ER、PR在乳腺癌中的表达及临床意义

目的：检测并分析ER和PR在乳腺癌中的表达,探讨ER、PR在内分泌治疗中的作用。方法：选取137例有完整临床和病理资料的乳腺癌患者,采用免疫组化法检测其乳腺癌组织中的ER、PR表达。结果：ER,PR阳性率分别为55．47％,51．09％,PR（＋）患者,其ER大多数表达阳性;绝经后ER阳性患者较绝经前患者多;ER、PR阳性率表达与淋巴结是否转移无明显相关性。结论：ER和PR在乳腺癌组织中的存在可以预测肿瘤对激素治疗是否敏感,为临床指导辅助内分泌治疗提供有力的证据。     

大肠癌组织雌激素与孕酮受体检测的初步探讨

本文应用亲和酶标法检测了87例大肠癌组织及80例乳腺癌组织的雌激素受体(ER)和孕酮受体(PR),结果大肠癌的ER、PR阳性率分别为62.1％和46.0％;乳腺癌的ER、PR阳性率分别为65％和56.3％.大肠癌ER、PR阳性率与病人性别、肿瘤部位无关,而绝经后的大肠癌患者,年龄越大,肿瘤分化程度越高,受体阳性率亦越高,与乳腺癌相类似.提示大肠癌与乳癌一样为雌激素依赖性肿瘤,可试行内分泌治疗.     

乳腺癌组织中SC3A抗原、ER和PR表达及意义

目的探讨抗人大肠癌相关抗原MAb SC3A及雌激素受体(ER)和孕激素受体(PR)在乳腺癌中的表达及意义.方法应用免疫组化法检测80例8种不同组织学类型的乳腺癌组织中SC3A抗原的表达,并与ER和PR的表达水平进行比较.结果在30例乳腺癌组织中SC3A、ER和PR的阳性表达率分别为97.1%(73/80)、73.5%(61/80)和61.8%(52/80),MAb SC3A相应抗原的阳性表达率明显高于ER和PR(P＜0.01).其表达强度也高于ER和PR.强阳性率分别为40.0%、18.8%和15.0%.表明SC3A抗原在各型乳腺癌中均有充分的表达.ER和PR的表达也与文献报道相似.结论用MAb SC3A相应抗原检测乳腺癌对此癌的诊断和研究具有实用意义,ER和PR的检测对此癌的临床治疗和预后是有价值的指标.     

乳腺癌雌、孕激素受体与腋淋巴结转移的关系

目的探讨乳腺癌雌、孕激素受体(ER、PR)与淋巴结转移之间的关系.方法应用免疫组织化学方法对257例乳腺癌组织石蜡切片进行ER、PR检测,将ER、PR结果与病理检出淋巴结的结果进行统计学分析.结果 ER、PR的阳性表达率分别为63.27%和59.27%.在ER、PR的4种组合中淋巴结转移率基本相同,经统计学处理均无显著差异(P＞0.05).结论乳腺癌组织中的ER、PR阳性表达与淋巴结转移无关.ER、PR测定对指导内分泌治疗和估计预后有重要意义.     

雌激素受体β蛋白在乳腺癌中表达的意义

目的:检测乳腺癌组织中雌激素受体β(ERβ)蛋白的表达情况,并分析其与乳腺癌临床病理特性的关系。方法:采用免疫组化法检测96例乳腺癌组织中ERβ蛋白的表达情况。结果:ERβ蛋白在96例乳腺癌组织标本中的阳性表达率为75·0%(72/96),癌旁组织中的阳性表达率为90·5%(57/63),二者差别具有显著性(P<0·05);ERβ蛋白表达水平与患者乳癌组织中的ERα蛋白水平、PR蛋白水平及组织学分级相关(P<0·05),与年龄、肿瘤大小、腋淋巴结转移、病理分型、绝经状态无关(P>0·05)。结论:ERβ在乳腺癌癌旁组织内广泛表达,在癌组织内亦有表达,但阳性表达率低于癌旁组织;ERβ蛋白的阳性表达可能是乳腺癌预后良好的一项参考指标。     

ER、PR、Her-2在乳腺癌中的表达

目的 探讨乳腺癌组织中雌激素受体(ER)、孕激素受体(PR)、人类表皮生长因子受体-2(Her-2)的表达与临床特征的关系.方法 用免疫组织化学法检测311例乳腺癌组织中ER、PR、Her-2的表达.结果 311例乳腺癌组织中Her-2阳性表达明显低于ER和PR,分别为87例(27.97%)、185例(59.49%)和195例(62.70%).与非浸润性乳腺癌相比,ER、PR在浸润性乳腺癌中的表达明显减少(P<0.05).ER的表达随乳腺癌TNM分期增加而减少(P<0.05),而PR和Her-2的表达与TNM分期无关(P0.05).与无腋窝淋巴结转移者相比,有腋窝淋巴结转移的乳腺癌组织中ER表达明显减少,Her-2表达明显增加(P<0.05).结论 ER、PR、Her-2与乳腺癌的临床特征密切相关,其可能参与乳腺痛的生物学行为调控,常规检测ER、PR、Her-2的表达可为乳腺癌治疗提供依据.     

ER、PR、Her-2在乳腺癌中的表达

目的 探讨乳腺癌组织中雌激素受体(ER)、孕激素受体(PR)、人类表皮生长因子受体-2(Her-2)的表达与临床特征的关系.方法 用免疫组织化学法检测311例乳腺癌组织中ER、PR、Her-2的表达.结果 311例乳腺癌组织中Her-2阳性表达明显低于ER和PR,分别为87例(27.97%)、185例(59.49%)和195例(62.70%).与非浸润性乳腺癌相比,ER、PR在浸润性乳腺癌中的表达明显减少(P<0.05).ER的表达随乳腺癌TNM分期增加而减少(P<0.05),而PR和Her-2的表达与TNM分期无关(P0.05).与无腋窝淋巴结转移者相比,有腋窝淋巴结转移的乳腺癌组织中ER表达明显减少,Her-2表达明显增加(P<0.05).结论 ER、PR、Her-2与乳腺癌的临床特征密切相关,其可能参与乳腺痛的生物学行为调控,常规检测ER、PR、Her-2的表达可为乳腺癌治疗提供依据.     

ER、PR、Her-2在乳腺癌中的表达

目的 探讨乳腺癌组织中雌激素受体(ER)、孕激素受体(PR)、人类表皮生长因子受体-2(Her-2)的表达与临床特征的关系.方法 用免疫组织化学法检测311例乳腺癌组织中ER、PR、Her-2的表达.结果 311例乳腺癌组织中Her-2阳性表达明显低于ER和PR,分别为87例(27.97%)、185例(59.49%)和195例(62.70%).与非浸润性乳腺癌相比,ER、PR在浸润性乳腺癌中的表达明显减少(P<0.05).ER的表达随乳腺癌TNM分期增加而减少(P<0.05),而PR和Her-2的表达与TNM分期无关(P0.05).与无腋窝淋巴结转移者相比,有腋窝淋巴结转移的乳腺癌组织中ER表达明显减少,Her-2表达明显增加(P<0.05).结论 ER、PR、Her-2与乳腺癌的临床特征密切相关,其可能参与乳腺痛的生物学行为调控,常规检测ER、PR、Her-2的表达可为乳腺癌治疗提供依据.     

ER、PR、Her-2在乳腺癌中的表达

目的 探讨乳腺癌组织中雌激素受体(ER)、孕激素受体(PR)、人类表皮生长因子受体-2(Her-2)的表达与临床特征的关系.方法 用免疫组织化学法检测311例乳腺癌组织中ER、PR、Her-2的表达.结果 311例乳腺癌组织中Her-2阳性表达明显低于ER和PR,分别为87例(27.97%)、185例(59.49%)和195例(62.70%).与非浸润性乳腺癌相比,ER、PR在浸润性乳腺癌中的表达明显减少(P<0.05).ER的表达随乳腺癌TNM分期增加而减少(P<0.05),而PR和Her-2的表达与TNM分期无关(P0.05).与无腋窝淋巴结转移者相比,有腋窝淋巴结转移的乳腺癌组织中ER表达明显减少,Her-2表达明显增加(P<0.05).结论 ER、PR、Her-2与乳腺癌的临床特征密切相关,其可能参与乳腺痛的生物学行为调控,常规检测ER、PR、Her-2的表达可为乳腺癌治疗提供依据.     

ER、PR、Her-2在乳腺癌中的表达

目的 探讨乳腺癌组织中雌激素受体(ER)、孕激素受体(PR)、人类表皮生长因子受体-2(Her-2)的表达与临床特征的关系.方法 用免疫组织化学法检测311例乳腺癌组织中ER、PR、Her-2的表达.结果 311例乳腺癌组织中Her-2阳性表达明显低于ER和PR,分别为87例(27.97%)、185例(59.49%)和195例(62.70%).与非浸润性乳腺癌相比,ER、PR在浸润性乳腺癌中的表达明显减少(P<0.05).ER的表达随乳腺癌TNM分期增加而减少(P<0.05),而PR和Her-2的表达与TNM分期无关(P0.05).与无腋窝淋巴结转移者相比,有腋窝淋巴结转移的乳腺癌组织中ER表达明显减少,Her-2表达明显增加(P<0.05).结论 ER、PR、Her-2与乳腺癌的临床特征密切相关,其可能参与乳腺痛的生物学行为调控,常规检测ER、PR、Her-2的表达可为乳腺癌治疗提供依据.     

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.     

VEGF及KDR在大肠腺瘤和腺癌中的表达及意义

目的：探讨VEGF和KDR在大肠腺瘤和大肠腺癌中的表达及临床病理特征的关系。方法：大肠腺瘤和大肠腺癌组织标本各100例,采用免疫组织化学染色法检测VEGF和KDR在标本中的表达情况。结果：VEGF和KDR在大肠腺癌组中的阳性表达明显高于大肠腺瘤组（P〈0.05）;在正常大肠黏膜均未见VEGF和KDR表达的阳性染色;VEGF阳性表达组中KDR的阳性表达率为70%,显著高于VEGF阴性表达组中KDR的阳性表达率16%,两组比较有统计学意义（P〈0.01）。结论：大肠腺癌组织中KDR的表达与肿瘤大小、转移情况、浸润深度密切相关;VEGF和KDR在大肠腺瘤中的表达与患者的年龄、性别及分型均无相关性,而与增生程度相关（P〈0.05）。在大肠腺癌患者中VEGF及KDR表达更高,二者具有协同效应。     

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。