曲妥珠单抗治疗141例人表皮生长因子受体2阳性乳腺癌的回顾性分析

目的 总结曲妥珠单抗在人表皮生长因子受体2(Her-2)阳性乳腺癌患者新辅助、辅助和复发转移治疗中的临床应用经验,评价其与化疗联用的疗效.方法 对2004年1月至2008年12月门诊应用曲妥珠单抗治疗的141乳腺癌患者进行回顾性分析.随访时间为3～319个月.分析患者的无病生存时间(DFS),比较患者辅助、复发转移一线及二线使用曲妥珠单抗治疗的总生存时间(OS)、治疗失败时间(TTF)和临床有效率的差异.结果 与曲妥珠单抗治疗联用的新辅助化疗中,紫杉醇联合卡铂方案占66.7%;辅助治疗中,蒽环类和蒽环类序贯紫杉类方案占53.9%.复发转移的患者治疗后中位DFS为17个月.复发转移的患者经一线曲妥珠单抗联合化疗治疗后,临床总有效 率为84.5%,中位TTF为24个月;二线治疗有效率为44.4%,中位TTF为5个月.两者比较,差异有统计学意义(P=0.002).结论 紫杉醇和卡铂化疗联合曲妥珠单抗,值得在新辅助治疗中推广,紫杉类和蒽环类联合或序贯靶向治疗仍是辅助治疗的标准方案.转移性乳腺癌一线应用曲妥珠单抗联合化疗比二线治疗的临床有效率更高,在继续应用曲妥珠单抗的基础上改用化疗方案,可提高治疗有效率,减少治疗失败的概率.     

CEF方案序贯多西他赛辅助化疗治疗45例淋巴结阳性乳腺癌

[目的]评价CEF方案序贯多西他赛在淋巴结阳性乳腺癌术后辅助化疗中的疗效与毒副反应。[方法]90例淋巴结阳性乳腺癌患者术后分为两组,分别给予CEF方案（A组）和CEF方案序贯多西他赛（B组）进行辅助化疗。随访时间38～48个月。[结果]A组3年无病生存率（DFS）57.8%,3年总生存率（OS）为75.6%。B组3年DFS为84.4%（38/45）,3年OS为91.1%（41/45）,两组比较差异有显著性（P值均〈0.005）。在绝经后、淋巴结转移4～9枚,T3期以及ER阴性患者中B组的3年无病生存率高于A组。多因素分析治疗方法、肿块大小及受体状况等方面与3年DFS及3年OS均相关。[结论]CEF方案序贯多西他赛的化疗方案在淋巴结阳性乳腺癌术后辅助化疗中比CEF方案得到更高的3年无病生存率及总生存率,特别是对肿块相对较小、受体阴性的患者而言获益更大。     

胃癌术后氟尿嘧啶联合奥沙利铂或紫杉醇序贯替吉奥方案的临床观察#br#

目的探讨胃癌术后氟尿嘧啶联合奥沙利铂或紫杉醇序贯替吉奥（S 1）方案辅助化疗的效果和安全性。 方法回顾性分析福建省肿瘤医院2009年1月至2013年9月166例胃癌D2根治术后患者的病历资料,其中108例接受氟尿嘧啶联合奥沙利铂或紫杉醇双周方案（对照组）,58例接受氟尿嘧啶联合奥沙利铂或紫杉醇双周方案序贯S 1（观察组）,采用 Kaplan Meier法进行生存分析并比较两组的中位无病生存期（DFS）和总生存期（OS）,Cox比例风险回归模型分析影响预后的独立因素。  结果全组随访99～929个月,中位随访时间403个月。观察组的中位DFS和OS分别为525和639个月,长于对照组的352个月和499个月,差异有统计学意义（P＜005）。单因素分析显示病理分期、是否序贯S 1与预后有关,而性别、年龄、ECOG评分、组织分化程度、浸润深度、淋巴结状态、原发灶部位、化疗方案及化疗周期数与预后无关。多因素分析显示病理分期、是否序贯S 1治疗均是影响OS和DFS的独立因素。 结论胃癌术后氟尿嘧啶联合奥沙利铂或紫杉醇序贯S 1方案辅助化疗可明显改善患者预后,且病理分期、是否序贯S 1治疗可作为独立预后指标用于指导胃癌D2根治术后辅助治疗。     

Ki-67表达与Ⅱ/Ⅲ期乳腺癌新辅助化疗疗效及预后的关系

目的:探讨乳腺癌组织中Ki-67 抗原（简称 Ki-67）表达与新辅助化疗(neoadjuvant chemotherapy,NAC)疗效的关系。寻找新辅助化疗有效的预测因子。方法:选取我院2012年6月至2017年6月收治的112例接受NAC治疗的Ⅱ/Ⅲ期乳腺癌患者作为研究对象。使用免疫组化方法检测NAC治疗前乳腺癌患者的Ki-67表达情况，化疗2~4周期后评估临床疗效。分析乳腺癌中Ki-67的表达与临床病理学特征的关系以及Ki-67的表达与NAC疗效的关系。结果:原发性乳腺癌组织中Ki-67的高表达率为65.18%，Ki-67的高表达与病理组织学分级（P=0.017）有关。Ki-67高表达的患者新辅助化疗后获得临床完全缓解（cCR）+临床部分缓解（cPR）的比率（89.0%）明显高于Ki-67低表达的患者新辅助化疗后获得cCR+cPR的比率（61.5%）（P=0.001）。中位随访时间 37个月，Ki-67高表达患者的无病生存时间（DFS）低于Ki-67低表达的患者（P=0.023），Ki-67高表达患者的总生存时间（OS）低于Ki-67低表达的患者（P=0.040）。结论:Ki-67的高表达与乳腺癌恶性程度密切相关，并可作为预测乳腺癌新辅助化疗敏感度及预后的独立指标。     

拓扑异构酶Ⅱα和Ki-67的表达对Ⅰ～Ⅲ期非小细胞肺癌术后辅助化疗疗效的预测意义*

目的:探讨TopⅡα 和Ki-67在NSCLC 中的表达情况,并评价上述2 项指标对接受辅助化疗的NSCLC 患者的预后及预测价值。方法:收集2004年1 月至2007年12月在解放军总医院接受手术治疗且术后行至少1 个周期辅助化疗且随访资料完整的Ⅰ～Ⅲ期NSCLC 病例共152 例。利用免疫组化法检测上述病例中TopⅡα 和Ki-67的表达,分析其表达特点和全组病例的临床病理特征、治疗特征、分子特征与生存规律的关系。结果:TopⅡα 与Ki-67的过表达率分别为22.4% 和36.2% ,两者表达中度相关（r=0.516,P<0.001）,且其表达程度与年龄、性别、吸烟状况、病理类型及临床分期等无关。截至末次随访2009年4 月1 日,41例死亡,中位生存期未达到,中位DFS 为23.0 个月。单因素分析显示男性（P=0.041）、临床分期早（P=0.001）、N 分期早（P<0.001）、非腺癌（P=0.003）及TopⅡα 高表达者（P=0.011）较女性、临床分期晚、N 分期晚、腺癌及TopⅡα 低表达者中位DFS 显著延长,而年龄、吸烟与否、化疗方案的类型及Ki-67的表达程度对DFS 无显著影响。分层分析发现,TopⅡα 低表达时含NVB 方案组较其他方案DFS有明显延长趋势（P=0.059）;Ki-67低表达时,NVB 组中位DFS 显著高于TXT 组（P=0.032）。 而在TopⅡα 或Ki-67高表达时,各化疗方案组对DFS 的影响亦无明显差异。COX 多因素分析显示,腺癌与否、N 分期及TopⅡα 表达程度均是影响DFS 的独立预后因素。结论:对于接受手术治疗的NSCLC 患者,TopⅡα 高表达者较低表达者更能从辅助化疗中获益;且在TopⅡα 低表达时,使用含NVB 的化疗方案较其他常用方案似乎能给患者带来更好的收益。而Ki-67的表达对DFS 却无类似预测价值;但在Ki-67低表达时,含GEMZ 和PTX 方案,特别是含NVB 方案可能较TXT 有更好的疗效。TopⅡα 可能成为判断NSCLC 辅助化疗疗效及筛选化疗药物的新预测指标。      

新辅助化疗对乳腺癌疗效和雌激素受体孕激素受体Ki-67和人表皮生长因子受体2表达的影响分析

目的了解新辅助化疗（NAC）在局部进展期乳腺癌治疗前后ER、PR、Ki-67及HER-2的变化,探讨其与新辅助化疗疗效之间的相关关系。方法 46例接受新辅助化疗的乳腺癌患者纳入研究,分析患者术前弹射式空芯针穿刺活检标本和术后大标本癌组织ER、PR、Ki-67和HER-2表达的变化。患者化疗前行乳腺肿瘤粗针穿刺活检并免疫组化方法检测肿瘤组织ER、PR、Ki-67和HER-2的表达。化疗后评估疗效并对接受手术的患者的手术标本通过同法检测各指标的表达。结果新辅助化疗前后ER、PR、Ki-67和HER-2的表达均发生了改变,新辅助化疗前ER、PR、Ki-67和HER-2阳性表达的肿瘤组织新辅助化疗后下调（ER：82.6%和80.4%;PR：78.3%和71.7%;Ki-67：39.1%和30.4%;HER-2：28.3%和26.1%）,但没有统计学意义（P〉0.05）。ER、PR、Ki-67和HER-2阳性表达疗效有效率与阴性表达有效率分别为ER：68.4%和50.0%;PR：66.7%和60.0%;Ki-67：77.8%和57.1%;HER-2：53.8%和69.7%。ER、PR、Ki-67、HER-2表达状态与化疗效果均无明显的关系（均P〉0.05）。结论新辅助化疗可以改变ER、PR、Ki-67和HER-2的表达,本临床研究未发现ER、PR、Ki-67和HER-2的变化与局部进展期乳腺癌的新辅助化疗疗效有相关关系。     

乳腺癌新辅助化疗残余肿瘤组织病理信息与预后分析

目的 探讨乳腺癌新辅助化疗前后肿瘤组织病理信息的变化及对预后的影响。方法 对2014年1月—2016年5月就诊于辽宁省肿瘤医院乳腺外科并行规范乳腺癌新辅助化疗的177例患者回顾性分析,探讨乳腺癌新辅助化疗前后肿瘤组织病理信息的变化,并分析残余肿瘤组织病理信息对无病生存期(DFS)和总生存期(OS)的影响。结果 177例乳腺癌患者中位随访时间为37个月,37个月无病生存率和总生存率分别为84.0%和95.0%,4年无病生存率和总生存率分别为79.7%和81.1%。新辅助化疗后乳腺癌患者的DFS独立危险因素为原始T分期、原始N分期、存在脉管侵袭、新辅助化疗后Ki-67增加。OS的独立危险因素为原始T分期、原始N分期。而新辅助化疗前后ER状态的改变、PR状态的改变、HER-2状态的改变与患者预后无关(P＞0.05)。结论 乳腺癌新辅助化疗前后分子生物学指标ER、PR、HER-2、Ki-67可以发生改变,但与乳腺癌患者预后无关。原始肿瘤T分期、原始肿瘤N分期、存在脉管侵袭和Ki-67增加是影响乳腺癌患者DFS的危险因素。原始肿瘤T分期、原始肿瘤N分期是影响乳腺癌患者OS的危险因素。     

Ki-67与乳腺癌临床病理特征及新辅助化疗疗效的相关性

目的：分析Ki-67与乳腺癌临床病理特征对新辅助化疗（neoadjuvant chemotherapy,NCT）疗效和预后的影响,探讨NCT疗效的预测因素。方法用免疫组化法检测320例局部晚期乳腺癌患者癌组织中ER、PR、HER-2及Ki-67表达状况。进行NCT 4～6个周期后手术。分析临床病理特征与病理完全缓解率（patho-logic complete response,pCR）之间的关系。临床病理参数与疗效分析用χ2检验,影响预后因素用Cox多因素回归分析。结果 Ki-67表达与ER（r=－0.174,P=0.002）和PR（r=－0.132,P=0.019）呈负相关,与HER2（r=0.140, P=0.012）和乳腺肿瘤大小（r=0.132,P=0.019）呈正相关;ER阴性组pCR率显著高于ER阳性组（26.9%vs 7.4%,χ2=22.761,P=0.000）;PR阴性组pCR率显著高于阳性组（22.7%vs 10.9%,χ2=7.950,P=0.005）;Ki-67高表达组pCR率18.0%（41/228）优于Ki-67低表达组8.6%（8/92）（χ2=4.552,P=0.033）;化疗后Ki-67表达下降组pCR率19.8%（48/243）优于未下降组1.3%（1/77）（χ2=15.356,P=0.000）;各分子亚型间化疗疗效差异显著,Luminal A型pCR率为1.4%（1/71）,Luminal B型pCR率为15.3%（25/163）,HER2过表达型pCR率为31.3%（14/45）,三阴性型pCR率为22.0%（9/41）（χ2=20.639,P=0.000）;用Kaplan-Meier法进行生存分析,Ki-67低表达组无病生存时间（DFS）和总生存时间（OS）均优于Ki-67高表达组,两者均为P=0.034。结论 Ki-67高表达患者对化疗更敏感,但预后较差。化疗前Ki-67的表达和化疗后Ki-67变化是影响DFS独立的预后因素。ER、PR、Ki-67指数及分子分型可以作为NCT疗效的预测指标,Ki-67指数与ER、PR、HER2之间存在相关性。     

ER和Ki-67对63例局部晚期乳腺癌新辅助化疗疗效的观察

通过回顾性分析局部晚期乳腺癌新辅助化疗的疗效进而明确生物标志物对疗效和预后的判断意义。方法:分析2006年1月至2007年12月间63例接受新辅助化疗局部晚期乳腺癌患者,免疫组化法检测ER、HER-2、Ki-67表达情况,术后均接受辅助放疗,并根据激素受体情况选择内分泌治疗。结果:全部患者新辅助化疗有效率达93.6%,不良反应可以耐受。生物标志物表达差异与疗效无明显的相关性,中位随访42个月后,单因素分析显示术前Ki-67≥30%、化疗前与术后ER（-）及术后HER-2（++～+++）是局部晚期乳腺癌无病生存率的不良预后因素。多因素回归分析显示治疗前ER（-）和术后HER-2（++～+++）是对无病生存率有独立影响的不良预后因素（P<0.05）。结论:治疗前ER（-）是局部晚期乳腺癌最重要的不良预后因素,化疗前测定的Ki-67指数和ER表达情况更能反应肿瘤的恶性程度。      

蒽环类药物及蒽环序贯紫杉类方案对乳腺癌辅助化疗后心脏毒性的影响

目的 研究蒽环类药物及蒽环序贯紫杉类两种化疗方案,对乳腺癌辅助化疗后引起的心脏毒性影响.方法 乳腺癌辅助化疗患者84例,根据化疗方案的不同,将其分为蒽环类组42例和蒽环序贯紫杉类组42例.蒽环类组患者接受蒽环类药物化疗方案治疗,而蒽环序贯紫杉类组则接受蒽环序贯紫杉类化疗方案治疗.试验过程中,分别于化疗前、首次化疗后及末次化疗次日3个实验时间点上,测定所有研究对象的静脉肌钙蛋白T和肌红蛋白含量,同时借助自制心脏毒性评级表评价患者心脏毒性级别,以评估上述两种化疗方案对患者引起的心脏毒性程度.结果 两种化疗方案组患者在进行辅助化疗后,静脉肌钙蛋白T含量均没有超出正常范围(P<0.1 ng/ml);在末次治疗后,蒽环序贯紫杉类组静脉肌钙蛋白T含量为(0.0210±0.0166)ng/ml,而另外一组为(0.0390±0.0168)ng/ml,前者低于后者,但无统计学意义(P>0.05);两组患者在3个实验时间点上的肌红蛋白含量均未发生明显变化,且均低于21 ng/ml;两组患者末次化疗后心脏毒性评级表情况,未出现明显差异.结论 蒽环序贯紫杉类化疗方案较蒽环类药物化疗方案,并没有引起患者心脏毒性的明显增大;静脉肌钙蛋白T含量及肌红蛋白含量在评估患者心脏毒性程度方面发挥一定的作用,但尚存在进一步优化之处.     

Taxane-Based Regimens as Adjuvant Treatment for Breast Cancer: a Retrospective Study in Egyptian Cancer Patients

Background: To evaluate the impact of adding taxanes to anthracycline-based regimens in the adjuvant settingin localized young female breast cancer patients on the overall survival (OS) and the disease free survival (DFS).Materials and Methods: This retrospective study included all female breast cancer patients who were candidatesfor adjuvant chemotherapy presenting to Kasr Al Ainy centre of clinical oncology and Cairo oncology centre(Cairo Cure) in the period from January 2005 till December 2010. Results: Our study included 865 patients, 732of whom received anthracycline based regimens and 133 taxane based regimens. The mean age of patients was39 years. After a median follow up of 50 months the median DFS was 48.4 months. Survival analysis indicatedthat the tumor size (>5cm vs. <5cm) p=0.001), nodal involvement (Yes vs. No) p=0.0001) and pathology (invasivelobular vs. ductal) p=0.048) affected DFS. As regards hormonal status, ER, PR and HER 2neu positive patientshad longer DFS (p=0.001, 0.003, 0.106). On multivariate analysis DFS was affected by tumor size and lymph nodeinvolvement (p=0.014, 0.007). Subgroup analysis showed improvement in arms treated with taxanes in terms ofDFS with positive Her2neu, ER and PR, but this was not statistically significant. Conclusions: Adding adjuvanttaxanes to anthracyclines is beneficial for treatment of localized breast cancer among all subgroups, especiallyhigher risk groups .The type of adjuvant chemotherapy regimens and tumor characteristics have direct effectson DFS.     

A prognostic model based on combining estrogen receptor expression and Ki-67 value after neoadjuvant chemotherapy predicts clinical outcome in locally advanced breast cancer: Extension and analysis of a previously reported cohort of patients

Background

Ki-67 expression has gained attention as a breast cancer prognostic factor, however its significance in the remaining malignant cells after neoadjuvant chemotherapy (NAC) has been rarely examined. This investigation, extension and analysis of a previously reported cohort of patients, evaluates the significance of Ki-67 and estrogen receptor (ER) expression after NAC in LABC (locally advanced breast cancer).

Patients and methods

clinical stage, tumor size, clinical and pathological lymph node involvement, Ki-67, ER, progesterone receptor (PgR), HER2 expression, grading and clinical response were evaluated before and after NAC in 110 patients with LABC. Ki-67 expression was assessed both in pre and post-therapy histological samples, using >15% positive cells as cut-off value to distinguish high from low Ki-67 expressing tumors.

Results

six patients (5.45%) attained pCR after NAC. A significant relationship between elevated post-CT Ki-67 and ER expression was showed at Cox multivariate analysis of disease free survival (DFS).On univariate analysis high post-chemotherapy Ki-67 and ER status were associated with worse survival; at multivariate model included these results were confirmed.Based on these two parameters, a prognostic model identified two different groups: low risk (low postchemotherapy Ki-67 and ER positive, or either high post-chemotherapy Ki-67 or ER negative), and high risk (high post-chemotherapy Ki-67 and ER negative).The low risk group showed a good prognosis (median OS still not reached), while the high risk group had a worse OS (median 41 months).

Conclusions

Ki-67 value after NAC and ER status could predict a worse prognosis among LABC patients treated with NAC.     

Response and Long-Term Effect of Patients with Triple-Negative Breast Cancer Receiving Neo-Adjuvant Anthracycline-Based

OBJECTIVE The breast cancer lack of expression of estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor receptor 2 (HER-2) is defined as the Triple-negative breast cancer (TNBC). Our purpose is to compare the response and long-term effect of the TNBC and non-TNBC patients receiving neo-adjuvant anthracycline-based chemotherapy, and to investigate the mechanisms of TNBC affecting the survivals. METHODS Data of long-term follow-up (median, 5.4 years) of 326 patients who received neo-adjuvant chemotherapy with anthracycline-based regimen, during a period from 2000 to 2003, were analyzed. Expressions of ER, PR, HER-2, P53, Ki-67 and E-cadherin were determined using immunohistochemical staining method. A multivariate Cox regression analysis was used to analyze independent prognostic factors affecting the relapse-free survival (RFS) and overall survival (OS) rates. Clinical effects of the neo-adjuvant anthracycline-based chemotherapeutic regimen and the RFS and OS rates were compared between the patients with TNBC and non-TNBC, and the correlations among the triple- negative phenotype (TNP), tumor grading and the expressions of P53, Ki-67 and E-cadherins were analyzed. RESULTS TNP, TNM staging, histological grades, clinical response of the neo-adjuvant chemotherapy and pathological complete remission (pCR) rate were the independent prognostic factors affecting the survival rates. Furthermore, 70 (21.5%) of the 326 patients suffered TNBC. Compared with the subjects in non- TNBC group, the patients with TNBC had a significantly higher pCR rate (P=0.046) and clinical response rate (P＝0.037), but also decreased 5-year RFS (P=0.001) and OS (P=0.004) rates. The RFS and OS rates were not improved in the TNBC patients who achieved a clinical remission after the neo-adjuvant chemotherapy. The triple-negative phenotype was positively correlated with the level of P53, Ki-67 expression (P＝0.007, P＝0.028), but negatively correlated with level of E-cadherin (P＝0.034).CONCLUSION Both clinical remission rate and pCR rate of the TNBC patients receiving neo-adjuvant anthracycline-based chemotherapy are high, however, the long-term effect is poor.The mechanism may relate to a strong potential of proliferation and invasive metastasis, as well as lack of an effective therapeutic target in the TNBC patients.     

Ⅰ～Ⅲ期胃癌中VEGF、 HIF-1α和TGF-β1表达的临床意义及其预后价值

目的 探讨血管内皮生长因子（VEGF）、缺氧诱导因子1α（HIF-1α）和转移生长因子-β1（TGF-β1）在Ⅰ～Ⅲ期胃癌中的表达及其临床意义和预后价值。方法 收集2004年1月至2006年12月在解放军总医院接受根治性手术且TNM分期为Ⅰ～Ⅲ期的胃癌病例。采用组织芯片及免疫组化法检测VEGF、HIF-1α和TGF-β1的表达,并分析其表达与临床病理特征及预后的关系。结果 全组343例患者中,VEGF、HIF-1α和TGF-β1的阳性表达率分别为493％、30.9％和39.1％,且三者表达两两相关。全组患者的中位随访时间为70.0个月,至随访截止时间,出现复发或转移者232例,死亡218例,中位无疾病生存期（DFS）为23.0个月,中位生存期（OS）为31.1个月。单因素分析显示,年龄、是否全胃切除、是否含印戒细胞癌、Lauren分型、脉管癌栓、肿瘤直径、TNM分期、辅助化疗、VEGF及HIF-1α表达与DFS和OS有关（P＜005）;VEGF、HIF-1α和TGF-β1三者共阳性组的中位DFS（8.6个月）和中位OS（17.7个月）均小于双阳性、单阳性及三者共阴性组（P＜0.05）。Cox多因素分析显示,是否全胃切除、是否辅助化疗、TNM分期、VEGF及HIF-1α表达均为影响DFS和OS的独立预后因素。结论 对于接受根治性手术治疗的Ⅰ～Ⅲ期胃癌患者,VEGF和HIF 1α阳性表达可能是影响胃癌患者的不良预后因素。     

乳腺癌穿刺活检对HR和HER-2及Ki-67评价可靠性以及化疗对其影响研究

目的：研究乳腺癌空芯针穿刺活检（coreneedle biopsy,CNB）对激素受体（hormone receptor,HR）、HER-2及Ki-67表达状况评价的可靠性,探讨新辅助化疗（neoadjuvantchemotherapy,NAC）对乳腺癌分子生物学信息表达的影响,分析上述生物学指标对NAC疗效的预测价值。方法：选择2012-03-01-2013-01～31山东省肿瘤医院外科收治的乳腺癌患者177例,其中行NAc者95例作为NAC组,未行NAC者82例作为对照组。免疫组织化学SP法检测两组患者CNB和治疗性手术切除标本中ER、PR、HER-2及Kb67的表达状况,依据Miller-Payne分级系统评价化疗后病理反应,依据实体瘤反应评价标准（response evaluation criteria in solid tumors,RECIST）进行新辅助化疗的疗效评价。结果：对照组患者cNB和手术切除标本ER表达一致率为97．6％（80／82）,PR为95．1％（78／82）,HER-2为97．6％（80／82）,Ki-67为92．7％（76／82）,Spearman等级相关系数均〉0．8,P均〈0．05。NAC组和对照组CNB和手术切除标本比较,ER表达状况改变率分别为12．4％（10／79）和3．9％（2／82）,差异有统计学意义,P=0．014;PR表达状况改变率分别为24．0％（19／79）和2．4％（4／82）,差异有统计学意义,P=0．001;HER-2表达状况改变率分别为5．1％（4／79）和2．4％（2／82）,差异无统计学意义,P=0．379;Ki=67表达状况改变率分别为38．0％（30／79）和7．3％（6／82）,差异有统计学意义,Pd0．001。NAC前后ER阳性率分别为64。6％和53．2％,差异无统计学意义,P=0．146;PR阳性率分别为63．3％和45．6o／,差异有统计学意义,P=0．025;Ki-67高表达率分别为45．6％和15．2％,差异有统计学意义,P=0．017。化疗反应分级与ER、PR、HER-2表达变化无相关性,P均〉0．05;与Ki-67表达变化明显相关,P=0．008。ER和PR表达状况与NAC疗效无相关性,P均〉0．05;HER-2阳性的乳腺癌患者NAC有效率为81．8％,阴性者有效率为50．7％,差异有统计学意义,P=0．010;Ki-67高表达乳腺癌患者NAC有效率为70．2％,低表达者有效率为45．5％,差异有统计学意义,P=0．029。结论：cNB与手术切除标本在判断HR、HER-2和Ki-67表达状况上有很好的一致性;NAC能改变乳腺癌患者HR和Ki-67的表达状况,NAc使PR的阳性率降低,Ki-67的表达下降,ER阳性率有降低趋势,NAc对HER-2的表达无显著影响;HER-2阳性和Ki-67高表达的患者对化疗更敏感。     

Response and long-term effect of patients with triple-negative breast cancer receiving neo-adjuvant anthracycline-based chemotherapy

OBJECTIVE The breast cancer lack of expression of estrogen receptor （ER）, progesterone receptor （PR）, and human epidermal growth factor receptor 2 （HER-2） is defined as the Triple-negative breast cancer （TNBC）. Our purpose is to compare the response and long-term effect of the TNBC and non-TNBC patients receiving neo-adjuvant anthracycline-based chemotherapy, and to investigate the mechanisms of TNBC affecting the survivals. METHODS Data of long-term follow-up （median, 5.4 years） of 326 patients who received neo-adjuvant chemotherapy with anthracycline-based regimen, during a period from 2000 to 2003, were analyzed. Expressions of ER, PR, HER-2, P53, Ki-67 and E-cadherin were determined using immunohistochemical staining method. A multivariate Cox regression analysis was used to analyze independent prognostic factors affecting the relapse-free survival （RFS） and overall survival （OS） rates. Clinical effects of the neo-adjuvant anthracycline-based chemotherapeutic regimen and the RFS and OS rates were compared between the patients with TNBC and non-TNBC, and the correlations among the triplenegative phenotype （TNP）, tumor grading and the expressions of P53, Ki-67 and E-cadherins were analyzed. RESULTS TNP, TNM staging, histological grades, clinical response of the neo-adjuvant chemotherapy and pathological complete remission （pCR） rate were the independent prognostic factors affecting the survival rates. Furthermore, 70 （21.5%） of the 326 patients suffered TNBC. Compared with the subjects in non-TNBC group, the patients with TNBC had a significantly higher pCR rate （P = 0.046） and clinical response rate （P = 0.037）, but also decreased 5-year RFS （P = 0.001） and OS （P = 0.004） rates. The RFS and OS rates were not improved in the TNBC patients who achieved a clinical remission after the neo-adjuvant chemotherapy. The triple-negative phenotype was positively correlated with the level of P53, Ki-67 expression （P = 0.007, P = 0.028）, but negatively correlated with level of E-cadherin （P = 0.034）. CONCLUSION Both clinical remission rate and pCR rate of the TNBC patients receiving neo-adjuvant anthracycline-based chemotherapy are high, however, the long-term effect is poor. The mechanism may relate to a strong potential of proliferation and invasive metastasis, as well as lack of an effective therapeutic target in the TNBC patients.     

Changes in Ki-67 in Residual Tumor and Outcome of Primary Inflammatory Breast Cancer Treated With Trimodality Therapy

BackgroundLimited data are available on the prognostic role of Ki-67 changes in residual tumors after neoadjuvant chemotherapy in primary inflammatory breast cancer (IBC) patients treated with trimodality therapy. This study aims to evaluate changes in Ki-67 associated with disease-free survival (DFS) and overall survival (OS) in IBC patients without pathological complete response.Patients and MethodsWe identified a cohort of primary IBC patients with matched pre- and posttreatment samples treated with anthracycline and taxane-based regimen. All patients had a pathological evaluation, including ER, PR, HER2 status, and Ki-67 expression performed both at diagnostic core biopsy and at final surgery. Kaplan–Meier and Cox proportional hazards methods were used to assess DFS and OS rates and their relationship with clinicopathological features.ResultsTwo hundred and ten patients with stage III IBC were included. Sixty-three percent of residual tumors showed a decrease in Ki-67 positivity by at least 1%. The decrease of Ki-67 significantly correlated with better DFS (p = .001) and OS (P = .010) compared with no decrease, particularly in the luminal B-like and HER2-positive subgroups. The multivariate analysis showed that the decrease in Ki-67 level had a significant positive predictive value on DFS (HR = 0.47, 95% CI: 0.33-0.67; P< .001) and OS (HR = 0.59, 95% CI: 0.36-0.82; P= .004) in all IBC patients.ConclusionThe decrease of Ki-67 expression after neoadjuvant chemotherapy has a prognostic significance in IBC patients with residual disease. Evaluation of Ki-67 changes may help to identify subgroups of patients with worse outcome to receive novel treatment in this setting.     

乳腺腺样囊性癌与三阴性浸润性导管癌的临床病理特征及预后比较

  目的  比较乳腺腺样囊性癌（adenoid cystic carcinoma of the breast,ACCB）与三阴性浸润性导管癌（invasive ductal carcinoma,IDC）临床病理特征及预后。  方法  分析2004年1月至2020年12月就诊于中国医学科学院肿瘤医院的26例ACCB与216例三阴性IDC患者的临床病理资料。采用Kaplan-Meier法绘制无疾病生存（disease free survival,DFS）和总生存（overall survival,OS）曲线,Log-rank法进行组间比较。  结果  中位随访时间72.4个月,4例ACCB患者出现复发转移,肺和肝是常见的转移部位。与IDC相比,ACCB的发病年龄>60岁、Ki-67低表达、神经侵犯、分期早（Ⅰ期和Ⅱ期）、无淋巴结转移的比例更高（P<0.05）。与IDC相比,ACCB患者的5年DFS率和OS率有获益趋势,但差异无统计学意义。Ki-67低表达ACCB患者的中位DFS显著高于Ki-67高表达者（χ2=4.633,P=0.031）。无神经侵犯的患者较有神经侵犯者的DFS显著改善（χ2=3.861,P=0.049）。  结论  Ki-67高表达和神经侵犯是ACCB复发转移的危险因素。与三阴性IDC相比,ACCB具有Ki-67低表达、神经侵犯、腋窝淋巴结阴性、分期早的临床病理特点和以保乳术为主、不行辅助化疗的治疗方式。