三阴性乳腺癌应用TAC 方案术前化疗的临床疗效观察

目的：探讨多西他赛、吡柔比星联合环磷酰胺（TAC）方案术前化疗治疗三阴性乳腺癌（TNBC）的近期疗效和毒副反应。方法77例 TNBC 患者均至少采用 TAC 方案新辅助化疗4周期,每周期化疗前行疗效评估及毒副反应分析,第4周期化疗结束后总体评价近期疗效和毒副反应。结果全组77例 TNBC 患者中,CR 29例（37.66%）,PR 41例（53.25%）,SD 6例（7.79%）,PD 1例（1.30%）,总有效率为90.91%。治疗后病理结果提示达到 pCR 者35例（45.4%）。化疗毒副反应主要为骨髓抑制、胃肠道反应、脱发,但均可耐受。结论 TAC 方案术前化疗治疗 TNBC 近期疗效好,化疗毒副反应可耐受。     

三阴性乳腺癌新辅助化疗药物研究进展

摘 要：三阴性乳腺癌是一种侵袭性强、复发率高、易发生远处转移、预后较差且具有高度异质性的乳腺癌亚型。新辅助化疗是三阴性乳腺癌系统治疗中的重要手段。蒽环联合紫杉一直是三阴性乳腺癌新辅助化疗的常用化疗方案。近年来多项研究发现,某些细胞毒药物在三阴性特定亚型乳腺癌中表现出较好的治疗敏感性,且具有不错的临床疗效。全文就三阴性乳腺癌新辅助化疗药物研究进展进行综述。     

多西他赛联合卡铂方案在三阴性乳腺癌新辅助化疗中的疗效分析

目的：探讨多西他赛联合卡铂方案在三阴性乳腺癌新辅助化疗中的疗效,为临床治疗提供依据。方法入组三阴性乳腺癌患者34例,给予多西他赛联合卡铂方案的新辅助化疗,统计并分析其疗效及安全性。结果34例患者的有效率为85.3％,最常见的毒副反应为骨髓抑制和消化道反应。结论多西他赛联合卡铂方案在三阴性乳腺癌新辅助化疗中疗效好,且耐受性良好。     

铂类药物用于三阴性乳腺癌的新辅助化疗

三阴性乳腺癌(triple-negative breast cancer,TNBC)作为乳腺癌的一个亚型,其复发率较高而总生存率低。尽管其对于包含蒽环类和紫衫类药物为基础的新辅助化疗方案反应显著,但预后较差。目前尚未发现专门的分子及化疗药物作用靶点。铂类并非是治疗三阴性乳腺癌的常规用药,本文对铂药物用于三阴性乳腺癌新辅助化疗的现状进行综述。     

单细胞测序在三阴性乳腺癌新辅助化疗中的应用研究进展

三阴性乳腺癌是最具侵袭性、恶性程度最高的乳腺癌类型,目前多采用以化疗为主的综合治疗方案,新辅助化疗在其中发挥重要作用,但近半数患者会出现耐药,而具体机制尚不明确.单细胞测序技术能够在单个细胞基础上精准评估肿瘤发生、发展过程中基因组、转录组和表观遗传学信息的改变,为明确诊断肿瘤亚型、了解肿瘤耐药机制、发现治疗新靶点、评估...     

三阴性乳腺癌含铂类新辅助化疗的研究进展

乳腺癌居于我国女性恶性肿瘤的首位,其中三阴性乳腺癌占15%~20%。三阴性乳腺癌由于不表达雌激素受体(estrogen receptor,ER)、孕激素受体(progesterone receptor,PR)和人表皮生长因子受体2(human epidermal growth factor receptor 2,HER2),因此不能获益于内分泌治疗及曲妥珠单抗的靶向治疗。目前主要的治疗方法是化疗,并推荐以蒽环及紫杉类化疗方案为主,但其预后并没有得到很好的改善。含铂类化疗方案可明显提高三阴性乳腺癌患者的PCR,延长患者的无病生存期及总生存期,改善预后。作者对目前三阴性乳腺癌含铂类新辅助化疗方案的研究进展予以综述,希望为临床制定三阴性乳腺癌的新辅助化疗方案提供参考。     

三阴性乳腺癌组织中TOPK的表达及其与新辅助化疗治疗反应和预后的相关性

目的:探讨T-LAK细胞起源的蛋白激酶（TOPK）在三阴性乳腺癌（TNBC）组织中的表达和作用,研究TOPK表达与新辅助化疗（NACT）治疗反应和预后的关系。方法:收集66例采用多西他赛+表柔比星+环磷酰胺（TEC）NACT方案的TNBC患者治疗前后的组织学标本,用免疫组化的方法检测TOPK和Ki-67的表达,采用Miller-Payne（MP）系统评估治疗反应,并对患者的无进展生存期（PFS）进行生存分析。结果:MP分级较低（1-3级）的患者组织中的TOPK阳性率高于MP分级较高（4-5级）的患者,在NACT治疗中TOPK阳性患者的预后不佳。同时发现MP 1-3级患者在NACT后组织中TOPK表达升高,而MP 4-5级患者NACT后组织中TOPK表达降低。NACT治疗后组织中TOPK升高的患者的PFS较TOPK降低者差。接受者操作特性曲线（ROC）结果表明,NACT前后患者组织中TOPK表达变化对预后的评估准确性更高。结论:TNBC组织中TOPK水平高的患者对NACT治疗反应不佳,并且预后较差。TOPK表达水平可能提示TNBC的NACT治疗反应和预后。     

TP与EC-T化疗方案在三阴性乳腺癌新辅助化疗中疗效与BRCA1突变关系

目的:探讨TP与EC-T化疗方案在三阴性乳腺癌新辅助化疗中的疗效,并探索铂类与BRCA1突变关系。方法:选取2016年5月-2020年5月在我院诊断三阴性乳腺癌需新辅助化疗的122例患者,均行BRCA检测,将BRCA1胚系突变患者及未突变患者随机分为两组,一组给予TP（62例）方案新辅助化疗,一组给予EC-T（60例）方案新辅助化疗;按照不同因素分析两组pCR差异。结果:TP组pCR率为56.5%,EC-T组pCR率36.7%,差异有统计学意义（P=0.029）;对于ypT0/is或ypN0 TP组对比EC-T组仍然具有明显优势（分别为64.5% vs 43.3%,P=0.019;69.4% vs 41.7%,P=0.002）;对于BRCA1突变患者,TP组与EC-T组pCR率无统计学差异（50.0% vs 44.4%,P=0.343）,对TP组内BRCA1突变与未突变人群pCR率无统计学差异（50.0% vs 57.7%,P=0.224）,对EC-T组内BRCA1突变与未突变人群pCR率无统计学差异（44.4% vs 35.3%,P=0.248）。122例患者的不良反应以 1-2级较常见。EC-T组和TP组患者1-2级恶心/呕吐的发生率分别为71.7％和38.7％(P=0.000 3),3-4级恶心/呕吐的发生率分别为21.7％和3.2％(P=0.002);TP组和EC-T组患者1-2级血小板减少症的发生率分别为32.3％和8.3％(P=0.001),3-4级血小板减少症的发生率分别为9.7％和0％(P=0.008)。其他3-4级不良反应少见。结论:TP方案对比EC-T方案明显提高三阴性乳腺癌pCR率,BRCA1是否突变未发现影响铂类方案疗效,整体两组不良反应可以耐受,其中TP组血小板减少发生率较高。     

Differential response of triple‐negative breast cancer to a docetaxel and carboplatin‐based neoadjuvant treatment

BACKGROUND:

In this study, the authors evaluated whether a pathologic complete response (pCR) or a clinical complete response (cCR) to neoadjuvant treatment in patients with locally advanced breast cancer differed among the 3 subtypes of breast cancer: triple‐negative breast cancer (TNBC), human epidermal growth factor receptor 2 (HER2)‐positive breast cancer, and hormone receptor‐positive/HER2‐negative breast cancer. Whether a cCR or a pCR was correlated with fewer recurrences and better survival also was investigated.

METHODS:

Patients with stage II/III breast cancer received 4 cycles of neoadjuvant docetaxel and carboplatin (TC) every 3 weeks. Patients with HER2‐positive tumors were randomized to receive either additional weekly trastuzumab preoperatively or TC alone. Postoperatively, all patients received 4 cycles of TC, and all HER2‐positive patients received a total of 52 weeks of trastuzumab. The recurrence‐free survival (RFS) and overall survival (OS) rates at 2 years were reported.

RESULTS:

Seventy‐four patients were enrolled, including 11 patients with TNBC, 30 patients with HER2‐positive tumors, and 33 patients with hormone receptor‐positive/HER2‐negative tumor. The cCR rates were 45.4%, 50% and 40.6% in TNBC, HER2‐positive, and hormone receptor‐positive/HER2‐negative groups, respectively. The pCR rate for the entire group was 26.8%, and patients with TNBC had the best response (54.6%) followed by patients with HER2‐positive tumors (24.1%) and patients with hormone receptor‐positive/HER2‐negative tumors (19.4%; P = .0126). The pCR rate for patients with HER2‐positive tumors improved from 7% to 40% if trastuzumab was added (P = .08). Infiltrating ductal cancer, TNBC, negative estrogen receptor and/or progesterone receptor status, tumor classification predicted a pCR (P ≤ .05). Multivariate analysis using a logistic regression test indicated that tumor type was an independent predictor. The RFS rate for patients who did versus patients who did not achieve a pCR was 93.8% versus 78.4% at 2 years, respectively, and 83.3% versus 58% at 3 years, respectively (P = .1227); whereas, for patients who did versus patients who did not achieve a cCR, the RFS rate was 80.9% versus 83.9%, respectively, at 2 years and 65% versus 64.3%, respectively, at 3 years (P = .999).

CONCLUSIONS:

The current results indicated that the TC combination is promising for the treatment of TNBC. The addition of trastuzumab to TC improved the pCR rate significantly in patients with HER2‐positive breast cancer. Cancer 2010. © 2010 American Cancer Society.     

三阴性乳腺癌新辅助化疗后组织中Ki-67表达变化及其与疗效和预后的相关性

目的:探讨三阴性乳腺癌(triple negative breast cancer,TNBC)新辅助化疗(neoadjuvant chemotherapy,NAC)后组织中Ki-67表达变化及其与疗效和预后的相关性.方法:选取我院2013年01月至2018年01月经病理确诊为TNBC的患者70例,根据免疫组化法检测NA...     

外周血淋巴细胞和单核细胞比值对三阴性乳腺癌新辅助化疗疗效的预测价值

目的:探讨外周血淋巴细胞和单核细胞比值(lymphocyte-to-monocyte ratio,LMR)对三阴性乳腺癌(triple negative breast cancer,TNBC)患者新辅助化疗(neoadjuvant chemotherapy,NAC)疗效的预测价值.方法:收集2017年01月至2019年...     

多西他赛联合卡培他滨在乳腺癌新辅助化疗中的应用

背景与目的：新辅助化疗已成为治疗局部晚期乳腺癌的主要手段之一,随机试验证明新辅助化疗与术后辅助化疗同样有效,并且能提高保乳率。本文旨在观察多西他赛联合卡培他滨在局部晚期乳腺癌新辅化疗应用中的近期疗效及不良反应。方法：52例局部晚期乳腺癌患者,接受多西他赛75mg/m2静脉滴注,第1天;卡培他滨2000mg/m2,分2次口服,第1～14天。21d为1个周期。治疗3～4个周期后评价疗效及不良反应。结果：新辅助化疗临床疗效总有效率（CR＋PR）为80.7%,其中3例（5.8%）为病理完全缓解。主要不良反应是粒细胞减少、脱发和手足综合征等。结论：多西他赛联合卡培他滨治疗局部晚期乳腺癌疗效显著,不良反应可耐受,是局部晚期乳腺癌新辅助化疗的有效方案。     

Multicentric neoadjuvant pilot Phase II study of cetuximab combined with docetaxel in operable triple negative breast cancer

Systemic therapy for triple negative breast cancer (TNBC) is mostly based upon chemotherapy. Epithelial Growth Factor Receptor (EGFR) is overexpressed in around 50% of TNBC and may play a role in its pathogenesis. Consequently, we performed a multicentric pilot Phase II neoadjuvant trial of cetuximab (anti‐EGFR antibody) combined with docetaxel for patients with operable, Stage II–III TNBC. Therapy consisted of weekly cetuximab (first infusion: 400 mg/m², then 250 mg/m²) combined with six cycles of docetaxel (T: 100 mg/m²) q.3 weeks. Subsequently, all patients underwent surgery. The primary endpoint was pathological complete response (pCR) while clinical response, toxicity and ancillary studies were secondary endpoints. Paraffin‐embedded and frozen tumor samples were systematically collected in order to identify predictive biomarkers of efficacy and resistance. From a total of 35 accrued patients, 25 were assessable for pathologic response. The pCR rate was 24% [95% CI: 7.3–40.7]. Complete clinical response rate (cCR) was observed in 22% of cases. Conservative surgery was performed in 75% of patients. Toxicity, mostly cutaneous and hematologic, was manageable. The pre‐therapy ratio between CD8+ and FOXP3+ tumor‐infiltrating lymphocytes equal or higher than 2.75 was predictive of pCR: 43% versus 0%, p = 0.047. Cetuximab in combination with docetaxel displays a modest activity, but acceptable toxicity as neoadjuvant therapy of operable TNBC. Similarly to previous observations using panitumumab, another anti‐EGFR antibody, the immune component of the tumor microenvironment may play an important role in predicting TNBC response to the neoadjuvant therapy.     

Phase II trial combining docetaxel and doxorubicin as neoadjuvant chemotherapy in patients with operable breast cancer.

BACKGROUND: This study was conducted to assess the antitumour activity of docetaxel in combination with doxorubicin for neoadjuvant therapy of patients with breast cancer. PATIENTS AND METHODS: Forty-eight women were treated with intravenous doxorubicin 50 mg/m(2) over 15 min followed by a 1-h infusion of docetaxel 75 mg/m(2) every 3 weeks for six cycles. Dexamethasone or prednisolone premedication was allowed. Granulocyte colony-stimulating factor was not allowed as primary prophylaxis. The primary end point was the pathologically documented complete response rate (pathological response). RESULTS: The mean relative dose intensity calculated for four or more cycles was 0.99 for doxorubicin and 0.99 for docetaxel. Overall, the pathological response rate was 13%. There were 11 complete and 29 partial clinical responses for an overall response rate of 85% [95% confidence interval (CI) 75% to 95%] in the evaluable population (n = 47). Disease-free and overall survival rates were 85% (95% CI 71% to 94%) and 96% (95% CI 85% to 99%), respectively, after a median follow-up of 36.6 months. Grade 3/4 neutropenia was observed in 65% of patients and 17% reported grade 4 febrile neutropenia. CONCLUSIONS: Docetaxel and doxorubicin is an effective and well-tolerated combination in the neoadjuvant therapy of breast cancer. Future controlled trials are warranted to investigate the best schedules and to correlate response with biological factors.     

国产与进口多西紫杉醇应用于乳腺癌新辅助化疗的疗效和安全性比较

目的:比较国产与进口多西紫杉醇应用于乳腺癌新辅助化疗的疗效和安全性。方法:收集2000年1月至2005年12月应用含国产多西紫杉醇(艾素)与进口多西紫杉醇(泰索帝)方案进行新辅助化疗的69例女性乳腺癌患者的临床资料,对近期疗效和不良反应进行回顾性分析。化疗方案为TAC(多西紫杉醇 表阿霉素 环磷酰胺),28天为1个周期,化疗2周期后手术,国产与进口组患者分别为35和34例。结果:所有患者均完成2个周期化疗,两组均无疾病进展病例。其中国产组3例(8.6%)获得完全缓解(CR),26例(74.3%)部分缓解(PR),6例(17.1%)病变稳定(SD);进口组CR4例(11.%),PR25例(73.5%),SD5例(14.7%)。国产与进口组总有效率分别为82.9%和85.3%,两组比较差异无显著性(P>0.05)。两组均无不能耐受不良反应而退出治疗病例。不良反应主要有骨髓抑制、胃肠道反应、脱发、神经毒性和过敏反应等。国产与进口组粒细胞减少发生率均为100%,III度以上发生率分别为38.6%(27/70)、54.4%(38/68),两组相比有显著性差异(P<0.05)。其余不良反应两组相似。结论:国产多西紫杉醇应用于乳腺癌新辅助化疗,疗效确切,不良反应容易处理,与进口多西紫杉醇相似,且价格远低于进口多西紫杉醇,值得推广。