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Effects and mechanism of adenovirus-mediated phosphatase and tension homologue deleted on chromosome ten gene on collagen deposition in rat liver fibrosis 被引量:4
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作者 Shu-rui Xie Jun-yan An +4 位作者 Li-bo Zheng Xiao-Xia Huo Jian Guo David Shih Xiao-Lan Zhang 《World Journal of Gastroenterology》 SCIE CAS 2017年第32期5904-5912,共9页
AIM To evaluate the effects of phosphatase and tension homologue deleted on chromosome ten(PTEN) gene on collagen metabolism in hepatic fibrosis and the underlying mechanisms.METHODS rat primary hepatic stellate cells... AIM To evaluate the effects of phosphatase and tension homologue deleted on chromosome ten(PTEN) gene on collagen metabolism in hepatic fibrosis and the underlying mechanisms.METHODS rat primary hepatic stellate cells(HSCs) and human LX-2 cells were transfected with adenovirus containing c DNA constructs encoding wild-type PTEN(Ad-PTEN), PTEN mutant G129 E gene(Ad-G129E), and r NA interference constructs targeting the PTEN sequence PTEN short hairpin r NA to up-regulate and downregulate the expression of PTEN. HSCs were assayed using fluorescent microscopy, real-time polymerase chain reaction, and western blotting. Moreover, a CCl_4-induced rat hepatic fibrosis model was established to investigate the in vivo effects. Hematoxylin and eosin, and Masson's trichrome were used to assess the histological changes. The expression of collagen Ⅰ and Ⅲ was assessed using immunohistochemistry and western blot analysis.RESULTS Elevated expression of PTEN gene reduced serum levels of alanine transaminase and aspartate transaminase, decreased collagen deposition in the liver, and reduced hepatocyte necrosis. In contrast, knockdown of PTEN expression had an opposite effect, such as increased collagen deposition in the liver, and was molecularly characterized by the increased expression of matrix metalloproteinase(MMP)-13(P < 0.01) and MMP-2(P < 0.01), as well as decreased expression of the tissue inhibitor of metalloproteinase(TIMP)-1(P < 0.01) and TIMP-2(P < 0.01).CONCLUSION These data indicated that gene therapy using recombinant adenovirus encoding PTEN might be a novel way of treating hepatic fibrosis. 展开更多
关键词 Collagen metabolism Hepatic stellate cells phosphatase and tension homologue deleted on chromosome ten pten Gene therapy Hepatic fibrosis
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Rapid construction of phosphatase and tensin homolog-deleted on chromosome ten gene recombinant adenovirus using the AdEasy system
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作者 Yongqiong Wei Lixue Chen +1 位作者 Zhaofang Zeng Chongbiao Shen 《Neural Regeneration Research》 SCIE CAS CSCD 2010年第15期1166-1170,共5页
Recent studies have shown that phosphatase and tensin homolog-deleted on chromosome ten (PTEN) gene plays an important role in ischemic brain damage and synaptic plasticity. The AdEasy system, which has been widely ... Recent studies have shown that phosphatase and tensin homolog-deleted on chromosome ten (PTEN) gene plays an important role in ischemic brain damage and synaptic plasticity. The AdEasy system, which has been widely used, greatly simplifies preparation of recombinant adenovirus. Therefore, recombinant defective adenovirus vector carrying human PTEN tumor suppressor gene (Ad-PTEN) was constructed using the AdEasy-1 system and was transfected into HEK293 cells for packaging and amplification. Infection efficiency and expression intensity were observed in primary cultured rat hippocampal neurons infected with Ad-PTEN in vitro. Results revealed a cytopathic effect in green fluorescent protein expression, which increased with prolonged time. After three cycles of amplification, the adenovirus titer was increased to an adequate titer for infecting hippocampal neurons. The entire process typically requires 4-5 weeks for completion. Results suggested that recombinant defective adenovirus vector carrying the PTEN gene was successfully and rapidly constructed using the AdEasy system. 展开更多
关键词 phosphatase and tensin homolog-deleted on chromosome ten recombinant adenovirus AdEasy system vector construction nerve factors neural regeneration
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The Effect of Phosphatase and Tension Homolog (PTEN) on Homeostasis of the Periodontal Ligament
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作者 Wonjun Choi Won Hee Lim 《Open Journal of Stomatology》 2022年第3期87-95,共9页
Aim: Phosphatase and tension homolog (PTEN) has been known to maintain homeostatic control over the body. The roles of PTEN in periodontal complex are unknown. The purpose of this study was to investigate the role of ... Aim: Phosphatase and tension homolog (PTEN) has been known to maintain homeostatic control over the body. The roles of PTEN in periodontal complex are unknown. The purpose of this study was to investigate the role of PTEN in periodontal structures by removing PTEN from osteoblasts and odontoblasts. Materials and Methods: The function of this endogenous PTEN was evaluated by conditionally eliminating the PTEN gene using an Osteocalcin (OCN) Cre driver. The resulting OCN-Cre<sup>tg/+</sup>;Pten<sup>fl/fl </sup>mice were examined using micro-CT and histology, immunohistochemical analyses for osteogenic markers in the periodontal ligament (PDL) and bone turnover. Results: Bone apposition was increased around molar areas accompanying deposition of cementum in micro CT. Osteoprogenitor markers except for OCN in the PDL maintained their expression in both wild-type and OCN-Cre<sup>tg/+</sup>;Pten<sup>fl/fl</sup> mice. Both alkaline phosphatase activity and osteoclast activity increased in the PDL of OCN-Cre<sup>tg/+</sup>;Pten<sup>fl/fl</sup> mice compared to those in wild-type mice. Conclusions: Loss of PTEN causes an increase of bone turnover in the periodontal surrounding tissues with an increase of cementogenesis. These findings underscore the effect of PTEN on homeostasis of the periodontal ligament. 展开更多
关键词 phosphatase and tension homolog (pten) Periodontal Ligament (PDL)
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Phosphatase and tensin homology deleted in chromosome 10,hypoxia-inducible factor-1 alpha gene expression in colorectal adenoma and adenocarcinoma and their relation to vascular endothelial growth factor protein expression
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作者 钱群 《外科研究与新技术》 2005年第3期165-166,共2页
To examine phosphatase and tensin homology deleted in chromosome 10 (PTEN),hypoxia-inducible factor-1 alpha (HIF-1 alpha) gene expressions and their relation to vascular endothelial growth factor(VEGF) protein express... To examine phosphatase and tensin homology deleted in chromosome 10 (PTEN),hypoxia-inducible factor-1 alpha (HIF-1 alpha) gene expressions and their relation to vascular endothelial growth factor(VEGF) protein expression in the patients with human colorectal adenomas and adenocarcinomas.Methods The expression of PTEN,HIF-1 alpha gene was detected by using in situ hybridization,and the VEGF expression levels by immunohistochemistry in colorectal adenomas and primary colorectal adenocarcinoma.Results Strong expression of HIF-1 alpha was detectable in the majority of colorectal dadenocarcinoma,particularly surrounding areas of necrosis in adenocarcinoma.PTEN,HIF-1 alpha mRNA and VEGF protein were positive in 51.6%,67.7% and 59.7% respectively in 62 cases of adenocarcinomas,and 77.8%,44.4% and 33.3% respectively in 18 cases of adenomas.The positive rate of VEGF was higher in the patients with colorectal adenocarcinomas than that in those with adenomas,whereas that of PTEN mRNA was contrary.HIF-1 mRNA expression was correlated significantly with lymph node metastasis,liver metastasis,Duke’s stage and recurrence.During colorectal tumor progression,the expression of HIF-1 alpha mRNA was positively correlated with the VEGF protein expression (χ2= 4.751 ,P<0.05),but negatively with the PTEN mRNA expression(χ2=21.84,P<0.01).Conclusion The absence or low expression of PTEN and the increased levels of HIF-1α and VEGF may paly an important role in carcinogenesis and progression of colorectal carcinoma.These results suggest that VEGF upregulated by HIF-1 alpha gene may be involved in angiogenesis of colorectal adenocarcinoma.4 refs,1 tab. 展开更多
关键词 phosphatase and tensin homology deleted in chromosome 10 hypoxia-inducible factor-1 alpha gene expression in colorectal adenoma and adenocarcinoma and their relation to vascular endothelial growth factor protein expression
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PTEN、CA125、sVEGFR1、NGAL在子宫内膜癌患者血清中的表达及与病理特征的关系
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作者 王艳 张利玲 +2 位作者 张静 罗利花 刘风菊 《河北医药》 CAS 2024年第14期2113-2116,2121,共5页
目的 探讨第10号染色体缺失的磷酸酶及张力蛋白同源基因(PTEN)、糖类抗原125(CA125)、可溶性血管内皮生长因子受体-1(sVEGFR1)、中性粒细胞明胶酶相关脂质载运蛋白(NGAL)在子宫内膜癌(EC)患者血清中的表达及与病理特征的关系。方法 选取... 目的 探讨第10号染色体缺失的磷酸酶及张力蛋白同源基因(PTEN)、糖类抗原125(CA125)、可溶性血管内皮生长因子受体-1(sVEGFR1)、中性粒细胞明胶酶相关脂质载运蛋白(NGAL)在子宫内膜癌(EC)患者血清中的表达及与病理特征的关系。方法 选取2019年1月至2021年6月于在邯郸市第一医院行全子宫切除术并经病理诊断的120例EC患者为研究组,选择同期80例良性病变子宫内膜患者为对照组,用酶联免疫吸附法检测并比较2组患者血清PTEN、CA125、sVEGFR1、NGAL水平,收集2组临床病理资料,分析血清PTEN、CA125、sVEGFR1、NGAL与研究组患者病理特征的关系。结果 研究组血清CA125、NGAL水平高于对照组,血清PTEN、sVEGFR1水平低于对照组(P<0.05)。分化程度越低血清CA125、NGAL水平越高,血清PTEN、sVEGFR1水平越低(P<0.05);临床分期Ⅲ~Ⅳ期患者血清PTEN高于Ⅰ~Ⅱ期(P<0.05);临床分期Ⅲ~Ⅳ期、有淋巴结转移、浸润深度≥50%患者血清CA125、NGAL水平升高,血清sVEGFR1水平降低(P<0.05)。血清PTEN与临床分期呈负相关,与分化程度呈正相关(P<0.05);血清CA125、NGAL与临床分期、淋巴结转移、浸润深度呈正相关,与分化程度呈负相关(P<0.05);血清sVEGFR1与临床分期、淋巴结转移、浸润深度呈负相关,与分化程度呈正相关(P<0.05)。结论 CA125、NGAL在EC患者血清中呈高表达,PTEN、sVEGFR1呈低表达,均与EC患者病理特征有一定相关性,可作为EC早期诊断与疾病进展的潜在生物学标志物。 展开更多
关键词 子宫内膜癌 病理特征 第10号染色体缺失的磷酸酶及张力蛋白同源基因 糖类抗原125 可溶性血管内皮生长因子受体-1 中性粒细胞明胶酶相关脂质载运蛋白
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自身免疫性肝病患者血清PRDX1、PTEN水平及其与肝功能、疾病活动性的关系
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作者 李青 周路艳 +1 位作者 谭智 刘灵芝 《国际检验医学杂志》 CAS 2024年第14期1682-1686,共5页
目的探讨过氧化物氧化还原蛋白(PRDX)1、第10号染色体缺失性磷酸酶-张力蛋白同源物基因(PTEN)水平与自身免疫性肝病患者肝功能、疾病活动性的关系。方法选取2021年1月至2022年12月该院收治的83例自身免疫性肝病患者作为研究对象,根据入... 目的探讨过氧化物氧化还原蛋白(PRDX)1、第10号染色体缺失性磷酸酶-张力蛋白同源物基因(PTEN)水平与自身免疫性肝病患者肝功能、疾病活动性的关系。方法选取2021年1月至2022年12月该院收治的83例自身免疫性肝病患者作为研究对象,根据入院时疾病活动性分为活动期组(37例)、缓解期组(46例),统计两组临床资料及入院时血清PRDX1、PTEN水平,同时对患者进行肝功能Child-Pugh分级并分组。选取同期体检的100例健康志愿者作为对照组。采用多因素Logistic逐步回归分析自身免疫性肝病患者疾病活动性的影响因素,采用受试者工作特征(ROC)曲线及曲线下面积(AUC)分析治疗后血清PRDX1、PTEN水平对自身免疫性肝病患者疾病活动性的评估价值。结果与A级组比较,B级组血清PRDX1、PTEN水平差异无统计学意义(P>0.05),而C级组血清PRDX1水平升高,PTEN水平降低(P<0.05);与B级组相比,C级组血清PRDX1水平升高、PTEN水平降低(P<0.05);与对照组比较,缓解期组血清PRDX1、PTEN水平差异无统计学意义(P>0.05),而活动期组血清PRDX1水平升高、PTEN水平降低(P<0.05);与缓解期组相比,活动期组血清PRDX1水平升高、PTEN水平降低(P<0.05)。血清PRDX1、PTEN判断自身免疫性肝病患者疾病活动性的AUC分别为0.750、0.854,二者联合预测的AUC为0.916。活动期组患者肝区不适、肝硬化占比高于缓解期组(P<0.05);多因素Logistic逐步回归分析显示,肝区不适(OR=3.487,95%CI:1.534~7.927),肝硬化(OR=4.289,95%CI:1.744~10.545),PRDX1≥5.22 ng/mL(OR=5.068,95%CI:1.951~13.164),PTEN≤0.31 pg/mL(OR=5.387,95%CI:2.099~13.829)是影响自身免疫性肝病疾病活动性的危险因素(P<0.05)。结论血清PRDX1水平升高、PTEN水平降低与自身免疫性肝病患者肝功能、疾病活动性密切相关,二者对自身免疫性肝病患者具有一定临床评估价值。 展开更多
关键词 自身免疫性肝病 过氧化物氧化还原蛋白1 第10号染色体缺失性磷酸酶-张力蛋白同源物基因 肝功能 疾病活动性
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miR-181b-5p靶向PTEN介导PI3K/Akt通路对弥漫大B细胞淋巴瘤增殖和侵袭的影响
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作者 张振江 李晓宁 《实用癌症杂志》 2024年第11期1762-1767,共6页
目的探讨微小RNA(miR)-181b-5p靶向调控10号染色体上缺失的磷酸酶及张力蛋白同源基因(PTEN)对弥漫大B细胞淋巴瘤细胞增殖和侵袭的影响及其机制。方法第3代对数期SU-DHL-4细胞随机分为control组、mimic NC组、mimic组、inhibitor NC组和i... 目的探讨微小RNA(miR)-181b-5p靶向调控10号染色体上缺失的磷酸酶及张力蛋白同源基因(PTEN)对弥漫大B细胞淋巴瘤细胞增殖和侵袭的影响及其机制。方法第3代对数期SU-DHL-4细胞随机分为control组、mimic NC组、mimic组、inhibitor NC组和inhibitor组,qRT-PCR法检测各组miR-181b-5p和PTEN基因表达量,CCK-8法检测细胞增殖率,Transwell实验检测迁移和侵袭细胞数,双荧光素酶报告基因检测miR-181b-5p和PTEN之间的靶向关系,蛋白印迹法检测PTEN、磷酸化磷脂酰肌醇3-激酶(p-PI3K)和磷酸化蛋白激酶B(p-Akt)蛋白表达量。结果与mimic NC组比较,mimic组miR-181b-5p基因表达量以及p-PI3K和p-Akt蛋白表达量升高,PTEN基因和蛋白表达量降低,细胞增殖率及迁移和侵袭率升高(P<0.05);与inhibitor NC组比较,inhibitor组miR-181b-5p基因表达量以及p-PI3K和p-Akt蛋白表达量降低,PTEN基因和蛋白表达量升高,细胞增殖率及迁移和侵袭率降低(P<0.05)。从机制上看,miR-181b-5p靶向调控PTEN。结论下调miR-181b-5p可抑制弥漫大B细胞淋巴瘤细胞增殖、迁移和侵袭,其可能是通过靶向调控PTEN激活PI3K/Akt信号通路发挥作用。 展开更多
关键词 弥漫大B细胞淋巴瘤 增殖 迁移 侵袭 10号染色体上缺失的磷酸酶及张力蛋白同源基因
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Hepatoprotective effects of Xiaoyao San formula on hepatic steatosis and inflammation via regulating the sex hormones metabolism 被引量:3
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作者 Xiao-Li Mei Shu-Yi Wu +4 位作者 Si-Lan Wu Xiao-Lin Luo Si-Xing Huang Rui Liu Zhe Qiang 《World Journal of Hepatology》 2024年第7期1051-1066,共16页
BACKGROUND The modified Xiaoyao San(MXS)formula is an adjuvant drug recommended by the National Health Commission of China for the treatment of liver cancer,which has the effect of preventing postoperative recurrence ... BACKGROUND The modified Xiaoyao San(MXS)formula is an adjuvant drug recommended by the National Health Commission of China for the treatment of liver cancer,which has the effect of preventing postoperative recurrence and metastasis of hepatocellular carcinoma and prolonging patient survival.However,the molecular mechanisms underlying that remain unclear.AIM To investigate the role and mechanisms of MXS in ameliorating hepatic injury,steatosis and inflammation.METHODS A choline-deficient/high-fat diet-induced rat nonalcoholic steatohepatitis(NASH)model was used to examine the effects of MXS on lipid accumulation in primary hepatocytes.Liver tissues were collected for western blotting and immunohisto chemistry(IHC)assays.Lipid accumulation and hepatic fibrosis were detected using oil red staining and Sirius red staining.The serum samples were collected for biochemical assays and NMR-based metabonomics analysis.The inflammation/lipid metabolism-related signaling and regulators in liver tissues were also detected to reveal the molecular mechanisms of MXS against NASH.RESULTS MXS showed a significant decrease in lipid accumulation and inflammatory response in hepatocytes under metabolic stress.The western blotting and IHC results indicated that MXS activated AMPK pathway but inhibited the expression of key regulators related to lipid accumulation,inflammation and hepatic fibrosis in the pathogenesis of NASH.The metabonomics analysis systemically indicated that the arachidonic acid metabolism and steroid hormone synthesis are the two main target metabolic pathways for MXS to ameliorate liver inflammation and hepatic steatosis.Mechanistically,we found that MXS protected against NASH by attenuating the sex hormone-related metabolism,especially the metabolism of male hormones.CONCLUSION MXS ameliorates inflammation and hepatic steatosis of NASH by inhibiting the metabolism of male hormones.Targeting male hormone related metabolic pathways may be the potential therapeutic approach for NASH. 展开更多
关键词 Hepatic steatosis INFLAMMATIon Sex hormone metabolism Male hormone phosphatase and tensin homolog deleted on chromosome ten
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PTEN基因在鸡肝脏中的发育性变化
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作者 刘一凡 刘高怡 +2 位作者 李雅倩 马金友 余燕 《黑龙江畜牧兽医》 CAS 北大核心 2024年第13期33-36,41,111,共6页
为了研究抑癌基因PTEN在家禽肝脏发育过程中的表达变化,试验选取50枚海兰褐受精蛋,在孵化的第15,18,20天[E15、E18、E20(啄壳为准)]和出壳后第1,5,10,15天(D1、D5、D10、D15)各取6枚(只)鸡胚/雏鸡,用乙醚麻醉后颈椎脱臼致死,取肝脏并提... 为了研究抑癌基因PTEN在家禽肝脏发育过程中的表达变化,试验选取50枚海兰褐受精蛋,在孵化的第15,18,20天[E15、E18、E20(啄壳为准)]和出壳后第1,5,10,15天(D1、D5、D10、D15)各取6枚(只)鸡胚/雏鸡,用乙醚麻醉后颈椎脱臼致死,取肝脏并提取基因组,采用实时荧光定量PCR和免疫组织化学方法对PTEN基因在家禽肝脏发育过程中的表达变化进行研究。结果表明:PTEN基因相对表达量随着胚龄/日龄的增长而增加,但在啄壳当天,PTEN基因相对表达量会暂时下降。PTEN蛋白在出壳前期主要分布在部分肝血窦内皮细胞的细胞核和肝细胞的细胞核中,在细胞质中基本无表达;在出壳后,PTEN蛋白在肝细胞核和细胞浆内均有分布。E20,免疫阳性PTEN蛋白的表达量下降,和E15水平相当(P>0.05),在其他胚龄/日龄时均显著高于E15(P<0.05)。肝细胞核PTEN蛋白免疫阳性率在E18显著高于E15(P<0.05);在E20和D15,肝细胞核PTEN蛋白免疫阳性率急剧下降,均显著低于E18(P<0.05);在D5~D15,肝细胞核PTEN蛋白免疫阳性率逐渐增加,均显著高于E15(P<0.05)。PTEN基因的这种表达模式和鸡胚/雏鸡肝脏的发育模式基本一致,说明家禽PTEN基因在肝脏发育和代谢中发挥重要作用。 展开更多
关键词 肝脏 人第10号染色体缺失的磷酸酶与张力蛋白同源物 雏鸡 鸡胚 胚胎发育
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乳腺癌组织中PTEN、MMP-2、AKT的表达及其与临床病理特征的相关性
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作者 邓亚萍 荆海红 吴瑜 《实用癌症杂志》 2024年第10期1611-1613,共3页
目的探讨乳腺癌组织内第10号染色体缺失的磷酸酶和张力蛋白同源基因(PTEN)、基质金属蛋白酶-2(MMP-2)、蛋白激酶B(AKT)的表达及其与患者临床病理特征间的关系。方法选取63例乳腺癌患者,收集其癌组织与癌旁正常组织(距离病灶边缘≥3 cm)... 目的探讨乳腺癌组织内第10号染色体缺失的磷酸酶和张力蛋白同源基因(PTEN)、基质金属蛋白酶-2(MMP-2)、蛋白激酶B(AKT)的表达及其与患者临床病理特征间的关系。方法选取63例乳腺癌患者,收集其癌组织与癌旁正常组织(距离病灶边缘≥3 cm),以免疫组织化学法测定组织内PTEN、MMP-2、AKT表达。收集患者的年龄、性别等资料,分析PTEN、MMP-2、AKT表达与患者临床病理特征间的关系。结果癌组织中的MMP-2、AKT阳性表达率高于癌旁组织,PTEN阳性表达率低于癌旁组织,有统计学差异(P<0.05)。PTEN、MMP-2、AKT表达与乳腺癌患者的年龄、肿瘤部位无关(P>0.05);与患者肿瘤的组织学分级、淋巴结转移有关(P<0.05)。结论PTEN、MMP-2、AKT在乳腺癌组织内呈异常表达,其表达与肿瘤的组织学分级、淋巴结转移有关。 展开更多
关键词 乳腺癌 第10号染色体缺失的磷酸酶和张力蛋白同源基因 基质金属蛋白酶-2 蛋白激酶B 临床病理特征
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血清miR-93-5p、PTEN表达水平评估川崎病患儿冠状动脉损伤的价值
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作者 贾丽娟 吕爱婷 王芳洁 《海南医学》 CAS 2024年第18期2644-2648,共5页
目的分析血清微小RNA(miR)-93-5p、第10号染色体上缺失的磷酸酶和紧张素同源物(PTEN)表达水平在评价川崎病(KD)患儿冠状动脉损伤(CAL)中的应用价值。方法回顾性分析2021年10月至2023年12月郑州大学附属儿童医院心血管内科收治的164例KD... 目的分析血清微小RNA(miR)-93-5p、第10号染色体上缺失的磷酸酶和紧张素同源物(PTEN)表达水平在评价川崎病(KD)患儿冠状动脉损伤(CAL)中的应用价值。方法回顾性分析2021年10月至2023年12月郑州大学附属儿童医院心血管内科收治的164例KD患儿的临床诊治资料,依据冠状动脉超声检查结果分为KD+CAL组56例和KD组108例。比较两组患儿的一般资料、血清miR-93-5p和PTEN水平,采用Pearson相关分析法分析血清miR-93-5p与PTEN水平的相关性,采用受试者工作特征(ROC)曲线分析血清miR-93-5p、PTEN水平对KD患儿CAL的诊断价值,采用多因素Logistic回归法分析KD患儿发生CAL的影响因素。结果KD+CAL组患儿血小板计数、发热持续时间、静脉注射用免疫球蛋白使用时间、降钙素原(PCT)、C反应蛋白(CRP)及血清miR-93-5p水平分别为(430.33±86.42)×10^(9)/L、(9.84±1.96)d、(9.67±1.92)d、(0.68±0.13)μg/L、(82.46±16.24)mg/L、1.51±0.36,明显高于KD组的(351.61±70.18)×10^(9)/L、(8.11±1.07)d、(6.53±1.18)d、(0.32±0.06)μg/L、(65.67±13.25)mg/L、1.02±0.28,血清PTEN水平为(2.32±0.41)ng/mL,明显低于KD组的(3.03±0.61)ng/mL,差异均有统计学意义(P<0.05);经Pearson相关分析法分析结果显示,KD+CAL组患儿血清miR-93-5p与PTEN呈负相关(r=-0.522,P<0.05);经ROC曲线分析结果显示,血清miR-93-5p、PTEN水平联合诊断KD患儿CAL的曲线下面积(AUC)为0.917(95%CI:0.863~0.954),明显高于miR-93-5p单独诊断的AUC 0.837(95%CI:0.771~0.890)、PTEN单独诊断的AUC 0.847(95%CI:0.783~0.899),差异均有统计学意义(P<0.05);经Logistic回归法分析结果显示,血小板计数、发热持续时间、静脉注射用免疫球蛋白使用时间及血清miR-93-5p、PTEN水平均是KD患儿发生CAL的影响因素(P<0.05)。结论KD合并CAL患儿血清miR-93-5p水平上调,血清PTEN水平下调,检测其水平变化可用于疾病的早期诊断。 展开更多
关键词 川崎病 冠状动脉损伤 微小RNA-93-5p 第10号染色体上缺失的磷酸酶和紧张素同源物 价值
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急性脑梗死患者血清CXCL1、PTEN mRNA水平与病情严重程度及预后的关系
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作者 曹君冬 杜宇平 《国际检验医学杂志》 CAS 2024年第6期722-726,共5页
目的探讨急性脑梗死患者血清CXC趋化因子配体1(CXCL1)、第10染色体同源丢失性磷酸酶张力蛋白基因(PTEN)mRNA水平与病情严重程度及预后的关系。方法将2022年3月至2023年3月该院收治的102例急性脑梗死患者纳入研究作为试验组,另选取同期... 目的探讨急性脑梗死患者血清CXC趋化因子配体1(CXCL1)、第10染色体同源丢失性磷酸酶张力蛋白基因(PTEN)mRNA水平与病情严重程度及预后的关系。方法将2022年3月至2023年3月该院收治的102例急性脑梗死患者纳入研究作为试验组,另选取同期于该院进行体检的85例健康者作为对照组。收集纳入研究者的空腹静脉血血清标本。采用酶联免疫吸附法检测血清CXCL1水平。采用实时荧光定量PCR(qPCR)检测血清PTEN mRNA相对表达水平(下称水平)。根据美国国立卫生研究院脑卒中量表(NIHSS)评分将试验组患者分神经功能缺损程度不同的3组(重症组、中度组、轻度组),比较3组血清CXCL1、PTEN mRNA水平。根据计算机断层扫描(CT)或磁共振成像(MRI)评估脑梗死体积,将试验组患者分为小型梗死组、中型梗死组和大型梗死组,比较3组血清CXCL1、PTEN mRNA水平。根据改良Rankin量表(mRS)将试验组患者分为预后良好组和预后不良组,比较2组患者血清CXCL1、PTEN mRNA水平。采用Pearson相关分析急性脑梗死患者血清CXCL1、PTEN mRNA水平的相关性。采用多因素Logistics回归分析影响急性脑梗死患者预后的因素。结果试验组有糖尿病史、高血压史者占比及血清CXCL1、PTEN mRNA水平均高于对照组,差异均有统计学意义(P<0.05)。随着神经功能缺损程度的增加,血清CXCL1水平、PTEN mRNA水平均增加,重症组、中度组、轻度组间比较差异均有统计学意义(P<0.05)。随着梗死面积增加,血清中CXCL1、PTEN mRNA水平均增加,小型梗死组、中型梗死组和大型梗死组间比较差异均有统计学意义(P<0.05)。预后不良组有糖尿病史者占比、有高血压史者占比及血清CXCL1、PTEN mRNA水平均高于预后良好组(P<0.05)。急性脑梗死患者血清CXCL1水平和PTEN mRNA水平呈正相关(r=0.479,P<0.001)。血清CXCL1、PTEN mRNA水平及糖尿病史、高血压史均为急性脑梗死患者预后的影响因素(P<0.05)。结论急性脑梗死患者血清CXCL1、PTEN mRNA水平升高,可用于评估患者病情程度和预后。 展开更多
关键词 急性脑梗死 CXC趋化因子配体1 第10染色体同源丢失性磷酸酶张力蛋白基因 预后
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PTEN and Ki67 expression is associated with clinicopathologic features of non-small cell lung cancer 被引量:18
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作者 Yong Ji Mingfeng Zheng +2 位作者 Shugao Ye Jingyu Chen Yijiang Chen 《The Journal of Biomedical Research》 CAS 2014年第6期462-467,共6页
Phosphatase and tensin homolog deleted on chromosome 10(PTEN) and the proliferating antigen Ki67 have been widely studied in several tumors.However,their role as indicator in non-small cell lung cancer(NSCLC)remai... Phosphatase and tensin homolog deleted on chromosome 10(PTEN) and the proliferating antigen Ki67 have been widely studied in several tumors.However,their role as indicator in non-small cell lung cancer(NSCLC)remains unknown.Here,we investigated the expression of PTEN and Ki67 in NSCLC tissues and paired normal lung tissues to identify whether these proteins are associated with lung cancer development and survival.Immunohistochemistry for PTEN and Ki67 was performed on 67 lung cancer tissues and 41 paired adjacent normal lung tissues to detect the expression of these two proteins.The expression of PTEN in NSCLC tissues(32.8%) was significantly lower than that in normal tissues(82.9%,P 〈 0.05).In contrast,the expression of Ki67 in NSCLC tissues(76.1%) was significantly higher than that in normal tissues(27.3%,P 〈 0.05).Expression of both PTEN and Ki67 were strongly associated with tumor histology,clinical stage,lymph node metastasis,differentiation and4-year postoperative survival rate(P 〈 0.05).However,PTEN expression was negatively correlated with Ki67 expression(r =-0.279,P 〈 0.05).In conclusion,low PTEN expression and Ki67 overexpression are associated with malignant invasion and lymph node metastasis of NSCLC.These proteins may serve as diagnostic and prognostic biomarkers of NSCLC. 展开更多
关键词 non-small cell lung cancer(NSCLC) KI67 phosphatase and tensin homolog deleted on chromosome 10(pten IMMUNOHISTOCHEMISTRY lymph node prognosis
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Upregulated DJ-1 Promotes Renal Tubular EMT by Suppressing Cytoplasmic PTEN Expression and Akt Activation 被引量:8
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作者 姚颖 位红兰 +8 位作者 刘丽丽 刘琳 白寿军 李彩霞 罗云 曾锐 韩敏 葛树旺 徐钢 《Journal of Huazhong University of Science and Technology(Medical Sciences)》 SCIE CAS 2011年第4期469-475,共7页
Recently,phosphatase and tensin homolog deleted on chromosome 10(PTEN) is suggested as a new agent in the fighting against fibrogenesis.In tumor,DJ-1 is identified as a negative regulator of PTEN.But the expression ... Recently,phosphatase and tensin homolog deleted on chromosome 10(PTEN) is suggested as a new agent in the fighting against fibrogenesis.In tumor,DJ-1 is identified as a negative regulator of PTEN.But the expression of DJ-1 and the regulation of PTEN in fibrosis are unclear.Renal fibrosis was induced in 5/6 subtotal nephrectomy rat model.Human proximal tubular epithelial cells(HKC) were treated with transforming growth factor-beta 1(TGF-β1),or transfected with DJ-1 or PTEN.Confocal microscope was used to investigate the localization of DJ-1 and PTEN.The selective phosphoinositide-3 kinase(PI3K) inhibitor,LY294002,was administered to inhibit PI3K pathway.The DJ-1 and PTEN expression,markers of epithelial-mesenchymal transition(EMT) and Akt phosphorylation were measured by RT-PCR,Western blotting or immunocytochemistry.In vitro,after HKC cells were stimulated with 10 ng/mL TGF-β1 for 72 h,the expression of DJ-1 was increased,and that of PTEN was decreased.In vivo,the same results were identified in 5/6-nephrectomized rats.In normal HKC cells,most of DJ-1 protein localized in cytoplasm,and little in nucleus.TGF-β1 upregulated DJ-1 expression in both cytoplasma and nuclei.In contrary,TGF-β1 emptied cytoplasmic PTEN protein into nucleus.Overexpression of DJ-1 decreased the expression of PTEN,promoted the activation of Akt and the expression of vimentin,and also led to the loss of cytoplasmic PTEN.Contrarily,overexpression of PTEN protected HKC cells from TGF-β1-induced EMT.In conclusion,DJ-1 is upregulated in renal fibrosis and DJ-1 mediates EMT by suppressing cytoplasmic PTEN expression and Akt activation. 展开更多
关键词 transforming growth factor-beta 1 DJ-1 phosphatase and tensin homolog deleted on chromosome 10 Akt epithelial-mesenchymal transition
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青蒿琥酯通过调节miR-21/PTEN/AKT轴对甲状腺癌细胞增殖、迁移及凋亡的影响
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作者 余江涛 段鑫鑫 霍青峰 《实用癌症杂志》 2023年第11期1754-1759,共6页
目的 观察青蒿琥酯对甲状腺癌细胞增殖、迁移及凋亡的影响及微小RNA(miRNA)-21在该过程中的作用,并探讨相关机制。方法 取TPC-1细胞,将miR-21过表达质粒miR-21 mimics转染至TPC-1细胞,随机分为mimics组、联合组,mimics组常规培养,联合... 目的 观察青蒿琥酯对甲状腺癌细胞增殖、迁移及凋亡的影响及微小RNA(miRNA)-21在该过程中的作用,并探讨相关机制。方法 取TPC-1细胞,将miR-21过表达质粒miR-21 mimics转染至TPC-1细胞,随机分为mimics组、联合组,mimics组常规培养,联合组加入青蒿琥酯(320μg/mL)。另取TPC-1细胞分为空白组、青蒿琥酯组,空白组常规培养,青蒿琥酯组加入青蒿琥酯(320μg/mL)。实时荧光定量聚合酶链反应(Real-Time quantitative polymerase chain reaction,qRT-PCR)法检测细胞miR-21表达量;MTT法检测细胞增殖能力;流式细胞术检测细胞凋亡率;划痕实验检测细胞迁移能力;双荧光素酶实验验证miR-21与第十染色体同源丢失性磷酸酶和张力蛋白基因(PTEN)的靶向关系;免疫印迹法检测细胞PTEN、蛋白激酶B(AKT)、p-AKT蛋白表达。结果 与空白组比较,青蒿琥酯组miR-21表达量,24、48、72 h吸光度值,迁移率,p-AKT/AKT降低,凋亡率、PTEN蛋白表达量升高(P<0.05),mimics组miR-21表达量,24、48、72 h吸光度值,迁移率,p-AKT/AKT升高,凋亡率、PTEN蛋白表达量降低(P<0.05);与青蒿琥酯组比较,联合组miR-21表达量,24、48、72 h吸光度值,迁移率,p-AKT/AKT升高,凋亡率、PTEN蛋白表达量降低(P<0.05);与mimics组比较,联合组miR-21表达量,24、48、72 h吸光度值,迁移率,p-AKT/AKT降低,凋亡率、PTEN蛋白表达量升高(P<0.05);双荧光素酶结果显示,PTEN是miR-21的靶基因。结论 青蒿琥酯可抑制甲状腺癌细胞增殖、迁移,并促进其凋亡,其作用机制可能与下调miR-21进一步靶向调控下游PTEN/AKT轴表达有关。 展开更多
关键词 青蒿琥酯 微小RNA-21 第十染色体同源丢失性磷酸酶和张力蛋白基因 甲状腺癌 增殖 迁移 凋亡
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miR-21通过PTEN/AKT/TFEB通路对心肌梗死后心力衰竭大鼠心肌纤维化的影响 被引量:2
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作者 郭俊玲 吴曼 +1 位作者 李颖 陈智 《中西医结合心脑血管病杂志》 2023年第15期2766-2772,共7页
目的:探讨microRNA-21(miR-21)对心肌梗死诱导的心力衰竭大鼠心肌纤维化的影响机制。方法:SD大鼠采用结扎左冠状动脉前降支法建立心肌梗死模型,造模成功后分为模型组、重组腺相关病毒血清型9(rAAV9)-NC组、rAAV9-anti-miR-21组、rAAV9-a... 目的:探讨microRNA-21(miR-21)对心肌梗死诱导的心力衰竭大鼠心肌纤维化的影响机制。方法:SD大鼠采用结扎左冠状动脉前降支法建立心肌梗死模型,造模成功后分为模型组、重组腺相关病毒血清型9(rAAV9)-NC组、rAAV9-anti-miR-21组、rAAV9-anti-miR-21+BpV组,每组12只;另取12只大鼠作为假手术组。rAAV9-anti-miR-21组、rAAV9-NC组分别尾静脉注射含miR-21 antagomir及其阴性对照的腺病毒进行干预,rAAV9-anti-miR-21+BpV组大鼠尾静脉注射rAAV9-anti-miR-21的同时以0.2 mg/kg腹腔注射磷酸酶-张力蛋白同源物基因(PTEN)抑制剂BpV,假手术组和模型组经腹腔和尾静脉注射等体积的生理盐水,每日1次,连续干预2周。经胸超声心动图检测大鼠左心室舒张末期内径(LVEDD)和左心室收缩末期内径(LVESD),并计算左心室射血分数(LVEF)和短轴缩短分数(FS);酶联免疫吸附法(ELISA)检测血清氨基末端脑钠尿肽前体(NT-proBNP)水平;取左心室并称重,计算左心室质量指数(LVMI);马松(Masson)染色观察心肌组织病理变化;实时荧光定量聚合酶链式反应(RT-qPCR)检测左心室组织miR-21、PTEN、CollagenⅠ和CollagenⅢ表达水平;透射电子显微镜观察心肌组织自噬情况;蛋白免疫印迹法(Western Blot)检测左心室组织自噬和PTEN/蛋白激酶B(AKT)/转录因子EB(TFEB)通路相关蛋白表达。结果:与假手术组比较,模型组大鼠LVEDD、LVESD、血清NT-proBNP水平、LVMI、心肌胶原体积分数(CVF)、miR-21和CollagenⅠ、CollagenⅢ的mRNA水平以及p62蛋白水平、p-AKT/AKT比值升高,LVEF、FS、PTEN的mRNA和蛋白水平、自噬空泡的数量以及LC3Ⅱ/Ⅰ、Beclin-1、TFEB蛋白水平下降(P<0.05);与模型组比较,rAAV9-anti-miR-21组大鼠LVEDD、LVESD、血清NT-proBNP水平、LVMI、CVF、miR-21和CollagenⅠ、CollagenⅢ的mRNA水平、p62蛋白水平、p-AKT/AKT比值下降,LVEF、FS、PTEN的mRNA和蛋白水平、自噬空泡的数量以及LC3Ⅱ/Ⅰ、Beclin-1、TFEB蛋白水平升高(P<0.05);而敲低miR-21基础上应用PTEN抑制剂下调PTEN表达可降低自噬,减弱敲低miR-21对心力衰竭大鼠心肌纤维化的抑制作用。结论:miR-21在心肌梗死后心力衰竭大鼠模型中的高表达可能通过下调PTEN、激活AKT、抑制TFEB的核易位,进而抑制自噬,促进心肌纤维化。 展开更多
关键词 心肌梗死 心力衰竭 MICRORNA-21 心肌纤维化 自噬 磷酸酶-张力蛋白同源物基因/蛋白激酶B/转录因子EB通路 实验研究
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二甲双胍对体外子宫内膜癌细胞COX-2、VEGF和PTEN表达的影响 被引量:1
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作者 贺天虎 邓娟 +1 位作者 雷慧 曹云桂 《海南医学》 CAS 2023年第2期171-175,共5页
目的探讨二甲双胍在体外对人子宫内膜癌细胞环氧合酶-2(COX-2)、血管内皮生长因子(VEGF)和张力蛋白同源第10号染色体缺失的磷酸酶(PTEN)蛋白表达的影响。方法按照二甲双胍干预药物浓度的不同,将细胞实验分为实验组(0.01 mmol/L组,0.1 mm... 目的探讨二甲双胍在体外对人子宫内膜癌细胞环氧合酶-2(COX-2)、血管内皮生长因子(VEGF)和张力蛋白同源第10号染色体缺失的磷酸酶(PTEN)蛋白表达的影响。方法按照二甲双胍干预药物浓度的不同,将细胞实验分为实验组(0.01 mmol/L组,0.1 mmol/L组,1 mmol/L组,10 mmol/L组)和对照组(0 mmol/L组),分别干预4种人子宫内膜癌Ishikawa、RL-952、HEC-1A和KLE细胞相同时间后,采用ELISA法检测内膜癌细胞中COX-2和VEGF表达的变化,Western blotting法检测内膜癌细胞中PTEN蛋白的表达情况。结果Ishikawa和RL-952细胞中4个实验组相对于对照组COX-2和VEGF的表达均随着二甲双胍浓度的增加呈明显下降趋势,差异均有统计学意义(P<0.05);HEC-1A和KLE细胞中4个实验组相对于对照组COX-2的表达均随着二甲双胍浓度的增加呈下降趋势,但是仅有HEC-1A细胞中10 mmol/L组差异有统计学意义(P<0.05),其余实验组差异均无统计学意义(P>0.05);HEC-1A和KLE细胞中4个实验组相对于对照组VEGF的表达均随着二甲双胍浓度的增加呈明显下降趋势,差异有统计学意义(P<0.05);Western blotting法检测显示二甲双胍能够促进子宫内膜癌Ishikawa细胞中PTEN蛋白的表达,差异有统计学意义(P<0.05),而对RL-952、HEC-1A和KLE细胞中PTEN蛋白的表达无影响(P>0.05)。结论二甲双胍可能通过抑制子宫内膜癌细胞中COX-2与VEGF的表达来实现其部分的抗肿瘤作用。 展开更多
关键词 子宫内膜癌 二甲双胍 环氧合酶-2 血管内皮生长因子 张力蛋白同源第10号染色体缺失的磷酸酶
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联合PTEN、Gleason评分与PSA在预测前列腺癌进展中的价值 被引量:1
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作者 熊冰 杨志伟 +1 位作者 郑新民 朱昌法 《实用癌症杂志》 2007年第5期476-478,共3页
目的研究第10号染色体缺失的磷酸酶和张力蛋白同源物基因(PTEN)、Gleason评分、前列腺特异性抗原(PSA)在预测前列腺癌进展中的价值。方法应用S-P法测定29例前列腺癌(Pca)与20例前列腺增生(BPH)组织切片中PTEN蛋白的表达,回顾性研究上述... 目的研究第10号染色体缺失的磷酸酶和张力蛋白同源物基因(PTEN)、Gleason评分、前列腺特异性抗原(PSA)在预测前列腺癌进展中的价值。方法应用S-P法测定29例前列腺癌(Pca)与20例前列腺增生(BPH)组织切片中PTEN蛋白的表达,回顾性研究上述Pca、BPH患者Gleason评分及PSA资料。结果BPH与Pca两组中PTEN总体表达有差异性(P<0.05),两组PSA值总体差异性显著(P<0.05)。PTEN与临床资料关系中,术前PSA<4ng/ml与>10ng/ml两组间PTEN表达有差异(P<0.05),余无差异性。Gleason评分2~4分与5~7分两组PTEN表达无差异(P>0.05),两组与8~10分组PTEN表达比较差异均有显著性(P<0.01);高分化与低分化组PTEN表达有显著差异(P<0.01);临床A、B期与C、D期PTEN表达差异性显著(P<0.01)。结论联合PTEN、Gleason评分及PSA对诊断并预测Pca进展有一定的临床意义。 展开更多
关键词 第10号染色体缺失的磷酸酶和张力蛋白同源物基因蛋白 GLEASon评分 前列腺特异性抗原 前列腺癌
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幽门螺杆菌感染的胃癌组织中miR-214和PTEN的表达及意义 被引量:1
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作者 高之峰 李慧 王庄梅 《徐州医科大学学报》 CAS 2023年第10期751-755,共5页
目的研究miR-214和磷酸酶及张力蛋白同源物(PTEN)在幽门螺杆菌(HP)感染的胃癌组织中的表达及意义。方法选取2016年6月—2019年6月在徐州市第一人民医院接受治疗的HP感染的胃癌患者66例为研究对象。采用实时荧光定量PCR(qRT-PCR)法检测... 目的研究miR-214和磷酸酶及张力蛋白同源物(PTEN)在幽门螺杆菌(HP)感染的胃癌组织中的表达及意义。方法选取2016年6月—2019年6月在徐州市第一人民医院接受治疗的HP感染的胃癌患者66例为研究对象。采用实时荧光定量PCR(qRT-PCR)法检测胃癌组织和癌旁组织中miR-214水平。采用免疫组化法测定胃癌组织和癌旁组织中PTEN表达水平。分析miR-214和PTEN表达水平与胃癌患者临床病理特征的关系。术后随访,探究miR-214和PTEN表达水平与患者预后的关系。结果与癌旁组织相比,胃癌组织miR-214表达水平较高(P<0.05),PTEN阳性表达率较低(P<0.05)。miR-214、PTEN与TNM分期、有无远处转移有关(P<0.05),与年龄、性别、肿瘤直径无关(P>0.05)。miR-214与PTEN呈显著负相关(P<0.05)。miR-214高表达胃癌患者平均生存时间显著短于miR-214低表达胃癌患者(P<0.05),PTEN阴性胃癌患者平均生存时间显著短于PTEN阳性胃癌患者(P<0.05)。结论HP感染的胃癌组织中miR-214呈高表达,PTEN阳性表达率低,miR-214和PTEN表达与HP感染的胃癌患者预后情况密切相关。 展开更多
关键词 miR-214 磷酸酶及张力蛋白同源物 胃癌 幽门螺杆菌 感染
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Anti-miRNA-221 sensitizes human colorectal carcinoma cells to radiation by upregulating PTEN 被引量:7
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作者 Qi Xue Kai Sun +3 位作者 Hai-Jun Deng Shang-Tong Lei Jing-Qing Dong Guo-Xin Li 《World Journal of Gastroenterology》 SCIE CAS 2013年第48期9307-9317,共11页
AIM:To investigate the regulative effect of miRNA(miR)-221 on colorectal carcinoma(CRC)cell radiosensitivity and the underlying mechanisms.METHODS:A human CRC-derived cell line was cultured conventionally and exposed ... AIM:To investigate the regulative effect of miRNA(miR)-221 on colorectal carcinoma(CRC)cell radiosensitivity and the underlying mechanisms.METHODS:A human CRC-derived cell line was cultured conventionally and exposed to different doses of X-rays(0,2,4,6 and 8 Gy).The total RNA and protein of the cells were extracted 24 h after irradiation,and the alteration of miR-221 and phosphatase and tensin homolog deleted on chromosome 10(PTEN)gene mRNA expression was detected by real-time reverse transcriptase polymerase chain reaction(PCR).The protein alteration of PTEN in the cells was detected by Western blotting.Caco2 cells were pretreated with or without anti-PTEN-siRNA prior to the addition of premiR-221 or anti-miR-221 using Lipofectamine 2000.Colony formation assay and flow cytometry analysis were used to measure the surviving cell fraction and the sensitizing enhancement ratio after irradiation.Ad-ditionally,PTEN 3′-untranslated region fragment was PCR amplified and inserted into a luciferase reporter plasmid.The luciferase reporter plasmid construct was then transfected into CRC cells together with premiR-221 or anti-miR-221,and the luciferase activity in the transfected cells was detected.RESULTS:The X-ray radiation dose had a significant effect on the expression of miR-221 and PTEN protein in human Caco2 cells in a dose-dependent manner.The miR-221 expression level improved gradually with the increase in irradiation dose,while the PTEN protein expression level reduced gradually.miR-221 expression was significantly reduced in the anti-miR-221 group compared with the pre-miR-221 and negative control groups(P<0.01).Anti-miR-221 upregulated expression of PTEN protein and enhanced the radiosensitivity of Caco2 cells(P<0.01).Moreover,the inhibitory effect was dramatically abolished by pretreatment with anti-PTEN-siRNA,suggesting that the enhancement of radiosensitivity was indeed mediated by PTEN.A significant increase of luciferase activity was detected in CRC cells that were cotransfected with the luciferase reporter plasmid construct and anti-miR-221(P<0.01).CONCLUSION:Anti-miR-221 can enhance the radiosensitivity of CRC cells by upregulating PTEN. 展开更多
关键词 COLORECTAL carcinoma MIR-221 phosphatase and tenSIN homolog deleted on chromosome 10 RADIOSENSITIVITY
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