肺癌组织中CD44v6和nm23的表达及临床意义

目的：探讨CD44v6和nm23有肺癌组织中的表达及意义。方法：应用免疫组织化学方法,检测51例肺癌组织中CD44v6和nm23的表达情况,并分析其临床意义。结果：在5例类癌和4例小细胞肺癌（SCLC）中未见CD44v6表达。在非小细胞肺癌（NSCLC）中,≤60岁和＞60岁组CD44v6的阳性率分别为84．0％和29．4％,两组间差异有非常显著性（χ^2＝12．79;P＜0．01）,低分化癌和高中分化癌中CD44v6的阳性率分别为87．0％和31．6％,两组间差异有显著性（χ^2＝13．53,P＜0．01）;有和无淋巴结转移组CD44v6和的阳性率分别为73．3％和33．3％,两组间差异有显著性（χ^2＝5．82,P＜0．05）;鳞癌和腺癌中CD44v6的阳性率分别为85．7％和50．0％,两组间差异有显著性（χ^2＝5．05,P＜0．05）;nm23在腺癌和鳞癌中的阳性率分别为64．3％和14．3％,两组间差异有显著性（χ^2＝9．35,P＜0．01）。结论CD44v6可反映NSCLC的生物学特性,是预测其侵袭转移潜能和预后的指标。m23能否作为肺癌的预后指标尚待扩大样本深入研究。     

nm23和CD44v6蛋白在非小细胞肺癌中的表达及其临床意义

目的：探讨nm23与CD44v6蛋白在非小细胞肺癌（non-small cell lung cancer,NSCLC）中的表达及其临床意义。方法：采用免疫组织化学法检测58例NSCLC标本中nm23、CD44v6的表达情况。结果：nm23阳性率为87.9%（51/58）,其中T1～T2组与T3～T4组间差异有统计学意义（P〈0.05）。CD44V6阳性率为55.2%（32/58）,其中鳞癌阳性率（85.7%）明显高于腺癌（24%）,P〈0.05;中分化组阳性率（71.9%）高于低分化组（44.4%）和高分化组（35.3%）,P〈0.05。nm23、CD44V6的表达与pTNM分期、淋巴结转移及生存率之间无相关性,P〉0.05。结论：nm23和CD44v6蛋白表达分别与NSCLC原发肿瘤大小（T）、病理类型、分化程度存在相关性,与pTNM分期及淋巴结是否转移无相关性。     

肿瘤转移相关基因在甲状腺乳头状癌的表达与颈淋巴结转移相关性研究

目的：探讨肿瘤转移抑制相关基因nm23-H1,转移相关基因CD44v6在甲状腺乳头状癌的表达与颈淋巴结转移的关系。方法：采用免疫组化S－P法,检测201例甲状腺乳头状癌、30例甲状腺良性病变及30例正常甲状腺组织中nm23-H1和CD44v6的表达情况。结果：1）nm23-H1在甲状腺乳头状癌组的表达阳性率62．7％,明显低于良性病变组和正常组（P＜）．01或P＜0．05）。有转移组nm23-H1的阳性率为54．5％,明显低于无转移组（75．0％）,其蛋白表达与颈淋巴结转移呈负相关。2）CD44 v6在甲状腺乳头状癌组的表达阳性率为71．1％,明显高于两对照组（P均＜0．01）。有转移组CD44v6的阳性率为79．3％,明显高于无转移组（58．5％）,其蛋白表达与颈淋巴结转移呈正相关。3）甲状腺乳头状癌中nm23-H1和CD44v6表达呈显著负相关关系（P＜0．01）。nm23-H1阴性表达伴CD44v6阳性表达的患者发生颈淋巴结转移的可能性大。结论：nm23-H1和CD44v6的表达与甲状腺乳头状癌的颈淋巴结转移密切相关,nm23-H1和CD44v6的表达在淋巴结转移中起协同作用,两者的表达失衡可能与甲状腺乳头状癌发生颈淋巴结转移有密切关系。因此,检测nm23-H1和CD44v6可能作为预测甲状腺乳头状癌颈淋巴结转移潜能的有价值的参考指标。     

Nm23-H1、CD44v6在60例下咽癌组织中的表达及临床意义

摘 要：［目的］分析下咽癌组织中肿瘤抑制基因 nm23-H1和转移相关基因 CD44v6的表达情况及其意义。［方法］ 60例下咽癌（其中30例有颈部淋巴结转移,30例无颈部淋巴结转移）及30例癌旁组织纳入分析,采用免疫组织化学SP法检测nm23-H1和CD44v6的表达情况。［结果］ Nm23-H1在下咽癌组的表达阳性率为53.33%,较癌旁组织组（90.00%）明显偏低(P＜0.05);有颈部淋巴结转移下咽癌组（40.00%)、无颈部淋巴结转移下咽癌组(66.67%)及癌旁组织各组间nm23-H1阳性率差异有统计学意义 (P＜0.05)。CD44v6在下咽癌组的表达阳性率为76.67%,较癌旁组（56.67%）明显高(P＜0.05);有颈部淋巴结转移组CD44v6阳性率(90.0%)较无转移组(63.33%)明显高(P＜0.05)。下咽癌组织中nm23-H1和CD44v6表达呈负相关(P＜0.05)。［结论］ 下咽癌中 nm23-H1表达下调可促使下咽癌发生、推动肿瘤发展及发生颈部淋巴结转移;CD44v6表达上调可使肿瘤的发展及转移加速。两者的表达失衡与下咽癌发生颈部淋巴结转移关系密切并且可能起协同作用。因此,联合检测nm23-H1和CD44v6对判断下咽癌的颈部淋巴结转移有指导意义。     

非小细胞肺癌中E-cadherin、CD44v6和nm23-H1表达的临床意义

目的探讨E-cadherin、CD44v6和nm23-H1在非小细胞肺癌中的表达及其临床意义.方法采用免疫组化ABC法检测65例原发性非小细胞肺癌组织中E-cadherin、CD44v6和nm23-H1表达情况,并分析了它们表达与肺癌临床病理的关系.结果65例非小细胞肺癌中E-cadherin、CD44v6和nm23-H1的阳性表达率分别为38.5%、58.5%和46.2%.Ecadherin、CD44v6和nm23-H1阳性表达与病理分级密切相关,与组织学类型无明显相关性.Ⅰ期、Ⅱ期中E-cadherin和CD44v6表达与Ⅲ期、Ⅳ期之间比较,有显著性差异(P＜0.01);nm23-H1阳性表达与临床分期无明显相关性.E-cadherin、CD44v6和nm23-H1表达与肺癌淋巴结转移密切相关.结论E-cadherin、CD44v6和nm23-H1异常表达在非小细胞肺癌发生、发展和转移过程中发挥着重要的作用.联合检测对判断非小细胞肺癌的生物学行为具有重要的意义.     

卵巢癌组织中CD44V6和VEGF及nm23-H1细胞因子表达的临床意义

目的探讨CD44V6、VEGF及nm23-H1在卵巢癌等的表达情况及其临床意义.方法选取65例手术切除卵巢癌标本、卵巢良性肿瘤30例和正常卵巢组织29例,常规10%甲醛固定,石蜡包埋,连续切片,以针对CD44V6、VEGF和nm23-H1单克隆抗体,SABC免疫组化染色,观察了其在卵巢癌、良性卵巢肿瘤及正常卵巢组织的表达并分析相关的临床病理因素.结果1)CD44V6和VEGF两细胞因子在卵巢癌、临床Ⅱ～Ⅳ期、生存期<5年的患者癌组织内,其阳性率分别高于良性瘤和正常卵巢组、临床Ⅰ期、生存期>5年者,P<0.05;CD44V6在转移癌的阳性率亦显著高于原发灶,但VEGF阳性率在原发灶和转移瘤间差别不明显.2)nm23-H1阳性率在临床Ⅱ～Ⅳ期、癌转移灶、癌患者生存期<5年的癌组织内,分别显著低于临床Ⅰ期、原发癌和生存期>5年者,P<0.05;nm23-H1阳性率在卵巢癌中亦显著高于良性瘤、正常卵巢组.3)未看出3种因子表达在卵巢癌患者不同年龄组、不同组织类型、病理分级及残留灶大小间其阳性率有明显差异.结论1)CD44V6和VEGF表达在分化差的肿瘤组织中较高,且患者预后差.2)nm23-H1在肿瘤早期、原发癌表达明显高于晚期转移癌,但其在恶性瘤比良性瘤、正常卵巢组织中阳性率高的结果,可能是机体遏制肿瘤、努力代偿的现象.     

结肠癌nm23-H1和CD44V6表达及其与淋巴结转移的关系

目的探讨nm23-H1和CD44V6在结肠癌发生、发展中的作用及其相互关系.方法采用免疫组化S-P方法检测152例结肠癌nm23-H1和CD44V6的表达.结果152例结肠癌nm23-H1阳性率与淋巴结转移(P＜0.05)、癌组织分化(P＜0.01)关系密切;CD44V6表达与Dukes分期(P＜0.01)、肿瘤浸润深度(P＜0.01)、癌组织分化(P＜0.05)及淋巴结转移(P＜0.01)密切相关;nm23-H1和CD44V6表达,两者呈负相关(P＜0.01),CD44V6阳性nm23-H1阴性表达的患者淋巴结转移率高于CD44V6阴性nm23-H1阳性表达者(P＜0.05).结论nm23-H1和CD44V6在结肠癌中的表达与其发生发展密切相关,尤其CD44V6和nm23-H1表达在结肠癌转移中起协调作用,可成为临床估计肿瘤转移潜能的重要参考指标.     

胃癌组织及区域淋巴结MUC1、CD44v6、nm23表达与胃癌侵袭转移及预后的关系

背景与目的:研究证实胃癌浸润深度和淋巴结转移是多基因及其蛋白表达产物协调作用的结果,寻找与胃癌转移相关的分子生物学标志物有助于胃癌的研究。本实验旨在探讨胃癌组织及区域淋巴结中MUC1、CD44v6、nm23表达与胃癌侵袭转移及预后的关系。方法:采用SP免疫组织化学方法对110例胃癌组织及613枚区域淋巴结中的MUC1、CD44v6、nm23基因蛋白的表达进行检测。结果:①胃癌组织中的MUC1蛋白阳性表达在低分化癌组、浸润型组、T3+T4组、淋巴结转移组、Ⅲ～Ⅳ期组、生存期<5年组分别为84.6%、88.1%、87.3%、91.7%、94.4%、95.5%,CD44v6分别为79.5%、74.6%、79.4%、81.7%、87.0%、87.9%,nm23分别为38.5%、32.2%、30.2%、25.0%、25.9%、18.2%。MUC1和CD44v6表达低分化癌组显著高于高、中分化癌组(78.9%vs57.7%),浸润型组高于局限型组(72.6%vs54.9%),T3+T4组高于T2组(72.3%vs46.8%),淋巴结转移组高于无淋巴结转移组(68.0%vs46.0%),TNMⅢ～Ⅳ期组高于Ⅰ～Ⅱ期组(67.9%vs44.6%),生存期<5年组高于≥5年组(59.1%vs31.8%),各组间差异均具有显著性(P<0.01或P<0.05)。而nm23除分化程度、Borrmann分型不同的两组之间差异无显著性外,T3+T4组低于T2组(51.1%),有淋巴结转移组低于无淋巴结转移组(56.0%),TNMⅢ～Ⅳ期组低于Ⅰ～Ⅱ     

CD44和nm23基因在滋养细胞肿瘤中的表达及临床意义

目的：探讨转移促进基因CD44和转移抑制基因nm23在预测滋养细胞肿瘤转移能力方面的意义。方法：采用SP免疫组织化学法检测57例滋养细胞疾病组织蜡块的CD44v6和nm23H1的表达情况。结果：57例滋养细胞疾病的石蜡标本中，nm23H1和CD44v6表达阳性率在葡萄胎组与滋细胞肿瘤组有显著性差异（P＜0．05），CD44v6表达阳性率在恶性滋养细胞肿瘤的临床I期和Ⅱ-Ⅲ期间有显著性差异（P＜0．05），结论：nm23H1的缺失和CD44v6过表达与滋养细胞肿瘤的恶性程度密切相关，CD44v6对预测滋养细胞肿瘤远处转移具有较高预测价值。     

CD44v6和nm23-H1在肺癌中的表达

[目的]研究CD44v6和nm23-H1蛋白在肺癌中的表达.[方法]对78例原发性肺癌采用S-P法进行免疫组化研究.[结果]CD44v6和nm23-H1蛋白表达在不同的肺癌临床分期、病理分化程度和淋巴结转移状况下均有显著差异,两者与肺癌的性别、年龄、肿块大小和病理类型均无关.[结论]CD44v6和nm23-H1检测可作为预测肿瘤转移潜能及预后的参考指标.     

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。