Human Monocyte STING Activation Flow Cytometry Panel #69210
Product Information
Protocol
Product Description
CD45 is a pan leukocyte marker. Monocytes and dendritic cells (DCs) are identified by co-expression of CD11b and HLA-DR. Monocytes can be distinguished from DCs by expression of CD14. Classical monocytes are CD14+CD16-, intermediate monocytes are CD14+CD16+, and nonclassical monocytes are CD14dimCD16+. DCs are CD14-CD16-. STING mediates the innate immune response to DNA. STING is activated upon binding of the second messenger cGAMP, which is produced by cGAS. Binding of cGAMP to cGAS triggers conformational changes in STING, trafficking of STING from the ER to the Golgi, and recruitment of TBK1, which phosphorylates STING at Ser366.
Product Usage Information
For individual product dilutions, refer to panel product datasheet or individual product pages.
Gating strategy for observing STING phosphorylation in monocyte populations: If a fixable viability dye was used, first gate on viable cells. Next, gate on CD45+ immune cells. Viewing the CD45+ population, gate on singlets using appropriate scatter parameters, such as FSC-A vs. FSC-H. Observe CD11b vs. HLA-DR expression and gate on CD11b+HLA-DR+ monocytes and DCs. Observe CD14 vs. CD16 on the gated population. Classical monocytes are CD14+CD16-, intermediate monocytes are CD14+CD16+, nonclassical monocytes are CD14dimCD16+, and DCs are CD14-CD16-. Monocytic MDSCs are CD11b+HLA-DR-CD14+ and can also be observed. Observe phospho-STING (Ser366) in populations of interest.
Storage
All components in this kit are stable in accordance with the date printed on the outer packaging label when stored at the recommended temperature. Please refer to product labels, datasheets, or web pages for specific “Best By” dates for each individual component.
Specificity / Sensitivity
Species Reactivity:
Source / Purification
Limited Uses
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