar Macrophages

Alveolar macrophages are terminally differentiated, lung-resident macrophages of prenatal origin. Alveolar macrophages are unique in their long life and their important role in lung development and function, as well as their lung-localized responses to infection and inflammation. To date, no unified method for identification, isolation, and handling of alveolar macrophages from humans and mice exists. Such a method is needed for studies on these important innate immune cells in various experimental settings. The method described here, which can be easily adopted by any laboratory, is a simplified approach to harvesting alveolar macrophages from bronchoalveolar lavage fluid or from lung tissue and maintaining them in vitro. Because alveolar macrophages primarily occur as adherent cells in the alveoli, the focus of this method is on dislodging them prior to harvest and identification. The lung is a highly vascularized organ, and various cell types of myeloid and lymphoid origin inhabit, interact, and are influenced by the lung microenvironment. By using the set of surface markers described here, researchers can easily and unambiguously distinguish alveolar macrophages from other leukocytes, and purify them for downstream applications. The culture method developed herein supports both human and mouse alveolar macrophages for in vitro growth, and is compatible with cellular and molecular studies.

Isolation and In Vitro Culture of Murine and Human Alveolar Macrophages

This communication describes methodologies for isolation and culture of alveolar macrophages from humans and murine models for experimental purposes.

Isolamento e cultura In Vitro de macrófagos alveolares murino e humanos

Alveolar macrophages are terminally differentiated, lung-resident macrophages of prenatal origin. Alveolar macrophages are unique in their long life and ...

Isolation &#38; Characterization of Hoechstlow CD45negative Mouse Lung Mesenchymal Stem Cells

Tissue resident mesenchymal stem cells (MSC) are important regulators of tissue repair or regeneration, fibrosis, inflammation, angiogenesis and tumor formation. Taken together these studies suggest that resident lung MSC play a role during pulmonary tissue homeostasis, injury and repair during diseases such as pulmonary fibrosis (PF) and arterial hypertension (PAH). Here we describe a technology to define a population of resident lung MSC. The definition of this population in vivo pulmonary tissue using a define set of markers facilitates the repeated isolation of a well-characterized stem cell population by flow cytometry and the study of a specific cell type and function.

Isolation & Characterization of Hoechstlow CD45negative Mouse Lung Mesenchymal Stem Cells

In this article we demonstrate the isolation of murine resident lung mesenchymal stem cells (lung MSC), their expansion, characterization and analysis of immunomodulatory properties.

Isolamento &amp; Caracterização da Hoechst Baixa CD45 Negativo Mouse Células-Tronco Mesenquimais de pulmão

Tissue resident mesenchymal stem cells (MSC) are important regulators of tissue repair or regeneration, fibrosis, inflammation, angiogenesis and tumor ...

Isolamento e caracterização de células T antígeno-específicas em pulmões de camundongos

Identification of Rare Antigen-Specific T Cells from Mouse Lungs with Peptide:Major Histocompatibility Complex Tetramers

The identification and characterization of antigen-specific T cells during health and disease remains a key to improving our understanding of immune pathophysiology. The technical challenges of tracking antigen-specific T cell populations within the endogenous T cell repertoire have been greatly advanced by the development of peptide:MHC tetramer reagents. These fluorescently labeled soluble multimers of MHC class I or class II molecules complexed to antigenic peptide epitopes bind directly to T cells with corresponding T cell receptor (TCR) specificity and can, therefore, identify antigen-specific T cell populations in their native state without a requirement for a functional response induced by ex vivo stimulation. For exceedingly rare populations, tetramer-bound T cells can be magnetically enriched to increase the sensitivity and reliability of detection.
As the investigation of tissue-resident T cell immunity deepens, there is a pressing need to identify antigen-specific T cells that traffic to and reside in nonlymphoid tissues. In this protocol, we present a detailed set of instructions for the isolation and characterization of antigen-specific T cells present within mouse lungs. This involves the isolation of T cells from digested lung tissue followed by a general T cell magnetic enrichment step and tetramer staining for flow cytometry analysis and sorting. The steps highlighted in this protocol utilize common techniques and readily available reagents, making it accessible for nearly any researcher engaged in mouse T cell immunology, and are highly adaptable for a variety of downstream analyses of any low frequency antigen-specific T cell population residing within the lungs.

Autor em destaque: Protocolo otimizado para detecção de células T específicas de antígeno em pulmões de camundongos usando tetrâmeros

We provide a detailed protocol for isolating and identifying rare antigen-specific T cell populations in mouse lungs through magnetic bead-based T cell enrichment and peptide:major histocompatibility complex (MHC) tetramers.

Identificação de células T raras específicas de antígenos de pulmões de camundongos com peptídeos: tetrâmeros do complexo principal de histocompatibilidade

The identification and characterization of antigen-specific T cells during health and disease remains a key to improving our understanding of immune ...

<meta charset="utf8"></head><body>Isolamento de células imunes e não imunes de pulmões de camundongos para citometria de fluxo

Isolation of Live Myeloid and Epithelial Cell Populations from the Mouse Lung

The lung is continuously exposed to pathogens and other noxious environmental stimuli, rendering it vulnerable to damage, dysfunction, and the development of disease. Studies utilizing mouse models of respiratory infection, allergy, fibrosis, and cancer have been critical to reveal mechanisms of disease progression and identify therapeutic targets. However, most studies focused on the mouse lung prioritize the isolation of either immune cells or epithelial cells, rather than both populations concurrently. Here, we describe a method for preparing a comprehensive single-cell suspension of both immune and non-immune populations suitable for flow cytometry and fluorescence-activated cell sorting. These populations include epithelial cells, endothelial cells, fibroblasts, and a variety of myeloid cell subsets. This protocol entails bronchoalveolar lavage and subsequent inflation of the lungs with dispase. Lungs are then digested in a liberase mixture. This method of processing liberates a variety of diverse cell types and results in a single-cell suspension that does not require manual dissociation against a filter, promoting cell survival and yielding high numbers of live cells for downstream analyses. In this protocol, we also define gating schemes for epithelial and myeloid cell subsets in both na&#239;ve and influenza-infected lungs. Simultaneous isolation of live immune and non-immune cells is key for interrogating intercellular crosstalk and gaining a deeper understanding of lung biology in health and disease.

<meta charset="utf8"></head><body>Isolamento de populações de células mieloides e epiteliais vivas do pulmão de camundongo

This protocol details the isolation of live immune and non-immune populations from the mouse lung at a steady state and following influenza infection. It also provides gating strategies for identifying epithelial and myeloid cell subsets.

Isolamento de populações de células mieloides e epiteliais vivas do pulmão de camundongo

The lung is continuously exposed to pathogens and other noxious environmental stimuli, rendering it vulnerable to damage, dysfunction, and the development ...

Preparação padronizado de uma única célula Suspensões do tecido pulmonar do rato usando o Dissociator gentleMACS

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