Abstract:
:Interleukin-12 family cytokines have emerged as critical regulators of immunity with some members (IL-12, IL-23) associated with disease pathogenesis while others (IL-27, IL-35) mitigate autoimmune diseases. Each IL-12 family member is comprised of an α and a β chain, and chain-sharing is a key feature. Although four bona fide members have thus far been described, promiscuous chain-pairing between alpha (IL-23p19, IL-27p28, IL-12/IL-35p35) and beta (IL-12/IL-23p40, IL-27/IL-35Ebi3) subunits, predicts six possible heterodimeric IL-12 family cytokines. Here, we describe a new IL-12 member composed of IL-23p19 and Ebi3 heterodimer (IL-39) that is secreted by LPS-stimulated B cells and GL7(+) activated B cells of lupus-like mice. We further show that IL-39 mediates inflammatory responses through activation of STAT1/STAT3 in lupus-like mice. Taken together, our results show that IL-39 might contribute to immunopathogenic mechanisms of systemic lupus erythematosus, and could be used as a possible target for its treatment.
journal_name
Eur J Immunoljournal_title
European journal of immunologyauthors
Wang X,Wei Y,Xiao H,Liu X,Zhang Y,Han G,Chen G,Hou C,Ma N,Shen B,Li Y,Egwuagu CE,Wang Rdoi
10.1002/eji.201546095subject
Has Abstractpub_date
2016-06-01 00:00:00pages
1343-50issue
6eissn
0014-2980issn
1521-4141journal_volume
46pub_type
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