设备简介<ol><li>纸巾轻轻分离，使用紫彗星管成可行的单细胞悬液。 </li><li> PBS / BSA EDTA缓冲液是用来分解细胞。缓冲区是准备加入1 BSA的联合解决方案的冲洗液含EDTA autoMACS 20部分。 </li><li>互助委员会预分离过滤器是用来使分离的组织样本中的所有细胞团块，促进成功磁珠分离和后续分析。 </li></ol>游离的脾细胞<ol><li>全脾disscociated使用gentleMACS Dissociator脾单细胞悬液。 </li><li>要开始的程序，负载​​的缓冲液C管，根据脾脏的质量。一个健康的一个年轻的成年雌性BALB / c小鼠脾重约80-120毫克。这种大规模的每1至2脾脏需要3缓冲液。年龄较大的动物或感染动物的脾脏往往更大，必须在缓冲区权衡。缓冲区卷，必须相应地调整。不要超过10毫升缓冲液。 </li><li>添加解剖脾包含3毫升缓冲到C管。 </li><li>确保了C管帽紧，并重视与第C管dissociator下来。 </li><li>电源了dissociator。 1-2脾脏，选择方案m_spleen_01。该方案将需要56秒钟即可完成。如果脾脏数量较大，使用方案m_spleen_04;这个方案，可用于高达720毫克脾组织。 </li><li>程序完成后本机的脾组织分离成脾细胞悬液。 </li><li>在室温下约30秒300xg离心整个细胞悬液。这将确保转子和定子是在C管的底部收集的所有细胞中解脱出来。 </li><li>通过隔密封在C管帽，使用1000微升pipetter开放取出样品。 </li></ol>过滤步骤<ol><li>要开始过滤步骤，应用游离组织的预分离的过滤器或用30微米孔径的细胞滤网。超过2脾，过滤网应适合1-2脾脏或50毫升管15毫升管。 </li><li>让细胞悬浮液通过。然后申请5缓冲液冲洗过滤器。 </li><li>现在与细胞悬液，离心管在300xg在室温下，10分钟收集所有的脾细胞，脾细胞沉淀。 </li><li>现在，我们有一个沉淀分离脾，我们必须吸出上清液，重悬细胞沉淀在一个适当的缓冲区数额。 </li></ol>使用gentleMACS Dissociator脾虚分解会产生一个可行的脾细胞的比例很高，这是由流动使用MACSQuant分析仪流式细胞仪证明。死细胞染色，碘化丙啶。在所提供的例子，向前侧散射点图显示的准备脾。

可在所有的协议和数据表<a href="http://www.miltenyibiotec.com"&gt; http://www.miltenyibiotec.com。</a&gt;。

为了避免繁琐而且往往是痛苦的手动的脑机制分离，gentleMACS Dissociator允许游离于组织非常有效地控制和可重复的条件下。组织分解过程是温和的细胞与细胞悬浮液的产量高存活率。 gentleMACS Dissociator与C管结合的目的是准备从各种组织中的单细胞悬液。该仪器配备了预先设定的方案，以分解小鼠脾，肝，肺，或神经组织。方案和协议的范围将不断扩大，以包括额外的组织。

<table><tbody><tr><td>gentleMACS&amp;#8482; Starting Kit</td><td>Miltenyi Biotec</td><td>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>C Tubes</td><td>Miltenyi Biotec</td><td>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>13 mL Tubes</td><td>Miltenyi Biotec</td><td>130-091-596</td><td>&lt;a href=&quot;http://www.miltenyibiotec.com/en/PG_34_751_13_mL_Tubes_for_LS_Columns.aspx&quot;&gt;http://www.miltenyibiotec.com/en/PG_34_751_13_mL_Tubes_for_LS_Columns.aspx&lt;/a&gt;</td></tr><tr><td>autoMACS&amp;#8482; Rinsing Solution </td><td>Miltenyi Biotec</td><td>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>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>Pre-Separation Filters </td><td>Miltenyi Biotec</td><td>130-041-407</td><td>&lt;a href=&quot;http://www.miltenyibiotec.com/en/PG_34_247_Pre_Separation_Filters.aspx&quot;&gt;http://www.miltenyibiotec.com/en/PG_34_247_Pre_Separation_Filters.aspx&lt;/a&gt;</td></tr><tr><td>MACSQuant Analyzer</td><td>Miltenyi Biotec</td><td>130-092-197</td><td></td></tr><tr><td>Propidium Iodide Solution</td><td>Miltenyi Biotec</td><td>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></tbody></table>

preparation of single-cell suspensions from mouse spleen with the gentlemacs dissociator

单细胞悬液，细胞分离，细胞分析，细胞培养实验的一个先决条件。为了避免繁琐而且往往是痛苦的手动的脑机制分离gentleMACS Dissociator允许游离于组织非常有效地控制和可重复的条件下。 gentleMACS Dissociator最佳游离于小鼠脾，结合用户的安全省时和标准化。本视频介绍了如何使用gentleMACS Dissociator，一个自动化的台式设备，可使用特殊管产生可行的细胞悬浮液的机械破坏组织游离于小鼠脾脏。以下分解，脾脏被过滤，离心，并为进一步的应用重悬。

Watch this Scientific Journal Video about Preparation of Single-Cell Suspensions from Mouse Spleen with the gentleMACS Dissociator at JoVE.com

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

本视频介绍了一个简单的自动组织使用gentleMACS Dissociator准备小鼠脾单细胞悬液的解离，节省时间的技术。

gentleMACS Dissociator从小鼠脾脏单细胞悬浮液的制备

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

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preparation-single-cell-suspensions-from-mouse-spleen-with-gentlemacs

Research

JoVE Journal

Biology

37.7K 次观看.  Miltenyi Biotec,GmbH.  中文 JapaneseVersion 

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

Preparing T Cell Growth Factor from Rat Splenocytes

Maintenance of antigen-specific T cell lines or clones in culture requires rounds of antigen-induced activation separated by phases of cell expansion 1,2. Addition of interleukin 2 to the culture media during the expansion phase is necessary to prevent cell death and sufficient to maintain short-term T cell lines but has been shown to increase Th1 polarization 3. Replacement of interleukin 2 by T cell growth factor (TCGF) which contains a mix of cytokines is more effective than interleukin 2 in maintaining long-term T cell lines in vitro 3. Moreover, TCGF can easily be prepared in large amounts in the laboratory and is much cheaper than recombinant interleukin 2. 
Here, we show how to prepare TCGF from rat splenocyte culture supernatants. For this procedure, we harvest spleens from naive Lewis rats euthanized for thymus and blood collection. We prepare single-cell suspensions from the spleens, lyze the red blood cells by osmotic shock, and seed the splenocytes in culture medium. The cells are stimulated with concanavalin A, a mitogen that non-selectively activates all rat T lymphocytes, inducing the production of cytokines. The culture supernantant is collected 48 hours later andexcess concanavalin A is bound to alpha methyl mannoside to prevent it from activating T cell lines to which TCGF will be added. The TCGF is then sterile-filtered, aliquoted, and stored at -20&deg;C.

We describe the preparation of T cell growth factor used for the in vitro expansion of antigen-specific rat T lymphocyte lines.

准备从大鼠脾细胞T细胞生长因子

Maintenance of antigen-specific T cell lines or clones in culture requires rounds of antigen-induced activation separated by phases of cell expansion 1,2. ...

科研

生物学

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

The preparation of single-cell suspensions from tissues is an important prerequisite for many experiments in cellular research. The process of dissociating whole organs requires specific parameters in order to obtain a high number of viable cells in a reproducible manner. The gentleMACS Dissociator optimizes this task with a simple, practical protocol. The instrument contains pre-programmed settings that are optimized for the efficient but gentle dissociation of a variety of tissue types, including mouse lungs. In this publication the use of the gentleMACS Dissociator on lung tissue derived from mice is demonstrated.

Dissociating cells from specific tissue types requires specific parameters for tissue agitation 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 lung tissue is explained.

标准化的制备小鼠肺组织单细胞悬浮液使用gentleMACS Dissociator

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

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.

从小鼠神经组织产生单细胞悬浮液

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 ...

The Use of Flow Cytometry to Assess the State of Chromatin in T Cells

During a proper immune response, quiescent T cells become activated upon antigen presentation to their antigen-specific T cell receptor. This leads to clonal proliferation of only those T cells that bear a receptor that recognizes the antigen. Chromatin decondensation is a hallmark of T cell activation and is required for T cells to acquire the ability to proliferate after antigen engagement. This change in chromatin condensation can be detected using antibodies raised against histone proteins. These antibodies cannot bind to their epitopes in na&#239;ve T cells as well as they can in activated T cells. We describe how to simultaneously stain T cell-specific surface markers, track viability with a fixable dead cell stain, and measure chromatin status via intracellular staining of Histone H3 proteins. Stained cells are analyzed by flow cytometry and chromatin condensation status is measured as the mean fluorescence intensity (MFI) of the Histone H3 stain. Chromatin decondensation during T cell activation is demonstrated as an increase in the MFI

Flow cytometry can be utilized to assess the state of chromatin within T cells. This protocol allows scientists to interpret evidence of chromatin decondensation during T cell activation demonstrated by an increase in the mean florescence intensity (MFI) of fluorescent Histone H3 antibodies

流式细胞仪用来评估染色质的T细胞国家

During a proper immune response, quiescent T cells become activated upon antigen presentation to their antigen-specific T cell receptor. This leads to ...

免疫与感染

Isolation of Murine Spermatogenic Cells using a Violet-Excited Cell-Permeable DNA Binding Dye

Isolation of meiotic spermatocytes is essential to investigate molecular mechanisms underlying meiosis and spermatogenesis. Although there are established cell isolation protocols using Hoechst 33342 staining in combination with fluorescence-activated cell sorting, it requires cell sorters equipped with an ultraviolet laser. Here we describe a cell isolation protocol using the DyeCycle Violet (DCV) stain, a low cytotoxicity DNA binding dye structurally similar to Hoechst 33342. DCV can be excited by both ultraviolet and violet lasers, which improves the flexibility of equipment choice, including a cell sorter not equipped with an ultraviolet laser. Using this protocol, one can isolate three live-cell subpopulations in meiotic prophase I, including leptotene/zygotene, pachytene, and diplotene spermatocytes, as well as post-meiotic round spermatids. We also describe a protocol to prepare single-cell suspension from mouse testes. Overall, the procedure requires a short time to complete (4-5 hours depending on the number of needed cells), which facilitates many downstream applications.

Here we present a simple and efficient method to isolate live meiotic and post-meiotic germ cells from adult mouse testes. Using a low-cytotoxicity, violet-excited DNA binding dye and fluorescence-activated cell sorting, one can isolate highly enriched spermatogenic cell populations for many downstream applications.

使用紫罗兰兴奋细胞渗透DNA结合染料分离穆林精子生成细胞

Isolation of meiotic spermatocytes is essential to investigate molecular mechanisms underlying meiosis and spermatogenesis. Although there are established ...

发育生物学

Basement Membrane Matrix Encapsulated Cell Aggregation for Investigating Murine Spleen Tissue Formation

The spleen is an immune organ that plays a key role in blood-borne immune responses. The anatomical or functional loss of this tissue increases susceptibility to severe blood infections and sepsis. Auto-transplantation of spleen slices has been used clinically to replace lost tissue and restore immune function. However, the mechanism driving robust and immunologically functional spleen tissue regeneration has not been fully elucidated. Here, we aim to develop a method for aggregating and encapsulating spleen cells within a semi-solid matrix in order to investigate the cellular requirements for spleen tissue formation. Basement membrane matrix encapsulated cell constructs are amenable to both in vitro tissue culture of three-dimensional organoids as well as transplantation under the kidney capsule to directly assess in vivo tissue formation. By manipulating the input cells for aggregation and encapsulation, we demonstrate that graft-derived PDGFR&#946;+MAdCAM-1- neonatal stromal cells are required for spleen tissue regeneration under animal transplantation models.

This article describes a protocol for aggregating and encapsulating spleen cells within a semi-solid basement membrane matrix. Basement membrane matrix constructs can be used in three-dimensional culture for studying organoid development, or for in vivo transplantation and tissue regeneration studies.

基底膜基质封装细胞聚集用于研究小鼠脾脏组织形成

The spleen is an immune organ that plays a key role in blood-borne immune responses. The anatomical or functional loss of this tissue increases ...

Isolation and Adoptive Transfer of High Salt Treated Antigen-presenting Dendritic Cells

Excess dietary salt intake contributes to inflammation and plays a vital role in the development of hypertension. We previously found that antigen-presenting dendritic cells (DCs) can sense elevated extracellular sodium leading to the activation of the NADPH oxidase and formation of isolevuglandin (IsoLG)-protein adducts. These IsoLG-protein adducts react with self-proteins and promote an autoimmune-like state and hypertension. We have developed and optimized state-of-the-art methods to study DC function in hypertension. Here, we provide a detailed protocol for isolation, in vitro treatment with elevated sodium, and adoptive transfer of murine splenic CD11c+ cells into recipient mice to study their role in hypertension.

Here, we present a protocol to isolate dendritic cells from murine spleens by magnetic cell sorting and subsequent adoptive transfer into na&#239;ve mice. The model of high-salt activated dendritic cells was chosen to explain the step-by-step procedures of adoptive transfer and flow cytometry.

高盐抗原表达树突状细胞的分离和采用转移

Excess dietary salt intake contributes to inflammation and plays a vital role in the development of hypertension. We previously found that ...

Flow Cytometric Characterization of Murine B Cell Development

Extensive studies have characterized the development and differentiation of murine B cells in secondary lymphoid organs. Antibodies secreted by B cells have been isolated and developed into well-established therapeutics. Validation of murine B cell development, in the context of autoimmune prone mice, or in mice with modified immune systems, is a crucial component of developing or testing therapeutic agents in mice and is an appropriate use of flow cytometry. Well established B cell flow cytometric parameters can be used to evaluate B cell development in the murine peritoneum, bone marrow, and spleen, but a number of best practices must be adhered to. In addition, flow cytometric analysis of B cell compartments should also complement additional readouts of B cell development. Data generated using this technique can further our understanding of wild type, autoimmune prone mouse models as well as humanized mice that can be used to generate antibody or antibody-like molecules as therapeutics.

We describe herein a simple analysis of the heterogeneity of the murine immune B cell compartment in the peritoneum, spleen, and bone marrow tissues by flow cytometry. The protocol can be adapted and extended to other mouse tissues.

小鼠B细胞发育的流式细胞学表征

Extensive studies have characterized the development and differentiation of murine B cells in secondary lymphoid organs. Antibodies secreted by B cells ...

<meta charset="utf8"></head><body>小鼠脾源性外泌体分离的改进技术

Isolation and Characterization of Exosomes Derived from Mouse Spleen Tissues

Exosomes (Exo) are lipid-bilayer structures secreted by various cells, including those of animals, plants, and prokaryotes. Previous studies have revealed that Exo derived from humoral or cell-supernatant are promising targets for novel diagnostic or prognostic biomarkers, underscoring their significant role in disease pathogenesis. Tissue-derived Exo (Ti-Exo) have attracted increasing attention due to its ability to accurately reflect tissue specificity and the microenvironment. Ti-Exo, present in interstitial space, play crucial roles in intercellular communication and cross-organ signaling. Despite their recognized value in elucidating disease mechanisms, isolating Ti-Exo remains challenging due to the complexity of tissue matrices and variability in extraction methods. In this study, we developed a practical protocol for isolating exosomes from mice spleen tissue, providing a reproducible technique for subsequent identification analysis and functional studies. We used Type I collagenase digestion combined with differential ultracentrifugation to isolate spleen-derived Exo. The characteristics of isolated Exo were determined through electron microscopy, the nano-flow cytometer, and the western blot. The isolated spleen-derived Exo displayed the typical morphology of lipid bilayer vesicles, with particle sizes ranging from 30 nm to 150 nm. In addition, the expression profile of exosome markers confirmed the presence and purity of exosomes. Taken together, we successfully established a practical protocol for isolating spleen-derived Exo in mice.

<meta charset="utf8"></head><body>小鼠脾脏组织来源的外泌体的分离和表征

Here, we present a protocol to isolate mouse spleen-derived exosomes using a combination of digestion with collagenase type I and ultracentrifugation.

小鼠脾脏组织来源的外泌体的分离和表征

Exosomes (Exo) are lipid-bilayer structures secreted by various cells, including those of animals, plants, and prokaryotes. Previous studies have revealed ...

gentleMACS Dissociator从小鼠脾脏单细胞悬浮液的制备

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此视频中的章节

准备从大鼠脾细胞T细胞生长因子

标准化的制备小鼠肺组织单细胞悬浮液使用gentleMACS Dissociator

从小鼠神经组织产生单细胞悬浮液

流式细胞仪用来评估染色质的T细胞国家

使用紫罗兰兴奋细胞渗透DNA结合染料分离穆林精子生成细胞

基底膜基质封装细胞聚集用于研究小鼠脾脏组织形成

高盐抗原表达树突状细胞的分离和采用转移

小鼠B细胞发育的流式细胞学表征

小鼠脾脏组织来源的外泌体的分离和表征

小鼠脾脏组织来源的外泌体的分离和表征