Objective To assess the diagnostic value of anti-mutated citrullinated vimentin (MCV)antibody for rheumatoid arthritis (RA).Methods Meta analysis.The databases,including PubMed,The Excerpta Medica Database (Embase) and China National Knowledge Infrastructure (CNKI),from January 1990 to January 2013,were employed to search for the studies related to diagnostic value of anti-MCV for RA.The software Meta-Disc1.4 was used to perform Meta-analysis,investigate the sources of heterogeneity and draw the summary receiver operating characteristic (SROC) curve.The Begg's test was applied to evaluate the publication bias by use of Stata1 1 software.Results A total of 27 studies were included.Pooled sensitivity was 0.74[95％ confidence interval (CI) 0.73 to 0.76] and pooled specificity was 0.83 [95％ CI (0.82 to 0.85)].The area under the summary receiver operating characteristic curves was 0.896.Twenty-three literatures which detected both anti-MCV antibody and anti-cyclic citrullinated peptide(antikCCP) antibody show that:the area under curre of anti-MCV antibody and anti-CCP antibody were 0.887 and 0.924 respectively,but there was no significant difference (Z =1.525,P =0.064).Conclusions Results of the meta-analysis demonstrated that the MCV antibody may be a useful parameter in diagnosing RA as it shows high sensitivity and specificity.But there was no statistical difference between the results of anti-MCV antibody and anti-CCP antibody for the RA diagnosis.

Objective:To establish a fast method for the generation of immature dendritic cells(DCs) from human peripheral blood mononuclear cells(hPBMCs) in vitro.Methods: High purity human CD14+ monocytes were collected using density Ficoll gradient centrifugation and MACS beads sorting system.iDCs(Immature DC) were induced after cultured with rhGM-CSF and rhIL-4 on the fourth day.Fluorescence activated cell sorting(FACS) was used to identify cell surface markers(CCR5) and capabilities of antigen uptake of iDCs on the fourth day.Ordinary optical microscope,scanning electron microscopy and transmission electron microscopy were used to observe surface and internal structure of iDCs on the fourth day of culture conditions.Results: FACS result shows that the purity of CD14+ monocytes collected from hPBMCs were more than 94%.The antigen uptake capability and CD195 of iDCs was detected on the fourth day of cultured conditions.Typical surface and internal structure characteristics of iDCs were observed.Conclusion: Rapid induction culture is an effective method for obtaining a large number of iDC with typical characteristics in vitro,and can be used for further experimental study.