Analysis of IL-4/STAT6 Signaling in Macrophages
2019
: Activation of signal transducer and activator of transcription 6 (STAT6) is a key signaling pathway in macrophage function, and is required for the so-called alternative (M2) activation of macrophages. Interleukin (IL)-4 and IL-13 are important M2 polarizing cytokines that act through STAT6 by inducing its phosphorylation and promoting transcription of STAT6-responsive genes. Inactivation of STAT6 signaling in macrophages has not been fully explored; however, a recent model suggests that inactivation of STAT6 signaling can occur via ubiquitination and proteasomal degradation. In this chapter, we describe a combination of techniques that can be used to study the activation/inactivation of STAT6 signaling in macrophages.
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