Abstract:
:Interleukin (IL)-23 plays a predominant role in the development of autoimmune diseases by inducing IL-17-producing helper T (Th17) cells. The receptor for IL-23 consists of a heterodimer composed of the IL-12 receptor beta1 (IL-12Rbeta1) and the IL-23 receptor (IL-23R), which is mainly expressed on Th17 cells. A recent study showed that macrophages express IL-23R mRNA and can be distinguished from microglia by IL-23R expression. However, in this study, we show by RT-PCR and immunocytochemistry that microglia express IL-23R and IL-12Rbeta1 mRNA and protein, respectively. Additionally, microglia expressed a functional receptor for IL-23, as IL-23 enhanced the Interferon (IFN)-gamma-induced signal transducer and activator of transcription (STAT)1 phosphorylation and chemokine production. Thus, IL-23R expression does not discriminate peripheral macrophages from microglia. Moreover, since microglia produce IL-23, it may function in an autocrine manner to recruit inflammatory cells by inducing chemokine production.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Sonobe Y,Liang J,Jin S,Zhang G,Takeuchi H,Mizuno T,Suzumura Adoi
10.1016/j.bbrc.2008.03.059subject
Has Abstractpub_date
2008-05-23 00:00:00pages
129-33issue
1eissn
0006-291Xissn
1090-2104pii
S0006-291X(08)00509-3journal_volume
370pub_type
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