PMID- 23547889 OWN - NLM STAT- MEDLINE DCOM- 20131112 LR - 20191210 IS - 1502-7732 (Electronic) IS - 0300-9742 (Linking) VI - 42 IP - 5 DP - 2013 TI - Protective effect of allograft inflammatory factor-1 on the apoptosis of fibroblast-like synoviocytes in patients with rheumatic arthritis induced by nitro oxide donor sodium nitroprusside. PG - 349-55 LID - 10.3109/03009742.2013.772233 [doi] AB - OBJECTIVES: Inadequate apoptosis of rheumatic arthritis (RA) fibroblast-like synoviocytes (FLS) plays a crucial role in the immunopathogenesis of RA. Allograft inflammatory factor-1 (AIF-1) is a novel member of the cytokine network that has been found to be involved in the immunological process underlying RA. This study was undertaken to investigate the potential effects of AIF-1 on nitric oxide donor (NO) sodium nitroprusside (SNP)-induced RA-FLS apoptosis, and the possible molecular mechanisms underlying these effects. METHOD: FLS obtained from patients with active RA were cultured in vitro and treated with SNP in the present or absence of AIF-1. RA-FLS viability was tested by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-tetrazolium bromide (MTT) assay. RA-FLS apoptosis was analysed by flow cytometry and terminal dUTP nick-end labeling (TUNEL). The levels of phospho-Akt (p-Akt) and phospho-BAD (p-BAD) protein were detected by Western blot. RESULTS: A 24-h AIF-1 pretreatment at concentrations ranging from 10 to 100 ng/mL increased the viability of RA-FLS and prevented RA-FLS apoptosis in a dose-dependent manner in the presence of SNP. AIF-1 induced phosphorylation of Akt and BAD in a time- and concentration-dependent manner. The effect was reversed by treatment with the PI3K inhibitor LY2940042 (LY) and the nuclear factor kappa B (NF-kappaB) inhibitor pyrrolidine dithiocarbamate (PDTC). CONCLUSIONS: AIF-1 can protect RA-FLS from apoptosis induced by NO by upregulating the expression of p-Akt and p-BAD. FAU - Liu, Y AU - Liu Y AD - Department of Rheumatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology , Wuhan , China. FAU - Mei, C AU - Mei C FAU - Du, R AU - Du R FAU - Shen, L AU - Shen L LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130402 PL - England TA - Scand J Rheumatol JT - Scandinavian journal of rheumatology JID - 0321213 RN - 0 (AIF1 protein, human) RN - 0 (Calcium-Binding Proteins) RN - 0 (Chromones) RN - 0 (DNA-Binding Proteins) RN - 0 (Enzyme Inhibitors) RN - 0 (Microfilament Proteins) RN - 0 (Morpholines) RN - 0 (Nitric Oxide Donors) RN - 0 (Pyrrolidines) RN - 0 (Thiocarbamates) RN - 169D1260KM (Nitroprusside) RN - 25769-03-3 (pyrrolidine dithiocarbamic acid) RN - 31M2U1DVID (2-(4-morpholinyl)-8-phenyl-4H-1-benzopyran-4-one) SB - IM MH - Apoptosis/*drug effects MH - Calcium-Binding Proteins MH - Cell Survival/drug effects MH - Cells, Cultured MH - Chromones/pharmacology MH - DNA-Binding Proteins/*pharmacology MH - Drug Therapy, Combination MH - Enzyme Inhibitors/pharmacology MH - Female MH - Fibroblasts/drug effects/pathology MH - Health Status MH - Humans MH - Male MH - Microfilament Proteins MH - Middle Aged MH - Morpholines/pharmacology MH - Nitric Oxide Donors/*pharmacology MH - Nitroprusside/*pharmacology MH - Phosphorylation MH - Pyrrolidines/pharmacology MH - Rheumatic Fever/*pathology/physiopathology MH - Severity of Illness Index MH - Synovial Membrane/drug effects/*pathology MH - Thiocarbamates/pharmacology EDAT- 2013/04/04 06:00 MHDA- 2013/11/13 06:00 CRDT- 2013/04/04 06:00 PHST- 2013/04/04 06:00 [entrez] PHST- 2013/04/04 06:00 [pubmed] PHST- 2013/11/13 06:00 [medline] AID - 10.3109/03009742.2013.772233 [doi] PST - ppublish SO - Scand J Rheumatol. 2013;42(5):349-55. doi: 10.3109/03009742.2013.772233. Epub 2013 Apr 2.