Objective To investigate the effects of stimulant for nucleotide-binding oligomerization domain 1 （NOD1） on secretion of proinflammatory chemokine/cytokines and insulin-dependent glucose uptake in human differentiat...Objective To investigate the effects of stimulant for nucleotide-binding oligomerization domain 1 （NOD1） on secretion of proinflammatory chemokine/cytokines and insulin-dependent glucose uptake in human differentiated adipocytes. Methods Adipose tissues were obtained from patients undergoing liposuction. Stromal vascular cells were extracted and differentiated into adipocytes. A specific ligand for NOD1, was administered to human adipocytes in culture. Nuclear factor-κB transcriptional activity and proinflammatory chemokine/cytokines production were determined by reporter plasmid assay and enzyme-linked immunosorbent assay, respectively. Insulin-stimulated glucose uptake was measured by 2-deoxy-D-[ 3 H] glucose uptake assay. Furthermore, chemokine/cytokine secretion and glucose uptake in adipocytes transfected with small interfering RNA （siRNA） targeting NOD1 upon stimulation of NOD1 ligand were analyzed. Results Nuclear factor-κB transcriptional activity and monocyte chemoattractant protein-1 （MCP-1）, interleukin （IL）-6, and IL-8 secretion in human adipocytes were markedly increased stimulated with NOD1 ligand （all P〈0.01）. Insulin-induced glucose uptake was decreased upon the activation of NOD1 （P〈0.05）. NOD1 gene silencing by siRNA reduced NOD1 ligand-induced MCP-1, IL-6, and IL-8 release and increased insulin-induced glucose uptake （all P〈0.05）. Conclusion NOD1 activation in adipocytes might be implicated in the onset of insulin resistance.展开更多
目的分析双硫死亡(disulfidptosis)相关基因人PDZ和LIM域蛋白1(PDZ and LIM domain protein 1,PDLIM1)m RNA在多种肿瘤中的表达及作用。方法通过仙桃学术网站分析PDLIM1 mRNA的表达情况。利用仙桃学术网站和Sangerbox 3.0数据分析平台探...目的分析双硫死亡(disulfidptosis)相关基因人PDZ和LIM域蛋白1(PDZ and LIM domain protein 1,PDLIM1)m RNA在多种肿瘤中的表达及作用。方法通过仙桃学术网站分析PDLIM1 mRNA的表达情况。利用仙桃学术网站和Sangerbox 3.0数据分析平台探究PDLIM1在33种肿瘤中的诊断和预后能力。利用TISIDB数据库分析PDLIM1与临床分级和分期的相关性。在Sangerbox 3.0数据分析平台和Kaplan-Meier Plotter数据库中分析PDLIM1与肿瘤免疫相关性。通过STRING数据库和Cytoscape构建蛋白质互作网络(protein-protein interaction networks,PPI)。利用Sangerbox 3.0数据分析平台进行富集分析。最后利用GSCA(Gene Set Cancer Analysis)网站分析获得PDLIM1 mRNA表达与药物的敏感性。结果PDLIM1 mRNA在33种肿瘤中表达量存在异质性。PDLIM1在胆管癌(CHOL)、多形性胶质母细胞瘤(GBM)、肾透明细胞癌(KIRC)、肺腺癌(LUAD)、卵巢癌(OV)、胰腺癌(PAAD)、黑色素瘤(SKCM)和睾丸生殖细胞肿瘤(TGCT)中具有良好的诊断能力。PDLIM1在胶质瘤(GBMLGG)、脑低级别胶质瘤(LGG)、混合肾癌(KIPAN)、多形性胶质细胞瘤(GBM)、间皮瘤(MESO)、葡萄膜黑色素瘤(UVM)和肾上腺皮质癌(ACC)中高表达预后差,而在肉瘤中低表达预后差。PDLIM1 mRNA表达与头颈鳞状细胞癌(HIVSC)、肾乳头状细胞癌(KIRP)、子宫内膜癌(UCEC)、子宫癌肉瘤(UCS)和葡萄膜黑色素瘤(UVM)的分级,以及与宫颈癌、头颈鳞状细胞癌、子宫内膜癌和脑低级别胶质瘤肿瘤的分期有关。PDLIM1与以前列腺癌为首的36种肿瘤的免疫浸润显著相关,且发现在PDLIM1 mRNA高表达的患者中经免疫治疗后的预后相对较好。PDLIM1在生物体内主要通过参与肌动蛋白细胞骨架、细胞黏附、肿瘤相关途径的调节来发挥作用,对以Isoliquiritigenin为首的多种药物敏感。结论PDLIM1与多种肿瘤的临床预后和免疫浸润等方面密切相关,有望成为一种肿瘤诊断和预后生物标志物或治疗靶点。展开更多
目的 探讨己糖激酶结构域成分1(HKDC1)对人结直肠癌细胞增殖、迁移、侵袭能力的影响。方法 HT-29、SW480细胞进行瞬时转染,设置HKDC1-si RNA组、阴性对照组及空白组。同时收集2020年3月至2022年5月河北北方学院附属第一医院接受手术的5...目的 探讨己糖激酶结构域成分1(HKDC1)对人结直肠癌细胞增殖、迁移、侵袭能力的影响。方法 HT-29、SW480细胞进行瞬时转染,设置HKDC1-si RNA组、阴性对照组及空白组。同时收集2020年3月至2022年5月河北北方学院附属第一医院接受手术的50例患者的结直肠癌组织和癌旁正常组织。RT-q PCR实验检测HKDC1 m RNA表达;Western blot实验检测HKDC1蛋白表达;CCK-8实验、划痕实验和Transwell实验检测细胞增殖、迁移和侵袭能力。结果 HT-29细胞HKDC1 m RNA的表达量高于SW480细胞(P<0.05),故选取HT-29细胞株用于后续实验。结直肠癌组织中HKDC1 m RNA、光密度值高于癌旁正常组织(P<0.05)。空白组与阴性对照组HKDC1 m RNA、蛋白表达水平比较,差异无统计学意义(P>0.05);HKDC1-si RNA组HKDC1 m RNA、蛋白表达水平低于阴性对照组(P<0.05)。空白组与阴性对照组光密度值比较,差异无统计学意义(P>0.05);HKDC1-si RNA组光密度值低于阴性对照组(P<0.05)。空白组与阴性对照组细胞迁移率比较,差异无统计学意义(P>0.05);HKDC1-si RNA组细胞迁移率低于阴性对照组(P<0.05)。空白组与阴性对照组细胞迁移数目比较,差异无统计学意义(P>0.05);HKDC1-si RNA组细胞迁移数目低于阴性对照组(P<0.05)。结论 HKDC1在结直肠癌组织及细胞中高表达,可促进结直肠癌细胞的增殖、迁移及侵袭能力,有望成为结直肠癌基因治疗的新靶点。展开更多
基金Supported by Grant from Department of Education of Liaoning Province(2008810)
文摘Objective To investigate the effects of stimulant for nucleotide-binding oligomerization domain 1 （NOD1） on secretion of proinflammatory chemokine/cytokines and insulin-dependent glucose uptake in human differentiated adipocytes. Methods Adipose tissues were obtained from patients undergoing liposuction. Stromal vascular cells were extracted and differentiated into adipocytes. A specific ligand for NOD1, was administered to human adipocytes in culture. Nuclear factor-κB transcriptional activity and proinflammatory chemokine/cytokines production were determined by reporter plasmid assay and enzyme-linked immunosorbent assay, respectively. Insulin-stimulated glucose uptake was measured by 2-deoxy-D-[ 3 H] glucose uptake assay. Furthermore, chemokine/cytokine secretion and glucose uptake in adipocytes transfected with small interfering RNA （siRNA） targeting NOD1 upon stimulation of NOD1 ligand were analyzed. Results Nuclear factor-κB transcriptional activity and monocyte chemoattractant protein-1 （MCP-1）, interleukin （IL）-6, and IL-8 secretion in human adipocytes were markedly increased stimulated with NOD1 ligand （all P〈0.01）. Insulin-induced glucose uptake was decreased upon the activation of NOD1 （P〈0.05）. NOD1 gene silencing by siRNA reduced NOD1 ligand-induced MCP-1, IL-6, and IL-8 release and increased insulin-induced glucose uptake （all P〈0.05）. Conclusion NOD1 activation in adipocytes might be implicated in the onset of insulin resistance.
文摘目的 探讨己糖激酶结构域成分1(HKDC1)对人结直肠癌细胞增殖、迁移、侵袭能力的影响。方法 HT-29、SW480细胞进行瞬时转染,设置HKDC1-si RNA组、阴性对照组及空白组。同时收集2020年3月至2022年5月河北北方学院附属第一医院接受手术的50例患者的结直肠癌组织和癌旁正常组织。RT-q PCR实验检测HKDC1 m RNA表达;Western blot实验检测HKDC1蛋白表达;CCK-8实验、划痕实验和Transwell实验检测细胞增殖、迁移和侵袭能力。结果 HT-29细胞HKDC1 m RNA的表达量高于SW480细胞(P<0.05),故选取HT-29细胞株用于后续实验。结直肠癌组织中HKDC1 m RNA、光密度值高于癌旁正常组织(P<0.05)。空白组与阴性对照组HKDC1 m RNA、蛋白表达水平比较,差异无统计学意义(P>0.05);HKDC1-si RNA组HKDC1 m RNA、蛋白表达水平低于阴性对照组(P<0.05)。空白组与阴性对照组光密度值比较,差异无统计学意义(P>0.05);HKDC1-si RNA组光密度值低于阴性对照组(P<0.05)。空白组与阴性对照组细胞迁移率比较,差异无统计学意义(P>0.05);HKDC1-si RNA组细胞迁移率低于阴性对照组(P<0.05)。空白组与阴性对照组细胞迁移数目比较,差异无统计学意义(P>0.05);HKDC1-si RNA组细胞迁移数目低于阴性对照组(P<0.05)。结论 HKDC1在结直肠癌组织及细胞中高表达,可促进结直肠癌细胞的增殖、迁移及侵袭能力,有望成为结直肠癌基因治疗的新靶点。
