人类表皮生长因子受体2阳性乳腺癌患者临床病理特征及Ki-67和p53的表达

目的探讨人类表皮生长因子受体2阳性乳腺癌患者的临床病理特征及Ki-67和p53的表达情况。方法回顾性分析2011年2月至2013年12月间就诊的160例人表皮生长因子受体2(HER-2)阳性例乳腺癌患者的临床资料,对比同期100例HER-2阴性乳腺癌患者,探讨HER-2与Ki-67、p53表达之间的关系及其临床病理特征。结果 HER-2与雌激素受体(ER)、孕激素受体(PR)表达呈负相关,与Ki-67、p53表达呈正相关(P<0.05)。HER-2阳性组与阴性组在年龄及月经状态方面均无明显差异(P>0.05)。与HER-2阴性组相比,HER-2阳性组乳腺癌具有较多的侵袭性病理特征,病理类型多为浸润性非特异性癌,分化差,脉管癌栓发病率高,肿块较大,淋巴结转移发生率高,分期晚。结论 Ki-67、p53在HER-2阳性乳腺癌患者中高表达,可作为乳腺癌预后不良的危险因素。HER-2阳性乳腺癌具有较多的侵袭性病理特征,复发风险高,临床需密切观察病情,积极治疗。     

表皮生长因子受体、p53、Ki-67在三阴性乳腺癌中的表达及其意义

目的 探讨表皮生长因子受体（EGFR）、p53、Ki-67在三阴性乳腺癌（TNBC）中的表达及其意义.方法 回顾性分析53例TNBC和128例非三阴性乳腺癌（NTNBC）临床病理特征,并应用免疫组织化学方法检测EGFR、p53、Ki-67在两者之间的表达差异.结果 TNBC与NTNBC淋巴结转移发生率差异无统计学意义[56.6％（30/53）比43.0％（55/128）,P＞0.05],组织学Ⅰ级[9.4％（5/53）与32.8％（42/128）]、Ⅲ级[50.9％（27/53）与22.7％（29/128）]所占比例差异有统计学意义（P＜0.05）;TNBC中浸润性小叶癌较少[5.7％（3/53）],髓样癌较多[15.1％（8/53）],与NTNBC [19.5％（25/128）、3.1％（4/128）]相比差异有统计学意义（P＜0.05）;EGFR、p53、Ki-67在TNBC与NTNBC中的表达率分别为62.3％（33/53）与25.0％（32/128）、71.7％（38/53）与47.7％（61/128）、84.9％（45/53）与70.3％（90/128）,差异均有统计学意义（均P＜ 0.05）.结论 TNBC有其独特的临床病理特征,EGFR、p53、Ki-67在TNBC中高表达,提示其恶性程度高,侵袭性强,预后差,EGFR、p53、Ki-67表达可以作为评估TNBC预后的重要参考因素.     

人表皮生长因子受体-2及雌激素受体与乳腺癌的关系

乳腺癌与人表皮生长因子受体-2及雌激素受体关系密切,这两种受体也是乳腺癌的分类标准和治疗靶点。在大多数乳腺癌患者中,人表皮生长因子受体-2信号途径和雌激素受体信号途径参与了细胞的增生存活过程。而且在乳腺癌病例中,人表皮生长因子受体-2和雌激素受体呈现出一定程度的负相关。这说明这两种受体活化后有一些联系。本文简要综述了人表皮生长因子受体-2和雌激素受体的联系以及这种联系在乳腺癌治疗中的意义。     

浸润性乳腺癌MRI征象与HER-2及Ki-67表达的相关性

目的:探讨浸润性乳腺癌（IBC）核磁共振成像（MRI）征象与人表皮生长因子受体2（HER-2）、肿瘤增殖抗原Ki-67表达的相关性。方法:选择2015年6月至2017年12月在我院进行治疗的IBC患者65例为研究对象,对所有患者进行MRI扫描检查,采用免疫组化检查患者的HER-2、Ki-67阳性表达。分析MRI征象与HER-2、Ki-67阳性表达的相关性。结果:MRI扫描检查结果显示:边缘毛刺征患者占比63.08%（41/65）、分叶征患者占比58.46%（38/65）、钙化患者占比73.85%（48/65）、淋巴结转移患者占比67.69%（44/65）。免疫组化检查结果显示:HER-2阳性患者占比69.23%（45/65）、Ki-67阳性患者占比58.46%（38/65）。存在边缘毛刺征、分叶征、钙化、淋巴结转移的患者HER-2、Ki-67阳性表达高于无边缘毛刺征、无分叶征、无钙化、无淋巴结转移的患者（P＜0.05）。经Spearman相关性分析显示,乳腺癌肿块的边缘毛刺征、分叶征、钙化、淋巴结转移与HER-2、Ki-67阳性表达呈正相关（P＜0.05）。结论:IBC的MRI影像学特征与患者的HER-2、Ki-67阳性表达水平呈正相关,可通过对IBC患者细胞生物学因子指标水平的判断,评估患者疾病的严重程度以及预后情况等。     

C-erbB-2、p53、Ki-67及VEGF在乳腺癌中的表达及相关性

目的探讨C-erbB-2、p53、Ki-67及VEGF在乳腺癌组织中的表达及其与乳腺癌临床病理特征之间的相关性。方法采用免疫组化SP法检测72例乳腺癌组织中C-erbB-2、p53、Ki-67及VEGF表达情况,并结合临床病理特征进行相关性分析。结果乳腺癌患者C-erbB-2、p53、Ki-67及VEGF阳性表达率分别为47.2%、48.6%、56.9%、65.3%。C-erbB-2、p53表达与淋巴结转移、雌激素受体、孕激素受体相关(P<0.05);Ki-67、VEGF与肿瘤直径、淋巴结转移相关(P<0.05);ER和PR呈正相关(P<0.05);C-erbB2与ER、PR呈负相关(P<0.05);p53与ER和PR呈负相关(P<0.05);p53、Ki-67、VEGF之间均呈正相关(P<0.05)。结论 C-erbB-2、p53、Ki-67及VEGF检测对判断乳腺癌预后有重要意义。     

乳腺癌组织中COL11A1表达与ER、PR、HER-2和Ki-67的相关性分析

目的 探讨乳腺癌组织中Ⅺ型胶原α1(COL11A1)表达与雌激素受体(ER)、孕激素受体(PR)、人表皮生长因子受体-2(HER-2)和Ki-67的关系。方法 采用免疫组化EnVision两步法检测18例乳腺纤维腺瘤组织和120例乳腺癌组织(36例原位癌组织、84例浸润性癌组织)中COL11A1的表达,同时对乳腺癌组织进行ER、PR、HER-2和Ki-67免疫组化检测,对HER-2(2+)进行荧光原位杂交检测;分析COL11A1表达与乳腺癌临床病理特征和多种免疫标记(ER、PR、HER-2和Ki-67)的关系。结果 免疫组化结果显示COL11A1主要表达于乳腺癌细胞中。在纤维腺瘤组织中COL11A1表达呈弱阳性。COL11A1在原位癌中表达高于浸润性乳腺癌(P<0.05)。COL11A1表达与乳腺癌患者的年龄、部位、肿块大小和淋巴结转移无关(P>0.05),而中、高分化组织的COL11A1表达水平高于低分化组织,差异有统计学意义(P<0.05)。进一步分析COL11A1与乳腺癌其他免疫标记间的相关性发现,在Ki-67高表达组织中COL11A1低表达的比例更高,差异有统...     

乳腺癌p53、c－erbB－2基因蛋白、表皮生长因子受体与雌、孕激素受体的表达及其临床意义

应用免疫组化ＡＢＣ法检测１００例乳腺癌和１００例乳腺良性病变组织中ｐ５３、ｃ－ｅｒｂＢ－２、ＥＧＦＲ与ＥＲ、ＰｇＲ的表达。结果显示：乳腺癌各种标记阳性率均高于乳腺良性病变；ＥＲ阳性率在５０岁以上组高于５０岁以下组（Ｐ＜０．０５）；不同病理学类型中各种标记的阳性率亦存在一定差异，乳腺癌中ｐ５３、ｃ－ｅｒｂＢ－２、ＥＧＦＲ和ＥＲ及ＰＲ的表达呈显著负相关（Ｐ＜０．０１），可能成为判断乳腺癌治疗和预后的重要标志。     

胃癌表皮生长因子受体和p53蛋白的表达及意义

[目的]研究表皮生长因子受体(EGFR)、p53蛋白在胃癌中的表达及其临床意义。[方法]应用ABC免疫组化方法检测75例胃癌中EGFR、p53蛋白的表达。[结果]正常胃粘膜EGFR、p53均呈阴性表达。而胃癌中EGFR、p53的阳性表达率分别为50.1％和41.3％,EGFR的表达与胃癌的分化程度<0.05)相关,与淋巴结转移、浸润程度显著相关(P<0.01);同时p53的表达亦与胃癌的分化程度、淋巴结转移相关(P<0.05),但与浸润深度无显著相关(P<0.05)。[结论]本实验提示检测EGFR和p53的表达可作为判断胃癌预后的一项有用指标。     

乳腺癌bcl-2、Ki-67、p53表达及意义

目的：探讨bcl-2、Ki-67、p53蛋白在乳腺癌中的表达及其关系。方法：应用免疫组化SP方法，观察56例乳腺癌中的bcl-2、Ki-67、p53的表达情况。结果：bcl-2、Ki-67和p53在乳腺癌中表达率分别为63％，68％，52％，与乳腺癌分级及淋巴结转移密切相关（P＜0．05）。结论：bcl-2、Ki-67、p53的异常表达在乳腺肿瘤发生发展中起重要作用。     

Ｋｉ-６７、ＥＧＦＲ、ＨＥＲ-２和ｐ５３在乳腺癌中的表达及其相关性

目的　分析Ｋｉ-６７、ＥＧＦＲ、ＨＥＲ-２、ｐ５３在乳腺癌组织中的表达,并探讨其与乳腺癌临床病理特征之间的相关性。方法　用免疫组化法检测１３８例乳腺癌患者病理组织中Ｋｉ-６７、ＥＧＦＲ、ＨＥＲ-２和ｐ５３蛋白的表达,并结合临床病理特征进行相关性分析。结果　Ｋｉ-６７、ＥＧＦＲ、ＨＥＲ ２和ｐ５３在乳腺癌组织中的表达率依次为９１.３０％、１７.３９％、６２.３２％和２３.１９％,不同年龄组其表达均无统计学差异（Ｐ＞０.０５）。Ｋｉ-６７的表达与组织学分级、病理类型、肿块大小、淋巴结是否转移及分期显著相关（Ｐ＜０.０５）;ＥＧＦＲ表达与病理类型和ＥＲ状态显著相关（Ｐ＜０.０５）;ＨＥＲ ２表达与病理类型、组织学分级、淋巴结转移、远处转移及分期无相关性（Ｐ＞０.０５）;而ｐ５３表达与组织学分级、ＥＲ和ＰＲ状态呈显著相关（Ｐ＜０.０５）。ＥＲ和ＰＲ呈正相关;ＥＧＦＲ、ＨＥＲ-２、ｐ５３与ＥＲ均为负相关;ＨＥＲ-２和ＰＲ呈负相关;Ｋｉ-６７与ＥＧＦＲ、ＨＥＲ-２、ｐ５３、ＥＲ及ＰＲ之间均无相关性;ｐ５３与ＥＧＦＲ呈正相关;ＥＧＦＲ与ＨＥＲ-２呈负相关。结论　联合检测乳腺癌组织中ＥＧＦＲ、Ｋｉ-６７、ＨＥＲ-２和ｐ５３蛋白的表达能更清楚地了解乳腺癌的生物学行为,对乳腺癌的诊断、指导治疗及评价预后有重要的临床意义。     

Ki-67、p53、CerbB-2表达与乳腺癌彩色超声征象的关系

目的 探讨肿瘤增殖抗原(Ki-67)、肿瘤抑制基因(p53)、原癌基因(CerbB-2)表达与乳腺癌彩色超声征象的临床关系.方法 选取拟行手术切除的乳腺癌患者44例作为研究对象,所有患者手术前均行彩色超声检查,于手术后对切除标本行石蜡包埋切片,然后采用免疫组化方法 对Ki-67、p53、CerbB-2表达情况进行检测,并分析3者和术前彩色超声征象的临床关系.结果 本组44例乳腺癌患者中,肿块直径≥2 cm者共有25例,19例肿块形态散在分布,16例分叶状分布,9例类圆形分布;23例有毛刺征,24例有高回声晕,27例有后方衰减,20例有微小钙化,21例有淋巴结转移,27例血流信号2~3级;Ki-67阳性表达率为61.36%,p53阳性表达率为52.27%,CerbB-2阳性表达率为47.73%;27例Ki-67阳性表达患者中,肿块形态、微小钙化、淋巴结转移以及肿块内血流信号,23例p53阳性表达患者中淋巴结转移和肿块内血流信号,21例CerbB-2阳性表达患者中微小钙化和肿块内血流信号比较,差异均有统计学意义(P<0.05).结论 Ki-67、p53、CerbB-2阳性表达和彩色超声征象均存在一定关联,可作为乳腺癌重要诊断指标.     

Prognostic implications of p53 protein, epidermal growth factor receptor, and Ki-67 labelling in brain tumours.

The expression of p53 protein, epidermal growth factor receptor (EGFR), and Ki-67 nuclear antigen was examined by immunohistochemistry in biopsies of 16 types of human brain tumours, including 43 astrocytomas. P53 protein, almost certainly its mutant form, was expressed in seven of the 16, and EGFR in 11 of the 16 types of tumours. In astrocytomas both the proportion of tumours which expressed p53 or EGFR increased with grade of malignancy as did the mean Ki-67 labelling index (LI): p53-0% in grade 1, 17% in grade 2, 38% in grade 3, 65% in grade 4; EGFR-0% in grade 1, 33% in grade 2, 85% in grade 3, 95% in grade 4; mean Ki-67 L1-1.1% in grades 1 and 2, 8.3% in grade 3, and 13.4% in grade 4. Astrocytomas which expressed p53 or EGFR had a significantly higher Ki-67 LI at P less than 0.05 (11.8% and 10.7%, resp.) than those that did not (6.2% or 4.1%, resp.). Patients with astrocytomas expressing p53 or EGFR had a significantly reduced survival (P = 0.035 and P = 0.007, resp.): only 11% of the p53 + ve and 13% of the EGFR + ve patients were alive at 100 weeks following diagnosis compared to 36% of p53-ve or 60% of EGFR-ve patients. Patients with Ki-67 LI greater than 5% had a reduced survival (P less than 0.0001)--none survived beyond 86 weeks following diagnosis, whilst 63% of patients with less than 5% positive cells were still alive at 100 weeks. The univariate analysis showed that in astrocytomas expression of p53 mutants, EGFR protein, and Ki-67 greater than 5% are associated with malignant progression and poor prognosis. The multivariate analysis revealed that only tumour grade and Ki-67LI were independent prognostic factors for survival.     

Topoisomerase II alpha expression and the Ki-67 labeling index correlate with prognostic factors in estrogen receptor-positive and human epidermal growth factor type-2-negative breast cancer

Background

Topoisomerase II alpha (Topo IIa) is involved in DNA replication and is a molecular target for anthracycline-based chemotherapy. The Ki-67 labeling index (LI) is an evaluation of tumor cell proliferation. The objective of this study was to evaluate relationships among Topo IIa expression, the Ki-67 LI, and prognostic factors in estrogen receptor (ER)-positive, human epidermal growth factor type-2 (HER2)-negative breast cancer.

Materials and methods

Seventy-one patients were diagnosed with ER-positive, HER2-negative breast cancer between July 2003 and December 2004. Formalin-fixed, paraffin-embedded tumor specimens were stained for Topo IIa expression and Ki-67 LI. We investigated the correlation of the level of Topo IIa expression and the Ki-67 LI with clinical factors such as age, tumor size, progesterone receptor status, nodal status, nuclear grade, and lymphovascular invasion (LVI).

Results

Statistically significant differences were observed between Topo IIa overexpression, nuclear grade (p?=?0.036), and LVI (p?=?0.029). Topo IIa overexpression was statistically correlated with the Ki-67 LI (p?p?=?0.01). Survival analysis revealed the significant prognostic value of Ki-67 LI in patients with ER-positive, HER2-negative breast cancer (p?=?0.003).

Conclusions

Ki-67 LI is a strong prognostic factor in ER-positive HER2-negative breast cancer. Topo IIa overexpression was significantly correlated with the Ki-67 LI, nuclear grade, and LVI. These findings suggest use of Topo IIa expression as a proliferation marker and a prognostic factor in ER-positive, HER2-negative breast cancer.     

Association between cadmium and breast cancer risk according to estrogen receptor and human epidermal growth factor receptor 2: epidemiological evidence

The study aimed to examine the association between cadmium (Cd) and the risk of breast cancer according to estrogen receptor (ER) and human epidermal growth factor receptor 2 (HER2). A hospital-based case–control study was carried out in 585 cases and 1,170 controls. Information on possible risk factors was collected via a structured questionnaire. Urinary Cd was determined by atomic absorption spectrometry. The ER and HER2 levels in tumor tissue were analyzed by immunohistochemistry. Logistic regression was used to calculate odds ratios (ORs) and 95 % confidence intervals (CIs) for breast cancer by creatinine-adjusted urinary Cd. Women with greater creatinine-adjusted urine Cd (3rd quartile: 0.241–0.399 μg/g and 4th quartile: ≥0.4 μg/g) experienced 1.6 times higher risk of breast cancer compared with those having Cd concentration lower than 0.147 μg/g (1st quartile) [OR = 1.6, (95 % CI 1.19, 2.17) and OR = 1.62 (95 % CI 1.19, 2.21), respectively, P trend = 0.001] after adjustment for age and other confounders. Both ER+ and HER2? cases from the highest quartile of urine Cd exhibited approximately twice the breast cancer risk of those in the lowest quartile [OR = 1.9, (95 % CI 1.31, 2.74) and OR = 1.87, (95 % CI 1.33, 2.62), respectively, P trend <0.001) after adjustment for confounders. The data support cadmium as a risk factor for breast cancer, especially for both ER+ and HER2? cancer patients.