Analysis of Efferocytosis of Apoptotic Thymocytes by Peritoneal Macrophages
Published: November 30, 2023
Abstract
Source: Zhen, Y. et al., Experimental Analysis of Apoptotic Thymocyte Engulfment by Macrophages. J. Vis. Exp. (2019)
This video demonstrates a procedure for analyzing peritoneal macrophage-mediated efferocytosis of apoptotic mouse thymocytes by fluorescence microscopy.
Protocol
All procedures involving animal models have been reviewed by the local institutional animal care committee and the JoVE veterinary review board. 1. Preparation of CFSE-labeled apoptotic thymocytes Euthanize two naïve C57/B6 mice by CO2 inhalation for 10 min and dissect to open the chest cavity, remove (pull out) the thymus with curved fine-tip forceps into tissue culture petri dish containing 10 mL of RPMI1640 medium. Obta…
Representative Results
Figure 1. Percentage of phagocytosis of apoptotic thymocytes by peritoneal macrophages. Apoptotic thymocytes were induced by incubating with 1 μM of staurosporine for 4 h and added into macrophage culture at a ratio as indicated in the figure panels: (A) 1:0; (B) 1:1; (C) 1:2; (D) 1:4; (E) 1:6; (F) 1:8; (G) 1:10; (H) 1:12. Data were acquired with a flow cytometer. The percen…
Divulgaciones
The authors have nothing to disclose.
Materials
| Ack lysing buffer | GIBCO | A10492 | |
| Annexin V/7-AAD | BD Pharmingen | 559763 | |
| Anti-Mer antibody | R&D Systems | BAF591 | |
| CD11b-PE (clone M1/70) | BD Pharmingen | 553311 | |
| CFSE | Invitrogen | C1157 | |
| DMSO | Sigma-Aldrich | D-2650 | |
| EDTA (0.5 mM) | GIBCO | 15575-020 | |
| FACS tubes | BD Biosciences | 352017 | |
| Horse Serum (Heat-inactivated) | Invitrogen | 26050088 | |
| PBS, 1x | Corning | 21040CV | |
| RPMI-1640 | Corning | 10040CV | |
| RXDX-106 | Selleck Chemicals | CEP-40783 | |
| Staurosprine (100mg) | Fisher Scientific | BP2541-100 | Add 214.3 ml of DMSO into 100mg to make 1mM stocking solution |
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Analysis of Efferocytosis of Apoptotic Thymocytes by Peritoneal Macrophages. J. Vis. Exp. (Pending Publication), e21786, doi: (2023).