磷酸酶互作蛋白2(Phosphatase-interacting protein 2,PSTPIP2)和溶质载体家族6成员18(Solute carrier family 6 member 18,SLC6A18)基因在动物先天性自身免疫中发挥着重要的作用。为探讨PSTPIP2基因g.43165308C>T位点和SLC6A18基因g...磷酸酶互作蛋白2(Phosphatase-interacting protein 2,PSTPIP2)和溶质载体家族6成员18(Solute carrier family 6 member 18,SLC6A18)基因在动物先天性自身免疫中发挥着重要的作用。为探讨PSTPIP2基因g.43165308C>T位点和SLC6A18基因g.8294767T>C位点多态性与牦牛免疫性状的关联性,本研究对189头娘亚牦牛的PSTPIP2基因g.43165308C>T位点和SLC6A18基因g.8294767T>C位点进行了PCR扩增,并利用PARMS SNP分型,采用IBM SPSS Statistics 26.0软件分析了不同基因位点与牦牛免疫球蛋白、炎症标志物及细胞因子等免疫性状的关联性。结果表明,PSTPIP2基因g.43165308C>T位点存在CC、CT和TT三种基因型,优势等位基因和基因型分别是C和CC,其频率分别为0.720和0.534。PSTPIP2基因g.43165308C>T位点属于中度多态位点,且处于Hardy-Weinberg平衡状态(P>0.05)。SLC6A18基因g.8294767T>C位点存在CC、TC和TT三种基因型,优势等位基因和基因型分别是T和TT,其频率分别为0.796和0.660。SLC6A18基因g.8294767T>C位点属于中度多态位点,且处于Hardy-Weinberg不平衡状态(P<0.05)。关联分析结果表明,PSTPIP2基因g.43165308C>T位点与牦牛免疫球蛋白A(IgA)、免疫球蛋白M(IgM)、C反应蛋白(CRP)、白介素-2(IL-2)、白介素-4(IL-4)、白介素-6(IL-6)、肿瘤坏死因子-α(TNF-α)均呈显著相关(P<0.05);SLC6A18基因g.8294767T>C位点与C反应蛋白(CRP)、白介素-4(IL-4)、干扰素-γ(IFN-γ)均呈显著相关(P<0.05)。综上所述,PSTPIP2和SLC6A18基因的多态性与牦牛免疫性状显著相关,这两个基因可能是影响牦牛免疫性状的潜在候选基因。展开更多
目的:研究印记基因SLC22A18(solute carrier family 22,member 18)在乳腺癌中的表达情况及其与乳腺癌侵袭能力的关系。方法:采用Transwell方法评估2种不同恶性程度的乳腺癌细胞株MDA-MB-231(恶性程度高)和MCF-7(恶性程度低)的侵袭转移...目的:研究印记基因SLC22A18(solute carrier family 22,member 18)在乳腺癌中的表达情况及其与乳腺癌侵袭能力的关系。方法:采用Transwell方法评估2种不同恶性程度的乳腺癌细胞株MDA-MB-231(恶性程度高)和MCF-7(恶性程度低)的侵袭转移能力。分别采用实时荧光定量逆转录聚合酶链反应(RT-PCR)和蛋白质印迹法检测SLC22A18的mRNA和蛋白在这2种乳腺癌细胞株中的表达情况。结果:MDA-MB-231细胞株恶性程度高,穿过膜的细胞多,侵袭能力强;MCF-7细胞株恶性程度低,穿过膜的细胞少,侵袭能力弱;SLC22A18在MCF-7中的mRNA和蛋白表达水平高于MDA-MB-231;差异有统计学意义(P<0.01)。结论:印记基因SLC22A18的表达与乳腺癌细胞的侵袭能力相关,该基因有望作为一个抑癌基因抑制乳腺癌的转移。展开更多
Mutant J61321 with enhanced siderophore production of Alteromonas aurantia AI8 was obtained after a series of chemical-physical mutageneses. It was found that the antibacterial activity against Vibrio anguillarum W-1 ...Mutant J61321 with enhanced siderophore production of Alteromonas aurantia AI8 was obtained after a series of chemical-physical mutageneses. It was found that the antibacterial activity against Vibrio anguillarum W-1 and siderophore production of the mutant were higher than those by the original strain A 18 which had been used in mariculture. The results of the specific assay（Csaky and Arnow methods） of siderophore showed that the sidrophore with hydroxamate group was produced by mutant J61321 and the original strain A 18, respectively, while the siderophore with catechol group was yielded by strain W-1 （Aibrio anguillarum）. Meanwhile, the siderophore yield, antibacterial activity and anti-chelator activity of strain J61321 were higher than those of its parent strain A 18.展开更多
文摘磷酸酶互作蛋白2(Phosphatase-interacting protein 2,PSTPIP2)和溶质载体家族6成员18(Solute carrier family 6 member 18,SLC6A18)基因在动物先天性自身免疫中发挥着重要的作用。为探讨PSTPIP2基因g.43165308C>T位点和SLC6A18基因g.8294767T>C位点多态性与牦牛免疫性状的关联性,本研究对189头娘亚牦牛的PSTPIP2基因g.43165308C>T位点和SLC6A18基因g.8294767T>C位点进行了PCR扩增,并利用PARMS SNP分型,采用IBM SPSS Statistics 26.0软件分析了不同基因位点与牦牛免疫球蛋白、炎症标志物及细胞因子等免疫性状的关联性。结果表明,PSTPIP2基因g.43165308C>T位点存在CC、CT和TT三种基因型,优势等位基因和基因型分别是C和CC,其频率分别为0.720和0.534。PSTPIP2基因g.43165308C>T位点属于中度多态位点,且处于Hardy-Weinberg平衡状态(P>0.05)。SLC6A18基因g.8294767T>C位点存在CC、TC和TT三种基因型,优势等位基因和基因型分别是T和TT,其频率分别为0.796和0.660。SLC6A18基因g.8294767T>C位点属于中度多态位点,且处于Hardy-Weinberg不平衡状态(P<0.05)。关联分析结果表明,PSTPIP2基因g.43165308C>T位点与牦牛免疫球蛋白A(IgA)、免疫球蛋白M(IgM)、C反应蛋白(CRP)、白介素-2(IL-2)、白介素-4(IL-4)、白介素-6(IL-6)、肿瘤坏死因子-α(TNF-α)均呈显著相关(P<0.05);SLC6A18基因g.8294767T>C位点与C反应蛋白(CRP)、白介素-4(IL-4)、干扰素-γ(IFN-γ)均呈显著相关(P<0.05)。综上所述,PSTPIP2和SLC6A18基因的多态性与牦牛免疫性状显著相关,这两个基因可能是影响牦牛免疫性状的潜在候选基因。
文摘目的:研究印记基因SLC22A18(solute carrier family 22,member 18)在乳腺癌中的表达情况及其与乳腺癌侵袭能力的关系。方法:采用Transwell方法评估2种不同恶性程度的乳腺癌细胞株MDA-MB-231(恶性程度高)和MCF-7(恶性程度低)的侵袭转移能力。分别采用实时荧光定量逆转录聚合酶链反应(RT-PCR)和蛋白质印迹法检测SLC22A18的mRNA和蛋白在这2种乳腺癌细胞株中的表达情况。结果:MDA-MB-231细胞株恶性程度高,穿过膜的细胞多,侵袭能力强;MCF-7细胞株恶性程度低,穿过膜的细胞少,侵袭能力弱;SLC22A18在MCF-7中的mRNA和蛋白表达水平高于MDA-MB-231;差异有统计学意义(P<0.01)。结论:印记基因SLC22A18的表达与乳腺癌细胞的侵袭能力相关,该基因有望作为一个抑癌基因抑制乳腺癌的转移。
基金supported by the National Natural Science Foundation of China(Grant No.30328021).
文摘Mutant J61321 with enhanced siderophore production of Alteromonas aurantia AI8 was obtained after a series of chemical-physical mutageneses. It was found that the antibacterial activity against Vibrio anguillarum W-1 and siderophore production of the mutant were higher than those by the original strain A 18 which had been used in mariculture. The results of the specific assay（Csaky and Arnow methods） of siderophore showed that the sidrophore with hydroxamate group was produced by mutant J61321 and the original strain A 18, respectively, while the siderophore with catechol group was yielded by strain W-1 （Aibrio anguillarum）. Meanwhile, the siderophore yield, antibacterial activity and anti-chelator activity of strain J61321 were higher than those of its parent strain A 18.
