The authors thank Sanjiv Luther and colleagues for helpful discussions in establishing the current lymph node digestion protocol. This work was supported by SNF grants PPOOA-_119204 and PPOOP3_144918 to S.W.R.

이 비디오를 게시 및 프로토콜에서 모든 동물의 절차는 분할 한 기관 바젤 슈타 트, 스위스의 승인을 동물의 프로토콜에 따라 실시 하였다. 1 림프절 준비 및 소화 <ol><li> 가열 플레이트 자석 교반기 37 ° C에 비커 초기 가열 물. </li><li> 다음과 같은 기본 미디어를 준비 : DMEM 배지 (피루 베이트 제외) 2 % FCS로 보충, 1.2 mM의 염화칼슘 및 펜 / 연쇄상 구균 (페니실린의 100 단위, 스트렙토 마이신 100 μg). </li><li> 사용하기 전에 모든 해부 도구를 소독. </li><li> CO 2 질식 당 림프절 공여 쥐를 안락사 및 무균 적으로 림프절을 해부하다. 주위의 지방을 해부하지 마십시오. 참고 :이 프로토콜은 주변 피부 배수 림프절 (사타구니, 상완, 겨드랑이)에 최적화되어 있습니다. </li><li> 2 ㎖의 차가운 얼음 기본적인 매체를 포함하는 멸균 페트리 접시에 림프절을 놓습니다. </li><li> 림프절 캘리포니아를 중단1 ML의 주사기에 고정이 25 G 바늘을 사용하여 psule. </li><li> 1 밀리그램 / ㎖의 콜라게나 제 IV 및 40 μg / ml의 DNase의 I. 보충 된 750 ㎕의 배지를 함유 염기성 5 ㎖ 폴리 프로필렌 둥근 바닥 튜브에 방해 림프절 조직을 이동시켜 </li><li> 각 튜브에서 하나의 멸균 자석 교반기를 추가합니다. </li><li> 37 ° C로 비커에 넣어 튜브는 물을 예열하고 30 분 동안 느린 속도 (1 라운드 / 초)에서 튜브를 저어. </li><li> 가열 플레이트 자석 교반기에서 튜브를 제거하고 림프절 조각이 정착 할 수 있습니다. </li><li> 조심스럽게 &quot;비 기질 세포&quot;풍부한 뜨는을 제거합니다. 참고 : T, B, 수지상 세포와 CD45의 분석 경우 - gp38 - CD31가 - 예상된다 &quot;비 기질 세포&quot;부분을 저장합니다. </li><li> 워시는 750 ㎕를 기본 매체로 한번 림프절 조직을 나머지. 참고 :이 단계는 면역 능력 마우스로 작업하는 경우에만 필요합니다. </li><li> 림프절 조각이 정착하자. </li><li> 제거비 기질 세포 부동 분수. </li><li> 750 ㎕의 기본 매체가 3.5 mg을 보충 림프절 조각에 추가 / ㎖ 콜라게나 D 40 μg / ml의 DNase의 I. </li><li> 다시 37 ° C가 들어있는 비커에 넣어 튜브는 물을 예열. </li><li> 천천히 교반하면서 5 분 동안 림프절 조직 다이제스트. </li><li> 피펫 및 자동화 된 멀티 채널 피펫을 사용하여 최대한의 속도로 10 회 700 μl를 혼합하여 해리하는 림프절 조직 조각. NOTE :이 소화를 향상시키기 림프절 조직을 방해. </li><li> 37 ° C 예열 된 물을 다시 비커에 튜브를 놓습니다. </li><li> 천천히 교반하면서 또 10 분간 다이제스트 림프절 조직 단편. </li><li> 피펫에 의해 림프절 조직 조각을 해리하는 자동화 된 멀티 채널 피펫을 사용하여 최대한의 속도로 99 사이클 혼합. </li><li> 단일 세포 현탁액의 유지 보수를 보장하기 위해 0.5 M EDTA (에틸렌 다이아 민 테트라 초산) 7.5 μl를 추가합니다. </li><li> 파이프에 의해 해리하는 림프절 조직 절편tting 및 자동화 된 멀티 채널 피펫을 사용하여 최대한의 속도로 99 사이클 혼합. </li><li> 750 ㎕의 기본 매체를 추가하고 70 μm의 나일론 메쉬를 통해 세포를 전달합니다. </li><li> 원심 분리기 세포 현탁액 1500 XG에 5 분, 4 ° C에서. </li><li> 간질 세포를 추가 분석을 위해 이제 사용될 수있다. </li></ol> 림프절 기질 세포의 2 염색 <ol><li> 성공적 TRC, LEC, BEC 및 DN 세포를 인식하는 항-CD45, 항 podoplanin (gp38), 항-CD31 항체의 조합을 사용한다. </li><li> , 안티 gp38-PE (1 : 200), 항 CD31-APC (1 : 200) 100 ㎕를 HBSS의 2를 포함 : 라이브 / 죽은 추적기, 항 CD45-FITC (200 일)로 소화 림프절 조직을 품어 어둠 속에서 20 분 이상, 4 ° C에 대한 % FCS. </li><li> 2 % FCS를 포함 HBSS의 5백리터를 추가 세포를 씻으 </li><li> 원심 분리기 세포 현탁액 1500 XG에 3 분, 4 ° C에서. </li><li> 2 % FCS를 포함 HBSS 100 ㎕에 다시 일시 중지합니다. </li><li> equipp 플로우 사이토에 염색 된 세포를 실행다음 광학 에드 : 여기까지 세 레이저를 소스 : 청색 (488 nm의, 공기 냉각, 20 mW의 고체 상태), 적색 (파장 633 nm, 17 mW의 헬륨 네온), 바이올렛 (405 나노 미터, 30 mW의 고체 상태) . </li><li> 게이트 CD45 - 세포는 조혈 세포를 제외합니다. </li><li> 게이트 단봉 (FSC-W) 및 살아있는 세포 (LIVE / DEAD 추적기) 이중선과 죽은 세포를 제외합니다. </li><li> , LEC (gp38 + CD31 +), BEC (gp38 - CD31 +) 및 DN (gp38 - CD31 -) 세포 (그림 1 참조) - CD31 대 플롯 gp38는 TRC (gp38 + CD31)를 시각화합니다. </li></ol>

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The authors declare they have no competing financial interests.

림프절 기질 세포의 연구는 최근에 의한 소화 작용이 발행 프로토콜 6,13의 개발에 연구 초점이되었다. 두 프로토콜은 단일 림프절 간질 세포를 획득하기에 적절하지만, 소화 효소의 이용과 소화의 시간 차이가있다. 기질 세포와 그 표면 마커 효소 소화와 기계적 스트레스에 민감하기 때문에, 최적화 된 프로토콜이 필요합니다. 갓 해부 림프절에서 가능한 림프절 기?...

림프절은 외국과 자기 항원에 대한 적응 면역 반응이 시작되고 조정되는 전문 구획입니다. 여기에 제시된 절차 림프절 단일 세포 현탁액을 수득하고 여러 분자의 표면 발현을 유지 가능한 림프절 기질 세포에 접근하기 위해 자동화 된 기계적인 피펫 결합 단편의 효소 소화를 설명한다. 림프절 기질 세포가 세 가지 주요 기능을 림프 노드의 골격을 형성하고 이행 : 첫째가 체액 항원, 병원균과 병원균 관련 분자 패턴 (PAMPS)뿐만 아니라, 사이토 카인 및 위험 관련 분자 패턴을 샘플링 필터 (감쇠) 본 몸에. 둘째, 상호 작용 및 적응 면역 반응을 시작하는 항원 제시 세포 (APC)와 림프구를 유치하고 지시; 셋째, 이들은 하나의 림프구 항상성 및 분화 구조 환경을 제공-3입니다. 염증 림프절 기질 세포는 성장 인자, 사이토 카인 및 케모카인을 생산하는 동안, 수지상 세포 간의 상호 작용을 편성함으로써, T- 및 B- 세포 종기에 적응. 면역 반응의 오케스트레이션으로 인해 서로 다른 기질 세포 집단에 의해 형성되는 복잡한 구조 아키텍처에만 가능합니다. 림프절 간질 세포가 CD45 음성 세포와 섬유 모세포하며 내피 세포 1-6에서 CD31의 발현 또는 gp38에 의해 구별 될 수있다. CD31 + 혈액 내피 세포를 정의 (BEC)를 - gp38 + CD31 + 림프 내피 세포 (LEC), gp38를 정의 - Gp38 + CD31는 (섬유 모세포 망상 세포 또한 FRC로 알려진 TRC) T 존 망상 세포를 정의합니다. 또한, 특정 집단의 특성은 다른 림프절 기질 세포의 존재를 한 것으로 밝혀졌습니다. 실제로 작은 주연 세포와 같은 세포 집단은 내에 특성화시켰다gp38 - CD31 - 인구 7. 따라서, 분리 절차의 적응은 다른 림프절 기질 세포의 기능적 특성의 확인 및 특성화를 위해 유리하다. 림프절 기질 세포 소화 개발 전에 림프절 기질 세포의 연구는 조직 절편 및 현미경을 이용한 관찰에 시츄로 제한 프로토콜. 그럼에도 불구하고, 구조적 및 기능적 연구는 림프절 기질 세포의 중요한 특성을 보였다. 림프절 기질 세포는 높은 내피로 림프절의 낭하 부비동에서 림프와 연관된 낮은 분자량 단백질을 수송 도관 시스템이라고 복잡한 3 차원 구조를 형성하기 위해 podoplanin, 콜라겐과 세포 외 기질 (ECM) 단백질과 연결된 T 세포 영역에서 8 세정맥. 수지상 세포는 간질에 밀착되고 관형 콘으로 돌출 관찰 될 수있다duit 구조는 유체 샘플 8 및 항원을 검출한다. 수지상 세포와 림프절 기질 세포 (TRC를 사용해 및 수정체 상피)의 상호 작용은 케모카인의 CCL21와 CCL19 9, 10의 출시와 프리젠 테이션에 의해 매개된다. CCL19와 CCL21은 림프절의 T 세포 영역 4,11로 이전 수지상 및 T 세포를 촉진 CCR7 수용체에 의해 인식됩니다. 비슷한 케모카인을 사용에도 불구하고, 수지상와 T 세포는 림프절 (12)에 서로 다른 이동 경로를 가지고있다. 나중에, 림프절 및 순수한 림프절 기질 세포의 분리의 소화 효소를 사용하여 기능적 연구는 상이한 림프절 간질 세포의 역할과 수지상 세포와 T / B 세포 6,13와 상호 작용하는 그들의 능력에 대해 수행 하였다. 우선, IFN-γ 생산 효과기 T 세포 및 림프절 기질 세포 사이의 크로스 토크는 보조 림프 기관 14-16에서 T 세포 반응과 확산을 저해하는 것으로 대사 산화 질소의 생산을 유도한다. 둘째, 림프 N송시 기질 세포는 IL-10 (17)의 생산을 통해 규제 DC 서브 세트들의 분화를 지원하기 위해, 및 IL-7의 제조 6,18 통해 나이브 T 세포의 항상성을 조절하는 것으로보고되었다. 셋째, 림프절 기질 세포의 TLR 발현은 간질 세포가 조직 손상 중에 방출 감염 또는자가 유래의 분자 신호에 민감한 것을 시사한다. 실제로, TLR3 폴리 리간드와 림프절 기질 세포의 치료 (I는 : C)의 결과, 주요 조직 적합성 복합체 클래스 I 발현 및 공동 억제 분자 PD-L1의 상향 조절의 완만 한 상향 조절을 유도하고 있지만 보조 자극 분자 주변 조직의 극적인 변화는 식 (19) 항원. 몇몇 그룹은 림프절 기질 세포가 말초 조직 항원을 발현하고 자기 반응성 T 세포의 19,21-27 내성을 유도 보였다. 따라서, 림프절 기질 세포 및 다른 이동성 재 사이의 상호 작용을 이해sident 림프절 세포는 염증 동안에 활성 또는 면역 반응의 억제를 허용하는 새로운 표적 분자를 찾는 데 도움이 될 것이다. 따라서, 림프절의 발행 효소 분리의 구현이 필요하다. 이전에 게시 된 프로토콜은 낮은 기계적 스트레스 6,19,20와 콜라겐 기반의 효소 소화의 다른 조합을 사용합니다. 그러나 소화 효소 나 소화 효소의 상이한 조합을 가진 긴 인큐베이션 활성화 상태를 분석하고 새로운 림프절 기질 세포를 식별하기 위해 필요한 다양한 표면 분자를 저하 될. 간질 세포 분석의 유형에 따라, 링크 프로토콜 또는 프로토콜 플레쳐 더 적합 할 수도있다. 설명 된 절차에서 다소 짧은 효소 소화가 가능한 림프절 기질 세포 표면 마커의 열화를 최소화하기 위해 자동화 된 기계식 세분화와 결합된다. 이 절차는 재현성이 높은 절연을 가능하게하고낮은 변동성과 95 % 이상의 생존으로 림프절 간질 세포 집단의 차이. 갓 절연 림프절 기질 세포는 시험 관내에서 직접 작용 분석을 수행하는 기질 세포 라인의 표면 마커의 발현, 단백질 분석, 전사 연구뿐만 아니라 설정에 사용될 수있다.

<table><tbody><tr><td>DMEM</td><td>LifeTechnologies-Gibco</td><td>41965-039</td><td></td></tr><tr><td>FCS</td><td></td><td></td><td>Final concentration 2%</td></tr><tr><td>CaCl2</td><td>Sigma</td><td>499609</td><td>Final concentration 1.2 mM</td></tr><tr><td>Collagenase IV</td><td>Worthington Biochemical Corporation</td><td></td><td>&gt;160 units per mg dry weight, use at final concentration of 1 mg/ml</td></tr><tr><td>Collagenase D</td><td>Roche</td><td>11088882001</td><td>use at 3.5 mg/ml</td></tr><tr><td>DNAse I</td><td>Roche&amp;nbsp;</td><td>11284932001</td><td>use at 40 &amp;micro;g/ml</td></tr><tr><td>Stiring magnets</td><td>FAUST</td><td></td><td>5 mm long-2 mm &amp;oslash;</td></tr><tr><td>Polystyrene round bottom tubes 5 ml</td><td>Falcon-BD Bioscience</td><td></td><td></td></tr><tr><td>Magnetic stirrer with heating function</td><td>IKA-RCT-standard</td><td>9720250</td><td></td></tr><tr><td>Petri dishes 100 mm, sterile</td><td>TPP</td><td>6223201</td><td></td></tr><tr><td>25 G needles</td><td>Terumo</td><td></td><td></td></tr><tr><td>anti mouse CD45 Ab</td><td>Biolegend</td><td></td><td>Clone 30-F11</td></tr><tr><td>anti mouse CD11c Ab</td><td>Biolegend</td><td></td><td>Clone N418</td></tr><tr><td>anti mouse Podoplanin Ab</td><td>Biolegend</td><td></td><td>Clone 8.1.1</td></tr><tr><td>anti mouse CD31 Ab</td><td>Biolegend</td><td></td><td>Clone MEC13.3</td></tr><tr><td>&lt;br/&gt; Eppendorf Xplorer plus, Multichannel</td><td>Eppendorf</td><td>4861 000.821/830</td><td>1.250 &amp;micro;l max. volume</td></tr><tr><td>anti mouse CD140a</td><td>Biolegend</td><td></td><td>Clone APA5</td></tr><tr><td>anti mouse CD80</td><td>Biolegend</td><td></td><td>Clone 16-10A1</td></tr><tr><td>anti mouse CD40</td><td>Biolegend</td><td></td><td>Clone 1C10</td></tr><tr><td>anti mouse I-Ab</td><td>Biolegend</td><td></td><td>Clone AF6-120.1</td></tr><tr><td>anti mouse CD274 (PD-L1)</td><td>Biolegend</td><td></td><td>Clone 10F.9G2</td></tr><tr><td>LIVE/DEAD Fixable Near-IR Dead Cell stain kit</td><td>Invitrogen</td><td>L10119</td><td></td></tr></tbody></table>

isolation of murine lymph node stromal cells

Secondary lymphoid organs including lymph nodes are composed of stromal cells that provide a structural environment for homeostasis, activation and differentiation of lymphocytes. Various stromal cell subsets have been identified by the expression of the adhesion molecule CD31 and glycoprotein podoplanin (gp38), T zone reticular cells or fibroblastic reticular cells, lymphatic endothelial cells, blood endothelial cells and FRC-like pericytes within the double negative cell population. For all populations different functions are described including, separation and lining of different compartments, attraction of and interaction with different cell types, filtration of the draining fluidics and contraction of the lymphatic vessels. In the last years, different groups have described an additional role of stromal cells in orchestrating and regulating cytotoxic T cell responses potentially dangerous for the host. 
Lymph nodes are complex structures with many different cell types and therefore require a appropriate procedure for isolation of the desired cell populations. Currently, protocols for the isolation of lymph node stromal cells rely on enzymatic digestion with varying incubation times; however, stromal cells and their surface molecules are sensitive to these enzymes, which results in loss of surface marker expression and cell death. Here a short enzymatic digestion protocol combined with automated mechanical disruption to obtain viable single cells suspension of lymph node stromal cells maintaining their surface molecule expression is proposed.

본 프로토콜로 인해 자동화 된 멀티 채널 피펫 기계 세분화에 짧은 소화 시간 (45 분 최대)로 링크 등., 2007 (6)에 의해 발표 된 수정 소화 프로토콜입니다. 또한, 상기 절차는, 더 표준화 상이한 림프절 기질 세포에 표면 마커의 열화를 최소화하고 동시에 하나 이상의 샘플의 처리를 허용한다. 의 콜라겐 IV와 콜라게나 D는 플레처 프로토콜 13에서 링크 프?...

Watch this Scientific Journal Video about Isolation of Murine Lymph Node Stromal Cells at JoVE.com

Isolation of Murine Lymph Node Stromal Cells

Isolation of lymph node stromal cells is a multistep procedure including enzymatic digestion and mechanical disaggregation to obtain fibroblastic reticular cells, lymphatic and blood endothelial cells. In the described procedure, a short digestion is combined with automated mechanical disaggregation to minimize surface marker degradation of viable lymph node stromal cells.

쥐과 림프절 기질 세포의 분리

Secondary lymphoid organs including lymph nodes are composed of stromal cells that provide a structural environment for homeostasis, activation and ...

isolation-of-murine-lymph-node-stromal-cells

Research

JoVE Journal

Immunology and Infection

31.2K 조회수.  University of Basel and University Hospital Basel. Isolation of lymph node stromal cells is a multistep procedure including enzymatic digestion and mechanical disaggregation to obtain fibroblastic reticular cells, lymphatic and blood endothelial cells. In the described procedure, a short digestion is combined with automated mechanical disaggregation to minimize surface marker degradation of viable lymph node stromal cells. 

비디오: Isolation of Murine Lymph Node Stromal Cells

Isolation of CD4+ T cells from Mouse Lymph Nodes Using Miltenyi MACS Purification

Isolation of cells from the primary source is a necessary step in many more complex protocols. Miltenyi offers kits to isolate cells from several organisms including humans, non-human primates, rat and, as we describe here, mice. Magnetic bead-based cell separation allows for either positive selection (or cell depletion) as well as negative selection. Here, we demonstrate negative selection of untouched or na ve CD4+ helper T cells. Using this standard protocol we typically purify cells that are &#8805; 96% pure CD4+/CD3+. This protocol is used in conjunction with the protocol Dissection and 2-Photon Imaging of Peripheral Lymph Nodes in Mice published in issue 7 of JoVE, for purification of T cells and other cell types to adoptively transfer for imaging purposes. Although we did not demonstrate FACS analysis in this protocol video, it is highly recommended to check the overall purity of isolated cells using the appropriate antibodies via FACS. In addition, we demonstrate the non-sterile method of T cell isolation. If sterile cells are needed for your particular end-user application, be sure to do all of the demonstrated procedures in the tissue culture hood under standard sterile conditions. Thank you for watching and good luck with your own experiments!

Isolation of lymphocytes using the Miltenyi MACs kit is a reliable way to purify cells from whole lymphoid tissue homogenates. Cells purified using the Miltenyi system are typically &#8805; 96% pure. Here, we demonstrate the steps taken to isolate CD4+ T cells, one of the many kits offered by Miltenyi.

CD4의 분리 + Miltenyi 맥을 정제를 사용하여 마우스 림프절에서 T 세포

Isolation of cells from the primary source is a necessary step in many more complex protocols. Miltenyi offers kits to isolate cells from several ...

연구

생물학

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

마우스 성기 요로 점막에서 림프구의 분리

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

면역학 및 감염병학

Isolation and Th17 Differentiation of Na&iuml;ve CD4 T Lymphocytes

Th17 cells are a distinct subset of T cells that have been found to produce interleukin 17 (IL-17), and differ in function from the other T cell subsets including Th1, Th2, and regulatory T cells. Th17 cells have emerged as a central culprit in overzealous inflammatory immune responses associated with many autoimmune disorders. In this method we purify T lymphocytes from the spleen and lymph nodes of C57BL/6 mice, and stimulate purified CD4+ T cells under control and Th17-inducing environments. The Th17-inducing environment includes stimulation in the presence of anti-CD3 and anti-CD28 antibodies, IL-6, and TGF-&#946;. After incubation for at least 72 hours and for up to five days at 37 &#176;C, cells are subsequently analyzed for the capability to produce IL-17 through flow cytometry, qPCR, and ELISAs. Th17 differentiated CD4+CD25- T cells can be utilized to further elucidate the role that Th17 cells play in the onset and progression of autoimmunity and host defense. Moreover, Th17 differentiation of CD4+CD25- lymphocytes from distinct murine knockout/disease models can contribute to our understanding of cell fate plasticity.

Isolation and Th17 Differentiation of Na&#239;ve CD4 T Lymphocytes

With effector functions distinct from other T cell subsets, Th17 cells have been centrally implicated in inflammatory autoimmunity. This in vitro Th17 differentiation protocol provides a means to determine whether na&#239;ve CD4+ T lymphocytes can differentiate into Th17 cells, and to further examine their role in autoimmunity and host response.

분리 및 나이브 CD4 T 림프구의 TH17 분화

Th17 cells are a distinct subset of T cells that have been found to produce interleukin 17 (IL-17), and differ in function from the other T cell subsets ...

Generation of Lymph Node-fat Pad Chimeras for the Study of Lymph Node Stromal Cell Origin

The stroma is a key component of the lymph node structure and function. However, little is known about its origin, exact cellular composition and the mechanisms governing its formation. Lymph nodes are always encapsulated in adipose tissue and we recently demonstrated the importance of this relation for the formation of lymph node stroma. Adipocyte precursor cells migrate into the lymph node during its development and upon engagement of the Lymphotoxin-b receptor switch off adipogenesis and differentiate into lymphoid stromal cells (B&#233;n&#233;zech&#160;et al.14). Based on the lymphoid stroma potential of adipose tissue, we present a method using a lymph node/fat pad chimera that allows the lineage tracing of lymph node stromal cell precursors. We show how to isolate newborn lymph nodes and EYFP+ embryonic adipose tissue and make a LN/ EYFP+ fat pad chimera. After transfer under the kidney capsule of a host mouse, the lymph node incorporates local adipose tissue precursor cells and finishes its formation. Progeny analysis of EYFP+ fat pad cells in the resulting lymph nodes can be performed by flow-cytometric analysis of enzymatically digested lymph nodes or by immunofluorescence analysis of lymph nodes cryosections. By using fat pads from different knockout mouse models, this method will provide an efficient way of analyzing the origin of the different lymph node stromal cell populations.

Generation of lymph node/fat pad chimeras for the study of lymph node stromal cell origin is described. The method involves the isolation of lymph nodes from newborn mice and embryonic fat pads, the generation of chimeric lymph node-fat pads, and their transfer under the kidney capsule of a host mouse.

The stroma is a key component of the lymph node structure and function. However, little is known about its origin, exact cellular composition and the ...

Isolation, Identification, and Purification of Murine Thymic Epithelial Cells

The thymus is a vital organ for T lymphocyte development. Of thymic stromal cells, thymic epithelial cells (TECs) are particularly crucial at multiple stages of T cell development: T cell commitment, positive selection and negative selection. However, the function of TECs in the thymus remains incompletely understood. In the article, we provide a method to isolate TEC subsets from fresh mouse thymus using a combination of mechanical disruption and enzymatic digestion. The method allows thymic stromal cells and thymocytes to be efficiently released from cell-cell and cell-extracellular matrix connections and to form a single-cell suspension. Using the isolated cells, multiparameter flow cytometry can be applied to identification and characterization of TECs and dendritic cells. Because TECs are a rare cell population in the thymus, we also describe an effective way to enrich and purify TECs by depleting thymocytes, the most abundant cell type in the thymus. Following the enrichment, cell sorting time can be decreased so that loss of cell viability can be minimized during purification of TECs. Purified cells are suitable for various downstream analyses like Real Time-PCR, Western blot and gene expression profiling. The protocol will promote research of TEC function and as well as the development of in vitro T cell reconstitution.

Here we describe an efficient method for isolation, identification, and purification of mouse thymic epithelial cells (TECs). The protocol can be utilized for studies of thymus function for normal T cell development, thymus dysfunction, and T cell reconstitution.

격리, 식별 및 쥐과 흉선 상피 세포의 정화

The thymus is a vital organ for T lymphocyte development. Of thymic stromal cells, thymic epithelial cells (TECs) are particularly crucial at multiple ...

Isolation and Flow Cytometric Characterization of Murine Small Intestinal Lymphocytes

The intestines &#8212; which contain the largest number of immune cells of any organ in the body &#8212; are constantly exposed to foreign antigens, both microbial and dietary. Given an increasing understanding that these luminal antigens help shape the immune response and that education of immune cells within the intestine is critical for a number of systemic diseases, there has been increased interest in characterizing the intestinal immune system. However, many published protocols are arduous and time-consuming. We present here a simplified protocol for the isolation of lymphocytes from the small-intestinal lamina propria, intraepithelial layer, and Peyer&#39;s patches that is rapid, reproducible, and does not require laborious Percoll gradients. Although the protocol focuses on the small intestine, it is also suitable for analysis of the colon. Moreover, we highlight some aspects that may need additional optimization depending on the specific scientific question. This approach results in the isolation of large numbers of viable lymphocytes that can subsequently be used for flow cytometric analysis or alternate means of characterization.

There is growing interest in the quantitative characterization of intestinal lymphocytes owing to increasing recognition that these cells play a critical role in a variety of intestinal and systemic diseases. In this protocol, we describe how to isolate single cell populations from different small-intestinal compartments for subsequent flow cytometric characterization.

쥐 소장 림프구의 분리 및 유세포 특성

The intestines &#8212; which contain the largest number of immune cells of any organ in the body &#8212; are constantly exposed to foreign antigens, both ...

Isolation and Activation of Murine Lymphocytes

B and T cells, with their extremely diverse antigen-receptor repertoires, have the ability to mount specific immune responses against almost any invading pathogen1,2. Understandably, such intricate abilities are controlled by a large number of molecules involved in various cellular processes to ensure timely and spatially regulated immune responses3. Here, we describe experimental procedures that allow rapid isolation of highly purified murine lymphocytes using magnetic cell sorting technology. The resulting purified lymphocytes can then be subjected to various in vitro or in vivo functional assays, such as the determination of lymphocyte signaling capacity upon stimulation by immunoblotting4 and the investigation of proliferative abilities by 3H-thymidine incorporation or carboxyfluorescein diacetate succinimidyl ester (CFSE) labeling5-7. In addition to comparing the functional capacities of control and genetically modified lymphocytes, we can also determine the T cell stimulatory capacity of antigen-presenting cells (APCs) in vivo, as shown in our representative results using transplanted CFSE-labeled OT-I T cells.

Lymphocytes are the major players in adaptive immune responses. Here, we present a lymphocyte purification protocol to determine the physiological functions of the desired molecules in lymphocyte activation in vitro and in vivo. The described experimental procedures are suitable for comparing functional capacities between control and genetically modified lymphocytes.

분리 및 쥐 림프구의 활성화

B and T cells, with their extremely diverse antigen-receptor repertoires, have the ability to mount specific immune responses against almost any invading ...

Isolating Lymphocytes from the Mouse Small Intestinal Immune System

The intestinal immune system plays an essential role in maintaining the barrier function of the gastrointestinal tract by generating tolerant responses to dietary antigens and commensal bacteria while mounting effective immune responses to enteropathogenic microbes. In addition, it has become clear that local intestinal immunity has a profound impact on distant and systemic immunity. Therefore, it is important to study how an intestinal immune response is induced and what the immunologic outcome of the response is. Here, a detailed protocol is described for the isolation of lymphocytes from small intestine inductive sites like the gut-associated lymphoid tissue Peyer&#39;s patches and the draining mesenteric lymph nodes and effector sites like the lamina propria and the intestinal epithelium. This technique ensures isolation of a large numbers of lymphocytes from small intestinal tissues with optimal purity and viability and minimal cross compartmental contamination within acceptable time constraints. The technical capability to isolate lymphocytes and other immune cells from intestinal tissues enables the understanding of immune responses to gastrointestinal infections, cancers, and inflammatory diseases.

Here we describe a detailed protocol for the isolation of lymphocytes from the inductive sites including the gut-associated lymphoid tissue Peyer&#39;s patches and the draining mesenteric lymph nodes, and the effector sites including the lamina propria and the intestinal epithelium of the small intestinal immune system.

마우스 작은 장의 면역 시스템에서 세포를 분리

The intestinal immune system plays an essential role in maintaining the barrier function of the gastrointestinal tract by generating tolerant responses to ...

흉선과 골수에서 기질 세포 분리 최적화

Stromal Cell Isolation From Hematopoietic Organs

Single-cell sequencing has enabled the mapping of heterogeneous cell populations in the stroma of hematopoietic organs. These methodologies provide a lens through which to study previously unresolved heterogeneity at steady state, as well as changes in cell type representation induced by extrinsic stresses or during aging. Here, we present step-wise protocols for the isolation of high-quality stromal cell populations from murine and human thymus, as well as murine bone and bone marrow. Cells isolated through these protocols are suitable for generating high-quality single-cell multiomics datasets. The impacts of sample digestion, hematopoietic lineage depletion, FACS analysis/sorting, and how these factors influence compatibility with single-cell sequencing are discussed here. With examples of FACS profiles indicating successful and inefficient dissociation and downstream stromal cell yields in post-sequencing analysis, recognizable pointers for users are provided. Considering the specific requirements of stromal cells is crucial for acquiring high-quality and reproducible results that can advance knowledge in the field.

저자 스포트라이트: 단일 세포 염기서열 분석을 위한 기질 세포 분리를 사용한 조혈 연구 발전

Here we present protocols that enable isolation of stromal cells from murine bone, bone marrow, thymus and human thymic tissue compatible with single-cell multiomics.

조혈 장기에서 기질 세포 분리(Stromal Cell Isolation from Hematopoietic Organs)

Single-cell sequencing has enabled the mapping of heterogeneous cell populations in the stroma of hematopoietic organs. These methodologies provide a lens ...

쥐과 림프절 기질 세포의 분리

요약

더 많은 비디오 탐색

CD4의 분리 + Miltenyi 맥을 정제를 사용하여 마우스 림프절에서 T 세포

마우스 성기 요로 점막에서 림프구의 분리

분리 및 나이브 CD4 T 림프구의 TH17 분화

Generation of Lymph Node-fat Pad Chimeras for the Study of Lymph Node Stromal Cell Origin

격리, 식별 및 쥐과 흉선 상피 세포의 정화

쥐 소장 림프구의 분리 및 유세포 특성

분리 및 쥐 림프구의 활성화

마우스 작은 장의 면역 시스템에서 세포를 분리

조혈 장기에서 기질 세포 분리(Stromal Cell Isolation from Hematopoietic Organs)

조혈 장기에서 기질 세포 분리(Stromal Cell Isolation from Hematopoietic Organs)