このコンテンツを視聴するには、JoVE 購読が必要です。 サインイン又は無料トライアルを申し込む。
Method Article
この原稿は、表現型とフローサイトメトリーによるラット腎臓からの常駐マクロファージの定量分析のための詳細なプロトコルを記述しています。得られた染色された細胞はまた、このように実験モデルで得られた情報を増加させる、細胞選別、遺伝子発現分析または機能的研究を含む他の用途に使用することができます。
There is increasing evidence suggesting the important role of inflammation and, subsequently, macrophages in the development and progression of renal disease. Macrophages are heterogeneous cells that have been implicated in kidney injury. Macrophages may be classified into two different phenotypes: classically activated macrophages (M1 macrophages), that release pro-inflammatory cytokines and promote fibrosis; and alternatively activated macrophages (M2 macrophages) that are associated with immunoregulatory and tissue-remodeling functions. These macrophage phenotypes need to be discriminated and analyzed to determine their contribution to renal injury. However, there are scarce studies reporting consistent phenotypic and functional information about macrophage subtypes in inflammatory renal disease models, especially in rats. This fact may be related to the limited macrophage markers used in rats, contrary to mice. Therefore, novel strategies are necessary to quantify and characterize the renal content of these infiltrating cells in a reliable way. This manuscript details a protocol for kidney digestion and further phenotypic and quantitative analysis of macrophages from rat kidneys by flow cytometry. Briefly, kidneys were incubated with collagenase and total macrophages were identified according to the dual presence of CD45 (leukocytes common antigen) and CD68 (PAN macrophage marker) in live cells.This was followed by surface staining of CD86 (M1 marker) and CD163 (M2 marker). Rat peritoneal macrophages were used as positive control for macrophage marker detection by flow cytometry. Our protocol resulted in low cellular mortality and allowed characterization of different intracellular and surface protein markers, thus limiting the loss of cellular integrity observed in other protocols. Moreover, this procedure allows the use of macrophages for further techniques, including cell sorting and mRNA or protein expression studies, among others.
Renal disease is a global health problem, with increased prevalence, and associated with elevated morbidity and mortality1. One of the most important mechanisms involved in the progression and development of renal injury is inflammation, mainly triggered by macrophages. Macrophages play a pivotal role in many inflammatory diseases, including renal disorders2. Thus, an elevated presence of infiltrating macrophages has been reported in biopsies from patients with acute kidney injury (AKI) or chronic kidney disease (CKD)3,4. Recent studies suggest that the long-term outcome of renal disease could be controlled by macrophages5,6....
Access restricted. Please log in or start a trial to view this content.
このプロトコルは、指令欧州議会の63分の2010 / EUと国家ガイドライン2013分の53以下のローカル施設内動物管理使用委員会によって承認されました。
試薬およびソリューションの作製
2.腎臓灌流および抽出
Access restricted. Please log in or start a trial to view this content.
私たちは、腎臓に浸潤マクロファージの存在の増加に関連した腎障害の炎症実験モデルにおけるマクロファージの不均一性を分析しました。以前に12報告されているように、このモデルでは、腎臓の損傷は、Wistarラットでの3週間の飲料水中アルドステロン(1ミリグラム-1キロ-1日)に加えて、塩(塩化ナトリウム1%)の投与によって誘発しま?.......
Access restricted. Please log in or start a trial to view this content.
マクロファージは、腎疾患を含む種々の炎症性疾患において重要な役割を果たしている異種の細胞です。糸球体腎炎、糖尿病性腎症や腎がん14-16で報告されているように、各マクロファージ亜集団は、腎障害の開発に異なる方法で寄与するため、腎疾患におけるマクロファージのサブセットの特性評価への関心が高まっています。急性腎損傷の初期段階では、M1マクロファージの優位?.......
Access restricted. Please log in or start a trial to view this content.
著者らは、開示することは何もありません。
This work was supported by grants from FIS/FEDER (Programa Miguel Servet: CP10/00479, PI13/00802 and PI14/00883), Spanish Society of Atherosclerosis, Spanish Society of Nephrology and Fundaciòn Renal Iñigo Alvarez de Toledo (FRIAT) to Juan Antonio Moreno. FIS/FEDER funds PI14/00386 and Instituto Reina Sofìa de Investigaciòn Nefrològica to Jesús Egido. Fundaciòn Conchita Rabago to Melania Guerrero Hue. Fundaciòn Renal Iñigo Alvarez de Toledo (FRIAT) to Alfonso Rubio Navarro.
....Access restricted. Please log in or start a trial to view this content.
Name | Company | Catalog Number | Comments |
Laminar flow hood | Faster | Or equivalent equipment | |
Centrifuge | Hettich | Or equivalent equipment | |
Flow cytometer (FACSAria) | BD Biosciences | ||
Fetal bovine serum | BioWest | S1820-500 | |
PBS 10x | LONZA | BE17-515Q | |
Collagenase | Sigma-Aldrich | 12/1/9001 | |
ACK Lysing Buffer | Thermo Fisher Scientific | A10492-01 | |
Flow cytometry strainers | BD Biosciences | 340626 | |
Falcon cell strainers | Thermo Fisher Scientific | 352340 | |
Flow cytometry tubes | Falcon | 352052 | 5 ml Polystyrene Round-Bottom Tube |
Centrifuge tubes | Corning centristar | 430791 | |
Water bath | Memmert GmbH + Co. KG | WNE 7 | 37 °C |
Fixation/Permeabilization Solution or Permeabilization/Wash Buffer | BD Biosciences | 554714 | |
Rompum (Xylazine) | Bayer | Or equivalent | |
Ketalar (Ketamine) | Pfizer | Or equivalent | |
Hanks’ balanced salt solution | Sigma-Aldrich | H8264-500ML | |
Saline solution | Braun | 622415 | |
Anti-CD45 (clone:OX-1) APC-Cy7 | Biolegend | 202216 | Diluted 1:100 |
Anti-CD68 (clone: ED1) FITC | Bio-RAD | MCA341F | Diluted 35:1,000 |
anti-CD86 (clone: 24F) PE | Biolegend | 200307 | Diluted 35:1,000 |
anti-CD163 (clone: ED2) Alexa Fluor 647 | Bio-RAD | MCA342R | Diluted 4:100 |
Live/dead stain | Molecular Probes | L34955 | Diluted 3:1,000 |
Access restricted. Please log in or start a trial to view this content.
このJoVE論文のテキスト又は図を再利用するための許可を申請します
許可を申請This article has been published
Video Coming Soon
Copyright © 2023 MyJoVE Corporation. All rights reserved