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1.
  目的  探索与下咽鳞癌生长、转移及预后相关的分子标记物,为开发下咽鳞癌新的疗法提供理论依据。  方法  分析Oncomine肿瘤芯片数据库中细胞分裂周期相关蛋白3(cell division cycle associated protein 3,CDCA3)在头颈部鳞癌及癌旁组织中的表达差异,检测下咽鳞癌及癌旁组织中CDCA3的表达,分析其表达水平与下咽鳞癌患者临床病理特征及预后的关系。  结果  通过分析Oncomine肿瘤芯片数据库中CDCA3的DNA拷贝数,发现在肿瘤基因图谱(TCGA)数据集中,相比全血及正常头颈部组织,CDCA3的DNA拷贝数在头颈鳞癌组织中显著上调(P < 0.05)。下咽鳞癌组织中CDCA3的mRNA相对表达水平较癌旁正常黏膜表达水平升高(P < 0.05)。CDCA3的蛋白表达水平与肿瘤大小、淋巴结转移及TNM分期等临床病理特征相关(P < 0.05)。Kaplan-Meier生存曲线分析显示CDCA3阳性表达组患者的总生存期显著低于CDCA3阴性表达组(P < 0.05)。  结论  CDCA3在下咽鳞癌组织中高表达,与下咽鳞癌患者原发肿瘤大小、TNM分期以及淋巴结转移情况密切相关,是影响患者预后的独立危险因素。   相似文献   

2.
目的 研究骨桥蛋白(osteopontin,OPN)在食管鳞癌患者组织中的表达及临床意义。方法 分别选取120例食管鳞癌癌组织、46例癌旁不典型增生组织和120例正常食管黏膜组织,分别用免疫组化法检测各种组织中OPN蛋白的表达情况,并分析其临床意义。结果 在食管鳞癌癌组织、癌旁不典型增生组织和正常食管黏膜组织中,OPN的阳性表达率分别为76.67%(92/120)、34.78%(16/46)和0(0/120)。食管鳞癌的临床分期、淋巴结转移、癌组织的浸润深度均与OPN蛋白的阳性表达明显相关(P均〈0.05)。食管鳞癌组织中OPN蛋白阳性表达组与阴性表达组患者的5年生存率分别为10.7%及28.6%(P〈0.05)。结论 OPN蛋白在食管鳞癌的发生、发展中起到十分重要的作用,检测OPN蛋白的表达具有重要临床意义。  相似文献   

3.
目的研究骨桥蛋白(osteopontin,OPN)及表皮生长因子受体(epidermal growth factor receptor,EGFR)在食管鳞癌中的表达及其临床意义。方法应用S.P免疫组化技术检测60例食管鳞癌及其相应的癌旁正常组织中OPN和EGFR的表达,并随访6-18个月。结果食管鳞癌组织中OPN和EGFR阳性表达率为80%和71.7%,与癌旁正常组织表达率0和18.3%差异有统计学意义(P〈0.05);OPN和EGFR的表达与肿瘤浸润深度、肿瘤临床分期、淋巴结转移程度及生存率有关(P〈0.05),且EGFR与分化程度有关(P〈0.05);食管鳞癌组织中OPN与EGFR的表达呈正相关(r=0.333,P〈0.05)。结论OPN和EGFR在食管鳞癌组织中的表达与食管鳞癌的发生、发展及预后相关,二者的联合检测可为食管鳞癌的诊断和治疗提供重要信息。  相似文献   

4.
OBJECTIVE: Osteopontin (OPN) is a secreted integrin-binding glycophosphoprotein that may have a role in head and neck squamous cell carcinoma (SCC). To evaluate the clinical significance of OPN in esophageal squamous cell carcinoma (ESCC), we compared plasma OPN levels with those of common tumor markers. METHODS: Preoperative plasma OPN levels were measured by enzyme immunoassay in 103 ESCC patients. Serum SCC antigen, Cyfra 21-1, and carcinoembryonic antigen (CEA) levels were also measured routinely at admission by radioimmunoassay. RESULTS: Plasma OPN levels ranged from 82.8 to 1,980 ng/ml. High OPN level was associated with lymph node metastasis (p = 0.05), but not with tumor histology or depth of invasion. The overall survival of the patients with high OPN levels was worse than that of those with low OPN levels (p = 0.02). SCC antigen and Cyfra 21-1 levels were associated with the depth of tumor invasion, the tumor diameter, lymph node metastasis, and the overall survival, but CEA was not associated with these clinicopathological factors. Combined evaluation of OPN plus Cyfra 21-1 or OPN plus SCC antigen was useful as an independent prognostic indicator. CONCLUSION: Measurement of the plasma OPN level, as well as serum SCC antigen and Cyfra 21-1, may help to predict the progression of ESCC.  相似文献   

5.
6.
 目的 探讨骨桥蛋白(osteopontin, OPN)在卵巢恶性肿瘤组织中的表达及其与临床病理特征的关系。 方法 采用免疫组化方法检测OPN在54例卵巢恶性肿瘤组织,20例交界性卵巢肿瘤组织,20例良性卵巢肿瘤组织和10例正常卵巢组织中的表达。 结果 OPN在恶性卵巢肿瘤组织中的阳性表达率为77.80%,显著高于交界性卵巢肿瘤的35%和良性卵巢肿瘤的15%,差异有统计 学意义(P<0.01)。OPN在正常卵巢组织中无表达。OPN在Ⅲ~Ⅳ期卵巢肿瘤组织中的表达明显高于Ⅰ~Ⅱ期(P=0.029);在有卵巢外转移组中的表达明显高于无转移组(P=0.019)。OPN表达阳性组患者的累积生存率明显低于OPN阴性组(P=0.038)。OPN表达是患者生存时间的独立影响因素。 结论 OPN在卵巢恶性肿瘤的发生、发展、浸润、转移中起重要作用。OPN的表达可作为判断卵巢恶性肿瘤患者预后的指标之一。  相似文献   

7.
BACKGROUND: Osteopontin (OPN) is a secreted glycoprotein that is detectable in human body fluids. Its increased expression has been found in many malignancies, and a stimulatory effect on human prostate carcinoma cells in vitro has been demonstrated. Plasma OPN levels have been associated with tumor burden and survival in patients with metastatic breast carcinoma. The authors explored these associations in men with hormone-refractory prostate carcinoma (HRPC). METHODS: Plasma samples from 100 men with HRPC were collected. OPN was measured using an antigen-capture enzyme-linked immunosorbent assay technique. Multivariable analyses were performed to identify predictors of OPN and survival. RESULTS: At the time of OPN sampling, the median patient age was 73 years (range, 50-86 years), and 92% of patients had metastases. The median plasma OPN level was 198.5 ng/mL (range, 15.0-2363.0 ng/mL), the median prostate specific antigen level was 67.8 microg/L (range, 0.1-7550.0 microg/L), and the median survival was 13.7 months. OPN plasma levels were higher in patients with versus patients without bone metastases (P = 0.024). Multivariable modeling demonstrated an independent association of the OPN level with alkaline phosphatase, hemoglobin, and creatinine levels. The log-transformed OPN level (hazard ratio [HR], 2.38; P < 0.0001), performance status (HR, 2.43; P = 0.007), and a history of prior radiotherapy for localized prostate carcinoma (HR, 0.48; P = 0.0229) were independent predictors of survival in a Cox multivariate model. CONCLUSIONS: In this study, in men with established HRPC, the plasma OPN level was associated with the presence of metastases to bone and with other measures of tumor burden, and it was correlated independently and negatively with survival.  相似文献   

8.

Background

Our previous characterization of a human breast tumor metastasis model identified several candidate metastasis genes. The expression of osteopontin (OPN) correlated with the metastatic phenotype, whereas thrombospondin-1 (TSP-1) and tyrosinase-related protein-1 (TYRP-1) correlated with the nonmetastatic phenotype of independent MDA-MB-435 cell lines implanted orthotopically into athymic mice. The aim of the present study was to examine the cellular distribution of these molecules in human breast tissue and to determine whether the relative expression level of these three genes is associated with human breast tumor metastasis.

Methods

Sixty-eight fresh, frozen specimens including 31 primary infiltrating ductal carcinomas, 22 nodal metastases, 10 fibroadenomas, and five normal breast tissues were evaluated for OPN expression, TSP-1 expression and TYRP-1 expression. Immunohistochemistry was performed to monitor the cellular distribution and to qualitatively assess expression. Quantitative analysis was achieved by enrichment of breast epithelial cells using laser-capture microdissection and subsequent real-time, quantitative PCR.

Results

The epithelial components of the breast tissue were the source of OPN and TSP-1 expression, whereas TYRP-1 was present in both the epithelial and stromal components. Both OPN and TSP-1 expression were significantly higher in malignant epithelial sources over normal and benign epithelial sources, but no difference in expression levels was evident between primary tumors with or without metastases, nor between primary and metastatic carcinomas.

Conclusion

Elevated expression of OPN and TSP-1 may play a role in the pathogenesis of breast cancer. The multiplex analysis of these molecules may enhance our ability to diagnose and/or prognosticate human breast malignancy.  相似文献   

9.
Xie M  Zhou L  Zhou JQ  Tao L 《中华肿瘤杂志》2004,26(9):539-542
目的 探讨 6 70 0 0层黏连蛋白受体 (LN R)在喉癌侵袭转移过程中的作用。方法 采用逆转录聚合酶链反应 (RT PCR)方法检测 2 0例喉鳞状细胞癌及其正常组织标本中 6 70 0 0LN RmRNA的表达 ,分析其水平与临床病理特征间的关系。采用流式细胞术检测人喉癌细胞系AMC HN 8细胞膜表面 6 70 0 0LN R的表达。应用体外黏附实验和Boyden小室体外侵袭实验 ,观察 6 70 0 0LN R单克隆抗体 (MLuC5 )对AMC HN 8细胞黏附和侵袭能力的影响。结果 人喉鳞状细胞癌肿瘤组织中6 70 0 0LN RmRNA的表达显著高于正常组织 (P <0 .0 5 ) ;伴颈淋巴结转移的喉鳞癌组织与无颈淋巴结转移的喉鳞癌组织相比 ,伴颈淋巴结转移的喉鳞癌组织 6 70 0 0LN RmRNA的表达水平更高 (P <0 .0 5 ) ;6 70 0 0LN RmRNA的表达与肿瘤分化程度密切相关 ,分化差者表达水平更高 (P <0 .0 5 )。流式细胞术显示 ,AMC HN 8细胞 6 70 0 0LN R阳性表达率为 (80 .9± 0 .9) %。MLuC5抑制了AMC HN 8细胞对层黏连蛋白 (LN)的黏附 ,MLuC5处理 6 0min和 12 0min时 ,黏附抑制率分别为 5 7.1%和 6 3.2 %。MLuC5降低了AMC HN 8细胞对基膜的侵袭能力。结论  6 70 0 0LN R高表达的喉鳞癌细胞侵袭性更强 ,6 70 0 0LN R单克隆抗体对喉癌转移治疗可能具有应用价值  相似文献   

10.
目的:通过对喉鳞状细胞癌组织中Shc3表达情况的检测,探讨其与喉鳞状细胞癌患者临床病理特征及预后的关系。方法:Oncomine数据库挖掘相关Shc3的数据。采用免疫组织化学方法(SP法)检测160例喉鳞状细胞癌组织和50例声带鳞状细胞乳头状瘤组织中Shc3的表达水平。分析Shc3表达与喉鳞状细胞癌患者的临床病理特征的关系;采用Kaplan-Meier法分析Shc3表达与喉鳞状细胞癌患者预后的关系。结果:Oncomine数据库的癌症异常值分析(cancer outlier profile analysis, COPA)显示Shc3与特定的头颈部鳞状细胞癌相关。免疫组织化学结果显示Shc3在喉鳞状细胞癌组织中的表达水平高于声带鳞状细胞乳头状瘤组织(P<0.05)。喉鳞状细胞癌组织中Shc3蛋白的表达水平与浸润深度、淋巴结转移及临床分期显著相关(P<0.05),而与性别、年龄、肿瘤大小和分化程度无关(P>0.05)。生存分析表明,Shc3表达与喉鳞状细胞癌患者的预后密切相关(P<0.05)。结论:Shc3在喉鳞状细胞癌组织中高表达,可能参与了喉鳞状细胞癌的发生与发展,...  相似文献   

11.
Antiapoptosis and invasion are the causes for the failure of conventional radiotherapy and chemotherapy in human renal carcinomas. Osteopontin (OPN), a ligand for vß3 integrin and CD44 receptors, is a phosphorylated glycoprotein with diverse functions including tumorigenesis and tumor cell metastasis. Recently, OPN has been detected in human renal carcinomas and assessed as a potential prognostic marker of renal carcinomas. However, the function and mechanism of OPN in renal carcinomas remain unknown. In this study, we used OPN siRNA to silence the expression of OPN in renal carcinoma Caki-1 cells. Silent effect showed that sequence-specific siRNA targeting OPN suppressed OPN mRNA expression by 81% and OPN protein level by 91% in vitro. The apoptosis ability was significantly increased while the invasion ability was decreased in Caki-1 cells transfected with OPN siRNA. Western blot demonstrated that the effects of OPN silence were significantly accompanied by the activation of mitochondria-related apoptosis pathway involving cytochrome c, Apaf-1, cleaved caspase-3 and Bcl-2/Bax, and the downregulation of invasion-related proteins of MMP-2 and uPA expression. These results suggest that the downregulation of OPN expression can induce apoptosis increase and invasion suppression in renal carcinoma Caki-1 cells through mitochondria-related apoptosis pathway and MMP-2 and uPA-related invasion proteins, respectively.  相似文献   

12.
Prognostic significance of osteopontin expression in human prostate cancer   总被引:11,自引:0,他引:11  
To test the hypothesis that expression of osteopontin (OPN), an integrin-binding glycoprotein, can independently predict the potential aggressiveness of prostate cancer, the status of OPN expression in benign and malignant prostate cancer cell lines and tissues was analysed by Western blot and immunohistochemistry. Amongst the four prostate cell lines analysed, the level of OPN expressed in the benign PNT-2 cells was set at 1, the relative level of OPN expressed in the weakly malignant cell line LNCaP was increased to 1.5. In the highly malignant cell lines Du-145 and PC-3, the level of OPN expression was further increased to 2.9 and 4.4, respectively. An increased expression of OPN was also observed in the prostate tissue samples. When the level of OPN in normal tissue was set at 1, its level in benign prostate hyperplasia (BPH) was similar at 0.99 +/- 0.2, whereas the OPN level in the highly malignant carcinoma tissue was greatly increased by nearly 6-fold to 5.9 +/- 0.3. Amongst the 116 cases examined immunocytochemically, of the 10 normal cases, 3 (30%) were unstained and 7 (70%) stained weakly positive (+). Amongst the 36 BPH samples, 32 (89%) stained weakly positive (+) and 4 (11%) were unstained (-). For the 70 carcinomas analysed, 31 (44%) stained strongly positive (+++), 20 (29%) stained moderately positive (++) and 19 (27%) stained weakly positive (+). These results showed that the level of OPN expressed between the normal and the BPH samples was not significantly different (Fisher's exact test, p = 0.16). However, in comparison to that in the BPH samples, the expression of OPN in the carcinoma tissues was significantly increased (Chi-square test, p < 0.0001). Kaplan-Meier survival analysis showed that the increased level of OPN expression was significantly (n = 70, p = 0.03) associated with reduced survival time of the patients. The OPN expression was increased with the increasing Gleason scores of the carcinomas (Chi-square test, p < 0.001). The results in our study support our hypothesis and suggest that the increased OPN level may be involved in the malignant transformation of prostate epithelial cells and OPN expression level is an important determinant for patient survival.  相似文献   

13.
The objectives of this study are to investigate the expressions of matrix metalloproteinase inducing factor (CD147), matrix metalloproteinase-2 (MMP-2), matrix metalloproteinase-9 (MMP-9) in laryngeal tumor tissues and its significant correlation with tumor infiltration, metastasis and prognosis. Laryngeal tumor tissue from 48 laryngeal cancer patients with complete clinical information was collected. The laryngitis tissue from 15 patients were collected as control group. Immunohistochemical analysis for CD147, MMP-2 and MMP-9 was performed for all the tissue. The results showed the expression rates of CD147, MMP-2 and MMP-9 in laryngeal carcinoma were 87.5 %, 75.0 % and 79.2 % respectively, significantly higher than those (26.7 %, 6.7 %, and 33.3 % respectively) in the control group are (P?<?0.01). High expression of CD147, MMP-2 and MMP-9 related to the clinical stages and lymphatic metastasis of laryngeal carcinoma. Univariate survival analysis showed that the 5-year survival of laryngeal carcinoma patients with low expression of CD147, MMP-2 and MMP-9was 83.3 %, 83.3 % and 90 % respectively, while the patients with high expression had 5-year survival at 25 %, 7.7 % and 18.2 % respectively (P?<?0.05). Multiple regression analysis showed that high expression of MMP-9 was independently associated with poor prognosis (P?<?0.05). High expression of CD147, MMP-2 and MMP-9 were related with laryngeal carcinoma invasion and metastasis. High expressions of CD147, MMP-2 and MMP-9 were all predictive factors of poor prognosis of laryngeal carcinoma.  相似文献   

14.
 目的 探讨各种肿瘤转移促进基因在不同恶性肿瘤组织中的表达规律。方法 采用流式细胞术对 117例恶性肿瘤患者肿瘤组织的CD4 4S、CD4 4V5、CD4 4V6、cerbB 2基因编码蛋白表达水平进行了检测。结果 恶性肿瘤患者瘤组织细胞的CD4 4V5 +、CD4 4V6 +和cerbB 2 +细胞表达率均显著高于正常对照 (P <0 .0 1或P <0 .0 5 )。在各种肿瘤之间 ,不同肿瘤转移促进基因编码蛋白的表达水平有显著区别 (P <0 .0 1或P <0 .0 5 )。结论 各种肿瘤转移促进基因编码蛋白在不同恶性肿瘤组织中的表达水平明显不同 ,这提示不同肿瘤的转移机制可能不同。  相似文献   

15.
16.
目的研究RUNX3与OPN在食管鳞癌发生、发展、浸润和转移中的作用以及临床意义。方法免疫组化检测60例食管鳞癌病人的食管正常黏膜组织、癌旁不典型增生组织及鳞癌组织中RUNX3蛋白和OPN蛋白的表达情况。结果RUNX3在正常食管黏膜组织、癌旁不典型增生组织及食管癌组织中分别为78.33%(47/60)、43.48%(10/23)、31.67%(19/60)。RUNX3的表达与食管鳞癌浸润深度和分期均明显相关(P〈0.05)。OPN在正常食管黏膜组织、癌旁不典型增生组织及食管癌组织中分别为0%(0/60)、34.78%(8/23)及76.67%(46/60),OPN的表达与食管鳞癌浸润深度、淋巴结转移和分期均明显相关(P〈0.05)。RUNX3和OPN在食管鳞癌组织、癌旁不典型增生及正常食管黏膜组织中的表达呈明显的负相关(P〈0.05)。结论两者联合检测对探讨食管鳞癌的发生、发展、浸润、淋巴结转移及预后判断可能会有更大的意义。  相似文献   

17.
目的:探讨人喉鳞状细胞癌(LSCC)组织中OPN表达,分析其临床病理学意义,及OPN下调后对喉癌细胞株Hep-2生长和侵袭的生物学行为影响。方法:免疫组织化学SP法检测44例喉鳞状细胞癌及癌旁组织手术切除标本OPN的表达,结合喉癌患者的临床病理学特征进行分析。OPN的RNA干扰慢病毒载体(LV-shOPN)转染Hep-2细胞,蛋白质印迹法检测OPN的表达;MTT法检测Hep-2细胞增殖;Transwell侵袭实验检测Hep-2细胞的侵袭力。结果:44例喉癌和癌旁组织相对正常组织中OPN表达阳性率为75.0%(33例)和13.6%(6例),差异有统计学意义,P=0.000;OPN的表达与颈部淋巴结转移、临床分期、病理组织学分级有关,与性别、年龄、原发部位无相关性;体外构建的LV-shOPN能有效抑制Hep-2细胞中OPN蛋白的表达(P=0.117),抑制Hep-2细胞的增殖(P=0.026)和侵袭力(P=0.135)。结论:OPN可能参与了喉癌的发生、发展和转移,有可能成为判断预后的重要生物学标志;LV-shOPN能够有效抑制Hep-2细胞的生长和侵袭力,可望为喉癌治疗提供一定的理论基础。  相似文献   

18.
何嵘  刘永煜 《中国癌症杂志》2015,25(10):812-816
背景与目的:骨桥蛋白(osteopontin,OPN)是一种分泌型磷酸化糖蛋白,在多种肿瘤组织中异常高表达,与肿瘤的发生、发展及预后有密切关系。当肿瘤细胞侵袭细胞外基质时,OPN可通过NF-κB依赖的信号转导通路促进肿瘤细胞高表达基质金属蛋白酶(matrix metal protease,MMPs),引起细胞基底膜和细胞外基质降解,从而导致肿瘤发生浸润和转移。该研究通过检测肺鳞状上皮细胞癌(lung squamous cell carcinoma,SCC)患者肿瘤组织中OPN的蛋白水平,研究其与各临床指标的关系及其意义。方法:采用免疫组织化学染色法检测265例石蜡包埋的肺SCC组织和24例正常肺组织中OPN蛋白表达水平。结果:OPN在肺SCC组织表达阳性率为64.5%,显著高于正常肺组织(阳性率为29.2%,P<0.001)。OPN在肺SCC晚期(Ⅲ+Ⅳ期)表达阳性率为78.4%,显著高于早期(Ⅰ+Ⅱ期)组织(阳性率为54.5%,P<0.001)。在T3~4分期的肺SCC组织中OPN表达阳性率为76.9%,显著高于T1~2分期(59.4%,P=0.007)。OPN的表达与肺SCC的淋巴结转移情况显著相关,在有淋巴结转移的癌组织中表达阳性率为73.4%,高于无淋巴结转移的癌组织(阳性率为51.4%,P<0.001)。结论:OPN参与肺SCC的发生、发展和淋巴结转移,提示其在肺SCC的诊断、判断预后及治疗方面具有重要参考价值。  相似文献   

19.
目的:研究喉鳞状细胞癌组织Caveo-lin-1的表达情况及其与HPV感染之间关系,探讨两者对喉鳞癌生物学行为的影响。方法:分别应用免疫组织化学和原位杂交方法检测喉鳞癌组织中Caveolin-1蛋白及HPV感染的情况,统计学分析两者之间的相关性。结果:Caveolin-1蛋白在喉鳞癌和癌旁组织中的表达率分别为71.2%和9.5%,两者表达差异有统计学意义,P<0.05;Caveolin-1蛋白的表达程度与病理类型、TNM分期、转移相关。喉鳞癌组织HPV感染阳性率为55.1%,癌旁组织为21.4%,两者表达差异有统计学意义,P<0.05;HPV感染与患者年龄、病理类型、TNM分期和转移均无关。喉鳞癌Caveolin-1表达与HPV感染之间呈正相关表达(r=0.62,χ2=10.40,P<0.05)。结论:喉鳞癌组织Caveolin-1表达明显增高并与肿瘤的浸润和转移行为有关,Caveolin-1为判断喉鳞癌生物学的指标之一;HPV感染是喉鳞癌发生的高危因素,并且Caveolin-1与HPV两者之间存在协同作用。  相似文献   

20.
目的:检测OPN在胆管腺癌、癌旁胆管组织中的表达,了解OPN在胆管腺癌组织中的表达及其与预后的关系.方法:采用免疫组化SP法检测OPN在44例胆管腺癌、44例癌旁胆管组织中的表达情况,分析OPN与胆管癌临床病理参数的关系,并对患者进行随访.结果:OPN在胆管腺癌、癌旁胆管组织中表达阳性率分别为68.2%(30/44)、27.3%(12/44),在胆管腺癌组织中表达阳性率明显高于癌旁胆管组织(P<0.05).OPN在胆管腺癌组织中的表达与胆管癌浸润深度、淋巴结转移相关(P<0.05),差异有统计学意义.OPN阳性表达患者术后5年总体生存率明显低于阴性患者(P=0.015).结论:OPN在胆管腺癌组织中高表达,与胆管癌的侵袭、转移及预后密切相关,可作为胆管腺癌的参考指标,对胆管腺癌的诊断和预后评估具有重要意义.  相似文献   

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