脾臟是造血、紅細胞清除和免疫功能的場所，因此是細胞質控的良好來源。它可以過濾細胞碎片、病原體和不規則細胞。它是紅細胞和白細胞以及幾種免疫細胞亞型的來源，包括粒細胞、單核細胞、巨噬細胞、樹突狀細胞 （DC）、NK 細胞、T 細胞和 B 細胞。
小鼠脾臟細胞分離Protocol Mouse Spleen Cell Isolation Protocol
Perform steps 1–7 at room temperature and steps 8–12 on ice with cold buffers.
1. Obtain fresh whole mouse spleen. |
2. Place mouse spleen into petri dish with 5 mL HBSS (Hank’s balanced salt solution) buffer. |
3. Carefully mince the spleen into small pieces (~0.2 cm2) with a razor or scalpel blade. |
4. For preparation of myeloid cells (continue to step 5 for crude preparation): Incubate the excised spleen pieces for 20-30 min at 37°C with 5 mL of HBSS solution containing Collagenase IV (100 U/mL), DNase I (20 U/mL), and 1% FBS. |
6. Place cell strainer over a 50 mL conical tube. |
7. With a disposable transfer pipette, transfer the excised spleen into the cell strainer. |
8. With the plunger end of a syringe, mash or press the spleen through the strainer. Add 5–10 mL PBS if necessary. |
9. Wash the cells through the strainer with excess PBS. Repeat step 5 and 6, if needed. |
10. Centrifuge the cells at 400–600 x g for 5 minutes at 4 °C; discard the supernatant. |
11. Resuspend the cell pellet in 2–5 mL of cold 1x RBC Lysis buffer. |
12. Incubate the suspension for 5 minutes on ice. |
13. Wash the cell suspension with 10–20 mL cold PBS. |
14. Centrifuge the cells at 400–600 x g for 5 minutes at 4 °C; discard the supernatant. |
15. Resuspend the cell pellet in PBS at 2–3 x 106 cells/mL. |
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