Prognostic significance of MDR-1 P-glycoprotein expression in breast cancer

Objective： To investigate the expression of MDR-1 P-glycoprotein（MDR-1 Pgp） in breast cancer and analyze its correlation to the biological behavior and prognosis of the disease. Methods：The expression of MDR-1 Pgp was examined in 75 cases of breast cancer patients by using three different monoclonal antibodies（JSB1, C219 and C494） with S-P immunohistochemisty. These patients were followed up for 5 years, and the correlation between MDR-1 Pgp expression, survival rate and lymph metastasis was analyzed. Results： Positive detection of MDR-1 Pgp by JSB1, C219 and C494 in 75 cases of breast cancer was 86.7%, 48% and 85.3%, respectively. MDR-1 Pgp expression was not related to ages of patients （P 〉 0.05）. JSBl-detected expression of MDR-1 Pgp was related to lymph node metastasis（P〈 0.05）; while C219 and C494 were not（P 〉 0.05）. The patients with MDR-1 Pgp expression positively detected by either two of the three antibodies, had five-year survival rate that was significantly higher than those positively detected by all the three antibodies（P 〈 0.05）. Conclusion：Three antibodies should be used simultaneously to detect MDR-1 Pgp expression in breast cancer. Positive MDR-1 Pgp expression in breast cancer detected by all the three antibodies may represent a poor prognosis; while positive MDR-1 Pgp detection by JSB1 and C494 is associated with lymph metastasis.

CLINICAL SIGNIFICANCE OF P-GLYCOPROTEIN EXPRESSION IN BREAST CANCER

Objective: to study the clinical significance of P-glycoprotein (P-gp) in breast cancer. Methods: Expression of P-gp in 60 cases of breast cancer was examined by immunohistochemistry. P-gp expression and response to chemotherapy were comparatively investigated in 19 patients with metastatic breast cancer. Results: The P-gp was positive in 48.3% of the 60 cases of breast cancer. P-gp expression was not related to patients' age, menstruation status, number of axillary lymph nodes involved, clinical stage, histological type, and hormonal receptor status (P>0.05). The frequency of metastasis (62.1%) and mortality (51.7%) were higher in P-gp positive cases than in negative cases (16.1% vs 12.9%, P<0.005). The 5-year survival rate of P-gp positive cases (48.3%) was significantly lower than that of negative cases (87.1%) (P<0.05). In patients who received adjuvant chemotherapy distant metastasis occurred more frequently in the P-gp positive cases (94.7%) than in the P-gp negative cases (57.1%) (P=0.0468). More P-gp negative patients (7/9) than positive patients (1/10) were responsive to chemotherapy (P=0.0055). Conclusion: Immunohistochemical examination of P-gp expression is useful in predicting response to chemotherapy and prognosis in breast cancer patients. P-gp positivity is associated with poor prognosis.

基于类器官模型探究乳腺癌突变位点ER、PR、HER2与药物敏感性的相关性

目的探索乳腺癌相关受体ER、和PR、和HER2的表达量水平与20种FDA批准的肿瘤化疗药物敏感性的关系。方法收集厦门医学院附属第二医院收治的乳腺癌患者术中肿瘤组织,同时培养肿瘤组织对应的类器官,通过RT-qPCR和western blot观察类器官受体(ER和PR、HER2)的表达情况。根据表达水平分为高表达组和低表达组,并分别观察各组类器官对包括顺铂、紫杉醇在内的20种FDA批准的化疗药物的IC50值,并通过GR50浓度对类器官的敏感性进行评分。结果培养的乳腺癌类器官具有与肿瘤组织相同的肿瘤上皮细胞和ER和PR、HER2的表达情况,药敏的结果显示,乳腺癌患者类器官对奥拉帕尼和舒尼替尼、曲贝丁的评分较高,对顺铂、卡铂的敏感率较低。其中ER和PR表达水平上调会增加类器官对依托泊苷、阿霉素和它莫西芬等药物的的敏感性,而会降低对紫杉醇、长春瑞滨和SN-38等的敏感性。另外,HER2表达水平上调会增加类器官对顺铂、卡铂和长春瑞滨等的敏感性,会降低对依托泊苷和吉西他滨的敏感性。结论ER、PR或HER2的表达量与乳腺癌对大多数药物敏感性有显著的影响。因此,在制定治疗方案是需要考虑这些受体的表达量。

RELATIONSHIP AMONG PS_2 PROTEIN EXPRESSION, ESTROGENAND PROGESTERONE RECEPTOR STATUS, ANDPROGNOSIS OF BREAST CANCER

Objective: To study the relationship between theexpression of PS, protein and Estrogen (ER) andProgesterone Receptor (PR) status and their prognoticvalue in breast canceL Methods: Using theimmunohistochemical method, PS2 protein expressionswere detected in 105 cases with breast cancer. Results:The positive rate of PS2 protein was 50.48% (53/105) in105 cases. The positive rate of PS, in the patients whosurvived five years or more was 56.96% (45/79), whichwas higher than that of those who lived less than fiveyears (30.77%, 8/26). In the ER, PR (+) patients, thepositive rate of PS, was higher (76.74%, 33/34), thanthat of those with ER, PR (-) (22.5%, 9/40). Conclusions:Our results suggest that the expression of PS, proteinwas positively correlated with the 5-year-survival andthat of ER and PR in breast cancer. It is considered thatPS, may be as a prognostic predictor, and detection ofPS, protein expression was useful for a guidingtreatment of breast cancer.

Expression of BI-1 protein and its significance in breast cancer

Objective： To investigate the correlations of expression of Bax inhibitor-1 （BI-1） gene and the receptors of estrogen and progestogen in breast cancer and its significance. Methods： Immunohistochemical methods had been used to detect the expressions of BI-1 gene and receptors of estrogen and progestogen in breast cancer. Results： The positive rates of expressions of BI-1 gene, estrogen receptor （ER） and progestogen receptor （PR） in breast cancer were 77.08%, 60.42% and 54.17%, respectively. The positive rate of expression of BI-1 gene was higher in the group with negative expression of ER than the positive group, their positive rates were 76.92% and 52.27%, respectively; but there was no statistical difference between the two groups with positive and negative expressions of PR. The positive rate of expression of BI-1 gene was also higher in the group with positive lymph node metastasis than the non-lymph node metastasis group, and their positive rates were 64.58% and 36.36%, respectively. The difference was statistically significant （P 〈 0.05）. Conclusion： BI-1 gene, in combination with ER, has guiding significance for patients with breast cancer to choose individual chemotherapy and radiotherapy after operation and can become an important indicator for judging the prognosis of breast cancer.

Relationship between expression of ER, PR, Her-2, Ki-67 and neoadjuvant chemotherapy effect in breast cancer

Objective: The purpose of the study was to investigate the relationship between the expression of estrogen receptor(ER), progestogen receptor(PR), human epidermal growth factor receptor(Her-2), Ki-67 and the effect of neoadjuvant chemotherapy in breast cancer. Methods: The expression of ER, PR, Her-2 and Ki-67 in 45 breast cancers which received neoadjuvant chemotherapy was detected by immunohistochemistry. Results: The effective rates in ER negative and PR negative groups were higher than those in ER positive and PR positive groups(83.3% vs 59. 4%, 82.4% vs 60.6%). There was no significant difference of the effective rate between Her-2 overexpressed group and Her-2 non-overexpressed group(81.8% vs 64.1%), and the same thing happened between Ki-67 negative group and Ki-67 positive group(67.7% vs 63.2%). Conclusion: In the patients with breast cancer, ER, PR negative ones were more sensitive to neoadjuvant chemotherapy. These patients may get more benefits from chemotherapy. ER, PR could be feasible markers for predicting the effective rate of neoadjuvant chemotherapy.

ER、PR、Her-2及Ki-67在乳腺癌患者新辅助化疗后表达情况及意义分析

目的探讨雌激素受体(ER)、孕激素受体(PR)、人表皮生长因子受体2(Her-2)及细胞增殖标志物Ki-67抗原(antigen Ki-67,ki67)在乳腺癌患者新辅助化疗后表达情况及意义。方法回顾性分析2020年1月至2022年1月在我院接受乳腺癌新辅助化疗的患者68例,研究患者癌组织化疗前后ER、PR、Her-2及Ki-67表达情况。结果乳腺癌患者肿瘤组织内ER、PR、Her-2新辅助化疗前后阳性率比较,差异均无统计学意义(P>0.05);Ki-67新辅助化疗后高表达率为58.82%,低于化疗前的77.94%,差异有统计学意义(P<0.05)。结论乳腺癌新辅助化疗前后肿瘤组织内ER、PR、Her-2表达无差异,但会造成Ki-67高表达率显著降低,可作为预测乳腺癌新辅助化疗药物敏感性和疗效的敏感指标。

Correlation of Hormonal Receptors Estrogen Receptor, Progesterone Receptor and Her-2/Neu with Tumor Characteristics in Breast Carcinoma: Study of 100 Consecutive Cases

Introduction-Breast cancer is the most common cancer and leading cause of death in women. In India, its incidence is rapidly rising over last few decades. Present study is aimed to study the pattern of expression of hormonal receptors and Her-2/neu in invasive breast carcinoma and to correlate estrogen receptor (ER), progesterone receptor (PR) and Her-2/neu expressions with various clinicopathological parameters. Material and methods: The present study was carried out in Department of Pathology, S.C.B. Medical College, Cuttack in the year 2013 taking consecutive 100 cases. Routine H&E staining for histological diagnosis and IHC analysis for ER, PR and Her 2/neu was carried out in all 100 cases of breast malignancies. Results: 99% of cases are invasive breast carcinoma, not otherwise specify (IDC-NOS). The age ranges from 23 years to 72 years. Majority of tumors are of grade 2 (70%) followed by grade 3 (30%). ER PR and Her-2/neu expression are seen in 45%, 35% and 30% respectively. Triple negative cases comprise 35%. Higher number of grade 2 tumor shows ER, PR positivity as compared to grade 3 tumors. Her-2/neu expression does not show any significant correlation with age or lymph node status of the patient. Conclusion: ER and PR expression in breast cancers in the current study are found to be comparable to the findings of other authors, but the frequency of HER-2/neu expression is slightly higher. Significant correlation is observed between hormonal receptor status and the grade of the tumor. Inverse relationship is found between Her-2/neu expression and ER, PR receptor status. Her-2/neu expression is increased with size and high grade of tumor.

青年和绝经后女性乳腺癌c-erbB-2、p53、ER和PR受体表达及意义

目的 探讨青年和绝经后女性乳癌c erbB 2、p53、ER、PR的表达及意义。方法 采用SP法检测青年组 (13 1例 )与绝经组 (13 6例 )乳癌组织中各指标的表达及其与临床分期、腋淋巴结 (ALN )转移、3年无病生存率 (DFS)之间的关系。结果 c erbB 2阳性与临床分期、ALN转移相关 (P <0 .0 5) ,c erbB 2阳性者 3年DFS低于阴性者 (P <0 .0 5)。青年组c erbB 2、p53阳性率高、ER阳性率低 (P <0 .0 1) ,3年DFS低于绝经组 (P <0 .0 5)。结论 c erbB 2表达是乳腺癌预后重要指标 ,青年乳腺癌c erbB 2、p53阳性率高 ,ER阳性率低 ,3年DFS低 。

90例乳腺良性病变组织中ER和PR的表达

应用免疫组化方法对９０例良性乳腺病变组织进行ＥＲ、ＰＲ的检测。结果：ＥＲ阳性率为８４．４％，ＰＲ为８３．３％，与同期乳腺癌的ＥＲ和ＰＲ阳性率相比较有非常显著性意义。ＥＲ阳性以纤维腺瘤、导管内乳头状瘤、囊性乳腺增生症最为常见，小叶内增生ＥＲ阳性相对减少。同时对乳腺组织间质中存在有背景染色问题加以讨论。

乳腺X线钼靶表现与ER、PR和HER2表达的乳腺癌亚型的病理对照研究

目的探讨数字化钼靶摄影乳腺癌的相关影像特征和乳腺癌生物学指标雌激素受体(ER)、孕激素受体(PR)、人类表皮生长因子(HER2)的相关性。方法依据乳腺影像报告和数据系统(BI-RADS)X线部分评估乳腺浸润性导管癌的X线征象,通过免疫组化取得ER、PR和HER2表达结果,运用χ~2验或者Fisher精确概率法检验分析浸润性乳腺癌的生物学指标与乳腺X线相关指标的相关性。结果单纯肿块多见于Luminal A型;单纯钙化多见于Luminal B型和HER2过表达型;局部致密伴钙化及结构扭曲伴钙化病变多见于HER2过表达型。HER2过表达型乳腺癌钙化多呈细小多型性,区域性分布,Luminal A型乳腺癌钙化以不定型和细小多型性多见。结论乳腺癌的数字化X线表现可一定程度上预测其分子亚型,为临床治疗及判断其预后提供影像学方面的根据,具备潜在的临床推广应用价值。

C-erbB2、PCNA、ER、PR在126例乳腺癌中的表达及临床意义

目的:研究C-erbB2、PCNA、ER、PR在乳腺癌中的表达及其与乳腺癌临床、病理因素之间的关系。方法:采用免疫组化SP法检测126例乳腺癌组织C-erbB2、PCNA、ER、PR蛋白的表达。结果:C-erbB2、pC-NA、ER、PR在乳腺癌阳性表达率分别为:36.5%,95.2%,65.1%,54%。C-erbB2、pCNA、ER、PR蛋白阳性表达率和表达强度与乳腺癌患者的年龄、淋巴结转移、肿瘤大小、pTNM分期差异性无统计学意义(P>0.05)。C-erbB2、PCNA与组织学分级差异具有统计学意义(P<0.05)。C-erbB2与ER、PR均呈负相关(r=-0.344,P=0.000;r=-0.226,P=0.011)。结论:C-erbB2,PCNA过表达者预后差,可以作为判断乳腺癌患者预后的有效指标。

ER、PR、HER-2、Ki-67与乳腺癌新辅助化疗疗效相关性分析

目的探讨雌激素受体(ER)、孕激素受体(PR)、人表皮生长因子受体2(HER-2)、Ki67抗原(Ki-67)与乳腺癌新辅助化疗疗效相关性分析。方法采用免疫组织化学方法检测81例乳腺癌新辅助化疗前后ER、PR、HER-2、Ki-67的表达情况,并评估其与乳腺癌新辅助化疗有效率的关系。结果 81例患者中临床RR79%,术后p CR(9.9%),tp CR(6.2%)。达到p CR+tp CR率,(ER阴性)23.0%>(ER阳性)12.7%,(PR阴性)28.6%>(PR阳性)9.4%;ER、PR、HER-2及Ki67等与新辅助化疗疗效之间差异无统计学意义。新辅助化疗前后ER、PR、HER-2的状态改变不明显,差异无统计学意义(P>0.05),而Ki67的表达数量有统计学意义(P<0.05),其降低了Ki67的表达水平。结论乳腺癌新辅助化疗可有效控制肿瘤,ER或PR阴性者较阳性者可获得更高的p CR+tp CR率,Ki67可作为化疗药物敏感性和耐药性的预测指标。

乳腺癌新辅助化疗疗效及ER/PR,HER2,Ki67,CyclinA2的化疗预测作用

目的探讨乳腺癌新辅助化疗疗效及ER/PR,HER2,Ki67,CyclinA2的疗效预测价值。方法 2004年10月～2009年12月50例Ⅰ～Ⅲ期原发性乳腺癌,采用含紫杉类（TP/TC或TE/PE/TEC方案）或蒽环类（EC/FEC方案）联合方案,术前化疗2～6周期,45例接受手术,术后完成规定化疗,应用B超结合触诊判断临床疗效。结果化疗前后肿瘤中位最大径分别为3.6 cm和2.2 cm,有统计学差异（Z=-5.723,P=0.000）。临床疗效：CR 3例（6%）,PR 35例（70%）,SD 11例（22%）,PD 1例（2%）,临床RR 76.0%（38/50）。45例接受手术,术后3例pCR（3/45,6.7%）,3例tpCR（3/45,6.7%）。4年无病生存期（DFS）为86.2%,4年总生存率为93.1%,中位DFS 62.4月[SE：2.535,95%CI（57.450～67.388）]。不同情况下肿瘤缩小比例并无统计学差异,包括月经状态（绝经前vs.绝经后,46.4%vs.40.6%,P=0.536）、激素受体状况（阳性vs.阴性,43.0%vs.42.2%,P=0.929）、HER2（阳性vs.阴性,41.3%vs.43.9%,P=0.774）、Ki67（阳性vs.阴性,47.2%vs.43.1%,P=0.363）、CyclinA2（阳性vs.阴性,34.3%vs.50.0%,P=0.375）、分化程度（高分化vs.中分化vs.低分化,44.1%vs.42.9%vs.41.3%,P=0.983）以及不同化疗方案（TP/TC vs.TE/PE/TEC vs.EC/FEC,52.7%vs.39.8%vs.38.9%,P=0.440）。结论紫杉类及蒽环类药物联合方案用于浸润性乳腺癌的术前化疗,可有效控制肿瘤。ER/PR,HER2,Ki67,CyclinA2的状态与肿瘤缩小比例之间并无统计学意义的关联性。

乳腺癌ER、PR、p53及c-erbB-2癌基因的多因素分析

目的:探讨乳腺癌组织ER、PR、p53及c-erbB-2癌基因蛋白表达与淋巴结转移、患者年龄及组织学类型的相关性。方法:采用乳腺组织免疫组化SP法检测124例乳腺癌患者中ER、PR、p53及c-erbB-2的表达,并分析其临床意义。结果:ER、PR的阳性表达率与淋巴结转移、患者年龄及组织学类型的无关。(P>0.05),ER、PR与p53及c-erbB-2、表达之间存在负相关性,p53、c-erbB-2阳性表达率与有无淋巴结转移、年龄有关(P<0.05),与组织学类型无关(P>0.05)。结论:ER、PR、p53及c-erbB-2的检测对乳腺癌治疗方案的制定和预后估计有重要临床意义。

针刺对乳腺癌新辅助化疗患者ER和PR表达的影响

目的:观察针刺对乳腺癌新辅助化疗患者ER和PR表达的影响。方法:根据随机数字表将符合病例纳入标准的72例患者随机分为针刺组(36例)和对照组(36例)。对照组采用乳腺癌的新辅助化疗治疗。新辅助化疗药物采用:诺维本。用法:静脉冲入30 mg/平方米,1次/周。药物溶于125 mL等渗盐水中,于15~20 min内静脉输入。输液后,沿此静脉再输入250 mL等渗盐水冲洗。新辅助化疗药物治疗4个周期。针刺组在采用乳腺癌新辅助化疗治疗的基础上同时给予针刺治疗,主穴采用膻中、三阴交、太冲、肩井、少泽、足三里。配穴采用辨证选穴,肝郁气滞型加肝俞;脾虚痰湿型加丰隆、阴陵泉;冲任失调型肾俞、命门、太溪;瘀毒内阻型加膈俞、合谷;气血双亏型加气海、血海。针刺组进行4周针刺治疗,每周3次。4周后分别观察两组患者ER和PR表达情况、患者生活质量和中医临床症状等。结果:(1)对照组、针刺组ER和PR表达情况比较,治疗前后ER、PR表达经统计学处理,无显著性差异(P>0.05)。(2)对照组、针刺组患者治疗前后组内比较生活质量评分,差异有统计学意义(P<0.05)。两组患者治疗后组间比较生活质量评分,差异有统计学意义(P<0.05)。表明患者在新辅助化疗4个周期内生活质量明显下降,针刺能明显改善患者因接受新辅助化疗导致的生活质量下降。(3)两组患者中医临床症状积分治疗前后比较差异均有统计学意义(P<0.05)。两组患者治疗后进行组间比较差异有统计学意义(P<0.05)。表明患者在新辅助化疗4个周期内中医临床症状积分明显下降,针刺能明显改善患者因接受新辅助化疗导致的中医临床症状积分下降。(4)安全性观察:两组患者在治疗期间均不同程度出现相应的化疗后不良反应。但对照组化疗后不良反应比针刺组严重,如体重减轻、脱发等。结论:选用诺维本进行4个周期的新辅助化疗对ER、PR的表达无明显影响;诺维本进行4个周期新辅助化疗的同时加用膻中、三阴交、太冲、肩井、少泽、足三里为主穴针刺对ER、PR的表达无明显影响;患者在新辅助化疗4个周期内生活质量明显下降,针刺能明显改善患者因接受新辅助化疗导致的生活质量下降;患者在新辅助化疗4个周期内中医临床症状积分明显下降,针刺能明显改善患者因接受新辅助化疗导致的中医临床症状积分下降。

c-erbB-2、ER、PR在乳腺癌中的表达及其临床意义

目的探讨c-erbB-2、雌激素受体(ER)、孕激素受体(PR)在乳腺癌中的表达及其临床意义。方法采用免疫组化方法检测54例乳腺癌患者中c-erbB-2、ER、PR的表达,并分析其与临床的关系。结果54例乳腺癌中,ER、PR、c-erbB-2的阳性表达率分别为48.2%(26/54)、53.7%(29/54)、72.2%(39/54)。ER、PR的阳性表达率与患者年龄、有无淋巴结转移及组织学类型的差异无统计学意义(P>0.05);c-erbB-2阳性表达率与有无淋巴结转移的差异有统计学意义(P<0.05),与患者年龄、肿瘤体积及组织学类型的差异无统计学意义(P>0.05);ER、PR与c-erbB-2表达一致率为46.3%(25/54),表达不一致率为27.8%(15/54),ER、PR表达与c-erbB-2表达无显著相关性(P>0.05)。结论c-erbB-2的阳性表达是乳腺癌患者预后差的指标,联合检测ER、PR更有助于乳腺癌患者临床疗效和预后的判断。

ER阳性乳腺癌PR亚型与C-erbB-2表达关系的研究

目的研究雌激素受体(ER)和孕激素受体(PR)阳性乳腺癌孕激素受体亚型(PR-A、PR-B)的表达,探讨PR-A、PR-B及其比值(PR-A/PR-B,A/B)与表皮生长因子受体-2(C-erbB-2,Her-2/neu)表达的关系及对无病生存期的影响。方法选取该科2001年3月～2003年10月手术治疗ER、PR阳性乳腺癌65例,癌组织标本采用免疫组织化学SP法检测PR-A、PR-B表达状态,半定量法判定结果,运用SPSS13.0统计软件包及χ2检验进行结果处理,Kaplan-Meier法描述生存曲线。结果PR-A、PR-B阳性表达物位于细胞核中,细胞质及细胞膜无表达;乳腺癌孕激素受体亚型PR-A阳性表达占90.77%(59/65)、PR-B占58.46%(38/65)(P<0.05)。59例PR-A阳性表达乳腺癌中,C-erbB-2阳性48例(81.36%),阴性11例(18.64%)(P<0.01);39例PR-A/PR-B(A/B)值>1的患者中,C-erbB-2阳性33例(84.62%),阴性6例(15.38%)(P<0.05)。在C-erbB-2阳性表达乳腺癌中,A/B值>1的患者无病生存期明显低于A/B值≤1的患者(P<0.05),而C-erbB-2阴性表达时两组的无病生存期差异无显著性(P>0.05)。结论在雌、孕激素受体阳性乳腺癌中,孕激素受体亚型PR-A表达高于PR-B表达,且A/B值增高(>1)。在C-berB-2阳性表达的乳腺癌中,A/B值>1时临床预后差,预示对三苯氧胺治疗不敏感。

乳腺原位癌X线表现与ER、PR、CerbB2表达的相关性研究

目的分析乳腺原位癌的重要X线征象,并探讨其与主要生物学指标(ER、PR、CerbB2)表达之间的关系。方法免疫组化检测56例乳腺导管原位癌及45例乳腺良性病变组织ER、PR、CerbB2的表达水平;并将其表达情况与X线征象钙化、毛刺、非对称致密和结构扭曲进行相关性分析。结果乳腺原位癌组织中ER、PR、CerbB2的表达明显高于乳腺良性病变。其中钙化与ER表达呈正相关,边缘毛刺与PR和CerbB2表达呈负相关;结构扭曲和非对称致密与ER、PR、CerbB2表达无明显相关性;淋巴结转移组ER、CerbB2阳性表达率明显高于淋巴结无转移组。结论乳腺原位癌的重要X线表现与ER、PR、CerbB2表达之间均存在一定相关性,可根据X线表现对癌灶的生物学行为和预后进行评估。

ER、PR、HER-2、P53在乳腺浸润性导管癌组织中的表达及临床意义

目的研究乳腺浸润性导管癌组织中ER、PR、HER-2、P53的表达情况,并探讨其临床意义。方法通过免疫组化方法检测359例乳腺浸润性导管癌组织中ER、PR、HER-2、P53的表达情况,分析这些生物学标志物与患者年龄、肿瘤大小、组织学分级、区域淋巴结转移、TNM分期等临床病理参数之间的关系。结果 ER、PR、HER-2、P53蛋白的阳性表达率分别为60.7%、55.7%、35.1%、42.3%,在组织学分级之间的差异均有统计学意义(P<0.01),ER在直径较小肿瘤中表达率高,P53在TNM分期为Ⅲ期的肿瘤中的表达率高,差异具有统计学意义(P<0.05)。ER与PR的表达呈正相关,ER与HER-2、P53的表达呈负相关,PR与HER-2、P53的表达呈负相关。三阴性乳腺癌与高组织学分级、高P53表达相关(P<0.01)。结论利用免疫组化联合检测ER、PR、HER-2和P53蛋白的表达,将有助于选择乳腺癌的最优治疗策略,从而实现个体化治疗。