AIM： To investigate the expression profile of IL-8 in inflammatory and malignant colorectal diseases to evaluate its potential role in the regulation of colorectal cancer （CRC） and the development of colorectal liv...AIM： To investigate the expression profile of IL-8 in inflammatory and malignant colorectal diseases to evaluate its potential role in the regulation of colorectal cancer （CRC） and the development of colorectal liver metastases （CRLM）.METHODS： IL-8 expression was assessed by quantitative real-time PCR （Q-RT-PCR） and the enzyme-linked immunosorbent assay （ELISA） in resected specimens from patients with ulcerative colitis （UC, n = 6） colorectal adenomas （CRA, n = 8）, different stages of colorectal cancer （n = 48） as well as synchronous and metachronous CRLM along with their corresponding primary colorectal tumors （n = 16）.RESULTS： IL-8 mRNA and protein expression was significantly up-regulated in all pathological colorectal entities investigated compared with the corresponding neighboring tissues. However, in the CRC specimens IL-8 revealed a significantly more pronounced overexpression in relation to the CRA and UC tissues with an average 30-fold IL-8 protein up-regulation in the CRC specimens in comparison to the CRA tissues. Moreover, [L-8 expression revealed a close correlation with tumor grading. Most interestingly, IL-8 up-regulation was most enhanced in synchronous and metachronous CRLM, if compared with the corresponding primary CRC tissues. Herein, an up to 80-fold IL-8 overexpression in individual metachronous metastases compared to normal tumor neighbor tissues was found.CONCLUSION： Our results strongly suggest an association between IL-8 expression, induction and progression of colorectal carcinoma and the development of colorectal liver metastases.展开更多
AIM: To investigate the effects of interleukin-8 (IL-8 ), macrophage migration inhibitory factor (MIF ) gene polymorphisms, Helicobacter pylori (H. pylori ) infection, on the risk of developing severe chronic atrophic...AIM: To investigate the effects of interleukin-8 (IL-8 ), macrophage migration inhibitory factor (MIF ) gene polymorphisms, Helicobacter pylori (H. pylori ) infection, on the risk of developing severe chronic atrophic gastritis (SCAG) and intestinal metaplasia (IM). METHODS: A total of 372 cases were selected from a cohort study in Linqu County, a high risk area for gastric cancer (GC) in northern China. To obtain a sufficient group size, patients with normal or superficial gastritis were included. Based on an average follow-up period of 56 mo, the 372 cases were divided into no progres-sion group (no histological progression from normal or superficial gastritis, n = 137), group Ⅰ (progressed from normal or superficial gastritis to SCAG, n = 134) and group Ⅱ (progressed from normal or superficial gastritis to IM, n = 101). IL-8 , MIF gene polymorphisms were detected by polymerase chain reaction-based denaturing high-performance liquid chromatography analysis and DNA sequencing. RESULTS: An increased risk of SCAG was found in subjects with IL-8-251 AA genotype [odds ratio (OR) = 2.62, 95% CI: 1.23-5.72] or IL-8-251 A allele carriers (AA + AT) (OR = 1.81, 95% CI: 1.06-3.09). An elevated risk of IM was found in subjects with IL-8-251 AT genotype (OR = 2.27, 95% CI: 1.25-4.14) or IL-8-251 A allele carriers (OR = 2.07, 95% CI: 1.16-3.69). An increased risk of SCAG was found in subjects with MIF-173 GC genotype (OR = 2.36, 95% CI: 1.38-4.02) or MIF-173 C allele carriers (GC + CC) (OR = 2.07, 95% CI: 1.21-3.55). An elevated risk of IM was found in subjects with MIF-173 CC genotype (OR = 2.27, 95% CI: 1.16-4.46) or MIF-173 C allele carriers (OR = 3.84, 95% CI: 1.58-9.34). The risk of SCAG and IM was more evident in subjects carrying IL-8-251 A allele (OR = 6.70, 95% CI: 1.29-9.78) or MIF-173 C allele (OR = 6.54, 95% CI: 2.97-14.20) and positive for H. pylori infection. CONCLUSION: IL-8-251 and MIF-173 gene polymorphisms are significantly associated with the risk of SCAG and IM in a population with a high risk of GC i展开更多
LST8(lethal with SEC13 protein 8)是TOR(target of rapamycin)复合物的重要组成成分,在生物生长和发育的调控中发挥重要作用。本研究根据马氏珠母贝转录组数据库中注释为LST8的unigene序列设计引物,采用cDNA末端快速扩增(RACE)技术克...LST8(lethal with SEC13 protein 8)是TOR(target of rapamycin)复合物的重要组成成分,在生物生长和发育的调控中发挥重要作用。本研究根据马氏珠母贝转录组数据库中注释为LST8的unigene序列设计引物,采用cDNA末端快速扩增(RACE)技术克隆获得了马氏珠母贝LST8基因cDNA全长序列(pm-LST8);同时利用荧光定量PCR(Real-time PCR)技术检测了pm-LST8在马氏珠母贝各个组织中的表达含量。结果表明,pm-LST8基因cDNA全长1 350 bp,其中开放阅读框为948 bp,编码316个氨基酸残基,5'UTR为104 bp,3'UTR为298 bp,含有29 bp polyA。预测其分子量为35.4 kD,等电点为6.11。多序列比对显示pm-LST8与其它物种的LST8有较高的保守性,与牡蛎的同源序列高达82%。蛋白质结构预测显示pm-LST8具有典型的WD40结构域。荧光定量PCR分析表明pm-LST8在马氏珠母贝闭壳肌、鳃、外套膜、肝胰脏、性腺、足、血淋巴七个组织中均有表达,其中在性腺中表达量最高。本研究为进一步阐述LST8在马氏珠母贝生长和发育调控中的作用提供理论基础。展开更多
目的探讨ABCG5和ABCG8基因在胆囊胆固醇结石和胆固醇息肉发生、发展中的作用。方法回顾性研究2012年3月至2014年3月在中山大学附属第一医院行胆囊切除术的60例患者临床资料。其中男31例,女29例;平均年龄(49±6)岁。所有患者均签署...目的探讨ABCG5和ABCG8基因在胆囊胆固醇结石和胆固醇息肉发生、发展中的作用。方法回顾性研究2012年3月至2014年3月在中山大学附属第一医院行胆囊切除术的60例患者临床资料。其中男31例,女29例;平均年龄(49±6)岁。所有患者均签署知情同意书,符合医学伦理学规定。根据病理学诊断结果,将患者分为胆囊胆固醇结石组(结石组)、胆囊胆固醇息肉组(息肉组)及正常胆囊切除对照组(对照组)。采用实时荧光定量PCR检测胆囊上皮细胞ABCG5和ABCG8 m RNA相对表达量。3组患者m RNA相对表达量的比较采用单因素方差分析和LSD-t检验。结果结石组ABCG5和ABCG8 m RNA相对表达量分别为3.3±0.9和6.9±1.5,明显高于对照组的2.4±0.6和4.3±1.5(LSD-t=23.58,16.55;P<0.05)。息肉组ABCG5和ABCG8 m RNA相对表达量分别为2.6±0.7和4.6±1.3,与对照组比较差异无统计学意义(LSD-t=1.18,0.73;P>0.05)。结论 ABCG5和ABCG8基因可能通过不同机制在胆囊胆固醇结石和胆固醇息肉的发生、发展中发挥作用。展开更多
目的:探讨白细胞介素-8(IL-8)基因-251(A/T)位点单核苷酸多态性(SNP)与冠心病血瘀证遗传易感性的关系。方法:采用病例-对照研究,以聚合酶链反应-限制性片段长度多态性(PCR-RFLP)的方法,分析136例冠心病血瘀证和122例健康对照组IL-8-251A...目的:探讨白细胞介素-8(IL-8)基因-251(A/T)位点单核苷酸多态性(SNP)与冠心病血瘀证遗传易感性的关系。方法:采用病例-对照研究,以聚合酶链反应-限制性片段长度多态性(PCR-RFLP)的方法,分析136例冠心病血瘀证和122例健康对照组IL-8-251A/T SNP分布情况。结果:位点基因型频率分布结果显示,IL-8-251A/T多态性位点各基因型频率和等位基因频率在CHD血瘀证组和对照组相比,差异有统计学意义(P<0.05)。IL-8-251多态的基因型分布频率在对照组人群中符合Hardy-Weinberg平衡(P=0.984),在有家族史的CHD血瘀证组中AT型基因提高其发病风险,其OR(95%CI)为4.350[1.108,17.073],P<0.05,其余未见有影响。结论:IL-8-251A/T SNP AT基因型可增加家族聚集性冠心病血瘀证的易感性。展开更多
Migraine is a common and debilitating headache disorder. Although its pathogenesis remains elusive,abnormal trigeminal and central nervous system activity is likely to play an important role. Transient receptor potent...Migraine is a common and debilitating headache disorder. Although its pathogenesis remains elusive,abnormal trigeminal and central nervous system activity is likely to play an important role. Transient receptor potential(TRP) channels, which transduce noxious stimuli into pain signals, are expressed in trigeminal ganglion neurons and brain regions closely associated with the pathophysiology of migraine. In the trigeminal ganglion,TRP channels co-localize with calcitonin gene-related peptide, a neuropeptide crucially implicated in migraine pathophysiology. Many preclinical and clinical data support the roles of TRP channels in migraine. In particular,activation of TRP cation channel V1 has been shown to regulate calcitonin gene-related peptide release from trigeminal nerves. Intriguingly, several effective antimigraine therapies, including botulinum neurotoxin type A, affect the functions of TRP cation channels. Here, we discuss currently available data regarding the roles of major TRP cation channels in the pathophysiology of migraine and the therapeutic applicability thereof.展开更多
In recent years,significant breakthroughs have been made in the field of gene ther-apy.Adeno-associated virus(AAV)is one of the most promising gene therapy vectors and a powerful tool for delivering the gene of intere...In recent years,significant breakthroughs have been made in the field of gene ther-apy.Adeno-associated virus(AAV)is one of the most promising gene therapy vectors and a powerful tool for delivering the gene of interest.Among the AAV vectors,AAV serotype 8(AAv8)has attracted much attention for its efficient and stable gene transfection into specific tissues.Currently,recombinant AAv8 has been widely used in gene therapy research on a va-riety of diseases,including genetic diseases,cancers,autoimmune diseases,and viral diseases.展开更多
文摘AIM： To investigate the expression profile of IL-8 in inflammatory and malignant colorectal diseases to evaluate its potential role in the regulation of colorectal cancer （CRC） and the development of colorectal liver metastases （CRLM）.METHODS： IL-8 expression was assessed by quantitative real-time PCR （Q-RT-PCR） and the enzyme-linked immunosorbent assay （ELISA） in resected specimens from patients with ulcerative colitis （UC, n = 6） colorectal adenomas （CRA, n = 8）, different stages of colorectal cancer （n = 48） as well as synchronous and metachronous CRLM along with their corresponding primary colorectal tumors （n = 16）.RESULTS： IL-8 mRNA and protein expression was significantly up-regulated in all pathological colorectal entities investigated compared with the corresponding neighboring tissues. However, in the CRC specimens IL-8 revealed a significantly more pronounced overexpression in relation to the CRA and UC tissues with an average 30-fold IL-8 protein up-regulation in the CRC specimens in comparison to the CRA tissues. Moreover, [L-8 expression revealed a close correlation with tumor grading. Most interestingly, IL-8 up-regulation was most enhanced in synchronous and metachronous CRLM, if compared with the corresponding primary CRC tissues. Herein, an up to 80-fold IL-8 overexpression in individual metachronous metastases compared to normal tumor neighbor tissues was found.CONCLUSION： Our results strongly suggest an association between IL-8 expression, induction and progression of colorectal carcinoma and the development of colorectal liver metastases.
基金Supported by The Grants from Beijing Municipal Science Foundationthe Key Technology Research and Development Program, No. 2002BA711A06+1 种基金the National 973 Project, No.1998051203863 Project, No. 2006A402
文摘AIM: To investigate the effects of interleukin-8 (IL-8 ), macrophage migration inhibitory factor (MIF ) gene polymorphisms, Helicobacter pylori (H. pylori ) infection, on the risk of developing severe chronic atrophic gastritis (SCAG) and intestinal metaplasia (IM). METHODS: A total of 372 cases were selected from a cohort study in Linqu County, a high risk area for gastric cancer (GC) in northern China. To obtain a sufficient group size, patients with normal or superficial gastritis were included. Based on an average follow-up period of 56 mo, the 372 cases were divided into no progres-sion group (no histological progression from normal or superficial gastritis, n = 137), group Ⅰ (progressed from normal or superficial gastritis to SCAG, n = 134) and group Ⅱ (progressed from normal or superficial gastritis to IM, n = 101). IL-8 , MIF gene polymorphisms were detected by polymerase chain reaction-based denaturing high-performance liquid chromatography analysis and DNA sequencing. RESULTS: An increased risk of SCAG was found in subjects with IL-8-251 AA genotype [odds ratio (OR) = 2.62, 95% CI: 1.23-5.72] or IL-8-251 A allele carriers (AA + AT) (OR = 1.81, 95% CI: 1.06-3.09). An elevated risk of IM was found in subjects with IL-8-251 AT genotype (OR = 2.27, 95% CI: 1.25-4.14) or IL-8-251 A allele carriers (OR = 2.07, 95% CI: 1.16-3.69). An increased risk of SCAG was found in subjects with MIF-173 GC genotype (OR = 2.36, 95% CI: 1.38-4.02) or MIF-173 C allele carriers (GC + CC) (OR = 2.07, 95% CI: 1.21-3.55). An elevated risk of IM was found in subjects with MIF-173 CC genotype (OR = 2.27, 95% CI: 1.16-4.46) or MIF-173 C allele carriers (OR = 3.84, 95% CI: 1.58-9.34). The risk of SCAG and IM was more evident in subjects carrying IL-8-251 A allele (OR = 6.70, 95% CI: 1.29-9.78) or MIF-173 C allele (OR = 6.54, 95% CI: 2.97-14.20) and positive for H. pylori infection. CONCLUSION: IL-8-251 and MIF-173 gene polymorphisms are significantly associated with the risk of SCAG and IM in a population with a high risk of GC i
文摘LST8(lethal with SEC13 protein 8)是TOR(target of rapamycin)复合物的重要组成成分,在生物生长和发育的调控中发挥重要作用。本研究根据马氏珠母贝转录组数据库中注释为LST8的unigene序列设计引物,采用cDNA末端快速扩增(RACE)技术克隆获得了马氏珠母贝LST8基因cDNA全长序列(pm-LST8);同时利用荧光定量PCR(Real-time PCR)技术检测了pm-LST8在马氏珠母贝各个组织中的表达含量。结果表明,pm-LST8基因cDNA全长1 350 bp,其中开放阅读框为948 bp,编码316个氨基酸残基,5'UTR为104 bp,3'UTR为298 bp,含有29 bp polyA。预测其分子量为35.4 kD,等电点为6.11。多序列比对显示pm-LST8与其它物种的LST8有较高的保守性,与牡蛎的同源序列高达82%。蛋白质结构预测显示pm-LST8具有典型的WD40结构域。荧光定量PCR分析表明pm-LST8在马氏珠母贝闭壳肌、鳃、外套膜、肝胰脏、性腺、足、血淋巴七个组织中均有表达,其中在性腺中表达量最高。本研究为进一步阐述LST8在马氏珠母贝生长和发育调控中的作用提供理论基础。
文摘目的探讨ABCG5和ABCG8基因在胆囊胆固醇结石和胆固醇息肉发生、发展中的作用。方法回顾性研究2012年3月至2014年3月在中山大学附属第一医院行胆囊切除术的60例患者临床资料。其中男31例,女29例;平均年龄(49±6)岁。所有患者均签署知情同意书,符合医学伦理学规定。根据病理学诊断结果,将患者分为胆囊胆固醇结石组(结石组)、胆囊胆固醇息肉组(息肉组)及正常胆囊切除对照组(对照组)。采用实时荧光定量PCR检测胆囊上皮细胞ABCG5和ABCG8 m RNA相对表达量。3组患者m RNA相对表达量的比较采用单因素方差分析和LSD-t检验。结果结石组ABCG5和ABCG8 m RNA相对表达量分别为3.3±0.9和6.9±1.5,明显高于对照组的2.4±0.6和4.3±1.5(LSD-t=23.58,16.55;P<0.05)。息肉组ABCG5和ABCG8 m RNA相对表达量分别为2.6±0.7和4.6±1.3,与对照组比较差异无统计学意义(LSD-t=1.18,0.73;P>0.05)。结论 ABCG5和ABCG8基因可能通过不同机制在胆囊胆固醇结石和胆固醇息肉的发生、发展中发挥作用。
文摘目的:探讨白细胞介素-8(IL-8)基因-251(A/T)位点单核苷酸多态性(SNP)与冠心病血瘀证遗传易感性的关系。方法:采用病例-对照研究,以聚合酶链反应-限制性片段长度多态性(PCR-RFLP)的方法,分析136例冠心病血瘀证和122例健康对照组IL-8-251A/T SNP分布情况。结果:位点基因型频率分布结果显示,IL-8-251A/T多态性位点各基因型频率和等位基因频率在CHD血瘀证组和对照组相比,差异有统计学意义(P<0.05)。IL-8-251多态的基因型分布频率在对照组人群中符合Hardy-Weinberg平衡(P=0.984),在有家族史的CHD血瘀证组中AT型基因提高其发病风险,其OR(95%CI)为4.350[1.108,17.073],P<0.05,其余未见有影响。结论:IL-8-251A/T SNP AT基因型可增加家族聚集性冠心病血瘀证的易感性。
基金supported by the Japan Society for the Promotion of Science KAKENHI(26460706 and 19K07849)a Japan-China Sasakawa Medical Fellowship(2017816)a State Scholarship Fund of the China Scholarship Council(201908500072)。
文摘Migraine is a common and debilitating headache disorder. Although its pathogenesis remains elusive,abnormal trigeminal and central nervous system activity is likely to play an important role. Transient receptor potential(TRP) channels, which transduce noxious stimuli into pain signals, are expressed in trigeminal ganglion neurons and brain regions closely associated with the pathophysiology of migraine. In the trigeminal ganglion,TRP channels co-localize with calcitonin gene-related peptide, a neuropeptide crucially implicated in migraine pathophysiology. Many preclinical and clinical data support the roles of TRP channels in migraine. In particular,activation of TRP cation channel V1 has been shown to regulate calcitonin gene-related peptide release from trigeminal nerves. Intriguingly, several effective antimigraine therapies, including botulinum neurotoxin type A, affect the functions of TRP cation channels. Here, we discuss currently available data regarding the roles of major TRP cation channels in the pathophysiology of migraine and the therapeutic applicability thereof.
文摘In recent years,significant breakthroughs have been made in the field of gene ther-apy.Adeno-associated virus(AAV)is one of the most promising gene therapy vectors and a powerful tool for delivering the gene of interest.Among the AAV vectors,AAV serotype 8(AAv8)has attracted much attention for its efficient and stable gene transfection into specific tissues.Currently,recombinant AAv8 has been widely used in gene therapy research on a va-riety of diseases,including genetic diseases,cancers,autoimmune diseases,and viral diseases.
