マウスの腸からの樹状細胞およびマクロファージの単離とキャラクタリゼーション
Summary
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.
Abstract
腸内に付随して残りの侵襲的な病原体1,2に向かって炎症反応をマウントする態勢を整えながら、共生植物や食物抗原に対する寛容の促進に関与している自然免疫と適応免疫細胞のユニークな集団を常駐します。抗原提示細胞、特に樹状細胞やマクロファージは、感知し、適切に細菌3月14日に応答する能力を介して腸管免疫恒常性を維持する上で重要な役割を果たしている。腸の樹状細胞とマクロファージの効率的な分離は、これらの細胞の表現型と機能を特徴づける重要なステップです。樹状細胞とマクロファージを含む腸管免疫細胞を、単離の多くの効果的な方法は6,10,15-24を説明してきたが、多くは否定的な細胞表面抗原の発現、細胞の生存、および/ または細胞収量に影響を与える可能性がある長い消化時間に依存しています。ここでは、詳細viabl大量の迅速分離するための方法論をE、腸の樹状細胞やマクロファージ。腸の樹状細胞とマクロファージの表現型の特性が直接マルチカラーフローサイトメトリー分析のために特定の蛍光標識モノクローナル抗体を用いて分離された腸の細胞を染色することにより行われる。さらに、高純度のDCおよびマクロファージの集団は細胞選別が続くとCD11b CD11cは磁気活性化細胞選別ビーズを利用した機能性研究のために隔離されています。
Protocol
1。腸上皮細胞の解離および解離試薬や機器の調製： 室温へのCa 2 + / Mg 2 +のフリーのPBS（CMF PBS）暖かい。 5％FBS（CMF HBSS / FBS）と室温に2mMのEDTAと暖かいのCa 2 + / Mg 2 +のフリーのHBSS。 37暖かいオービタルシェーカー℃、 注：ステップ1.1から1.7までは、細胞死の程度を最小限に抑?…
Discussion
図3。細胞収率と表面抗原の発現を最適化するための重要な要素。細胞収率と表面抗原の発現を直接組織消化の期間に影響される、コラゲナーゼの固有の特性、ミンチ組織の程度、炎症の有無、これは、組織の整合性と細胞性に影響を与える可能性があります。不十分な組織の消化は、分析のための細胞の不足につながるかもしれ?…
Declarações
The authors have nothing to disclose.
Acknowledgements
We thank Aaron Rae (Emory University Department of Pediatrics and Children’s Healthcare of Atlanta Flow Core) for cell sorting. This work was supported by NIH grant AA01787001, a Career Development Award from the Crohn’s and Colitis Foundation of America, and an Emory-Egleston Children’s Research Center seed grant to T.L.D.
Materials
| Name of the Reagent | Company | Catalogue number | Comments |
| 1X PBS, Ca2+– and Mg2+-free | |||
| Hank’s balanced salt solution (HBSS) with phenol red | Fisher Scientific | SH3001603 | |
| Sodium bicarbonate | Sigma | S6014 | |
| 1M HEPES in 0.85% NaCl | Lonza | 17-737E | |
| Fetal bovine serum (FBS) | Atlanta biologicals | S11150H | Heat-inactivated |
| 0.5M EDTA (pH 8.0) | Cellgro | 46-034-CI | |
| Collagenase type VIII | Sigma | C2139 | |
| DNase I | Roche | 14785000 | Stock solution: 100mg/ml |
| LIVE/DEAD Fixable Aqua Dead Cell Stain Kit for 405 nm excitation | Invitrogen | L34957 | Use at 1:1000 |
| CD45-PerCP mAb (30F11) | BD | 557235 | Use at 1:100 |
| CD103-PE mAb (M290) | BD | 557495 | Use at 1:100 |
| FcγRIII/II mAb (2.4G2) | BD | 553141 | Use at 1:200 |
| CD11c-APC mAb (N418) | eBioscience | 17-0114-82 | Use at 1:100 |
| MHC-II (I-Ab)-Alexa Fluor 700 mAb | eBioscience | 56-5321-82 | Use at 1:100 |
| CD11b-eFluor 450 mAb (M1/70) | eBioscience | 48-0112-82 | Use at 1:200 |
| F4/80-PE-Cy7 mAb (BM8) | eBioscience | 25-4801-82 | |
| CD11b microbeads | Miltenyi Biotec | 130-049-601 | |
| CD11c microbeads | Miltenyi Biotec | 130-052-001 | |
| 50 mL conical tubes | BD Falcon | 352098 | |
| Single mesh wire strainer | Chefmate | ||
| Small weigh boat | Fisher Scientific | 08-732-116 | |
| 100 μm cell strainer | BD Falcon | 352360 | |
| 40 μm cell strainer | BD Falcon | 352340 | |
| 5 mL polystyrene round-bottom tubes | BD Falcon | 352235 | Use at 1:100 |
| MaxQ 4450 benchtop orbital shaker | Thermo Scientific | ||
| LS MACS column | Miltenyi Biotec | 130-042-401 | |
| LSR II | BD | ||
| FACSAria II | BD |
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Tags
IsolationCharacterizationDendritic CellsMacrophagesMouse IntestineInnate Immune CellsAdaptive Immune CellsToleranceCommensal FloraFood AntigensInflammatory ResponsesAntigen Presenting CellsDCsMacrophagesIntestinal Immune HomeostasisMicrobiotaIsolation MethodsDigestion TimesCell Surface Antigen ExpressionCell ViabilityCell YieldPhenotypic CharacterizationFluorescence-labeled Monoclonal AntibodiesFlow Cytometric AnalysisFunctional StudiesCD11cCD11b Magnetic-activated Cell Sorting Beads
Citar este artigo
Geem, D., Medina-Contreras, O., Kim, W., Huang, C. S., Denning, T. L. Isolation and Characterization of Dendritic Cells and Macrophages from the Mouse Intestine. J. Vis. Exp. (63), e4040, doi:10.3791/4040 (2012).