کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2429577 1553581 2012 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cloning and functional characterization of rat stimulator of interferon genes (STING) regulated by miR-24
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شناسی تکاملی
پیش نمایش صفحه اول مقاله
Cloning and functional characterization of rat stimulator of interferon genes (STING) regulated by miR-24
چکیده انگلیسی

Stimulator of interferon (IFN) genes (STING), also known as MPYS/MITA/ERIS/TMEM173, is a recently discovered adaptor protein that functions downstream of RIG-I and upstream of TBK1 and plays an important role in type I interferon (IFN) production. Mammalian STINGs have been isolated from human, mouse, pig, cattle and chimpanzee. In this study, the rat STING cDNA was cloned by degenerate PCR and rapid amplification of 3′-cDNA ends (3′-RACE) strategies. The full-length cDNA of rat STING consists of 1615 bp with a 1140-bp open reading frame (ORF). The predicted protein is composed of 379 amino acids and contains 2 putative transmembrane domains. The amino acid similarities between the STING from rat and other mammals range from 68% to 82%. Real-time quantitative PCR analysis indicated that rat STING mRNA was most abundant in the spleen, pancreas and lymph node. Overexpression of rat STING led to upregulation of IFN-β mRNA expression in IEC-6 cells. Rat STING mRNA was up-regulated when IEC-6 cells were transfected with poly (I:C). In addition, a miR-24 binding site in the 3′UTR of rat STING was identified. We also found that endogenous STING could be regulated post-transcriptionally by miR-24 in IEC-6 cells. These results are of importance to reveal the biological function of STING in rat animal model.


► We cloned complete coding region and 3′UTR of rat STING for the first time.
► We examined expression of the rat STING mRNA in different tissues.
► We confirmed that the rat STING has a function in regulating IFN-β mRNA level.
► We found that rat STING could be negatively regulated by miR-24.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Developmental & Comparative Immunology - Volume 37, Issues 3–4, July 2012, Pages 414–420
نویسندگان
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