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1.
p-p38和VEGF在原发性肝癌中的表达及相关性研究   总被引:1,自引:0,他引:1  
魏小勇  饶荣生 《江西医药》2009,44(2):107-109
目的研究磷酸化p38(p-p38)和血管内皮生长因子(VEGF)在原发性肝癌中的表达及与临床病理特衙的关系。方法采用免疫组织化学S-P法,检测53例原发性肝癌组织,30例非癌肝组织中的p—p38和VEGF表达情况并分析其相关性及临床病理特征.结果p—p38和VEGF阳性表达率在原发性肝癌组织明显高于非癌肝组织,与患者年龄、性别、病理分型、肿块最大径等临床病理特征参数没有相关性。但与肝癌的转移、癌栓、组织分化程度有相关性,p—p38和VEGF在肝癌中的表达呈正相关r=0.458(P=0.001,P〈0.05)。结诊p-p38和VFCF讨表认存肝痛的发展及浔润转移中具有首要作用.  相似文献   

2.
目的分析垂体肿瘤转化基因(PTTG)和p27Kipl基因在原发性肝细胞性肝癌(HCC)中的表达及其,临床意义。方法应用免疫组化S—P法检测48例HCC及癌旁肝癌组织中PTTG蛋白、p27Kipl蛋白的表达情况。结果HCC、癌旁和正常肝组织的PTTG蛋白阳性表达率分别是70.8%(34/48)、91.7%(44/48),二者之间的差异有统计学意义(P〈0.05),且PTTG蛋白在癌旁中的表达明显高于在HCC中的表达(P〈0.05);HCC、癌旁组织的p27kipl蛋白阳性表达率分别是20.8%(10/48)83.3%(40/48),二者之间的差异有统计学意义(P〈0.05)。34例PTTG表达阳性组织中有10例见p27kipl表达阳性,而14例PTTG表达阴性组织中有9例见p27kip1阳性表达,二者比较差异有显著性意义(P〈0.05).结论PTTG和D27Kipl鼻常表达与HCC的发展密切相关,在HCC的发展过程中起重要的作用。  相似文献   

3.
目的研究磷酸化p38(p-p38)和血管内皮生长因子(VEGF)在原发性肝癌中的表达及与临床病理特衙的关系。方法采用免疫组织化学S-P法,检测53例原发性肝癌组织,30例非癌肝组织中的p—p38和VEGF表达情况并分析其相关性及临床病理特征.结果p—p38和VEGF阳性表达率在原发性肝癌组织明显高于非癌肝组织,与患者年龄、性别、病理分型、肿块最大径等临床病理特征参数没有相关性。但与肝癌的转移、癌栓、组织分化程度有相关性,p—p38和VEGF在肝癌中的表达呈正相关r=0.458(P=0.001,P〈0.05)。结诊p-p38和VFCF讨表认存肝痛的发展及浔润转移中具有首要作用.  相似文献   

4.
目的研究黏着斑激酶在肝细胞肝癌中的表达及其与临床病理参数、预后之间的关系。方法利用组织芯片技术和免疫组化方法检测82例肝细胞肝癌组织、81例癌旁组织和25例正常肝组织中黏着斑激酶的表达情况,并分析其与临床病理参数和预后的关系。结果黏着斑激酶在肝细胞肝癌中的表达阳性率(74.4%)高于癌旁组织(42.0%)(P〈0.01)和正常肝组织(12.0%)(P〈0.01),癌旁组织表达阳性率高于正常肝组织(P〈0.01),黏着斑激酶在肝细胞肝癌癌组织的表达与患者肿瘤转移有关(P=0.008),差异均具有统计学意义;黏着斑激酶阴性表达组生存率(71.4%)高于阳性表达组(37.7%),差异具有统计学意义(P=0.012)。结论黏着斑激酶在肝细胞肝癌中高表达,可能与肝细胞肝癌的发生、发展及预后密切相关。  相似文献   

5.
目的运用实时荧光定量PCR(qRT—PCR)技术检测miR-331—3p在肝癌细胞株和肝癌组织中的表达,探讨其在肝癌中表达的临床意义及潜在临床价值。方法采用基于2^-△△Cr的qRT—PCR检测miR-331—3p在正常肝细胞株(HL-7702)、不同侵袭转移能力的肝癌细胞株(HepG2、MHCC97-H、HCCLM3)的表达,同时收集5例正常肝组织、30例肝癌组织及癌旁组织,进行定量分析,并分析miR-331—3p与肝癌患者临床病理特征的关系。结果与正常肝细胞株相比,miR-331—3p在肝癌细胞株中表达下调,且随着肝癌细胞株侵袭转移程度增加,其表达下调越明显(P〈0.05);与正常肝组织相比。肝癌组织中miR-331—3p有不同程度的表达下调(P〈0.05),且与肝癌患者肿瘤多发结节(P=0.036)、低分化程度(P=0.035)以及伴有静脉浸润(P=0.016)等临床病理特征相关。结论miR-331-3p在肝癌的发生、发展过程可能发挥重要作用,miR-331—3p有望成为肝癌新的生物标志物或预后因子。  相似文献   

6.
目的研究细胞调控蛋白p27及其相关分子JABl在肝细胞肝癌(HCC)中的表达及意义。方法选取60例HCC及癌旁组织,10例肝血管瘤旁肝组织病例,采用免疫组化检测p27及JABl的表达。结果p27主要在癌旁高表达,而JABl蛋白在大部分HCC组织中的表达高于对应癌旁组织。JABl在HCC中表达高于癌旁和血管瘤旁肝组织。p27在正常组织和癌旁组织的表达高于HCC组织。结论JABl蛋白表达与p27呈负相关;JABl可能是通过作用于p27,使其表达及代谢发生异常,导致细胞周期失控参与了HCC的发生和发展。  相似文献   

7.
目的探讨Survivin在原发性肝细胞癌(HCC)组织中的表达及与p53的关系。方法采用Wcstern blot和RT-PCR检测43例肝癌组织、20例癌旁组织和11例正常肝组织中Survivin蛋白和mRNA的表达情况。免疫组化(SP法)检测Survivin和1353蛋白的表达情况。结果43例HCC标本中分别有30例表达Survivin(69.8%),而除1例癌旁组织外,其他癌旁组织和正常肝组织中未见Survivin表达。Survivin表达与肝癌组织的病理分级、临床分期等无明显相关。Survivin表达与1353表达亦无明显相关。结论Survivin在肝癌组织中高表达,Survivin的表达与p53基因的突变无明显关系。  相似文献   

8.
目的研究肝细胞癌(HCC)组织及癌旁组织中Survivin、Caspase-3的表达及其与细胞增殖和凋亡的关系。方法收集我院2006年1月~2007年12月肝细胞癌组织及相应癌旁组织标本70例,免疫组化SP法检测其PCNA、Survivin、Caspase-3的表达,并以PCNA阳性强度计算增殖指数(PCNA-PI),原位末端转移酶标记(TUNEL)法检测凋亡指数(AI)。结果Survivin在肝细胞肝癌中表达阳性率高于癌旁组织(P〈0.001)。其阳性表达与肿瘤大小、肿瘤细胞分化程度、门静脉癌栓有关。癌组织中Survivin表达阳性者的增殖指数PCNA-PI高于阴性者(P〈0.05),凋亡指数低于阴性者(P〈0.05)。Caspase-3在肝细胞癌中表达阳性率低于癌旁组织(P=0.05);其阳性表达与肿瘤细胞分化程度和HBsAg有关。癌组织中Caspase-3表达阳性者的增殖指数PCNA-PI低于阴性者(P〈0.05),凋亡指数高于阴性者(P=0.05)。在肝癌组织中Survivin与Caspase-3的表达呈负相关(P=0.044)。Survivin阳性肝癌患者生存率低于阴性者(P〈0.05)。Caspase-3阴性肝癌患者生存率低于阳性者(P〈0.05)。结论Survivin、Caspase-3参与了肝细胞癌的发生发展,Survivin可能通过抑制Caspase-3的活性从而发挥其抑制肝细胞癌细胞凋亡作用,影响预后。  相似文献   

9.
目的研究肝癌组织中细胞周期素E(cyclinE)、细胞周期素D1(cyclinD1)与增殖细胞核抗原(PCNA)的表达情况,探讨其在肝癌发生发展中的作用及临床意义。方法用免疫组化链霉菌素一生物素(SP)法,对术前未使用过化疗、放疗及免疫治疗的60例肝癌组织及35例癌旁肝组织进行检测。结果cyclinE、cyclinD1与PCNA的表达在肝癌组织中高于癌旁肝组织(P〈0.01),在分化差的和有转移的肝癌中表达高于分化好的和元转移的,而且cyclinE与cyclinD1的表达密切相关(P〈O.01)。结论cyclinE、cyclinD1与PCNA表达与肝癌的增殖、分化、转移有关,其表达状况可以作为判断恶性程度及预后的指标。  相似文献   

10.
目的探讨p53、p16、磷脂酰肌醇蛋白多糖-3(GPC-3)和细胞角蛋白-19(CK-19)在肝组织中的表达和临床诊断意义。方法利用免疫组化染色技术检测126份肝癌组织及84份癌周组织标本,比较p53、p16、GPC-3和CK-19在肝癌组和癌旁组病例中表达及分布,并分析其对肝癌及病情发展的临床意义。结果 p53、p16、GPC-3和CK-19在肝癌组织中的表达水平均高于癌旁正常组织,差异均有统计学意义(P〈0.05)。p53的表达水平在高分化肿瘤中最多(26.98%),p16的表达水平在中低分化程度的肿瘤中所占比例最多(18.25%),GPC-3在低分化肿瘤中所占的比例最多(31.75%),而CK-19在高分化肿瘤中比例最多(22.22%)。结论联合应用p53、p16、GPC-3和CK-19在肝癌诊断和肿瘤的分化程度的鉴别具有一定的临床诊断意义。  相似文献   

11.
To study the antitumor activity of alkaloid extracted from Oxytropis ochrocephala and its possible mechanism, we observed the effect of alkaloid on tumor weight and expression of PCNA and p53 in mice bearing H(22) hepatocellular carcinoma by means of immunohistochemistry SP method. After treatment with alkaloid from Oxytropis ochrocephala, the results showed that alkaloid administration (25 and 50 mg/kg body weight, p.o.) could inhibit H(22) hepatocellular carcinoma growth to various extent, and the rates of inhibition were 48.5% and 57.7% respectively (p<0.01). The antitumor activity of the alkaloid is in a dose dependent manner, with no signs of toxicity to weight, kidney and liver. The sections of tumor showed the number of tumor cell decreased and nucleus appeared putrescence such as nucleus atrophy, disintegrating and dissolving. Meanwhile, the expression of PCNA and mutant p53 protein positive cell numbers in mice bearing H(22) hepatocellular carcinoma also suppressed by alkaloid (p<0.05). It suggested that Alkaloid from Oxytropis ochrocephala showed antitumor effect and its possible mechanism might be associated with the expression inhibition of PCNA and mutant p53 protein. Further studies are needed to explore the antitumor activity of the other compounds of Oxytropis ochrocephala and to specify their possible mechanism of action.  相似文献   

12.
刘凯军  李茂恒  王文韬  魏娉 《河北医药》2016,(23):3537-3540
目的:检测微小RNA(miR-381)、增殖细胞核抗原(PCNA)、细胞周期蛋白D1(Cyclin D1)、p21基因在胃癌组织及癌旁正常组织中的表达,探讨miR-381在胃癌组织中表达的情况及临床意义。方法实时定量PCR技术检测85例胃癌组织、50例癌旁正常组织中miR-381、PCNA、Cyclin D1、p21的表达情况;记录患者的临床病理资料。分析miR-381与患者临床病理特征的关系;同时分析miR-381与PCNA、Cyclin D1、p21的关系。结果 miR-381在胃癌组织中表达低于癌旁组织;PCNA、Cyclin D1的mRNA在胃癌组织中高于癌旁正常组织,而p21基因的表达在胃癌组织中低于癌旁正常组织( P <0.05)。 miR-381与胃癌的分化、淋巴结转移有关( P <0.05),与胃癌其他病理特征无明显关系( P >0.05)。相关分析显示,miR-381与Cyclin D1存在负相关( r =-0.3864, P <0.05),与p21存在正相关( r =0.3223, P <0.05)。结论 miR-381与胃癌的临床病理特征有关,miR-381可能通过调节Cyclin D1、p21而参与胃癌的进展。  相似文献   

13.
BACKGROUND AND AIMS: Cyclins and cyclin-dependent kinase inhibitors play a crucial role in the control of cell cycle transitions. Enhanced expression of cyclin D2 and reduced expression of p27kip1 (p27) have been implicated in the pathogenesis of cancer. Because intestinal metaplasia has been regarded as a pre-malignant lesion, we investigated the expression of cyclin D2 and p27 in Helicobacter pylori-associated chronic gastritis with and without intestinal metaplasia, and followed the changes after H. pylori eradication. METHODS: Expression of cyclin D2 and p27 was studied by immunohistochemistry in 59 patients (including 35 patients with intestinal metaplasia) and in 10 gastric cancer patients. Among them, 29 H. pylori-infected patients had serial gastric biopsies taken before and at 1-year after eradication of H. pylori. RESULTS: Expression of cyclin D2 was significantly higher in gastric cancers when compared to their adjacent non-tumour tissues (median score 3 vs. 1, P=0.015). Over-expression of cyclin D2 was detected in H. pylori-associated chronic gastritis and intestinal metaplasia, which was reduced after eradication of the organism (median score 2 vs. 1, P=0.037 in chronic gastritis; median score 2 vs. 0, P=0.008 in intestinal metaplasia). While the normal gastric mucosa showed strong p27 expression, five of the 10 gastric cancer tissues exhibited reduced p27 expression (P=0.039). Diminished p27 expression was also seen in intestinal metaplasia, which was restored 1-year after H. pylori eradication (eight out of 16 vs. one out of 16, P=0.018). Reduced expression of p27 was frequently associated with increased cyclin D2 expression in H. pylori-associated intestinal metaplasia (P=0.02). CONCLUSION: Over-expression of cyclin D2 and reduced expression of p27 are closely linked to H. pylori-associated intestinal metaplasia. Eradication of H. pylori infection reverses the aberrant expression of cyclin D2 and p27 in intestinal metaplasia.  相似文献   

14.
目的:考察 cyclinD1、p73和 p27在结直肠癌组织中的表达及临床意义。方法选取60例结直肠癌患者肿瘤组织和30例正常组织中 cyclinD1、p73和 p27的表达水平及与临床指标的相关性。结果 cyclinD1蛋白在结直肠癌组织中的表达率为68.3℅(41/60)显著高于正常组织中的23.3℅(7/30)( P ﹤0.05),其阳性率与侵润深度、淋巴转移和 dukes 分期相关( P ﹤0.01)。p73蛋白在结直肠癌组织中的表达率为58.3℅(35/60)显著高于正常组织中的3.3℅(1/30)( P ﹤0.01),其阳性率与分化程度、淋巴转移和 dukes 分期相关( P ﹤0.05)。p27蛋白在结直肠癌组织中表达率为53.3℅(32/60),显著低于正常组织中的80.0℅(24/30)( P ﹤0.05),其阳性率与分化程度、淋巴转移和 dukes 分期相关( P ﹤0.01)。结论 cyclinD1、p73和 p27蛋白在结直肠癌组织中的表达具有特异性,对三者进行检测有助于预后判断。  相似文献   

15.
BACKGROUND: Cell cycle progression and transition of cells from the first gap phase (G1) to the DNA replication phase (S) depend on a finely tuned balance between the levels of cyclins, cyclin-dependent kinases (CDKs) and cyclin-dependent kinase inhibitors (CDKIs). MATERIALS AND METHODS: We analyzed 57 squamous cell invasive carcinomas of the larynx, 10 in situ carcinomas, 56 cases of dysplasia, 11 papillomas and 26 keratosis. We investigated: a) the immunohistochemical expression of CDKIs, p21 and p27, b) any possible relation between normal and abnormal immunoprofiles of these proteins and p53 protein and proliferation status as determined by the expression of Ki67 and PCNA, and c) their presence in pre-malignant and malignant laryngeal lesions. RESULTS: Expression of p21 and p27 was observed in 58.9% and 89.5% of the laryngeal carcinomas, respectively. High levels of p21 were significantly correlated with increased cyclin D (p=0.001), cyclin E (p<0.001) and Ki67 (p<0.001), while increased expression levels of p27 were associated with p53 accumulation (p=0.02) and with increased proliferation status as expressed by Ki67 (p=0.05). CONCLUSION: Due to the increased expression levels of CDKIs in laryngeal carcinomas, we suggest the existence of a mechanism by which tumor cells tolerate the inhibitory effect of these proteins on cell cycle progression.  相似文献   

16.
目的研究乏氧诱导因子-1α在原发性肝细胞癌组织、癌旁肝硬化组织、非癌肝硬化组织及正常肝组织中的表达状态。方法收集2009年3月~2010年9月在笔者所在医院诊断原发性肝细胞癌而行手术治疗的56例肝癌组织标本,同时收集合并有肝硬化背景的癌旁肝组织27例,因乙肝肝硬化门脉高压症而行门奇断流术的非癌肝硬化组织23例及11例取自肝血管瘤周围或肝外伤后切除的肝组织作为对照。通过免疫组织化学技术SP染色方法检测HIF-lα在4种肝脏组织中的蛋白表达情况。结果在肝细胞癌组织中HIF-lα蛋白的阳性表达率为71.4%,明显强于癌旁肝硬化组织中(48.1%)的表达,两者比较,差异有统计学意义(P<0.05);癌旁肝硬化组织中的阳性表达率又强于非癌肝硬化组织中的表达(17.4%),两者比较,差异有统计学意义(P<0.05);但非癌肝硬化组织与正常肝组织(9.1%)比较,HIF-lα的表达则差异无统计学意义(P>0.05)。结论 HCC中存在着乏氧现象,并以其为始动因素诱导了调控因子HIF-lα基因的过度表达。  相似文献   

17.
Given the enormous impact of HCC on the patients' quality of life and healthcare economics, the current study was conducted to investigate the potential ability of adiponectin to reverse established HCC and to investigate the underlying mechanisms which control the chemotherapeutic and hepatoprotective effects. HCC was induced in Male Sprague Dawely rats by I.P. injection of thioacetamide(200 mg/kg) 3 times/week for 14 weeks.HCC development was confirmed by histopathological examination and assessment of serum levels of α-fetoprotein (AFP). Adiponectin was administered (5 μg/kg, I.P.) starting from week 13 of the experiment and for further 4 weeks. Adiponectinadministration revealed a significant antitumor activity with significant improvement in liver functions and oxidative status. Nevertheless, pathological features as cirrhosis, dysplastic changes, and tumoral nodules were significantly attenuated with significant enhancement in hepatic caspase-3 immunostaining. Mechanistically, adiponectin administration was associated with significant restoration of p53 activity; which increased by 133%, with a reduction in HCC-induced expression of-JNK which decreased by 53%as well as a significant enhancement of hepatic TRAIL and caspase-8 activities which increased by 27% and 20% respectively. In conclusion; Adiponectin can be proposed as a promising therapy for HCC. Adiponectin's tumoricidal activity can be partially mediated by blocking HCC-induced reduction in p53 expression as well as reactivation of TRAIL signaling and induction of apoptotic pathway providing more protection for the body against the tumor.  相似文献   

18.
陶然  李厚祥  李鹏  芮理 《江苏医药》2006,32(3):230-231
目的研究p27和p53在乳腺癌表达的意义。方法以免疫组化法分别检测56例乳腺癌和36例乳腺良性肿瘤患者p27及p53的表达水平。结果(1)p27和p53均与乳腺癌的TNM分期相关。p27的表达水平还与p53相关。(2)生存率的比较分析结果,p27高表达组5年无病生存率为91.9%,明显优于低表达组(42.1%)(P〈0.01),p53高表达组5年无病生存率为61.3%,明显低于低表达组(92.0%)(P〈0.01)。结论检测p27和p53对乳腺癌的预后有重要价值。  相似文献   

19.
目的 :研究 PCNA基因和 P2 7kipl基因与膀胱癌生物学行为关系。方法 :采用免疫组织化学方法检测 5 0例膀胱移行细胞癌 (TCC)中的 PCNA、P2 7kipl基因的表达 ,分析各检测指标与膀胱移行细胞癌分级、临床分期间的关系。结果 :PCNA指数 PI均数在膀胱移行细胞癌中为 (48.9± 2 1.6 ) % ,PI均数随膀胱癌的分期、分级升高而升高。 P2 7kipl基因的阳性表达率为 5 8.0 % (2 9/ 5 0 )。其阳性表达率随膀胱癌的分期、分级升高而降低。 P2 7kipl蛋白阳性组中 PI均数显著低于 P2 7kipl蛋白阴性组 (P<0 .0 5 )。结论 :联合检测 PCNA和 P2 7kipl基因表达有助于更准确解释和描述膀胱癌的生物学行为。  相似文献   

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