Journal: Arthritis
Article Title: Combination of Interleukin-27 and MicroRNA for Enhancing Expression of Anti-Inflammatory and Proosteogenic Genes
doi: 10.1155/2017/6365857
Figure Lengend Snippet: Signaling by IL-27. (a) Example of a PathGen analysis. Output analyses using gene expression and luciferase reporter assay data following IL-27 treatment of osteoblasts. IL-27 is formed by EBI3 and IL27p28 subunits, and it binds to receptor IL27RA (WSX1) with gp130. Image cropped in the center and left edge for summarizing the main signaling connections converging in Smad3, Runx2, Stat1, and Stat3, and other connections seen to BMP2, SPP1, DKK1, and WNT10b . Green, upregulated genes; purple, downregulated genes. (b) Reporter luciferase assay with BRE-Luc (BRE motif binds SMAD1/5/8 and responds to BMP family members). Right plot, reporter luciferase assay with SBE4-Luc (SBE motif binds SMAD2/3/4 and responds to TGFB family members) ( ∗ P < 0.05). OC, differentiating osteoclasts; OB, differentiating osteoblasts.
Article Snippet: For luciferase assays, constructs responsive to the active (phosphorylated) form of STAT1 or STAT3 were used (STAT1.GAS/ISRE- and STAT3/3-Luc; Panomics, Fremont, CA) or OPN-, RUNX2-, IL-17a-, TRAF2-, and TLR10-Luc (Switchgear Genomics, Carlsbad, CA) and Tcf/Lef-, BRE-, and SBE/FBE-Luc (SBE4-) or TNF-Luc (12456, 45126, 16525, and 11110, Addgene, Cambridge, MA) and 2% CMV-Bgal (Clontech, Mountain View, CA) as a transfection control to transfect cells using Lipofectamine 3000 or DMRIE-C reagents (Invitrogen, Carlsbad, CA) according to manufacturer's protocols [ ]. miRNA mimics were purchased from Sigma-Aldrich at 5 nmol and utilized in a transfection at a 5 pmol final concentration. miRNA sequences are 100% conserved in human and mouse miRNA according to the miRbase database [ ] and are as follows, miR-17, MIMAT0000070, CAAAGUGCUUACAGUGCAGGUAG , miR-210, MIMAT0000267, CUGUGCGUGUGACAGCGGCUGA , miR-29b-3p, MIMAT0000100, UAGCACCAUUUGAAAUCAGUGUU, miR-20b, MIMAT0001413, CAAAGUGCUCAUAGUGCAGGUAG , miR-10a, MIMAT0000253, UACCCUGUAGAUCCGAAUUUGUG , miR-let7f-5p, MIMAT0000067, UGAGGUAGUAGAUUGUAUAGUU, and miR-21-5p, MIMAT0000076, UAGCUUAUCAGACUGAUGUUGA .
Techniques: Gene Expression, Luciferase, Reporter Assay