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1.
非小细胞肺癌中STAT3与MAPK的表达及临床意义   总被引:3,自引:0,他引:3  
张真发  马建群  孙楠  张林 《中国肿瘤临床》2004,31(20):1167-1170
目的:探讨STAT3和MAPK的几个主要亚族p38、ERK1和JNK1在非小细胞肺癌中的表达,判断这几种信号蛋白的相互关系及对非小细胞肺癌预后的影响.方法:应用免疫组化的方法对71例手术标本的石蜡切片进行染色,判断STAT3和MAPK几个主要亚族在肺癌组织中的表达.结果:p38、ERK1和STAT3的表达与临床分期有关(P<0.01).JNK1的表达与肿瘤位置(P=0.028)和临床分期(P=0.000)有关.STAT3和p38明显相关(P=0.000).单因素分析显示STAT3(P=0.000 6)、p38(P=0.000 0)、JNK1(P=0.020 8)、肿瘤分化(P=0.005 9)和临床分期(P=0.000 0)与预后相关.多因素分析显示STAT3(P=0.025)、p38(P=0.026)、肿瘤分化(P=0.003)和临床分期(P=0.019)与预后明显相关.结合STAT3和p38两个因子进行预后分析,发现两个指标均阴性表达时,非小细胞肺癌患者预后较好(P<0.05).结论:JAK-STAT和ras-MAPK两大信号传导通路的几个主要蛋白的表达对于非小细胞肺癌的诊治有一定的临床意义;STAT3的表达能促进p38的表达;二者的表达可辅助用于对非小细胞肺癌预后的评估.  相似文献   

2.
目的:探讨阿帕替尼联合三线化疗治疗晚期非小细胞肺癌的临床疗效。方法:回顾性研究我院2015年06月至2017年06月给予阿帕替尼联合化疗治疗的晚期非小细胞肺癌患者22例,服用阿帕替尼联合化疗两周期后评估疗效和不良反应。结果:阿帕替尼联合化疗治疗晚期非小细胞肺癌,部分缓解率(PR)9.1%,疾病稳定率(SD)36.4%;常见的阿帕替尼相关不良反应发生率为乏力36.4%,高血压27.3%,口腔黏膜炎 9.1%,且基本为1-2级不良反应。结论:阿帕替尼联合三线化疗治疗晚期非小细胞肺癌有一定的临床疗效,能够延长患者的生存时间,且耐受性良好。  相似文献   

3.
Huang LJ  Chen SX  Luo WJ  Jiang HH  Zhang PF  Yi H 《癌症》2006,25(11):1361-1367
背景与目的:癌细胞分泌蛋白是潜在的血清标志物,而且对肿瘤的早期筛选也具有重要意义。因此,系统、全面地研究肿瘤细胞分泌蛋白对于肿瘤血清标志物的筛选具有重要意义。本研究旨在鉴定肺癌细胞分泌蛋白,为肺癌血清标志物筛选提供实验依据。方法:用含胎牛血清的RPMI-1640培养液培养非小细胞肺癌细胞系A549细胞,收集A549细胞培养液中的蛋白及胎牛血清培养液中的蛋白(对照)进行蛋白双向电泳,应用基质辅助激光解析电离飞行时间质谱(MALDI-TOF-MS)及生物信息学鉴定A549凝胶上特有的蛋白质点。筛选出人属的蛋白质点后,应用RT-PCR方法检测其在肺癌组织及配对远处肺组织中的表达差异;并检测培养液及血清中锰-超氧化物歧化酶(manganesesuperoxidedismutase,Mn-SOD)水平。结果:鉴定出人属的蛋白质点14个,包括肌动蛋白、!烯醇酶(alphaenolase,ENO1)、Mn-SOD、谷胱苷肽S转移酶P(glutathioneS-transferaseP,GSTP1-1)、二氢二醇脱氢酶(dihydrodioldehydrogenase,DDH)、磷酸甘油酸变位酶1(phosphoglyceratemutase1,PGAM1)、葡萄糖依赖性胰岛素释放肽受体(glucose-dependentinsulinotropicproteinreceptor,GIPR)、肽基脯氨基顺反异构酶(peptidyl-prolylcis-transisomeraseA,PPIA)、磷脂酰乙醇胺结合蛋白(phosphatidylethanolaminebindingprotein,PEBP)、蛋白基因产物9.5(ubiquitincarboxyl-terminalhydrolaseisozymeL1,PGP9.5)、peroxiredoxin1(PDX1)、galectin-1及专利蛋白WO0222660等。RT-PCR检测示ENO1、DDH、PEBP、PGP9.5、PDX1、PGAM1、PPIA在肺癌组织中高表达。酶活性检测发现A549培养液中存在Mn-SOD,且发现非小细胞肺癌患者血清中有高水平的Mn-SOD。结论:本研究首次对非小细胞肺癌细胞的分泌蛋白进行了鉴定;发现多种高表达的非小细胞肺癌分泌蛋白基因,其中首次发现ENO1及PEBP基因在非小细胞肺癌中高表达;Mn-SOD是非小细胞肺癌的分泌型血清标志物。该研究为非小细胞肺癌血清标志物的筛选提供了新的方法和候选分子。  相似文献   

4.
Yu ZH  Wang YC  Chen LB  Song Y  Liu C  Xia XY  Lin Q  Ma CY 《中华肿瘤杂志》2008,30(4):284-287
OBJECTIVE: To detect the hypermethylation status of RASSF1A promoter in serum DNA of non-small cell lung cancer (NSCLC) patient and evaluate its correlation with clinicopathological parameters. METHODS: Serum DNA was extracted from the peripheral blood of 75 NSCLC patients and another 35 patients with benign pulmonary disease and 15 healthy donors. The methylation status of RASSF1A promoter was determined using methylation-specific PCR (MSP), and the correlation of methylation profiles with clinicopathological parameters was statistically analyzed. RESULTS: Aberrant methylation of RASSF1A was detected in 23 of 75 (30.7%) cancer patients, but in none of patients with benign pulmonary disease or in healthy donors (P <0.001). RASSF1A hypermethylation status was found to be correlated with late stage and poor differentiation (P < 0.05), but not with gender, age or histopathology in NSCLC patients. CONCLUSION: Hypermethylated RASSF1A promoter is frequently found in the serum DNA of non-small cell lung cancer patient, and RASSF1A may become a promising novel biomarker for diagnosis and prognosis prediction in lung cancer.  相似文献   

5.
Objective: To explore the expression and significance of the multidrug resistance-related proteins P-glycoprotein (P-gp), multidrug resistance-related protein (MRP), lung resistance protein (LRP)in human non-small cell lung cancer (NSCLC) tissues and paratumor tissues. Methods: Immunohistochemistry (IHC) was used to examine the expression level of proteins P-gp, MRP and LRP in 43 samples of NSCLC and 15 samples of paratumor tissues. Results: The expression rates of P-gp, MRP and LRP in 43 tumor tissues were 74.42% (32/43), 67.44% (29/43) and 88.37% (38/43), respectively, while in 15 paratumor tissues were 13.33% (2/15), 20.00% (3/15) and 6.67% (1/15), respectively. There was significant difference in the expression of proteins (P-gp, MRP and LRP) between lung cancer tissues and paratumor tissues (P 〈 0.05). The expression of proteins P-gp, LRP in lung adenocarcinoma were higher than that in other pathological carcinomas (P 〈 0.05). The expression of protein MRP was not related to pathological type, clinical stage and classification of histodifferentiation (P 〉 0.05). Conclusion: Multidrug resistance is more common in NSCLC. The proteins of P-gp, MRP and LRP participated in the formation of multidrug resistance in lung cancer. Detection of multidrug resistance-related proteins in lung cancer tissues may be useful to choice drugs.  相似文献   

6.
Identification of secreted proteins of lung cancer could provide new candidates of serum biomarkers for cancer diagnosis and prognosis evaluation. In this study, non-small cell lung cancer (NSCLC) cell line A549 was cultured. Proteins in the conditioned medium of A549 were recovered and the proteome analysis was subsequently performed. Secreted proteins of A549 were identified using mass spectrometry and database search. Fourteen human proteins were identified, including peptidyl-prolyl cis-trans isomerase A, manganese superoxide dismutase, peroxiredoxin 1, phosphatidylethanolamine-binding protein, glutathione S-transferase P, PGP9.5, alpha enolase, phosphoglycerate mutase 1, galectin-1 and dihydrodiol dehydrogenase (DDH). DDH was selected for further analysis using RT-PCR, immunoblotting, immunohistochemical staining and ELISA in NSCLC patients. Compared with normal lung tissues, higher DDH mRNA and protein expression level were found in 15 NSCLC cancer tissues (p<0.05). DDH overexpression was identified to be located in cytoplasm and cell membrane by immunohistochemical staining in NSCLC tissue. The serum level of DDH was significantly higher in NSCLC patients (n=64) than nonmalignant lung tumor (n=20) and healthy controls (n=20) (p<0.05). The results show that DDH was one of the secreted proteins in NSCLC. It can serve as a tissue marker and a novel serological marker of NSCLC. Identification of secreted proteins could be a feasible and effective strategy to search potential serum biomarkers of cancer.  相似文献   

7.
Oncogenesis in non-small cell lung cancer (NSCLC) is regulated by a complex signal transduction network. Single-agent targeted therapy fails frequently due to treatment insensitivity and acquired resistance. In this study, we demonstrate that co-inhibition of the MAPK and SRC pathways using a PD0325901 and Saracatinib kinase inhibitor combination can abrogate tumor growth in NSCLC. PD0325901/Saracatinib at 0.25:1 combination was screened against a panel of 28 NSCLC cell lines and 68% of cell lines were found to be sensitive (IC50 < 2 μM) to this combination. In Snail1 positive NSCLC lines, the drug combination complementarily enhanced mesenchymal-epithelial transition (MET), increasing both E-cadherin and Plakoglobin expression, and reducing Snail1, FAK and PXN expression. In addition, the drug combination abrogated cell migration and matrigel invasion. The co-inhibition of MAPK and SRC induced strong G1/G0 cell cycle arrest in the NSCLC lines, inhibited anchorage independent growth and delayed tumor growth in H460 and H358 mouse xenografts. These data provide rationale for further investigating the combination of MAPK and SRC pathway inhibitors in advanced stage NSCLC.  相似文献   

8.
目的:研究FBXW7在非小细胞肺癌上皮间质转化(epithelial-mesenchymal transformation,EMT)过程中发挥的作用。方法:收集100对非小细胞肺癌组织和对应的癌旁组织,利用免疫组化检测FBXW7在癌组织和癌旁组织中的表达。利用Western blot检测FBXW7在细胞系中的表达及FBXW7对EMT部分标志蛋白的影响。利用Transwell实验检测FBXW7对NSCLC细胞迁移能力的影响。免疫共沉淀实验和泛素化的Western blot验证FBXW7与Snail1的关系。结果:FBXW7在NSCLC组织中的表达明显低于对应癌旁组织中的表达。FBXW7在正常肺上皮细胞中的表达也明显高于4种非小细胞肺癌细胞系中的表达。FBXW7过表达显著抑制A549细胞的迁移能力。FBXW7过表达也明显抑制NSCLC细胞的EMT。机制研究发现,FBXW7可以直接结合并泛素化降解Snail1蛋白,并且Snail1部分逆转FBXW7对NSCLC细胞EMT标志蛋白的影响。结论:FBXW7对NSCLC细胞EMT的调控部分依赖于泛素化降解Snail1蛋白。  相似文献   

9.
Objective:To elucidate protein markers that differentiate stage Ⅰ non-small cell lung cancer (NSCLC) that subsequently develop metastatic disease to those that do not develop metastasis by protein expression profiles.Methods:Matrix assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) and two dimensional difference gel electrophoresis (2D-DIGE) platforms were used to separate proteins in whole tumor specimens. Quantitating mRNA expression was used for validation. Results:Twelve proteins were identified as expressed differentially between two groups from protein expression platforms. But from gene expression platform no marker could distinguish patients with recurrent vs. nonrecurrent disease. Conclusion:Analysis of multiple protein markers may be more informative to predict prognosis of early stage lung cancer.  相似文献   

10.
Objective:To investigate the expressions and significance of Survivin,MDR1 and MRP in non-small cell lung cancer(NSCLC).Methods:Immunohistochemical staining was used to detect the expressions of Survivin,MDR1 and MRP.The correlation between the results was assessed and the impact of Survivin on prognoses was also examined.Results:Survivin was expressed in 78% tissues from NSCLC patients but not found in tissues from control patients(P < 0.05).The expression of Survivin was related to the tissue differentiation stage and lymph nodes metastasis of lung cancer.The mean survival time was shorter in patients with Survivin-expression than those who not.There was a significant correlation between MDR1 and Survivin(P < 0.05),whereas no close correlation was found between MRP and Survivin.Conclusion:(1) Survivin is of critical importance in the development of NSCLC,thus may provide an novel therapeutic target for lung cancer;(2) MDR1 and MRP present in tissues from lung cancer synergistically with Survivin,which might be involved in tumour resistance.  相似文献   

11.
目的 研究非小细胞肺癌(NSCLC)患者血清Ras相关区域家族1A(RASSF1A)基因启动子区域的甲基化状态及其临床意义.方法 采用甲基化特异性聚合酶链反应(MSP)技术,检测75例NSCLC患者血清RASSF1A基因启动子区域的甲基化状态,并分析其与临床病理参数之间的相关性.结果75例NSCLC患者血清RASSF1A基因启动子区域异常甲基化检出率为30.7%(23/75),而35例肺部良性疾病患者和15例健康志愿者中检出率均为0,差异有统计学意义(P<0.001).RASSF1A启动子异常甲基化与NSCLC患者的年龄、性别、病理类型无显著相关性,但在晚期及肿瘤分化程度较低的患者中检出率较高(P<0.05).结论 RASSF1A启动子异常甲基化在NSCLC的发生、发展中起重要作用,有望成为NSCLC辅助诊断和预后判断的分子标记.  相似文献   

12.
Objective: To investigate the expressions and significance of Survivin, MDR1 and MRP in non-small cell lung cancer (NSCLC). Methods: Immunohistochemical staining was used to detect the expressions of Survivin, MDR1 and MRP. The correlation between the results was assessed and the impact of Survivin on prognoses was also examined. Results: Survivin was expressed in 78% tissues from NSCLC patients but not found in tissues from control patients (P < 0.05). The expression of Survivin was related to the tissue differentiation stage and lymph nodes metastasis of lung cancer. The mean survival time was shorter in patients with Survivin-expression than those who not. There was a significant correlation between MDR1 and Survivin (P < 0.05), whereas no close correlation was found between MRP and Survivin. Conclusion: (1) Survivin is of critical importance in the development of NSCLC, thus may provide an novel therapeutic target for lung cancer; (2) MDR1 and MRP present in tissues from lung cancer synergistically with Survivin, which might be involved in tumour resistance.  相似文献   

13.
目的:探讨环氧化酶-2(COX-2)和表皮生长因子受体2(HER-2)在非小细胞肺癌(NSCLC)组织中的表达及其临床意义。方法:应用免疫组织化学法检测54例NSCLC、15例癌旁增生肺组织和10例正常肺组织中COX-2和HER-2蛋白的表达。结果:NSCLC组织中COX-2和HER-2蛋白阳性率分别为75.9%(41/54)和40.7%(22/54),癌旁肺组织、正常肺组织相比,差异均有统计学意义,P<0.001。COX-2蛋白表达与患者吸烟、组织学分级、TNM分期以及淋巴结转移均密切相关,P<0.05。而HER-2蛋白表达与NSCLC患者的病理类型、组织学分级、TNM分期和淋巴结转移密切相关,P<0.05。在54例NSCLC组织中,COX-2和HER-2蛋白表达之间呈显著正相关,r=0.433,P=0.001。结论:COX-2和HER-2在NSCLC中呈高表达,两者可能协同促进NSCLC的发生、发展以及侵袭和转移。  相似文献   

14.
PURPOSE AND EXPERIMENTAL DESIGN: The etiologic association and prognostic significance of mismatch repair gene/protein alterations have never been examined in nonsmoking lung cancer. Therefore, we investigated protein expression and promoter hypermethylation of hMLH1 and hMSH2 genes in the tumor specimens from 105 nonsmoking female non-small cell lung cancer (NSCLC) patients. Immunohistochemistry and restriction enzyme-based multiplex PCR were used to examine the protein expression and promoter hypermethylation, respectively. The occurrence of gene/protein alteration for each gene was compared with the patients' clinicopathologic variables as well as the overall survival and cancer-specific survival rates. RESULTS: Protein expression alteration and promoter hypermethylation were observed in 66% to 67% and 30% to 34% of tumor specimens for hMLH1 and hMSH2 genes, respectively. Loss of hMLH1 and hMSH2 protein expression was significantly associated with their promoter hypermethylation (P < 0.0001 and P = 0.049). The overall survival and cancer-specific survival rates were significantly lower in patients with promoter hypermethylation of hMSH2 gene than in those without hypermethylation (P = 0.038 and P = 0.004). The poor prognosis was still especially significant in adenocarcinoma (P = 0.035 and P = 0.061) and early-stage NSCLC patients (P = 0.067 and P = 0.041). CONCLUSION: Our data suggest that hMLH1 is the major altered mismatch repair gene involved in nonsmoking NSCLC tumorigenesis and that promoter methylation is the predominant mechanism in hMLH1 and hMSH2 deregulation. In addition, promoter methylation of the hMSH2 gene may be a potential prognostic factor in nonsmoking female lung cancer.  相似文献   

15.
An increasing number of studies have demonstrated that microRNAs (miRNAs) may play key roles in various cancer carcinogenesis and progression, including non-small cell lung cancer (NSCLC). However, the expressions, roles, and mechanisms of miR-510 in NSCLC have, up to now, been largely undefined. In vivo assay showed that miR-510 was upregulated in NSCLC tissues compared with that in adjacent nontumor lung tissues. miR-510 expression was significantly correlated with TNM stage and lymph node metastasis. In vitro assay indicated that expressions of miR-510 were also increased in NSCLC cell lines. Downregulation of miR-510 suppressed NSCLC cell proliferation and invasion in vitro. We identified SRC kinase signaling inhibitor 1 (SRCIN1) as a direct target gene of miR-510 in NSCLC. Expression of SRCIN1 was downregulated in lung cancer cells and negatively correlated with miR-510 expression in tumor tissues. Downregulation of SRCIN1, leading to inhibition of miR-510 expression, reversed cell proliferation and invasion in NSCLC cells. These results showed that miR-510 acted as an oncogenic miRNA in NSCLC, partly by targeting SRCIN1, suggesting that miR-510 can be a potential approach for the treatment of patients with malignant lung cancer.  相似文献   

16.
目的:评估非小细胞肺癌(non-small cell lung cancer,NSCLC)中雌激素受体(estrogen receptor,ER)表达与性别的关系。方法:通过计算机检索PubMed、EMBASE、Cochrane Library数据库,检索截止日期为2018年3月。纳入符合标准的文献,使用stata 12.0软件计算非小细胞肺癌中雌激素受体表达与性别关系的相对危险度(relative ratio,RR)。结果:共有10篇研究被提取出来,包含1 557例非小细胞肺癌患者,其中女性患者525例,男性患者1 032例。非小细胞肺癌中女性患者的雌激素受体表达阳性率明显高于男性患者[RR=1.15,95%CI(1.06~1.24),P=0.001],敏感性分析发现本研究的合并结果基本可靠,Egger检验、Begg检验提示本研究不存在发表偏倚。结论:雌激素受体阳性可能使女性更容易患非小细胞肺癌,导致女性肺癌发病率增高。  相似文献   

17.
Walker GE  Antoniono RJ  Ross HJ  Paisley TE  Oh Y 《Oncogene》2006,25(13):1943-1954
The need to develop more effective therapies for lung cancer has led to investigations in understanding the molecular mechanisms of the differentiation process, in particular neuroendocrine (NE) differentiation. Recent studies have demonstrated that NE differentiation in non-small cell lung carcinoma (NSCLC) is not uncommon. Those NSCLCs with NE differentiation are considered a form of in transition NE carcinoma and show a more aggressive clinical course compared with NSCLC without NE differentiation. 25.1, a novel protein interacting with mac25/insulin-like growth factor-binding protein-related protein 1 (mac25/IGFBP-rP1), induced NE-like differentiation when collectively overexpressed in M12 prostate cancer cells. We have examined mac25/IGFBP-rP1 and 25.1 as potential molecular regulators in vitro of the NE-differentiation process in lung cancer. In a panel of SCLC and NSCLC cell lines, mac25/IGFBP-rP1 and 25.1 were expressed at higher levels in SCLC. An increase and sustained activation of adenosine 3',5'-cyclic monophosphate (cAMP) levels induced NE-like differentiation in NSCLC cell lines, and a concomitant increase in the expression of mac25/IGFBP-rP1 and 25.1 was observed during the cAMP-regulated differentiation of NCI-H157 cells, suggesting the involvement of these proteins. Furthermore, the collective overexpression of mac25/IGFBP-rP1 and 25.1 in NSCLC cells induced NE-like differentiation as early as 6 h postinfection. The present data suggest that mac25/IGFBP-rP1 and 25.1 may play a functional role in the NE differentiation of NSCLC cell lines and may provide a novel therapeutic target for treating lung cancers, in particular NSCLC with NE differentiation.  相似文献   

18.
目的:探讨非小细胞肺癌(NSCLC)组织中凋亡抑制蛋白 livin 表达及其与各临床病理因素的关系, 以及和凋亡抑制蛋白 survivin表达的相关性. 方法: 采用免疫组织化学法检测100例NSCLC患者的病变肺组织(肺癌组) 以及10例正常或肺良性疾病患者肺组织(对照组) livin蛋白和survivin蛋白的表达水平,并分析2者与肺癌的组织类型、分化程度、淋巴结转移之间的关系,以及2种蛋白表达的相关性.结果:100例NSCLC组织中livin表达阳性率为 68.0%、survivin 为62.0%, 而在正常和癌旁组未检出阳性结果; livin的表达与组织分化和淋巴结转移有关,组织分化差,淋巴结转移者livin表达率高(P<0.05).62例survivin阳性样本中有 38例livin 呈阳性.结论: livin 和survivin 蛋白在癌组织中表达上调,提示其可能在非小细胞肺癌发生发展中起促进作用. survivin 和淋巴结转移的密切关系表明它的高表达可能反映患者较差的预后.livin基因可能成为非小细胞肺癌治疗的一个靶基因.  相似文献   

19.
目的:探讨CCDC25蛋白在非小细胞肺癌细胞中的表达及其对非小细胞肺癌增殖的影响。方法:应用GEPIA数据库分析CCDC25在肺癌组织中表达明显高于癌旁组织,结合Western blot检测和免疫荧光,检测其在非小细胞肺癌细胞系中的表达和定位。Western blot 检测YAP、p-YAP、LATS1、p-LATS1蛋白表达量。克隆形成实验和MTS实验检测CCDC25过表达对肿瘤细胞增殖能力的影响。结果:CCDC25在非小细胞肺癌细胞系中明显高表达,CCDC25过表达促进肿瘤细胞增殖能力(P<0.05)。CCDC25过表达抑制YAP蛋白的磷酸化促进YAP蛋白水平的升高(P<0.05)。结论:CCDC25可能通过调控YAP蛋白表达,进而促进非小细胞肺癌的演进。  相似文献   

20.
目的:研究WNT诱导的分泌型蛋白-3(WISP-3)在非小细胞肺癌(NSCLC)组织中的表达及其临床意义。方法:SP免疫组化法检测54例非小细胞肺癌组织和癌旁正常肺组织WISP-3的表达,并结合临床资料进行分析。结果:在NSCLC组织中WISP-3表达水平高于癌旁正常肺组织,χ2=33.75,P=0.000;WISP-3阳性表达率与肿瘤的组织学分级(χ2=6.646,P=0.010)、临床分期(χ2=6.743,P=0.009)和年龄(χ2=10.634,P=0.001)有关。结论:WISP-3对NSCLC的进展起重要作用,表达的蛋白产物可作为临床诊断的参考指标。  相似文献   

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