Objective To determine the expression and clinical significance of pseudogene FMO6P in gastric cancer,and explore its functions and underlying molecular mechanism in regulating the invasion and metastasis of gastric cancer cells.Methods The expression level of FMO6P in gastric cancer tissues and cell lines was detected by quantitative real time polymerase chain reaction(qRT-PCR).The migration and invasion abilities of gastric cancer cells were detected by transwell assay.The effect of FMO6P on the tumor formation and peritoneal dissemination of gastric cancer cells were evaluated by injecting FMO6P-overexpressing gastric cancer cells into the subcutaneous or peritoneal cavity of nude mice respectively.The expression levels of epithelial-mesenchymal transition(EMT)markers,including E-cadherin,N-cadherin,ZEB1,MMP2,and the activation of AKT/mTOR pathway in FMO6P-overexpressing or knockdown gastric cancer cells were measured by Western blot.Results The expression of FMO6P was significantly reduced in tumor tissues compared to its adjacent non-tumor tissues of gastric cancer,FMO6P expression level in tumor tissues was correlated with tumor size and TNM stage.Overexpression of FMO6P significantly inhibited the invasion and migration abilities of gastric cancer cells,while downregulation of FMO6P expression promoted the invasion and migration ability of gastric cancer cells.Overexpression of FMO6P in gastric cancer cells significantly inhibited the subcutaneous tumor formation and peritoneal dissemination of gastric cancer cells in nude mice.Moreover,overexpression of FMO6P promoted the expression of E-cadherin,and inhibited the expression of N-cadherin,ZEB1,and MMP2 in gastric cancer cells.The phosphorylation levels of AKT and mTOR were also downregulated in gastric cancer cells overexpressing FMO6P.Conclusions All these findings suggested that pseudogene FMO6P suppresses the invasion and migration potential of gastric cancer cells in vitro and in vivo,which is possibly through the inhibition of the AKT/mTOR signaling pathway.

Objective In order to explore the effect of 25-(OH)D3 on monocyte chemoattratant protein (MCP)-1 expression from patients with system lupus erythematosus (SLE),we detected the level of active vitamin D and the expression of MCP-1 mRNA in patients with SLE,and analyzed the correlation between them.Methods The level of serum 25-(OH)D3 and mRNA expression of MCP-1 in 154 SLE patients and 31 healthy individuals were detected by enzyme-linked immuno sorbent assay (ELISA) and real time quanti-tative pol ymerase chain reaction (PCR) respectively.We also analyzed the correlation between serum 25-(OH)D3 level and the expression of MCP-1 mRNA,then analyzed the function of 25(OH)D3 on the regula-tion of MCP-1 mRNA expression in vitro.The differences between the two groups were tested by t-test and x2 test,multiple data were tested by one-way ANOVA and the correlation was analyzed by Pearson's correlation,all data were analyzed by statistical product and service solutions (SPSS) 17.0 software.Results The serum 25(OH)D3 levels in SLE group (20±11) ng/ml was significantly lower than normal control group (29±11) ng/ml (t=4.198,P＜0.01),and the ratio of the serum levels of vitamin D deficiency in SLE group were significantly higher than that of normal control group [55.8％(86/154) vs 22.6％(7/31),x2=11.421,P=0.001].The expression level of MCP-1 mRNA in PBMCs from the normal control group was significantly lower than the SLE group (1.14±0.27 vs 1.44± 0.31,t=3.277,P=0.001),serum 25(OH)D3 level and MCP-1 mRNA expression in patients with SLE PBMCs were significantly negatively correlated (r=-0.289,P＜0.01).Further study found that 25-(OH)D3 inhibited MCP-1 mRNA expression in PBMCs from SLE patients depending on the concentration.Conclusion The decreased 25-(OH)D3 level and up-regulated MCP-1 mRNA expression suggestthat MCP-1 may play an important role in SLE pathological process.

Objective To evaluate combined effect on different population through 2 459 data of SAA,hs-CRP and PCT from 8 three-level hospitals in Guangdong region.Methods Subjects were divided into five groups by ages,and every group had bacterial and virus type.In order to confirm diagnostic effect on infection,methods were performed including in tendency of SAA and hs-CRP,Paired t test between bacterial and virus group,efficiency of 3 indexes in judging infection depending on ROC and parameters,multiple logistic regression,consistency between positive bacterial infection and bacterial culture.Re-sults There were statistically significant differences in SAA and hs-CRP between bacterial and virus in infants and children (P <0.001).SAA had the biggest AUC area 0.824 with sensibility 71.8% and specificity 82.6% in younger group.Corre-sponding,hs-CRP had the biggest area 0.806 with sensibility 84%.There was the accuracy of 78.8% for differential diagno-sis in younger group,while 65.1% in elder group.AUC of SAA was 0.883 for positive bacterial culture with sensibility 71.2% and specificity 90.7%,accuracy of 95.2% for differential diagnosis.Conclusion There was obvious trend of age in SAA and hs-CRP,3 indexes could be used for differential diagnosis alone or combined,especially in younger group.SAA is the best index as a separated index.There is less value at ratio of SAA and hs-CRP.

ObjectiveTo determine the distribution of vitamin D receptor (VDR) gene Apa Ⅰ and Bsm Ⅰ polymorphism in systemic lupus erythematosus (SLE) and the association with SLE in Chinese Han patients.MethodsGenomic DNA from 244 Chinese SLE patients and 162 sex and ethnically matched controls were typed for VDR Apa Ⅰand Bsm Ⅰpolymorphism combination by polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP). Clinical characteristics were analyzed between different Apa ] and Bsm Ⅰ genotypes.ResultsThere was no significant difference between the distribution frequencies of allelic gene A and a in SLE patients and the controls,but the distribution frequency of genotypes heterozygote Aa in SLE patients was higher than that in the controls ( 38.9％ vs 22.2％,x2 =12.442,P =0.000).There was no significant difference between the distribution frequency of allelic gene and genotypes of Bsm Ⅰin SLE patients and the controls ( P ＞ 0.05 ).However,there was significant difference between the distribution frequencies of Apa Ⅰ and Bsm Ⅰ genotypes combination in SLE patients and the controls (x2 =18.226,P =0.006).The distribution frequency of genotypes Aa-bb in SLE patients was higher than that in the controls ( 32.4％ vs 17.9％,x2 =10.449 P =0.001 ),while the distribution frequency of genotypes Aa-bb in SLE patients was lower than that in the controls (30.3％ vs 42.0％,x2 =5.808,P =0.016). Furthermore,analyzing the effect of VDR Apa Ⅰand Bsm Ⅰ polymorphism combination to the symptoms of SLE,significant difference was observed in SLE patients carrying Aa-bb genotypes involved in serositis ( P =0.003 ),hematological system disorder ( P =0.021 ),and anti-Sm antibodies ( P =0.01 ) compared with other genotypes.ConclusionThere is significant association between Apa Ⅰ and Bsm Ⅰ gene polymorphism Aa-bb genotypes and the incidence of SLE in the Han population of China,and genotype Aa-bb is more involved in serositis,hematological system disorder and has a positive effect on production of antibodies.

Objective To investigate the existence and significance of circulating autoantibodies to thrombopoietin (TPO) in sera from patients with systemic lupus erythematosus (SLE).Methods Fifty-six consecutive patients with SLE,twenty patients with idiopathic thrombocytopenic purpura (ITP),and twenty normal individuals were involved in this study.The characteristics of all patients with SLE were analyzed.Antibodies to TPO were detected using an enzyme-linked immunosorbent assay (ELISA).For normal distribution count data,x2 test or Fisher exact test was used,t test was used for measurement data,and Wilcoxon's rank test for non-normally distributed data which was represented by M(Q).Results A higher frequency of antibodies to TPO were observed in SLE patients than those in healthy controls (39.3％ vs 0,x2=11.058,P=0.001).Moreover,anti-TPO antibodies were detected in 15 (57.7％) of 26 SLE patients with thrombocytopenia,compared with that in 7 (23.3％,x2=6.894,P=0.009) of 30 patients without thrombocytopenia.Furthermore,the patients with antibodies to TPO exhibited more severe thrombocytopenia (t=3.010,P=0.004).Finally,anti-TPO antibodies seemed more likely to occur in patients with arthritis (x2=5.959,P=0.015),anti-dsDNA antibodies (x2=5.959,P=0.015).Conclusion The high incidence of antibodies to TPO in SLE patients with thrombocytopenia suggests that anti-TPO antibodies might play a vital role in SLE patients developing thrombocytopenia.Thus,there might be a clinical value by detecting anti-TPO antibodies in SLE patients with thrombocytopenia.

Objective To determine plasma soluble HLA-G (sHLA-G) levels in patients with systemic lupus erythematosus (SLE),and to analyze its association with the possibility of organs or systems involvement in lupus patients.Methods Plasma samples were collected from 96 SLE patients and 74 healthy controls,and sHLA-G levels were determined by enzyme-linked immunosorbent assay.The sHLA-G levels in SLE patients and healthy controls were compared with students't-test.The difiefence of clinical and seroimmunological data among the SLE patients was assessed by chi-square test or students't-test.A value of P<0.05 was considered to be significant.Results Plasma concentration of sHLA-G was significanto higher in SLE patients than that in healthy controls[(230±192)U/ml vs(118±38)U/ml,P=0.0001].No relationship between plasma sHLA-G levels and SLE disease activity index(SLEDAI)was found(r=0.157,P=0.141).However,the patients with increased levels of sHLA-G had more severe disease activity (11±5 vs 8±5,P=0.027) and more central nervous system (CNS) involvement (24.2% vs 4.8%,P=0.007) in comparison with patients with normal plasma levels of sHLA-G.Conclusion The increased production sHLA-G,paralleled with more severe disease activity and higher CNS involvement,indicates that sHLA-G may play an important role in the pathogenesis of SLE.

Objective To study clinical characteristics in patients of systemic lupus erythematosus (SLE)with cardiac involvement and to assess relevant risk factors contributed to it.Methods Totally,239 patients of SLE were evaluated by cardiogram,echocardiogram and serologic examinations,and those with cardiac involvement were compared to those without it by clinical and laboratory data.Results There were 114 of 239(47.7%)SEE patients with cardiac abnormalities,of whom only 31(27.2%)had cardiac symptoms,including 44 cases(38.6%)with hydropericardium,32(28.1%)with myocardial damage,14 (12.3%)with cardiac valvular lesions,19(16.7%)with cardiac block,and 13 with other cardiac damages.No significant difference in age,gender,course of disease,SLE activity index(SEEDAI)scores,serum levels of auto-antibodies and complement(C3),and so on,were found between 114 SLE patients with cardiac abnormalities and 64 without it,who were:randomly selected from 125 patients of SEE without cardiac damage.But,patients of SLE complicated with pericarditis or myocardial lesions had higher SLEDAI scores and lower serum level of C3 than those without cardiac lesions(both P＜0.05),and relatively longer course of disease was found in those with valvular heart disease.Conclusions Cardiac damage was common in patients with SLE,but most of whom were asymptomatic,and only those with severe and active illness tended to develop pericarditis and myocardial damage and those with longer course were liable to have valvular heart disease.

0.05).However,the patients with increased levels of sHLA-G had higher incidence of central nervous system involvement(P=0.007) and more severe disease activity(P=0.027) in comparison with patients with normal plasma sHLA-G levels.Finally,the expression of plasma sHLA-G was not influenced by the treatment with glucocorticoids,immunosuppressive agents or antimalarials.Conclusion The increased production of sHLA-G indicates that sHLA-G may play an important role in the pathogenesis of SLE.The expression of sHLA-G may be associated with disease activity and severity of lupus patients,but be independence of HLA-G 14bp ins/del polymorphism and drug treatment.