Fluorescence Based Transwell Macrophage Attraction Assay: An In Vitro Method to Study Tumor-Macrophage Interaction Through Chemical-Induced Chemotaxis
Published: April 30, 2023
Abstract
Source: An, Z. et al. In Vitro Assay to Study Tumor-macrophage Interaction. J. Vis. Exp. (2019)
In this video, we study tumor-macrophage interaction using fluorescence-based transwell macrophage interaction assay. The assay involves the analysis of the migration of macrophages through chemical-induced chemotaxis.
Protocol
1. In Vitro Macrophage Attraction Assay Preparation of Conditioned Media Warm up the tumor cell maintenance medium at a 37 °C water bath for 20 min. Spray the tissue culture hood surface with 70% ethanol and wipe off 70% ethanol on the surface with paper towels. Take the cell detachment solution from the fridge. Spray the bottles of the medium and the cell detachment solution with 70% ethanol, wipe off 70% ethanol on the surface with p…
開示
The authors have nothing to disclose.
Materials
| 10 mL serological pipettes | Olympus plastics | 12-104 | |
| 15 mL sterile centrifuge tubes | Olympus plastics | 28-103 | |
| 1 mL pipette tip | ART molecular bioproducts | 2779-RI | |
| 2 mL aspirating pipet | Falcon | 357558 | |
| 24-well plate | Millipore | ECM507 | Part of ECM507, or can be purchased separately |
| 4x lysis buffer | Millipore | ECM507 | Part of ECM507, or can be purchased separately |
| 5 μm Transwell insert | Millipore | ECM507 | Part of ECM507, or can be purchased separately |
| Accutase | Innovative cell technologies | AT-104 | |
| B27 | Gibco | 12587-010 | |
| CyQuant Dye | Millipore | ECM507 | Part of ECM507, or can be purchased separately |
| DMEM | Gibco | 11965-092 | |
| DMEM:F12 | Gibco | 10565-018 | |
| EGF | Peprotech | AF-100-15 | |
| FBS | Gibco | 26140 | |
| FGF | Peprotech | 100-18B | |
| IMDM | Gibco | 12440-053 | |
| PBS | Gibco | 14190-144 | |
| Pen Strep | Gibco | 15140-122 | |
| Trypan blue | Biorad | 1450021 |
