Bu çalışma NIH hibe AI069358 ve BloodCenter Araştırma Vakfı tarafından kısmen desteklenmiştir.

<ol><li> Işlemine başlamadan önce, aşağıdaki öğeleri toplanmış ve hazırlanmış olması gerekir: <ul><li> Buz </li><li> 27g iğne ile 5ml şırınga </li><li> 25g iğne ile 5ml şırınga </li><li> Strafor blok ve fare montaj pimleri </li><li> Montaj bloğu yerleştirilmiş olabilir Tepsi </li><li> Makas ve forseps </li><li> Toplama tüpleri </li><li> % 70 etanol </li><li> PBS ile% 3 fetal buzağı serumu (FCS) (Ön buz üzerinde soğutulmuş ve muhafaza) </li></ul></li><li> Fare Euthanize,% 70 etanol ile sprey ve sırtında strafor blok üzerine monte edin. </li><li> Bir makas ve forseps kullanarak periton dış deri kesme ve periton boşluğuna kaplayan iç deri hafifçe ortaya çıkarmak için geri çekin. </li><li> 27g bir iğne kullanılarak peritoneal kavite içine buz PBS (% 3 FCS) 5 ml enjekte edilir. Herhangi bir organ dikkatli olmazsanız ponksiyon için periton iğne yavaşça itin. </li><li> Enjeksiyondan sonra, periton PBS çözümü herhangi bir bağlı hücreleri çıkarmak için hafifçe masaj yapın. </li><li> Periton bir 5 ml şırınga bağlı olarak, 25 g iğne, konik takın ve sıvı yağ dokusu veya diğer organlar tarafından tıkanmasını önlemek için iğne ucu hafifçe hareket ettirerek toplamak. Mümkün olduğunca fazla sıvı olarak toplayın ve şırınga iğnesi çıkardıktan sonra buz üzerinde tutulmalıdır tüplerde toplanan hücre süspansiyonu yatırmak. İsteğe Bağlı: Tekrar adım 4-6 </li><li> Periton iç deride bir kesi yapın ve bir forseps ile cilt tutarken boşluğunda kalan sıvı toplamak için plastik bir Pasteur pipeti kullanın. </li><li> 6 ya da 7 adımda görünür kan kontaminasyonu tespit edilirse kontamine örnek atılmalıdır. </li><li> 1500 RPM, 8 dakika boyunca toplanan hücre süspansiyonu Spin süpernatantı atmak ve istenen ortam veya PBS içinde hücre sayımı için tekrar süspansiyon haline getirin. </li></ol> Tiyoglikolat elde Alternatif protokol makrofajlar ortaya çıkardı: Bu yöntem, makrofajların daha yüksek verim elde etmek için kullanılır. <ol><li> % 3 (w / v) her fare periton boşluğuna Brewer tiyoglikolat orta (7) 5 ml enjekte edilir. </li><li> 3-5 gün bekleyin ve hücrelerin toplanması için yukarıdaki 1. adımı geçin. </li></ol> Nonelicited yaklaşımı ile karşılaştırıldığında, yaklaşık 10 kat daha fazla makrofaj toplanabilir. Tek endişe, bu yordamı ile elde edilen makrofajlar bazı fizyolojik özellikleri farklı olduğunu. Temsilcisi sonuçları: Unmanipulated fare, 5-10 milyon periton boşluğuna hücreleri iyi bir izolasyon protokolü ile elde edilebilir. Tüm canlı hücreler arasında,% 50-60 B hücreleri, ~% 30 makrofajlar ve T hücreleri (Şekil 1)% 5-10. <img src="/files/ftp_upload/1488/1488fig1.jpg" alt="Şekil 1" /> Şekil 1. Periton boşluğuna izole hücre fenotipi periton boşluğuna hücreleri takiben izolasyonu ile boyandı anti-fare TCRβ FITC, B220-PE-Texas kırmızı, CD11b-Pasifik mavi, CD23-PE-Cy7 ve CD5-APC. Temsilci akış sitometrik araziler, B ve T hücreleri (a), makrofajlar (b), B1 ve B2 hücreleri (c) ve B1a ve B1b hücreleri (d) yüzdeleri göstermektedir.

<ol>
	<li>Zhang, X., Goncalves, R., Mosser, D. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+isolation+and+characterization+of+murine+macrophages.">The isolation and characterization of murine macrophages.</a> Current Protocols in Immunology. , (2008).</li><li>Boes, M., Prodeus, A. P., Schmidt, T., Carroll, M. C., Chen, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+critical+role+of+natural+immunoglobulin+M+in+immediate+defense+against+systemic+bacterial+infection.">A critical role of natural immunoglobulin M in immediate defense against systemic bacterial infection.</a> J. Exp. Med. 188, 2381-2386 (1998).</li><li>Mc Daniel, L. S., Benjamin, W. H., Forman, C., Briles, 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=Blood+clearance+by+anti-phosphocholine+antibodies+as+a+mechanism+of+protection+in+experimental+pneumococcal+bacteremia.">Blood clearance by anti-phosphocholine antibodies as a mechanism of protection in experimental pneumococcal bacteremia.</a> J. Immunol. 133, 3308-3312 (1984).</li><li>Paciorkowski, N., Porte, P., Shultz, L. D., Rajan, T. V. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=B1+B+lymphocytes+play+a+critical+role+in+host+protection+against+lymphatic+filarial+parasites.">B1 B lymphocytes play a critical role in host protection against lymphatic filarial parasites.</a> J. Exp. Med. 191, 731-736 (2000).</li><li>Mercolino, T. J., Arnold, L. W., Hawkins, L. A., Haughton, G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Normal+mouse+peritoneum+contains+a+large+population+of+Ly-1++(CD5)+B+cells+that+recognize+phosphatidyl+choline:+relationship+to+cells+that+secrete+hemolytic+antibody+specific+for+autologous+erythrocytes.">Normal mouse peritoneum contains a large population of Ly-1+ (CD5) B cells that recognize phosphatidyl choline: relationship to cells that secrete hemolytic antibody specific for autologous erythrocytes.</a> J. Exp. Med. 168, 687-698 (1988).</li><li>O'Garra, A., Chang, R., Go, N., Hastings, R., Haughton, G., Howard, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Ly-1+B+(B-1)+cells+are+the+main+source+of+B+cell+derived+interleukin+10.">Ly-1 B (B-1) cells are the main source of B cell derived interleukin 10.</a> Eur. J. Immunol. 22, 711-717 (1992).</li><li>Hoover, D. L., Nacy, C. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Macrophage+activation+to+kill+Leishmania+tropica:+Defective+intracellular+killing+of+amastigotes+by+macrophages+elicited+with+sterile+inflammatory+agents.">Macrophage activation to kill Leishmania tropica: Defective intracellular killing of amastigotes by macrophages elicited with sterile inflammatory agents.</a> J. Immunol. 132, 1487-1491 (1984).</li><li>Austin, P. E., McCulloch, E. A., Till, J. E. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Characterization+of+the+factor+in+L-cell+conditioned+medium+capable+of+stimulating+colony+formation+by+mouse+marrow+cells+in+culture.">Characterization of the factor in L-cell conditioned medium capable of stimulating colony formation by mouse marrow cells in culture.</a> J. Cell Physiol. 77, 121-134 (1971).</li><li>Stanley, E. R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+macrophage+colony-stimulating+factor,+CSF-1.">The macrophage colony-stimulating factor, CSF-1.</a> Methods Enzymol. 116, 564-587 (1985).</li><li>Baumgarth, N., Chen, J., Herman, O. C., Jager, G. C., Herzenberg, L. 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+role+of+B-1+and+B-2+cells+in+immune+protection+from+influenza+virus+infection.">The role of B-1 and B-2 cells in immune protection from influenza virus infection.</a> Curr. Top. Microbiol. Immunol. 252, 163-169 (2000).</li><li>Baumgarth, N., Herman, O. C., Jager, G. C., Brown, L. E., Herzenberg, L. A., Chen, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=B-1+and+B-2+cell-derived+immunoglobulin+M+antibodies+are+nonredundant+components+of+the+protective+response+to+influenza+virus+infection.">B-1 and B-2 cell-derived immunoglobulin M antibodies are nonredundant components of the protective response to influenza virus infection.</a> J. Exp. Med. 192, 271-280 (2000).</li><li>Berland, R., Wortis, H. H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Origins+and+functions+of+B-1+cells+with+notes+on+the+role+of+CD5.">Origins and functions of B-1 cells with notes on the role of CD5.</a> Annu. Rev. Immunol. 20, 253-300 (2002).</li></ol>

Periton boşluğuna hücrelerinin izolasyonu, farklı bağışıklık hücreleri, başta makrofajlar ve spesifik B hücre alt çalışma için önemli bir tekniktir. Bu basit bir süreç olmasına rağmen, bazı kritik adımlar vardır. Saf bir periton boşluğuna hücre popülasyonu elde etmek için toplanan örnek kan kirlenmesine varlığı kaçınılmalıdır. Servikal dislokasyon tarafından Ötenazi periton boşluğunda kan kirlenmesini önlemek için dikkatli bir şekilde yapılmalıdır. Alternatif olarak CO 2 kullanılabilir. Buna ek olarak, prosedüre uygun bakım sırasında peritoneal kavite, mesane ya da herhangi bir diğer organlara delinmesiyle önlemek için alınmalıdır. Enjekte edilen sıvı en kurtarma, hücre verimi önemlidir. Bu prosedürü, yaygın olarak orta numaraları bu yana ikamet eden makrofaj biyoloji okumak için kullanılır, unstimulated makrofajlar kolayca makrofaj koloni stimüle edici faktör (8 kullanılarak, in vitro olgun makrofajlara miyeloid progenitör hücrelerin ayırt zahmetli görev aksine, periton boşluğuna elde edilebilir , 9). Tiyoglikolat kullanımı makrofajlar (7) fizyolojik özelliklerini değiştirebilir olsa da periton boşluğunda makrofaj verim, tiyoglikolat ortaya çıkarma yöntemi kullanarak geliştirilebilir. B hücreleri bağışıklık sisteminin doğal ve adaptif bağışıklık hem de önemli rol oynayan önemli bir parçasıdır. Farklı B hücre alt arasında, B1 hücreleri B hücreleri doğuştan gelen bağışıklık, otoimmünite ve bağışıklık düzenleme yer eşsiz bir alt oluşmaktadır. B1 hücreler öncelikle periton boşluğunda bulunan ve kendini yeniler. Onlar, ilk satırı, bir virüs sayısı ve bakteriler (10-12) karşı koruma sağlar doğal IgM birincil üreticiler biri. B1 hücreler de immün regülasyon yer alan önemli bir sitokin olan IL-10 (6), önemli bir kaynağıdır. B1 hücreleri ile çeşitli çalışmalar takip olmasına rağmen, hala özel, kendi karşıt fonksiyonları daha fazla değerlendirme için düzenleyici rol kapsamı vardır. Periton boşluğuna hücre izolasyon yöntemi B1 hücrelerinin fonksiyonlarını incelemek için eşsiz bir fırsat sunuyor.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">	
		
		<div>
		<table border="1">
		<thead>
		<tr>
		<th>Material Name</th>
		<th>Type</th>
		<th>Company</th>
		<th>Catalogue Number</th>
		<th>Comment</th>
		</tr>
		</thead>
		<tbody>
		
<tr>
<td>Thioglycollate Medium, Brewer Modified</td>
<td>&nbsp;</td>
<td>BD BBL</td>
<td>211716</td>
<td>&nbsp;</td>		</tbody>
		</table>
		</div>

isolation of mouse peritoneal cavity cells

Periton boşluğuna memelilerin karaciğer, dalak, mide-bağırsak ve diğer iç organları içeren bir membran-bağlı ve karın boşluğunda sıvı dolu. Bu bağışıklık hücreleri, makrofajlar, B hücreleri ve T hücreleri de dahil olmak üzere bir dizi barındırıyor. Periton boşluğunda naif makrofajlar yüksek sayıda varlığı naif doku ikamet eden makrofaj (1) toplanması için tercih edilen bir site yapar. Peritoneal kavite varlığı nedeniyle geleneksel B2 hücrelerine ek olarak B1 hücreler olarak bilinen eşsiz bir periton boşluğuna yerleşik B hücre alt B hücreleri çalışma için önemlidir. B1 hücreleri CD11b ve CD5 yüzey ifadesi ile ayırt edilebilir B1a ve B1b hücreleri, bölünmüştür. B1 hücreleri çeşitli patojenler (2-4) bir erken koruma sağlayan doğal IgM önemli bir kaynak. Bu hücreler, Doğa (5) otoreaktif, ama onlar otoimmünite önlemek için nasıl kontrol edilir hala tam olarak anlaşılmış değildir. Aksine, CD5<sup&gt; +</sup&gt; B1a hücreleri IL-10 üretim kapasitesi (6) sayesinde bazı düzenleyici özelliklere sahip. Bu nedenle, periton boşluğuna B1 hücreleri çünkü farklı fonksiyon ve onların gelişmesi ve düzenlenmesi ile ilgili birçok adressiz sorular çalışma ilginç bir hücre popülasyonu. Periton boşluğuna ikamet eden bağışıklık hücrelerinin izolasyon peritoneal kavite içinde tanımlanmış bir yapı eksikliği nedeniyle zordur. Bizim protokolü sonra flow sitometri ve farklı biyokimyasal ve immünolojik testleri için fenotipik analizi için kullanılabilir farelerin periton boşluğu, canlı bağışıklık hücreleri elde etmek için bir prosedür anlatacağız.

Watch this Scientific Journal Video about Isolation of Mouse Peritoneal Cavity Cells at JoVE.com

Isolation of Mouse Peritoneal Cavity Cells

Periton boşluğuna memelilerde doğuştan gelen bağışıklık yanıtları için çok önemli olan farklı bağışıklık hücre popülasyonlarının içerir. Verimli bir izolasyon yöntemi, bu hücrelerin biyokimyasal ve fonksiyonel analizler için gereklidir. Burada fare periton boşluğuna hücrelerin izolasyonu için kapsamlı bir yöntem sağlar.

Fare Periton Boşluk Hücreleri İzolasyon

The peritoneal cavity is a membrane-bound and fluid-filled abdominal cavity of mammals, which contains the liver, spleen, most of the gastro-intestinal ...

isolation-of-mouse-peritoneal-cavity-cells

Research

JoVE Journal

Immunology and Infection

142.8K Görüntüleme.  Blood Research Institute. Periton boşluğuna memelilerde doğuştan gelen bağışıklık yanıtları için çok önemli olan farklı bağışıklık hücre popülasyonlarının içerir. Verimli bir izolasyon yöntemi, bu hücrelerin biyokimyasal ve fonksiyonel analizler için gereklidir. Burada fare periton boşluğuna hücrelerin izolasyonu için kapsamlı bir yöntem sağlar.

Video: Isolation of Mouse Peritoneal Cavity Cells

Isolation of Functional Cardiac Immune Cells

Cardiac immune cells are gaining interest for the roles they play in the pathological remodeling in many cardiac diseases.1-5 These immune cells, which include mast cells, T-cells and macrophages; store and release a variety of biologically active mediators including cytokines and proteases such as tryptase.6-8 These mediators have been shown to be key players in extracellular matrix metabolism by activating matrix metalloproteinases or causing collagen accumulation by modulating the cardiac fibroblasts' function.9-11 However, available techniques for isolating cardiac immune cells have been problematic because they use bacterial collagenase to digest the myocardial tissue. This technique causes activation of the immune cells and thus a loss of function. For example, cardiac mast cells become significantly less responsive to compounds that cause degranulation.12 Therefore, we developed a technique that allows for the isolation of functional cardiac immune cells which would lead to a better understanding of the role of these cells in cardiac disease.13, 14
This method requires a familiarity with the anatomical location of the rat's xiphoid process, axilla and falciform ligament, and pericardium of the heart. These landmarks are important to increase success of the procedure and to ensure a higher yield of cardiac immune cells. These isolated cardiac immune cells can then be used for characterization of functionality, phenotype, maturity, and co-culture experiments with other cardiac cells to gain a better understanding of their interactions.

This method for isolating functional immune cells from the heart provides an alternative to the conventional methods of collagenase digestion, which causes unwanted immune cell activation, resulting in a decreased responsiveness of these cells. Our method of isolation yields functional cardiac immune cells by avoiding problems associated with enzymatic digestion.

Fonksiyonel Kardiyak Bağışıklık Hücreleri İzolasyon

Cardiac immune cells are gaining interest for the roles they play in the pathological remodeling in many cardiac diseases.1-5  These immune cells, which ...

İmmünoloji ve Enfeksiyon

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.

Fare Akciğer Dendritik Hücrelerinin İzolasyonu

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 ...

Isolation and Characterization of Dendritic Cells and Macrophages from the Mouse Intestine

Within the intestine reside unique populations of innate and adaptive immune cells that are involved in promoting tolerance towards commensal flora and food antigens while concomitantly remaining poised to mount inflammatory responses toward invasive pathogens1,2. Antigen presenting cells, particularly DCs and macrophages, play critical roles in maintaining intestinal immune homeostasis via their ability to sense and appropriately respond to the microbiota3-14. Efficient isolation of intestinal DCs and macrophages is a critical step in characterizing the phenotype and function of these cells. While many effective methods of isolating intestinal immune cells, including DCs and macrophages, have been described6,10,15-24, many rely upon long digestions times that may negatively influence cell surface antigen expression, cell viability, and/or cell yield. Here, we detail a methodology for the rapid isolation of large numbers of viable, intestinal DCs and macrophages. Phenotypic characterization of intestinal DCs and macrophages is carried out by directly staining isolated intestinal cells with specific fluorescence-labeled monoclonal antibodies for multi-color flow cytometric analysis. Furthermore, highly pure DC and macrophage populations are isolated for functional studies utilizing CD11c and CD11b magnetic-activated cell sorting beads followed by cell sorting.

Here, we detail a methodology for the rapid isolation of mouse intestinal dendritic cells (DCs) and macrophages. Phenotypic characterization of intestinal DCs and macrophages is performed using multi-color flow cytometric analysis while magnetic bead enrichment followed by cell sorting is used to yield highly pure populations for functional studies.

Fare Barsak ayrı dendritik hücreler ve makrofajlar İzolasyonu ve Karakterizasyonu

Within the intestine reside unique populations of innate and adaptive immune cells that are involved in promoting tolerance towards commensal flora and ...

Isolation of Lymphocytes from Mouse Genital Tract Mucosa

Mucosal surfaces, including in the gastrointestinal, urogenital, and respiratory tracts, provide portals of entry for pathogens, such as viruses and bacteria 1. Mucosae are also inductive sites in the host to generate immunity against pathogens, such as the Peyers patches in the intestinal tract and the nasal-associated lymphoreticular tissue in the respiratory tract. This unique feature brings mucosal immunity as a crucial player of the host defense system. Many studies have been focused on gastrointestinal and respiratory mucosal sites. However, there has been little investigation of reproductive mucosal sites. The genital tract mucosa is the primary infection site for sexually transmitted diseases (STD), including bacterial and viral infections. STDs are one of the most critical health challenges facing the world today. Centers for Disease Control and Prevention estimates that there are 19 million new infectious every year in the United States. STDs cost the U.S. health care system $17 billion every year 2, and cost individuals even more in immediate and life-long health consequences. In order to confront this challenge, a greater understanding of reproductive mucosal immunity is needed and isolating lymphocytes is an essential component of these studies. Here, we present a method to reproducibly isolate lymphocytes from murine female genital tracts for immunological studies that can be modified for adaption to other species. The method described below is based on one mouse.&#x2003;

An efficient way to isolate lymphocytes from mouse genital tract is described. This method takes advantage of enzyme digestion and Percoll gradient separation to allow efficient isolation. This technique is also adaptable to for use in other species

Fare Genital Sistemlerinin Mukozanin gelen Lenfosit İzolasyonu

Mucosal surfaces, including in the gastrointestinal, urogenital, and respiratory tracts, provide portals of entry for pathogens, such as viruses and ...

Isolation of Adipose Tissue Immune Cells

The discovery of increased macrophage infiltration in the adipose tissue (AT) of obese rodents and humans has led to an intensification of interest in immune cell contribution to local and systemic insulin resistance. Isolation and quantification of different immune cell populations in lean and obese AT is now a commonly utilized technique in immunometabolism laboratories; yet extreme care must be taken both in stromal vascular cell isolation and in the flow cytometry analysis so that the data obtained is reliable and interpretable. In this video we demonstrate how to mince, digest, and isolate the immune cell-enriched stromal vascular fraction. Subsequently, we show how to antibody label macrophages and T lymphocytes and how to properly gate on them in flow cytometry experiments. Representative flow cytometry plots from low fat-fed lean and high fat-fed obese mice are provided. A critical element of this analysis is the use of antibodies that do not fluoresce in channels where AT macrophages are naturally autofluorescent, as well as the use of proper compensation controls.

Adipose tissue (AT) is a site of intense immune cell activation and interaction. Almost all cells of the immune system are present in AT and their ratios are altered by obesity. Proper isolation, quantification, and characterization of AT immune cell populations are critical for understanding their role in immunometabolic disease.

Yağ Doku Bağışıklık Hücre İzolasyonu

The discovery of increased macrophage infiltration in  the adipose tissue (AT) of obese rodents and humans has led to an  intensification of interest in ...

Isolation of Murine Peritoneal Macrophages to Carry Out Gene Expression Analysis Upon Toll-like Receptors Stimulation

During infection and inflammation, circulating monocytes leave the bloodstream and migrate into tissues, where they differentiate into macrophages. Macrophages express surface Toll-like receptors (TLRs), which recognize molecular patterns conserved through evolution in a wide range of microorganisms. TLRs play a central role in macrophage activation which is usually associated with gene expression alteration. Macrophages are critical in many diseases and have emerged as attractive targets for therapy. In the following protocol, we describe a procedure to isolate murine peritoneal macrophages using Brewer&#8217;s thioglycollate medium. The latter will boost monocyte migration into the peritoneum, accordingly this will raise macrophage yield by 10-fold. Several studies have been carried out using bone marrow, spleen or peritoneal derived macrophages. However, peritoneal macrophages were shown to be more mature upon isolation and are more stable in their functionality and phenotype. Thus, macrophages isolated from murine peritoneal cavity present an important cell population that can serve in different immunological and metabolic studies. Once isolated, macrophages were stimulated with different TLR ligands and consequently&#160;gene expression was evaluated.

We describe here a simple protocol to isolate murine peritoneal macrophages. This procedure is followed by RNA extraction to carry out gene expression analysis upon Toll-like receptors stimulation.

Fare Periton Makrofagların izolasyonu Toll-benzeri reseptörler Uyarım üzerine Gen İfadesi Analizi Yapacak

During infection and inflammation, circulating monocytes leave the bloodstream and migrate into tissues, where they differentiate into macrophages. ...

Isolation of Sertoli Cells and Peritubular Cells from Rat Testes

The testis, and in particular the male gamete, challenges the immune system in a unique way because differentiated sperm first appear at the time of puberty - more than ten years after the establishment of systemic immune tolerance. Spermatogenic cells express a number of proteins that may be seen as non-self by the immune system. The testis must then be able to establish tolerance to these neo-antigens on the one hand but still be able to protect itself from infections and tumor development on the other hand. Therefore the testis is one of a few immune privileged sites in the body that tolerate foreign antigens without evoking a detrimental inflammatory immune response. Sertoli cells play a key role for the maintenance of this immune privileged environment of the testis and also prolong survival of cotransplanted cells in a foreign environment. Therefore primary Sertoli cells are an important tool for studying the immune privilege of the testis that cannot be easily replaced by established cell lines or other cellular models. Here we present a detailed and comprehensive protocol for the isolation of Sertoli cells - and peritubular cells if desired - from rat testes within a single day.

Primary Sertoli cells are required for studying testis-immune privilege, signal transduction during inflammation or infection, and utilization of their immunoprotective properties. Here we describe an enzyme-based protocol for the isolation of highly purified primary Sertoli cells and peritubular cells from rat testes.

Sıçan Testislerindeki Sertoli Hücreleri İzolasyon ve peritübüler Hücreler

The testis, and in particular the male gamete, challenges the immune system in a unique way because differentiated sperm first appear at the time of ...

Isolation and Flow Cytometric Analysis of Immune Cells from the Ischemic Mouse Brain

Ischemic stroke initiates a robust inflammatory response that starts in the intravascular compartment and involves rapid activation of brain resident cells. A key mechanism of this inflammatory response is the migration of circulating immune cells to the ischemic brain facilitated by chemokine release and increased endothelial adhesion molecule expression. Brain-invading leukocytes are well-known contributing to early-stage secondary ischemic injury, but their significance for the termination of inflammation and later brain repair has only recently been noticed.
Here, a simple protocol for the efficient isolation of immune cells from the ischemic mouse brain is provided. After transcardial perfusion, brain hemispheres are dissected and mechanically dissociated. Enzymatic digestion with Liberase&#160;is followed by density gradient (such as Percoll) centrifugation to remove myelin and cell debris. One major advantage of this protocol is the single-layer density gradient procedure which does not require time-consuming preparation of gradients and can be reliably performed. The approach yields highly reproducible cell counts per brain hemisphere and allows for measuring several flow cytometry panels in one biological replicate. Phenotypic characterization and quantification of brain-invading leukocytes after experimental stroke may contribute to a better understanding of their multifaceted roles in ischemic injury and repair.

Inflammation plays a central role in the pathogenesis of ischemic stroke. Increasing evidence suggests that it acts as a double-edged sword which exacerbates early brain injury, but also contributes to later repair. This protocol describes the isolation of immune cells from the ischemic brain and their subsequent flow cytometric phenotyping.

İskemik Fare Beyin gelen Bağışıklık Hücreleri İzolasyon ve Akım Sitometrisi Analizi

Ischemic stroke initiates a robust inflammatory response that starts in the intravascular compartment and involves rapid activation of brain resident ...

Using Enhanced Green Fluorescence Protein-expressing Escherichia Coli to Assess Mouse Peritoneal Macrophage Phagocytosis

This manuscript describes a simple and reproducible method to perform a phagocytosis assay. The first part of this method involves building a pET-SUMO-EGFP vector (SUMO = small ubiquitin-like modifier) and expressing enhanced green fluorescence protein (EGFP) in Escherichia coli (BL21DE). EGFP-expressing E. coli is coincubated with macrophages for 1 h at 37 &#176;C; the negative control group is incubated on ice for the same amount of time. Then, the macrophages are ready for assessment. The advantages of this technique include its simple and straightforward steps, and phagocytosis can be measured by both flow cytometer and fluorescence microscope. The EGFP-expressing E. coli are stable and display a strong fluorescence signal even after the macrophages are fixed with paraformaldehyde. This method is not only suitable for the assessment of macrophage cell lines or primary macrophages in vitro but also suitable for the evaluation of granulocyte and monocyte phagocytosis in peripheral blood mononuclear cells. The results show that the phagocytic capability of peritoneal macrophages from young (eight-week-old) mice is higher than that of macrophages from aged (16-month-old) mice. In summary, this method measures macrophage phagocytosis and is suitable for studying the innate immune system function.

Using Enhanced Green Fluorescence Protein-expressing Escherichia Coli to Assess Mouse Peritoneal Macrophage Phagocytosis

Here, we present a protocol to assess mouse peritoneal macrophage phagocytosis using enhanced green fluorescence protein-expressing Escherichia coli.

Yeşil floresans Protein-ifade gelişmiş kullanma fare Peritoneal makrofaj fagositoz değerlendirmek için Escherichia Coli

This manuscript describes a simple and reproducible method to perform a phagocytosis assay. The first part of this method involves building a ...

Isolation and Quantitative Evaluation of Brush Cells from Mouse Tracheas

Tracheal brush cells are cholinergic chemosensory epithelial cells poised to transmit signals from the airway lumen to the immune and nervous systems. They are part of a family of chemosensory epithelial cells which include tuft cells in the intestinal mucosa, brush cells in the trachea, and solitary chemosensory and microvillous cells in the nasal mucosa. Chemosensory cells in different epithelial compartments share key intracellular markers and a core transcriptional signature, but also display significant transcriptional heterogeneity, likely reflective of the local tissue environment. Isolation of tracheal brush cells from single cell suspensions is required to define the function of these rare epithelial cells in detail, but their isolation is challenging, potentially due to the close interaction between tracheal brush cells and nerve endings or due to airway-specific composition of tight and adherens junctions. Here, we describe a procedure for isolation of brush cells from mouse tracheal epithelium. The method is based on an initial separation of tracheal epithelium from the submucosa, allowing for a subsequent shorter incubation of the epithelial sheet with papain. This procedure offers a rapid and convenient solution for flow cytometric sorting and functional analysis of viable tracheal brush cells.

Brush cells are rare cholinergic chemosensory epithelial cells found in the na&#239;ve mouse trachea. Due to their limited numbers, ex vivo evaluation of their functional role in airway immunity and remodeling is challenging. We describe a method for isolation of tracheal brush cells by flow cytometry.

Fırça hücrelerinin Mouse tracheas 'tan izolasyon ve nicel değerlendirilmesi

Tracheal brush cells are cholinergic chemosensory epithelial cells poised to transmit signals from the airway lumen to the immune and nervous systems. ...