蛋白质酪氨酸磷酸酶

蛋白质酪氨酸磷酸酶的相关文献在1994年到2022年内共计74篇,主要集中在肿瘤学、基础医学、内科学 等领域,其中期刊论文55篇、会议论文1篇、专利文献227725篇;相关期刊47种,包括生物技术通讯、医学分子生物学杂志、中国病理生理杂志等; 相关会议1种,包括第八届全国工业生化与分子生物学学术大会等;蛋白质酪氨酸磷酸酶的相关文献由299位作者贡献,包括付学奇、李婉南、孟群等。

蛋白质酪氨酸磷酸酶—发文量

期刊论文>

论文:55 占比:0.02%

会议论文>

论文:1 占比:0.00%

专利文献>

论文:227725 占比:99.98%

总计:227781篇

蛋白质酪氨酸磷酸酶—发文趋势图

蛋白质酪氨酸磷酸酶

-研究学者

  • 付学奇
  • 李婉南
  • 孟群
  • 李燕
  • 潘卫利
  • 范丽霞
  • 董玉娥
  • 邢述
  • 韩颖
  • C·E·王

蛋白质酪氨酸磷酸酶

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    • 袁艳; 翁宇红; 赵淑云; 李仕祥; 王珺; 谭红梅; 杨敏燕; 黄官友
    • 摘要: Objective:To explore the correlation of tyrosine phosphatase-1/2 (SHP-1,SHP-2) with indoleamine 2,3-dioxygenase(IDO) in maternal fetal interface.Methods: The expression of SHP-1,SHP-2 and IDO were detected by Western blot method and the relationship of the proteins was analysed,in human chorionic villi and decidua tissues of 30 cases of artificial abortion patients.Results:The expression of SHP-1,SHP-2 were positively correlated withthe expression of IDO in human chorionic villi and de-cidua;the expression of SHP-1,SHP-2 and IDO in decidual tissues were higher than those in the villi.Conclusion: Normal physiological state of pregnancy,SHP-1 and SHP-2 may be involved in the regulation of immune tolerance by positive regulation of IDO expression at maternal fetal interface.%目的:研究母胎界面中吲哚胺2,3-双加氧酶(IDO)及酪氨酸磷酸酶-1/2(SHP-1,SHP-2)的表达及其相关性,以探索母胎免疫耐受的新机制.方法:30例正常早孕6~8周妇女行人工流产获取绒毛及蜕膜组织,用Western blot方法检测绒毛、蜕膜组织中的酪氨酸磷酸酶-1/2(SHP-1、SHP-2)与IDO的蛋白表达,分析IDO与SHP-1、SHP-2的相关性.结果:人早孕绒毛及蜕膜组织中均有SHP-1、SHP-2的表达,与IDO的表达呈正相关;SHP-1、SHP-2和IDO在蜕膜组织中的表达均高于绒毛;结论:在正常生理妊娠状态下,母胎界面中SHP-1、SHP-2可能参与调节IDO的表达,在维持母胎界面的免疫耐受状态起着重要作用.
    • 于源志; 邹伟
    • 摘要: 糖尿病是一种以高血糖为特征的代谢性疾病,主要分为Ⅰ型糖尿病、Ⅱ型糖尿病和妊娠糖尿病等3类.Ⅱ型糖尿病患者众多,占糖尿病患者总数的90%~95%,因而成为研究热点.同时,Ⅱ型糖尿病也因其发病因素多、发病过程复杂而成为研究的难点.我们从代谢相关酶与血糖调节相关信号通路2个方面,回顾了近年来在Ⅱ型糖尿病发病机制与治疗领域的研究进展,为探讨Ⅱ型糖尿病的发病机制及治疗靶点提供一些理论依据.
    • 王利娟; 刘志芬; 曹晓华; 孙宁; 杨春霞; 张克让
    • 摘要: Objective To explore the influence of a polymorphism of protein tyrosine phosphatase receptor type R (PTPRR) gene rs1513105 on abnormal brain activities in resting-state patients with major depressive disorder (MDD) using the gene-imaging technology. Methods 54 MDD and 43 gender-, age-, and education-matched controls received fMRI scans and genotyping to identify the main effect of disease status, genotypes and their interaction in MDD. Results The results of 2 × 2 ANOVA showed increased ReHo in left superior temporal gyrus (t= 4.208 2), right supramarginal gyrus(t= 3.027 1), left superior parietal gyrus (t=3.212 2) were in patients than controls. The carriers with TT genotype showed increased ReHo in left inferior parietal gyrus (t=3.129 0), left postcentral gyrus (t=3.263 3) and reduced ReHo in right caudate nucleus (t=-3.443 4), right inferior frontal gyrus, opercular part (t=-3.444 5), right cerebelum (t=-3.079 3) than G allele carriers(P<0.05). The patients showed increased ReHo in right inferior temporal gyrus (t=3.560 2), right inferior frontal gyrus, triangular part (t=3.296 1) and reduced ReHo in left superior temporal gyrus (t=-4.354 3), left precuneus(t=-4.026 7), left superior frontal gyrus(t=-3.656 0),left inferior occipital gyrus (t=-3.805 4), right supramarginal gyrus (t=-3.433 2) than controls, comparing G allele carriers with TT genotype carriers. Reduced ReHo in left inferior occipital gyrus was positively correlated with cognitive (r=0.323, P= 0.017) and sleep disturbance (r=0.318, P= 0.019), Reduced ReHo in right supramarginal gyrus was positively correlated with cognitive disturbance (r=0.273, P= 0.046). Conclusion The interaction between PTPRR gene polymorphism and MDD may contribute to the change of resting-state function of some depression-related brain region, and might be involved in the pathogenesis of MDD.%目的:探讨抑郁症患者酪氨酸磷酸酶受体R亚型(protein tyrosine phosphatase receptor type R, PTPRR)基因rs1513105多态性对静息态脑功能的影响。方法对54例抑郁症患者(病例组)及43名性别、年龄、受教育年限匹配的健康志愿者(对照组)进行静息态磁共振成像扫描和PTPRR基因分型,探讨疾病状态、基因型的主效应和二者的交互作用。结果方差分析结果显示:(1)疾病状态为主效应:与对照组相比,病例组左颞上回(t=4.2082)、右缘上回(t=3.0271)、左顶上小叶(t=3.2122)局部一致性(regional homogeneity, ReHo)值升高(均P<0.05);(2)基因多态性为主效应:与TT基因型组相比,G等位基因携带组左顶下小叶(t=3.1290)、左中央后回(t=3.2633)ReHo值升高(均P<0.05),右尾状核(t=-3.4434)、右岛盖部额下回(t=-3.4445)、右侧小脑(t=-3.0793)ReHo值下降(均P<0.05);(3)疾病状态与基因多态性的交互作用:与对照组相比,病例组G等位基因携带组较TT基因型组右颞下回(t=3.5602)、右三角部额下回(t=3.2961)ReHo值升高(P<0.05),左颞上回(t=-4.3543)、左楔前叶(t=-4.0267)、左额上回(t=-3.6560)、左枕下回(t=-3.8054)、右缘上回(t=-3.4332)ReHo值下降(P<0.05)。Pearson相关分析结果显示,病例组左枕下回ReHo值与认知障碍因子分(r=0.323, P=0.017)和睡眠障碍因子分(r=0.318, P=0.019)呈正相关,右缘上回ReHo值与认知障碍因子分(r=0.273, P=0.046)呈正相关。结论 PTPRR-rs1513105基因多态性与抑郁症的交互作用可能导致部分抑郁相关脑区静息态脑功能变化,并可能和抑郁症的发病机制有关。
    • 王兆峰; 刘红兵; 姚艳雯; 陈芳芳; 宋勇
    • 摘要: Objective To explore the protein-tyrosine-phosphatase 1B (PTP1B) expression and its prognostic significance in non-small-cell lung cancer (NSCLC).Methods Immunohistochemical method of EnVision was applied to investigate the expression of PTP1B in lung specimens from 63 cases with NSCLC and 9 cases with pneumonia confirmed by pathological examination after surgical removals at Jinling Hospital from June 2000 to October 2010.The data of PTP1B expression in different lung tissues and its relationship with clinicopathological features and prognostic value for survival were analyzed by chi-square test,Kaplan-Meire survival analysis,Log rank test and multivariable Cox regression analysis.Results The expression of PTP1B was negative in pneumonia group while positive in NSCLC tissues (32/63,50.8%) (x2 =8.229,P =0.004).The expression of PTP1B in NSCLC tissue was not correlated with gender,age,smoking history,tumor size,pathological type,lymph node metastasis and chemotherapy,but significantly associated with pTNM staging (x2 =6.426,P =0.040).Kaplan-Meire survival analysis showed that the expression of PTP1B was significantly correlated with overall survival (Log-rank,P =0.047).Multivariable Cox regression analysis indicated that both PTP1B (HR =2.050,P =0.044) and pTNM staging (HR =3.631,P =0.000) were independent prognostic factors for NSCLC.Conclusions PTP1B may be a biomarker for differential diagnosis of malignant lung disease.And PTP1B and pTNM were independent prognostic factors for NSCLC.%目的 探讨蛋白酪氨酸磷酸酶IB(PTP1B)在非小细胞肺癌(NSCLC)组织中的表达及其对预后的预测价值.方法 运用免疫组织化学EnVision法,检测2000年6月至2006年10月南京军区南京总医院手术切除的经常规病理证实的63例NSCLC肺癌组织和9例肺炎组织中PTP1B的表达并进行统计学分析,探讨其与临床病理特征和预后的关系.结果 PTP1B在肺炎组织中均为阴性表达,在NSCLC组织中的表达阳性率为50.8%(32/63),显著高于肺炎组(x2=8.229,P=0.004);PTP1B在NSCLC组织中的表达与性别、年龄、吸烟、肿瘤大小、病理类型、淋巴结转移及化疗与否无明显相关,而与pTNM分期显著相关(X2=6.426,P=0.040).Kaplan-Meire生存分析显示,PTP1B表达与肺癌患者的总生存期明显相关(Log-rank,P=0.047).多因素Cox回归分析显示PTP1B的表达是影响NSCLC预后的独立因素(HR=2.050,P=0.044),pTNM分期也是影响NSCLC独立预后因素(HR =3.631,P=0.000).结论 PTP1B在肺癌发生发展中起重要的作用,PTP1B及pTNM分期是NSCLC独立的预后因素.
    • 许小兵; 张晓华; 杨妙芳; 李敏利; 朱人敏
    • 摘要: 目的 检测人肝细胞肝癌组织及细胞株SMMC7721中蛋白酪氨酸磷酸酶eta(PTPeta)的表达,观察肿瘤细胞生长密度对其表达的影响.方法 采用免疫组化方法检测肝细胞肝癌组织及SMMC7721细胞中PTPeta蛋白的表达;采用RT-PCR法检测不同生长密度(1×103、5×103、l×104、5×104/cm2)SMMC7721细胞中PTPeta的表达变化情况.结果 免疫组化检测结果表明肝细胞肝癌组织中PTPeta表达呈阳性,SMMC7721细胞中存在PTPeta表达,且定位于细胞膜;RT-PCR检测结果显示,当细胞密度为l×103、5×103、l×104、5×104/cm2时,PTPeta mRNA的表达量分别为0.425±0.031、0.659±0.041、0.771±0.043、0.885±0.045,PTPeta表达随着肿瘤细胞生长密度的增高而增加,差异具有统计学意义(P<0.05).结论 PTPeta在肝细胞肝癌组织及细胞中表达,且随肿瘤细胞生长密度增高而表达增加.PTPeta 可能通过增加肝癌细胞黏附、维持恶性肿瘤细胞内环境稳定等,在恶性肿瘤细胞增殖及播散转移的过程中起重要作用.%Objective To investigate the expression of protein tyrosine phosphatase eta (PTPeta) in hepatocellular carcinoma tissue and SMMC-7721 cells, and observe the effects of SMMC7721 cell density on PTPeta expression. Methods Immunohistochemistry method was used to detect the protein expression of PTPeta in hepatocellular carcinoma tissues and SMMC-7721 cells. RT-PCR was employed to detect the mRNA expression of PTPeta in different growth density of SMMC-7721 cells (l x 103, 5 x 103, 1 x 104, 5 x loVcm2). Results Immunohistochemical detection demonstrated that the PTPeta was positively expressed in hepatocellular carcinoma tissue. Immunofluorescence study showed that PTPeta was also expressed in SMMC-7721 cells, and it was mainly localized in cell membrane. RT-PCR study indicated that the degree of expression of PTPeta mRNA was 0.425 ± 0.031, 0.659 ± 0.041, 0.771 ± 0.043 and 0.885 ± 0.045 respectively in cell density of 1 x 103, 5 x 103, 1 x 104 and 5 x 104/ cm . The expression of PTPeta mRNA was increased along with increase of tumor cell density with statistically significant difference (P<0.05). Conclusion PTPeta may by expressed in hepatocellular carcinoma tissue and tumor cells, and the expression may be increased by an increase in cell density. PTPeta may play an important role in proliferation and migration of malignant tumor cells by increasing the adhesiveness of hepatocarcinoma cells and maintaining the homeostasis of malignant tumor cells.
    • 徐振兴; 陈进春; 邱明山; 滕菁; 徐明
    • 摘要: 目的 建立TaqMan-MGB探针实时荧光聚合酶链反应(PCR)方法,研究福建厦门地区汉族人类风湿关节炎(RA)与PTPN22基因C 1858T多态性的相关性.方法 应用病例对照法,收集100例RA患者和100名健康人血液标本,利用TaqMan-MGB探针实时荧光PCR方法检测PTPN22C1858T基因多态性.结果 ①成功建立TaqMan-MGB探针实时荧光PCR技术检测PTPN22C1858T基因多态性.②PTPN22基因1858位点在福建厦门地区汉族人中仅存在C等位基因,未检测到T等位基因.结论 厦门地区汉族人不存在PTPN22 1858T等位基因,PTPN22 C1858T多态性与RA可能不存在关联.%Objective To assess the correlation between FFPN22 C1858T polymorphism and rheumatoid arthritis(RA)in Han people in Xiamen area by TaqMan-MGB real-time PCR.Methods A casecontrol study was carried out in Xiamen Han population.Their blood samples(100 RAs and 100 controls respectively)were collected and the PTPN22 C1858T polymnrphism was tested by TaqMan-MGB real-time PCR.Results ①A technique of TaqMan-MGB teal-time PCR was established to investigate PTPN22 C1858T polymorphism;② Onlv 1858 C allele was presented in all the RAs and controls,and no T allele was detected.Conclusion There is no PTPN22 1858T allele in Han people in Xiamen area.It is suggested that there's no association between PTPN22 C1858T polymorphism and RA.
    • 陈俊波; 李晓春
    • 摘要: 目的:检测肝再生磷酸酶3(PRL-3) mRNA在胃癌、癌旁正常组织及其转移灶中的表达,探讨其与胃癌发生发展以及侵袭转移的生物学行为之间的关系.方法:半定量PCR测定22例胃癌组织及其相对应的癌旁正常组织、6例远处转移灶PRL-3 mRNA相对表达水平,并分析其表达水平与临床病理学指标的关系.结果:22例胃癌组织中PRL-3基因表达量较相应癌旁正常组织中高,但差异无统计学意义(0.95±0.24 vs 0.85±0.27,P>0.05).6例转移灶PRL-3基因表达量(2.04±0.44)显著高于原发肿瘤(1.26±0.26)(P<0.05).PRL-3基因表达水平与肿瘤远处转移有相关性(P<0.05),而与肿瘤大小、分化程度、浸润深度及性别无关(P>0.05).结论:PRL-3基因在胃癌恶性进展中起重要作用,PRL-3可能成为判断胃癌转移高危因素的一个生物学标志物.
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