117例乳腺癌组织中COX-2和VEGF-C表达及临床意义

目的:分析117例乳腺癌患者癌组织中环氧化酶-2(COX-2)和血管内皮生长因子-C(VEGF-C)表达和两者的相关性,探讨其与临床病理特征,淋巴结转移及预后的关系.方法:收集117例乳腺癌患者的一般情况、临床病理特征和癌组织蜡块,构建乳腺癌组织芯片.应用免疫组化SP法检测COX-2和VEGF-C 的表达. 结果: 117 例乳腺癌组织中COX-2、VEGF-C表达分别为 55.8%、58.1%,且二者呈正相关(r=0.356,P<0.001).COX-2 和VEGF-C的表达均与临床分期、淋巴结转移及有否复发呈正相关,与肿块大小,PR,病理类型,组织学分级无关.COX-2的表达还与ER、Her-2表达呈正相关.结论:COX-2和VEGF-C在乳腺癌组织中均呈高表达且两者呈正相关,检测两者对评估乳腺癌患者的预后有一定的临床意义.     

胃癌组织COX-2、VEGF-C表达与淋巴结转移及预后关系的研究

目的:探讨环氧化酶-2(cyclooxygenase-2,COX-2)、血管内皮生长因子C(VEGF-C)在胃癌组织中的表达及其与淋巴管生成、淋巴结转移及预后的关系.方法:采用免疫组织化学SABC法检测 51例胃癌及相应的癌旁组织COX-2、VEGF-C及受体VEGFR-3表达,计数肿瘤内淋巴管密度(LVD),并结合临床病理特征和随访资料进行分析.结果:胃癌组织COX-2、VEGF-C表达阳性率分别为62.8%(32/51),60.7%(31/51).COX-2表达与VEGF-C(r=O.74,P＜0.05)、临床分期(r=0.34,P＜0.05)、淋巴管密度(r=0.69,P＜0.01)和淋巴结转移(r=0.57,P＜0.01)呈正相关,与病理分化呈负相关(r=-0.58,P＜0.01).VEGF-C表达与淋巴管密度(r=0.45,P＜0.01)、淋巴结转移呈正相关(r=0.46,P＜0.05).随访5年,胃癌组织COX-2表达与生存率呈负相关,COX-2表达阴性组5年生存率(36.8%)显著高于COX-2表达阳性组(15.6%)(P＜0.05).结论:在胃癌组织中,COX-2、VEGF-C高表达,COX-2与VEGF-C、淋巴管密度、淋巴结转移呈正相关.推测COX-2通过诱导VEGF-C表达参与淋巴结转移.胃癌组织COX-2检测可能对推测预后具有重要意义.     

117例乳腺癌组织中COX-2和VEGF—C表达及临床意义

目的：分析117例乳腺癌患者癌组织中环氧化酶-2（COX-2）和血管内皮生长因子-C（VEGF—c）表达和两者的相关性,探讨其与临床病理特征,淋巴结转移及预后的关系。方法：收集117例乳腺癌患者的一般情况、临床病理特征和癌组织蜡块,构建乳腺癌组织芯片。应用免疫组化SP法检测COX-2和VEGF—C的表达。结果：117例乳腺癌组织中COX-2、VEGF—C表达分别为55．8％、58．1％,且二者呈正相关（r=0．356,P〈0．001）。COX-2和VEGF—C的表达均与临床分期、淋巴结转移及有否复发呈正相关,与肿块大小,PR,病理类型,组织学分级无关。COX-2的表达还与ER、Her-2表达呈正相关。结论：COX-2和VEGF—C在乳腺癌组织中均呈高表达且两者呈正相关,检测两者对评估乳腺癌患者的预后有一定的临床意义。     

乳腺癌组织中COX-2、TRX-1表达及其预后意义

目的:应用免疫组化法,检测COX-2、TRX-1在乳腺癌组织中表达,探讨COX-2、TRX-1表达与乳腺癌临床病理特征及预后因素的关系.方法:122例乳腺癌组织石蜡标本制作成乳腺癌组织芯片.免疫组化sP法检测COX-2、TRX-1表达.所有患者均接受规范性手术、术后辅助化疗及放疗,激素受体阳性病人接受5年的内分泌治疗.从手术日期到复发转移或随访截止日期(2008年7月)确定为患者无病生存期.共有45例复发转移病例.结果:122例乳腺癌组织中COX-2、TRX-1均呈高表达,分别为58.2%、54.1%,且二者表达呈正相关(r=0.286,P=0.001);COX-2表达与临床分期(r=0.193,P=0.033)、肿块大小(r=0.192,P=0.034)及淋巴结转移(r=0.186,P=0.040)呈正相关,TRX-1表达与临床分期(r=0.206,P=0.023)、肿块大小(r=0.236,P=0.009)呈正相关,与淋巴结转移(r=0.175,P=0.054)不相关.COX-2或TRX-1表达与无病生存期呈负相关(P=0.027,P=0.046);COX-2和TRX-1共表达与无病生存期呈负相关(P=0.017).结论:乳腺癌组织中COX-2、TRX-1均呈高表达,两者与乳腺癌患者预后密切相关;COX-2、TRX-1表达呈正相关,推测乳腺癌组织中TRX-1可能参与COX-2调节.     

乳腺癌组织VEGF-C表达临床意义的研究

目的:观察乳腺癌组织血管内皮生长因子-C(VEGF-C)的表达与淋巴结转移的相关性,明确VEGF-C能否作为乳腺癌淋巴结转移的标志.方法:采用免疫组织化学SP法对108例乳腺癌组织切片染色,观察VEGF-C的表达情况,评价VEGF-C的表达与淋巴结转移及其他临床病理因素的关系.结果:77例(71.3%)乳腺癌组织VEGF-C呈阳性表达,VEGF-C阳性表达与淋巴结转移有明显关系(χ2=6.245,P=0.044),同时与肿瘤大小亦有相关性,χ2=6.708,P=0.035.VEGF-C的表达与患者年龄、病理类型以及ER、PR、c-erbB-2的表达情况无明显相关.结论:VEGF-C对于乳腺癌淋巴结转移起重要作用,是乳腺癌重要的预后因子,而且与肿瘤大小呈正相关.     

HER-2阴性乳腺癌中VEGF、COX-2的表达及相关性研究

目的:研究血管内皮生长因子（VEGF）、环氧化酶-2（COX-2）在91例HER-2阴性乳腺癌组织中的表达及相互关系,分析其与临床病理特征及预后的关系。方法:采用免疫组化SABC法,检测91例HER-2阴性乳腺癌组织中VEGF、COX-2蛋白的表达,并与临床病理特征进行相关性分析。结果:HER-2阴性乳腺癌组织中VEGF阳性表达率为94.5%,其中47.2%为高表达（+++）,VEGF的表达与肿瘤大小、淋巴结转移相关（P<0.05）。HER-2阴性乳腺癌组织中COX-2阳性表达率为86.8%,其中34.0%为高表达（+++）,COX-2的表达与患者年龄、组织学分级、肿瘤大小、淋巴结转移及TNM分期无关（P>0.05）。VEGF与COX-2的表达呈正相关（r=0.1798,P=0.018）,VEGF/COX-2均高表达的患者淋巴结转移率高。结论:VEGF、COX-2在HER-2阴性乳腺癌组织中均高表达且两者呈正相关,联合检测VEGF、COX-2的表达对HER-2阴性乳腺癌预后判断可能具有重要价值。     

乳腺癌组织中COX-2、TRX-1表达及其预后意义

目的：应用免疫组化法,检测COX-2、TRX-1在乳腺癌组织中表达,探讨COX-2、TRX-1表达与乳腺癌临床病理特征及预后因素的关系。方法：122例乳腺癌组织石蜡标本制作成乳腺癌组织芯片。免疫组化sP法检测COX-2、TRX-1表达。所有患者均接受规范性手术、术后辅助化疗及放疗,激素受体阳性病人接受5年的内分泌治疗。从手术日期到复发转移或随访截止日期（2008年7月）确定为患者无病生有溯。共有45例复发嘲多病例。结果：122例乳腺癌组织中COX-2、TRX-1均呈高表达,分别为58．2％、54．1％,且二者表达呈正相关（r=0．286,P=0．001）;COX-2表达与临床分期（r=0．193,P=0．033）、肿块大小（r=0．192,P=0．034）及淋巴结转移（r=0．186,P=0．040）呈正相关,TRX-1表达与临床分期（r=0．206,P=0．023）、肿块大小（r=0．236,P=0．009）呈正相关,与淋巴结转移（r=0．175,P=0．054）不相关。COX-2或TRX-1表达与无病生存期呈负相关（P=0．027,P=0．046）;COX-2和TRX-1共表达与无病生存期呈负相关（P=0．017）。结论：乳腺癌组织中COX-2、TRX-1均呈高表达,两者与乳腺癌患者预后密切相关;COX-2、TRX-1表达呈正相关,推测乳腺癌组织中TRX-1可能参与COX-2调节。     

乳腺癌NF-κB HER2 VEGF-C与VEGFR3表达及其意义

目的:探讨HER2、NF-κB、VEGF-C及其受体VEGFR-3在乳腺癌组织中的表达及相互关系.方法:应用免疫组化方法检测40例人乳腺癌组织和10例癌旁组织HER2、ER、NF-κB、VEGF-C及VEGFR-3的表达情况.结果:乳腺癌组织和癌旁组织NF-κB的阳性率分别为45.0%(18/40)和30.0%(3/10),差异无显著性(P＞0.05),NF-κB与HER2蛋白的表达呈正相关(r=0.442,P=0.004).Ⅲ级乳腺癌的NF-κB表达显著增强(P=0.018).VEGF-C和vEGFR-3的表达显著增强,阳性率分别为70.0%(28/40)和57.5%(23/40),两者呈正相关(r=0.761);NF-κB和HER2与VEGF-C呈正相关(r值分别为0.373和0.342).淋巴结转移组VEGF-C和VEGFR-3的阳性率分别等于90.0%和82.4%,明显高于无淋巴结转移组(56.5%和39.1%).VEGFR-3阳性脉管数平均为8.44±2.58,明显高于无淋巴结转移组(5.12±3.75).结论:NF-κB与HER2的表达为正相关,NF-κB和HER2蛋白与VEGF-C的表达呈正相关.     

乳腺癌组织COX-2和VEGF-C表达与淋巴转移的相关性研究

目的:探讨乳腺癌组织中环氧合酶-2(COX-2)表达和血管内皮生长因子-C(VEGF-C)水平与淋巴转移的相关性.方法:RT-PCR法检测54例乳腺癌组织、相应癌旁及正常组织和30例乳腺良性肿瘤组织中CoX-2 mRNA表达情况;ELISA法检测54例乳腺癌患者和30例乳腺良性肿瘤患者术前、术后及30位正常人血清中VEGF-C水平.结果:1)癌和癌旁组织中COX-2阳性表达率分别为78%(42/54)和13%(7/54),正常乳腺及良性肿瘤组织中呈弱表达(9%)或无表达;在Ⅰ、Ⅱ期和Ⅲ期乳腺癌中其阳性表达率分别为45%(17/38)和63%(10/16);在淋巴结转移阳性患者中呈高表达,表达率为82%(28/34),而在阴性者中表达率仅为30%(6/20).2)VEGF-C在乳腺癌患者术前血清中的水平(6 142.98 ng/L)明显高于乳腺良性肿瘤患者(5 268.92 ng/L),P<0.05;在有淋巴结转移的乳腺癌患者血清中的表达水平(6 369.27 ng/L)明显高于淋巴结转移阴性者(5 884.90 ng/L),P<0.05;在Ⅰ、Ⅱ期术前患者中VEGF-C水平为5 346.87 ng/L,Ⅲ期为5 962.13 ng/L.3)COX-2和VEGF-C在有淋巴结转移的乳腺癌中较无淋巴结转移者表达明显增高,两者与乳腺癌淋巴转移呈正相关,r=0.629,P=0.028.结论:COX-2和VEGF-C在乳腺癌的发生发展中起重要作用,两者共同促进乳腺癌的淋巴结转移.中华肿瘤防治杂志,2009,16(1):51-54     

环氧合酶-2和血管内皮生长因子-C在乳腺癌组织中的表达及预后生存分析

[目的]评价乳腺癌组织中环氧合酶-2(COX-2)和血管内皮生长因子-C(VEGF-C)在基因及蛋白水平表达,分析两者与乳腺癌患者预后的关系.[方法]采用免疫组化SP法和QRT-PCR法分别检测150例乳腺癌组织中COX-2和VEGF-C在mRNA和蛋白水平表达,并采用Kaplan-meier法和COX风险回归模型分析与乳腺癌预后生存的相关危险因素.[结果]乳腺癌组织中COX-2和VEGF-C在mRNA和蛋白水平率均高于乳腺良性组织(58.8％ vs 41.2％和58.9％ vs 41.1％,P＜0.01).单因素结果显示患者COX-2表达、临床分期、腋窝淋巴结转移、Her-2表达、组织学分级与患者的预后有关;COX多因素分析显示肿瘤大小和腋窝淋巴结是影响乳腺癌患者预后的因素.[结论]乳腺癌患者COX-2和VEGF-C表达上调,乳腺癌组织中肿瘤大小、腋窝淋巴结转移是乳腺癌患者预后的影响因素.     

Bacteria and cancer--antagonisms and benefits

There is considerable historical and recent evidence concerning the antagonisms between acute bacterial infections or their toxins and cancer and allied diseases. These data provide renewed incentives to undertake clinical programmes with mixed bacterial vaccines in many countries at the present time.     

Religiosity and physical and emotional functioning among African American and White colorectal and lung cancer patients

The literature suggests that religiosity helps cope with illness. The present study examined the role of religiosity in functioning among African Americans and Whites with a cancer diagnosis. Patients were recruited from an existing study and mailed a religiosity survey. Participants (N = 269; 36% African American, 56% women) completed the mail survey, and interview data from the larger cohort was utilized in the analysis. Multivariate analyses indicated that in the overall sample religious behaviors were marginally and positively associated with mental health and negatively with depressive symptoms. Among women, religious behaviors were positively associated with mental health and negatively with depressive symptoms. Religiosity was not a predictor of study outcomes for men. Among African Americans, religious behaviors were positively associated with mental health and vitality. Among Whites, religious behaviors were negatively associated with depressive symptoms. These findings suggest a mixed role of religious involvement in cancer outcomes. The current findings may have applied potential in the areas of emotional functioning and depression.     

Renal irradiation and the pharmacology and toxicity of methotrexate and cisplatinum

We used a rat model to study the effects of renal irradiation on the pharmacology of methotrexate (MTX) and cisplatinum (cis-Pt). Unanesthetized rats were given bilateral kidney irradiation (20 Gy in 9 fractions). At 9 months after irradiation, 3% of the animals had died and survivors showed moderately impaired renal function. At 15 months, 30% of the animals had died and survivors showed severely impaired renal function. Some animals were given i.v. MTX 1 week to 15 months after irradiation. In irradiated rats, the area under the MTX plasma clearance curve equaled that of controls through 6 months, and was significantly above controls from 9 months on. Other animals were given i.p. cis-Pt 1 week to 9 months after irradiation. The acute toxicity of cis-Pt was the same in control and irradiated rats when cis-Pt was given immediately before or after irradiation. Beginning 3 months after irradiation there was a progressive increase in cis-Pt toxicity and a simultaneous decrease in urinary platinum excretion. Irradiated animals that survived cis-Pt treatment showed increased radiation nephritis; the greatest effect occurred when cis-Pt was given 3 months or more after irradiation. MTX and cis-Pt clearance decreased when renal dysfunction was first observed and changes in renal function preceded changes in drug clearance and toxicity.     

Morphine and tumor growth and metastasis

Morphine is an analgesic widely used to alleviate cancer pain. In addition, the perioperative management of pain in cancer surgery patients most often includes opioids. However, there are reports that these drugs may alter cancer recurrence or metastasis. Several mechanisms have been proposed, such as the modulation of the immune response or cellular pathways that control the survival and migratory behavior of cancer cells. The published literature, however, presents some discrepancies, with reports suggesting that opioids may either promote or prevent the spread of cancer. It is of great importance to determine whether opioids, in particular the most widely used, morphine, may increase the risk of metastasis when used in cancer surgery. This review examines the available data on the effects of morphine which influence cancer metastasis or recurrence, including immunomodulation, tumor cell aggressiveness, and angiogenesis, with special emphasis on recently published clinical and laboratory based studies. We further discuss the parameters that may explain the difference between reports on the effects of morphine on cancer.     

肾上腺素能β受体与肿瘤生长及转移

大量研究表明肿瘤细胞可表达β受体，而一些神经递质、药物和社会心理因素可能通过β受体影响肿瘤的生长和转移，β受体激动剂、β受体阻滞剂以及抑郁等社会心理因素可加强或削弱这种作用。这为表达β受体肿瘤的治疗开辟了新的道路，提供了新的治疗靶点。