Protocols

Phenotyping of Human Monocytes/Macrophages

Summary

To provide a phenotypic assay for human monocytes/macrophages.

Author: J.E. Colligan et al, Translator: Xuitao Cao et al. This experiment is from the "Comprehensive Immunology Laboratory Guide".

Operation method

Phenotyping of Human Monocytes/Macrophages

Move

basic program Materials

Single nucleated cells (heparin-anticoagulated blood or heparin-anticoagulated bone marrow) or peripheral blood single nucleated cells (cell 8.1) or mononuclear/macrophage cells (cell 8.5, negative sorting recommended) to be tested

PBS

PBS/Heparin: PBS with 0.1% (V/V) Heparin

Blocking IgG at 3 mg/ml (e.g., normal mouse IgG, Caltag)

Fluorescein-labeled monoclonal antibody (Table 6. 3. 2)

E M A (Ethidium monoazide) solution

ACK lysate (freshly prepared, should be stored at room temperature for < 12 h)

7 2 % (m /V) Formaldehyde

12m m X 75m m test tube

15 ml cone-bottomed plastic centrifuge tubes (Falcon)

Low power incandescent lamps (e.g. 40W incandescent)

Sorvall R T 6000B Centrifuge and Rotor

When using heparinized anticoagulated blood or anticoagulated bone marrow: add approximately IOml of anticoagulated blood or 1-3ml of anticoagulated bone marrow to a 15ml cone-bottomed plastic centrifuge tube and centrifuge at 4°C for 3 minutes at 1500 g. Discard the blood plasma, add 100ml of PBS/heparin, and tightly cap the tube.
颠倒离心管将细胞混匀。细胞离心后,用 15ml P B S 再洗涤一次。用 P B S 重悬细 胞 ,调整浓度至2X 107个细胞/m l 。 lb. 使 用 P B M C 或单核/巨噬细胞时:用 P B S 调整细胞浓度至2 X 107个细胞/m l 。 2 . 准 备 7 只 12m m X 75m m 试管,将 试 管 1〜7 编号,每 管 加 入 50|ul细 胞 悬 液 (I X l O 6 个细胞)。 3 . 加 入 年 1浓 度 为 3m g /m l 的正常小鼠IgG, 4°C (置冰上)孵 育 lOmin。 4 . 按 表 6. 3. 3 所示,在 1〜5 号试管中加入适量的一抗。将 1〜6 号试管冰浴15min。 5 号管含同型对照Ig,为非特异结合对照管。 6 号管为细胞自发焚光对照,用于 调 定 光 电 倍 增 管 电 压 (photomultiplier, P M T ) ,这一点对巨嗤细胞的检测尤为 重要。 5 . 在 7 号管中加入5M1 E M A 溶液,混匀。将 试 管 放 在 白 炽 灯 (如 40W 白炽灯) 18cm 远处,室温静置l〇min。 6 . 若 样 品 含 红 细 胞 (如 新 鲜 骨 髓 或 脾 脏 ),加 入 3ml A C K 裂 解 液 。否 则 ,加人 3ml P B S 0 7 . 盖紧试管盖,颠倒试管1〜2 次 ,将细胞混勻后,室温静置3min。 8. 4°C , 150吆 离 心 3min。倒掉上清,试管直立后,用手指轻轻弹松管底细胞沉淀。 9 . 加 入 3ml P B S 洗涤细胞,方法同步骤7 和 8。 IOa. 直接检测时:加 入 200julPBS重悬细胞, 4°C 避 光 待 检 (可保存< 4 h)。 10b. 固定后检测时:加 入 100jul2 % 甲醛,混匀,加盖, 4°C 避光固定I h 后待检。 甲醛会改变细胞的光散射值。 1 1 . 用流式细胞仪进行检测,然 后 用 FACScan分析结果


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Categories: Protocols
Explore topics: Immunological experiments

Da — when not otherwise indicated, molecular weight units are daltons.   Mw — weight-average molecular weight.   Mn — number-average molecular weight.

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Cite this article

Aladdin Scientific. "Phenotyping of Human Monocytes/Macrophages" Aladdin Knowledge Base, updated Dec 24, 2024. https://www.aladdinsci.com/us_en/faqs/phenotyping-of-human-monocytes-macrophag-en.html
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