Abstract:
CONTEXT:Systemic lupus erythematosus (SLE) is a systemic autoimmune disease characterized by autoreactive antibodies. Recent findings revealed the importance of innate immune responses, especially Toll-like receptors (TLRs) in the pathogenesis of SLE. OBJECTIVE:In this study, the level of TLR9 expression on peripheral blood mononuclear cells (PBMCs) was analyzed. The levels of produced IFN-α were also measured in supernatant of PBMCs from SLE patients and healthy controls after stimulation with CpG ODN2216 which is a plasmocytoid dendritic cell (pDC)-specific TLR9 ligand. MATERIALS AND METHODS:TLR9 expression was analyzed by real-time polymerase chain reaction (PCR) and flow cytometry in 35 SLE patients and 38 healthy controls and IFN-α concentration was measured in supernatants using enzyme-linked immunosorbent assay (ELISA). RESULTS:The results showed that the TLR9 expression in the mRNA and the protein level was significantly higher in PBMCs from SLE patients. However, IFN-α concentration in patients and controls significantly increased in response to CpG stimulation but this increase was significantly higher in healthy controls compared with SLE patients. Our results do not show any association between taking hydroxychloroquine and reduction in IFN-α production in SLE patients. DISCUSSION AND CONCLUSIONS:Regarding the findings of the study, there is the possibility that TLR9 has played a role in SLE pathogenesis, and consequently it implies that TLRs can be considered to be the therapeutic targets for systemic autoimmunity. We may conclude that PBMCs in patients are functionally impaired in response to TLR ligation via innate response stimulating pathogen-associated molecular patterns (PAMPs).
journal_name
Immunopharmacol Immunotoxicoljournal_title
Immunopharmacology and immunotoxicologyauthors
Mortezagholi S,Babaloo Z,Rahimzadeh P,Namdari H,Ghaedi M,Gharibdoost F,Mirzaei R,Bidad K,Salehi Edoi
10.1080/08923973.2016.1263859subject
Has Abstractpub_date
2017-02-01 00:00:00pages
11-18issue
1eissn
0892-3973issn
1532-2513journal_volume
39pub_type
杂志文章abstract::Swiss Webster mice were exposed to excess dietary aluminum (Al) (1000 micrograms Al/g diet, Al as Al lactate) from conception to 6 months of age. Splenic lymphocytes (10(6) per culture) were incubated for 24 hrs with concanavalin A (5 micrograms/ml). Concentrations of interleukin-2, interferon-gamma and tumor necrosis...
journal_title:Immunopharmacology and immunotoxicology
pub_type: 杂志文章
doi:10.3109/08923979309019733
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doi:10.3109/08923979209009210
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journal_title:Immunopharmacology and immunotoxicology
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journal_title:Immunopharmacology and immunotoxicology
pub_type: 杂志文章,多中心研究,随机对照试验
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abstract::Two dideoxynucleosides, 2',3'-dideoxy-beta-L-cytidine and 2',3'-dideoxy-beta-L-5-flurocytidine, containing unnatural L-configuration in their sugar moieties, were synthesized and assayed for antiviral activities. Both compounds were shown to possess potent anti-human immunodeficiency virus type 1 and antihepatitis B v...
journal_title:Immunopharmacology and immunotoxicology
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doi:10.3109/08923979509052717
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journal_title:Immunopharmacology and immunotoxicology
pub_type: 杂志文章
doi:10.3109/08923979909007140
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journal_title:Immunopharmacology and immunotoxicology
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journal_title:Immunopharmacology and immunotoxicology
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journal_title:Immunopharmacology and immunotoxicology
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journal_title:Immunopharmacology and immunotoxicology
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journal_title:Immunopharmacology and immunotoxicology
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journal_title:Immunopharmacology and immunotoxicology
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journal_title:Immunopharmacology and immunotoxicology
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