Title : Hydroxychloroquine is associated with impaired interferon-alpha and tumor necrosis factor-alpha production by plasmacytoid dendritic cells in systemic lupus erythematosus.

Pub. Date : 2012 Jun 27

PMID : 22734582






8 Functional Relationships(s)
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1 METHODS: Peripheral blood mononuclear cells (PBMCs) from SLE subjects treated or not with HCQ and from healthy controls were stimulated with the TLR-9 agonist, CpG oligodeoxynucleotides (CpG-A ODN)-2216, and the TLR-7 agonist, imiquimod. Hydroxychloroquine toll like receptor 9 Homo sapiens
2 In almost all cases, these subjects were being treated with HCQ (HCQ vs. no HCQ: impaired TLR-9/IFN-alpha, P = 0.0003; impaired TLR-7/IFN-alpha, P = 0.07; impaired TLR-9/TNF-alpha, P < 0.009; impaired TLR-7/TNF-alpha, P < 0.01). Hydroxychloroquine toll like receptor 9 Homo sapiens
3 In almost all cases, these subjects were being treated with HCQ (HCQ vs. no HCQ: impaired TLR-9/IFN-alpha, P = 0.0003; impaired TLR-7/IFN-alpha, P = 0.07; impaired TLR-9/TNF-alpha, P < 0.009; impaired TLR-7/TNF-alpha, P < 0.01). Hydroxychloroquine toll like receptor 9 Homo sapiens
4 In almost all cases, these subjects were being treated with HCQ (HCQ vs. no HCQ: impaired TLR-9/IFN-alpha, P = 0.0003; impaired TLR-7/IFN-alpha, P = 0.07; impaired TLR-9/TNF-alpha, P < 0.009; impaired TLR-7/TNF-alpha, P < 0.01). Hydroxychloroquine toll like receptor 9 Homo sapiens
5 In almost all cases, these subjects were being treated with HCQ (HCQ vs. no HCQ: impaired TLR-9/IFN-alpha, P = 0.0003; impaired TLR-7/IFN-alpha, P = 0.07; impaired TLR-9/TNF-alpha, P < 0.009; impaired TLR-7/TNF-alpha, P < 0.01). Hydroxychloroquine toll like receptor 9 Homo sapiens
6 In almost all cases, these subjects were being treated with HCQ (HCQ vs. no HCQ: impaired TLR-9/IFN-alpha, P = 0.0003; impaired TLR-7/IFN-alpha, P = 0.07; impaired TLR-9/TNF-alpha, P < 0.009; impaired TLR-7/TNF-alpha, P < 0.01). Hydroxychloroquine toll like receptor 9 Homo sapiens
7 In almost all cases, these subjects were being treated with HCQ (HCQ vs. no HCQ: impaired TLR-9/IFN-alpha, P = 0.0003; impaired TLR-7/IFN-alpha, P = 0.07; impaired TLR-9/TNF-alpha, P < 0.009; impaired TLR-7/TNF-alpha, P < 0.01). Hydroxychloroquine toll like receptor 9 Homo sapiens
8 CONCLUSIONS: Treatment with HCQ is associated with impaired ability of pDCs from subjects with SLE to produce IFN-alpha and TNF-alpha upon stimulation with TLR-9 and TLR-7 agonists. Hydroxychloroquine toll like receptor 9 Homo sapiens