简介:摘要目的探讨前列腺癌、癌旁前列腺组织以及正常前列腺增生组织中Hedgehog(Hh)信号通路相关因子Shh、Ptch1、Gli1 mRNA的表达及意义。方法选择2017年2月至2019年2月本院收治的42例前列腺癌患者作为研究对象,设为观察组。所有患者均拟手术治疗,术中取癌组织与癌旁组织(距离病灶≥3 cm);选择同期手术治疗的39例前列腺增生患者的手术标本,设为对照组。利用免疫组化和qRT-PCR技术检测前列腺增生、前列腺癌和癌旁组织中Hh信号通路相关因子Shh、Ptch1和Gli1蛋白及mRNA的表达情况,分析比较Hh信号通路在前列腺增生、前列腺癌和癌旁组织中表达的差异及其机制。结果观察组的癌旁组织与对照组的Shh、Ptch1和Gli1蛋白阳性率比较,差异均无统计学意义(均P>0.05);观察组的癌组织中Shh、Ptch1和Gli1蛋白阳性率均高于对照组(均P<0.05)。观察组的癌旁组织与对照组的Shh、Ptch1和Gli1 mRNA表达水平比较,差异均无统计学意义(均P>0.05);观察组的癌组织中Shh、Ptch1和Gli1 mRNA表达水平均高于观察组的癌旁组织和对照组(均P<0.05);Spearman秩相关系数结果显示,Hh信号通路中Shh、Ptch1和Gli1与术前前列腺特异抗原(PSA)均无相关性(均P>0.05);与Gleason评分、临床分期、病理分级均呈正相关性(均P<0.05)。结论Hh信号通路中Shh、Ptch1和Gli1在前列腺癌患者中呈高表达,其在前列腺癌疾病的发生发展中可能起到一定的作用。
简介:目的探讨IndianHedgehog(Ihh)及其受体Smoothened(Smo)和Patched1(Ptch1)在渐进性咬合紊乱的大鼠髁突软骨-骨改建中的表达变化情况.方法选用24只8周龄雌性SD大鼠,实验组施以渐进性咬合紊乱,分别于20和24周后取材,苏木精-伊红染色观察组织形态变化,免疫组化及实时定量PCR方法检测Ihh、Smo和Ptch1的表达情况.结果髁突软骨后部20周实验组明显增厚(F=4.39,P=0.003),但24周组有所缓解.免疫组化检测24周实验组Ihh的表达水平高于对照组(F=3.78,P=0.02),而20周实验组Smo的表达水平高于对照组(F=5.16,P=0.04).实时定量PCR结果显示,20周实验组Ihh(F=7.80,P=0.012)和Smo(F=15.67,P=0.003)的mRNA水平均高于对照组;24周实验组Ihh的mRNA水平表达水平显著高于对照组(F=13.34,P=0.013),Ptch1的表达差异无统计学意义(F=1.34,P=2.13).结论渐进性咬合紊乱促进了大鼠髁突软骨中Ihh及其受体Smo的高表达.
简介:AbstractBackground:Chronic obstructive pulmonary disease (COPD) is a leading cause of morbidity and mortality worldwide. Genome-wide association studies in non-Asian population revealed a link between COPD and mutations in the PTCH1 gene encoding Patched1, a receptor in the Hedgehog signaling pathway important for lung morphogenesis and pulmonary function. The aim of this study was to investigate the association between PTCH1 polymorphisms and the COPD risk in the Chinese Han population.Methods:We performed a case-control study including 296 patients with COPD and 300 healthy individuals. Single-nucleotide polymorphisms in the PTCH1 gene were identified and genotyped based on the linkage disequilibrium analysis in all participants. Odds ratios (ORs) and 95% confidence intervals (95% CIs) were estimated using logistic regression analysis after adjustment for age, gender, and smoking.Results:In total, 28 single-nucleotide polymorphisms were identified in patients with COPD. Among them, "A" allele of rs28491365 (OR: 1.388, 95% CI: 1.055-1.827, P = 0.018), and "G" alleles of rs10512248 (OR: 1.299, 95% CI: 1.021-1.653, P = 0.033) and rs28705285 (OR: 1.359, 95% CI: 1.024-1.803, P = 0.033; respectively) were significantly associated with an increased COPD risk. Genetic model analysis revealed that the "T/T" genotype of rs34695652 was associated with a decreased COPD risk under the recessive model (OR: 0.490, 95% CI: 0.270-0.880, P = 0.010), whereas rs28504650/rs10512248 haplotype CG was significantly associated with an increased COPD risk after adjustment for age, gender, and smoking status (OR: 6.364, 95% CI: 1.220-33.292, P = 0.028).Conclusions:The study provides a new insight into the role of PTCH1 polymorphisms in the susceptibility to COPD in the Chinese Han population.
简介:摘要目的研究patched(Ptch)、β-联蛋白(β-catenin)在胰腺癌组织表达的意义,及其与临床病理参数的关系。方法选取胰腺癌标本34例、正常胰腺标本16例,应用免疫组化法检测Ptch和β-catenin的表达情况。结果Ptch在胰腺癌的高表达与病理分级(P=0.009)密切相关。β-catenin在胰腺癌中的异常高表达与淋巴结转移(P=0.030)、TNM分期(P=0.039)密切相关。β-catenin蛋白异常表达与Ptch蛋白阳性表达相关(r=0.443,P<0.05)。结论Ptch在胰腺癌分化中有重要作用。β-catenin在胰腺癌发生和进展中有重要作用,促进癌细胞转移和浸润。
简介:你知道不莱梅吗?噢——它是一个美丽快乐的地方。不莱梅在哪儿呢?噢——有梦想的地方就有不莱梅。没错儿,不莱梅这个地方,早就存在于“很久很久以前”的童话里了……