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目的:探讨抗细胞毒性 T 淋巴细胞相关抗原(CTLA-4)抗体联合阿霉素治疗小鼠乳腺癌的疗效及机制。方法以小鼠乳腺癌细胞系4T-1接种 Balb/c 小鼠建立模型,随机分为空白组、溶剂组、单用抗 CTLA-4抗体组、单用阿霉素组、联合用药组。观察各组小鼠肿瘤生长,脾和骨髓的细胞亚型,对肿瘤微环境中凋亡细胞和微血管密度(MVD)进行检测。结果单用抗CTLA-4抗体组、单用阿霉素组、联合用药组小鼠肿瘤体积均显著低于空白组、溶剂组(P <0.05),且联合用药组小鼠肿瘤体积和质量显著低于单用抗 CTLA-4抗体组、单用阿霉素组小鼠肿瘤体积(P <0.05)。与空白组、溶剂组相比,单用抗 CTLA-4抗体组、单用阿霉素组和联合用药组的荷瘤小鼠脾中 CD8+ T 和 CD4+ T 细胞占淋巴细胞的百分比显著增高(P <0.05)。联合用药组肿瘤细胞凋亡的阳性百分率显著高于其他组(P <0.05)。联合用药组 MVD 显著低于其他组,且单用抗 CTLA-4抗体组和单用阿霉素组 MVD 显著低于空白组和溶剂组(P <0.05)。结论联合抗 CTLA-4抗体和阿霉素可在一定程度提高小鼠机体免疫力,明显抑制乳腺癌小鼠肿瘤生长,促进肿瘤微环境中肿瘤细胞凋亡,减少肿瘤微环境中微血管生成,效果优于单一用药。 相似文献
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目的探析生脉注射液对乳腺癌表柔比星多程化疗心脏毒性的作用。方法选取2015年1月至2019年8月在我院接受化疗的60例乳腺癌患者,将其随机分为对照组(n=30)与观察组(n=30)。对照组患者给予AC方案(表柔比星+多西他赛)化疗,观察组患者在对照组基础上给予生脉注射液。比较两组患者临床疗效、心电图异常率、心肌酶谱指标及不良反应发生情况。结果对照组临床总缓解率为33.33%,观察组为53.33%,两组临床总缓解率比较,差异无统计学意义(P>0.05)。对照组心电图异常率为30.00%,观察组为16.67%,两组心电图异常率比较,差异无统计学意义(P>0.05)。治疗后,对照组CK、CKMB、cTnT水平显著升高,观察组cTnT水平显著升高,且观察组CK、CKMB、cTnT水平显著低于对照组(P<0.05)。观察组不良反应总发生率为16.67%,显著低于对照组的46.67%(P<0.05)。结论在乳腺癌表柔比星多程化疗中应用生脉注射液,能够显著减轻心脏毒性,且不良反应发生率较低,值得临床进一步应用与借鉴。 相似文献
4.
R. Roberts A. Borley L. Hanna G. Dolan S. Ganesh E.M. Williams 《Clinical oncology (Royal College of Radiologists (Great Britain))》2021,33(4):230-240
AimsAnthracycline chemotherapy administered via a peripheral cannula results in severe anthracycline chemotherapy-induced phlebitis (ACIP) in about 20–30% of patients. Administering chemotherapy via a central venous catheter (CVC) prevents ACIP. However, CVCs are associated with an increased risk of thrombosis and sepsis. Our aim was to identify risk factors associated with severe ACIP and to provide evidence about the individual risk of developing symptoms.Materials and methodsA prospective observational study of 263 women with breast cancer receiving peripheral administration of anthracycline chemotherapy at a UK cancer centre was conducted between May 2016 and January 2018. Data were collected at baseline and every 3 weeks following each chemotherapy treatment, using both healthcare professional- and participant-reported symptom assessments.ResultsAfter three cycles of chemotherapy, 27% of participants experienced severe ACIP. Factors associated with symptom severity were identified as: arm used for chemotherapy administration, epirubicin dose, age, pre-existing hypertension, comorbidity, ethnic group and pain during chemotherapy administration. The sequence of arm used for chemotherapy administration was the single most significant factor (P < 0.001). When alternating arms were used no other risk factor was influential. Where alternating arms were not used, younger age and higher dose were associated with higher-grade symptoms, with age being more influential than dose. The cumulative effect of increasing symptom severity with repeated cycles was also identified (P < 0.001).ConclusionIt is recommended that a CVC is not routinely required for women with breast cancer who have not undergone an axillary node clearance and receive chemotherapy in alternate arms. The need for a CVC for women who are planned to receive all anthracycline chemotherapy cycles in the same arm should be assessed in the light of peripheral venous access assessment and the key risk factors of age, dose and number of cycles. 相似文献
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Shiguang Chen Wenchang Yu Kongzhi Zhang Weifu Liu Chuanben Chen 《Hepatology research》2021,51(4):482-489
6.
目的观察表柔比星和环磷酰胺联合紫杉醇周疗在三阴性乳腺癌(triple-negative breast cancer,TNBC)新辅助化疗中的疗效和安全性。方法2010-01-01-2012-10-31河南省肿瘤医院经空芯针活检结合免疫组化检查诊断为TNBC患者67例,术前接受紫杉醇80mg/m2(静脉滴入,d1、d8和d15)、表柔比星75mg/m2(静脉滴入,d1)和环磷酰胺600mg/m2(静脉推注,d1)化疗,21d为1个周期,共4个周期。根据RECIST实体瘤疗效评价标准及术后病理组织学检查评价疗效,按照WHO抗癌药物不良反应分度标准评价不良反应。结果总有效率为91.0%,临床完全缓解(cCR)43.3%(29/67),部分缓解(PR)47.7%(32/67),疾病稳定(SD)9.0%(6/67),无疾病进展(PD)病例;病理完全缓解(pCR)率为41.8%(28/67)。Ⅲ~Ⅳ度中性粒细胞减少发生率为28.4%(19/67),2例(3.0%)出现中性粒细胞减少性发热。Ⅲ~Ⅳ度贫血、血小板减少、恶心呕吐、腹泻及口腔黏膜炎的发生率分别为14.9%(10/67)、3.0%(2/67)、7.5%(5/67)、4.5%(3/67)和4.5%(3/67)。治疗期间未发生严重心脏毒性病例。3年无病生存率和总生存率分别为73.6%和88.9%。结论表柔比星和环磷酰胺联合紫杉醇周疗用于TNBC的新辅助化疗,近期疗效较好,不良反应可耐受。 相似文献
7.
BackgroundBecause primary squamous cell carcinoma (SCC) of the breast is a rare disease, the standard therapy has not been established. We examined the clinical outcomes of postoperative adjuvant radiotherapy for breast SCC.Material and methodsWe conducted a multicenter retrospective cohort study. Patients diagnosed with primary breast SCC who received adjuvant radiotherapy as part of their primary definitive treatment were included. Overall survival (OS), breast cancer-specific survival (BCSS), and recurrence-free interval (RFi) were evaluated.ResultsBetween January 2002 and December 2017, 25 breast SCC patients received adjuvant radiotherapy as a primary treatment were included. Median follow-up time was 43.5 months. Three (12%), fifteen (60%) and seven (28%) patients had clinical stage I, II and III disease, respectively. Fourteen patients underwent breast-conserving surgery and subsequent adjuvant radiotherapy. Eleven patients underwent mastectomy and post-mastectomy radiotherapy. Ten patients received regional lymph node irradiation. Nine (36%) patients had disease recurrence. The first site of recurrence was locoregional in five, but distant metastasis arose in one. Concurrent local and distant metastasis were seen in two. Six cases of local recurrence occurred within the irradiated site. Seven patients died, and six of the deaths were due to breast cancer. Five-year OS, BCSS, and Rfi were 69%, 70%, and 63%, respectively. In multivariate analysis, age and lymphatic invasion were associated with increased risk of recurrence.ConclusionBreast SCC has a high incidence of locoregional recurrence and poor prognosis. Age and lymphatic invasion are significant risk factors for recurrence. 相似文献
8.
多西他赛和表柔比星联合用于乳腺癌化疗的用药顺序对疗效的影响 总被引:2,自引:2,他引:0
目的 探讨在乳腺癌新辅助治疗中多西他赛和表柔比星联用时的用药顺序对化疗效果的影响。方法 回顾性分析2010—2014年我院先使用表柔比星再使用多西他赛(对照组,34例)及先使用多西他赛后使用表柔比星(观察组,58例)的乳腺癌病历,评价行3个疗程后的近期疗效。结果 对照组近期有效率61.76%,生存获益85.29%;观察组近期有效率74.13%,生存获益91.37%。结论 临床在乳腺癌的新辅助治疗过程中,宜采用先使用紫杉烷类药物后使用蒽环类药物的给药次序。 相似文献
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目的 探讨紫杉醇或白蛋白结合型紫杉醇联合表柔比星治疗晚期乳腺癌的临床疗效及不良反应.方法 选取62例晚期乳腺癌患者,按照随机对照双盲的原则将其分为治疗组和对照组各31例,其中治疗组采用白蛋白结合型紫杉醇(260 mg/m2)联合表柔比星(75 mg/m2)治疗,对照组采用紫杉醇(175 mg/m2)联合表柔比星(75mg/m2)治疗.治疗2个周期后,观察比较两组患者的临床疗效及不良反应发生情况.结果 治疗组的治疗总有效率93.5%(29/31)高于对照组的71.0%(22/31),差异具有统计学意义(x2=5.420,P=0.020).两组不良反应发生率比较差异无统计学意义(P>0.05).结论 与紫杉醇联合多柔比星比较,白蛋白结合型紫杉醇联合表柔比星治疗晚期乳腺癌疗效好且不良反应可耐受. 相似文献
10.
目的 建立乳腺癌细胞原位移植瘤模型,观察紫杉醇及联合表柔比星的抑瘤效果,为临床联合用药提供实验依据。方法 用乳腺癌细胞悬液接种于动物脂肪垫下建立荷瘤鼠,待瘤块直径≥1 cm时,处死动物剥离肿瘤,接种于裸小鼠脂肪垫下,建立原位移植的乳腺癌肿瘤模型。成模动物按瘤体积大小随机分为紫杉醇组、表柔比星组、联合用药组及模型对照组4组,连续给药3周后,观察各组小鼠的肿瘤生长情况,抑瘤率及肿瘤组织中P53蛋白的表达情况。结果 成功建立原位移植的乳腺癌肿瘤模型,成模小鼠给药3周后,与模型对照组相比,各给药组小鼠体重和瘤重均有显著下降(P<0.05),其中,紫杉醇组抑瘤效果显著;给药后第8天,紫杉醇组小鼠肿瘤体积与模型对照组比较有显著性差异(P<0.05),给药后第21天,紫杉醇组的抑瘤率达到82.53%;肿瘤组织中P53蛋白的表达情况,与模型对照组相比,紫杉醇组和联合给药组表达显著减弱(P<0.05)。结论 成功构建原位乳腺癌模型,实验结果显示紫杉醇及其与表柔比星的联合用药对肿瘤均有一定抑制作用。 相似文献