目的检测重组人白细胞介素-10(recombinant human interleukiu-10,rhIL-10)作用后皮肤移植家兔血清中IL-10及其抗体的变化,探讨外源性hIL-10诱生IL-10增强抑制效应和外源性hIL-10有无免疫原性,为rhIL-10的应用提供实验依据。方法家兔分...目的检测重组人白细胞介素-10(recombinant human interleukiu-10,rhIL-10)作用后皮肤移植家兔血清中IL-10及其抗体的变化,探讨外源性hIL-10诱生IL-10增强抑制效应和外源性hIL-10有无免疫原性,为rhIL-10的应用提供实验依据。方法家兔分为6组:①组rhIL-10低剂量,②组rhIL-10高剂量,③组环孢菌素(CsA)低剂量,④组CsA高剂量,⑤组rhIL-10+CsA低剂量联合,⑥组生理盐水组。移植术前1d开始用药,连续用药10d,肌肉注射。术前1d、术后1d、4d、7d、14d、21d、28d分别取外周血,分离血清,以ELISA方法检测血清中IL-10及IL-10抗体水平。结果①移植家兔血清IL-10检测,术后各组结果较术前均有升高,在术后7d达到高峰,术后4d、术后7d rhIL-10低剂量及高剂量组IL-10水平高于其余各组(P<0.05)。CsA低剂量及高剂量组IL-10水平低于rhIL-10组及联合组(P<0.05)。②移植家兔血清抗IL-10抗体检测,术后各组检测结果较术前均无明显升高(P>0.05),与抗体阳性对照比较有显著差异(P<0.05)。结论 rhIL-10抗家兔皮肤移植反应中,家兔血清IL-10含量在皮肤移植后明显升高,表明外源IL-10诱导内源性IL-10分泌,从而增强抑制排斥反应;外源IL-10注射后家兔血清中没有检测出特异性抗体,外源性rhIL-10进入机体没有免疫原性。展开更多
OBJECTIVE Interleukin-10 （IL-10） is a multifunctional cytokine with both immunosuppressive and antiangiogenic functions.Previous studies have reported that IL-10 levels are signifi cantly elevated in patients with g...OBJECTIVE Interleukin-10 （IL-10） is a multifunctional cytokine with both immunosuppressive and antiangiogenic functions.Previous studies have reported that IL-10 levels are signifi cantly elevated in patients with gastric cancer （GC）. It has also been confirmed that interindividual variations in IL-10 production are genetically attributed to the polymorphisms of IL-10 gene.Therefore, this study was designed to investigate whether the polymorphisms of IL-10 gene were associated with susceptibility to GC in the Chinese population.METHODS The serum levels of IL-10 were measured by radioimmunoassay. The single nucleotide polymorphisms （SNPs） at positions -1082A/G, -819T/C and -592A/C in the IL-10 gene promoter were analyzed using polymerase chain reactionrestriction fragment length polymorphism （PCR-RFLP）.RESULTS 220 patients with gastric cancer and 180 healthy controls were included in this study. The serum levels of IL-10 were signifi cantly higher in GC patients than healthy controls （Z = -19.13, P 〈 0.001）. Single SNP analysis showed that the -1082G allele, -1082AG and -819CC genotypes significantly increased in patients with GC （P = 0.029, 0.021, 0.039 respectively）. In a logistic regression analysis adjusted for age and sex, the -1082AG genotype was associated with an odds ratio of 1.974 （95% CI,1.14-3.391; P = 0.014）, and the -819CC genotype with an odds ratio of 2.496 （95% CI, 1.222-5.102; P = 0.012） for GC. Furthermore,haplotype analysis revealed that at least five haplotypes （ATA,ACC, GCC, ACA and ATC） were existent in this population.Also that the GCC haplotype was associated with a signifi cantly increased risk of GC as compared with the ATA haplotype （OR =1.90; 95% CI, 1.11-3.27; P = 0.02）.CONCLUSION The results indicate that the gene haplotype of IL-10 may contribute to the susceptibility to GC in the Chinese population.展开更多
文摘目的检测重组人白细胞介素-10(recombinant human interleukiu-10,rhIL-10)作用后皮肤移植家兔血清中IL-10及其抗体的变化,探讨外源性hIL-10诱生IL-10增强抑制效应和外源性hIL-10有无免疫原性,为rhIL-10的应用提供实验依据。方法家兔分为6组:①组rhIL-10低剂量,②组rhIL-10高剂量,③组环孢菌素(CsA)低剂量,④组CsA高剂量,⑤组rhIL-10+CsA低剂量联合,⑥组生理盐水组。移植术前1d开始用药,连续用药10d,肌肉注射。术前1d、术后1d、4d、7d、14d、21d、28d分别取外周血,分离血清,以ELISA方法检测血清中IL-10及IL-10抗体水平。结果①移植家兔血清IL-10检测,术后各组结果较术前均有升高,在术后7d达到高峰,术后4d、术后7d rhIL-10低剂量及高剂量组IL-10水平高于其余各组(P<0.05)。CsA低剂量及高剂量组IL-10水平低于rhIL-10组及联合组(P<0.05)。②移植家兔血清抗IL-10抗体检测,术后各组检测结果较术前均无明显升高(P>0.05),与抗体阳性对照比较有显著差异(P<0.05)。结论 rhIL-10抗家兔皮肤移植反应中,家兔血清IL-10含量在皮肤移植后明显升高,表明外源IL-10诱导内源性IL-10分泌,从而增强抑制排斥反应;外源IL-10注射后家兔血清中没有检测出特异性抗体,外源性rhIL-10进入机体没有免疫原性。
文摘OBJECTIVE Interleukin-10 （IL-10） is a multifunctional cytokine with both immunosuppressive and antiangiogenic functions.Previous studies have reported that IL-10 levels are signifi cantly elevated in patients with gastric cancer （GC）. It has also been confirmed that interindividual variations in IL-10 production are genetically attributed to the polymorphisms of IL-10 gene.Therefore, this study was designed to investigate whether the polymorphisms of IL-10 gene were associated with susceptibility to GC in the Chinese population.METHODS The serum levels of IL-10 were measured by radioimmunoassay. The single nucleotide polymorphisms （SNPs） at positions -1082A/G, -819T/C and -592A/C in the IL-10 gene promoter were analyzed using polymerase chain reactionrestriction fragment length polymorphism （PCR-RFLP）.RESULTS 220 patients with gastric cancer and 180 healthy controls were included in this study. The serum levels of IL-10 were signifi cantly higher in GC patients than healthy controls （Z = -19.13, P 〈 0.001）. Single SNP analysis showed that the -1082G allele, -1082AG and -819CC genotypes significantly increased in patients with GC （P = 0.029, 0.021, 0.039 respectively）. In a logistic regression analysis adjusted for age and sex, the -1082AG genotype was associated with an odds ratio of 1.974 （95% CI,1.14-3.391; P = 0.014）, and the -819CC genotype with an odds ratio of 2.496 （95% CI, 1.222-5.102; P = 0.012） for GC. Furthermore,haplotype analysis revealed that at least five haplotypes （ATA,ACC, GCC, ACA and ATC） were existent in this population.Also that the GCC haplotype was associated with a signifi cantly increased risk of GC as compared with the ATA haplotype （OR =1.90; 95% CI, 1.11-3.27; P = 0.02）.CONCLUSION The results indicate that the gene haplotype of IL-10 may contribute to the susceptibility to GC in the Chinese population.
