辛二酰苯胺异羟肟酸（SAHA）对乳腺癌细胞增殖影响的动物实验研究

目的探讨组蛋白去乙酰化酶抑制剂SAHA对乳腺癌细胞株增殖周期的影响。方法饲养Balb/c-nu/nu雌性裸鼠,细胞悬液皮下注射法构建人乳腺癌细胞株MCF-7裸鼠移植瘤模型,随机分为6组,经尾静脉注射不同剂量的SAHA,获取血细胞分析、血脂、肝功能、肾功能、裸鼠体重、瘤重等数据,计算肿瘤生长抑制率、移植瘤的体积,进行统计分析。结果不同剂量的SAHA作用于乳腺癌荷瘤裸鼠后,通过比较肿瘤体积及抑瘤率均显示出疗效,在0.10~0.42 mg/kg剂量范围内,SAHA的治疗效应呈现剂量依赖关系;其作用后导致血清胆红素和谷丙转氨酶水平升高,对红细胞、白细胞及血小板计数、尿素氮、肌酐水平影响不明显。结论 SAHA是乳腺癌细胞增殖抑制剂,其抑制效应有一定的量效关系;其对机体副作用较小。     

组蛋白去乙酰化酶抑制剂联合紫杉醇抑制宫颈癌细胞增殖的体外实验

目的：研究组蛋白去乙酰化酶抑制剂SAHA联合紫杉醇对宫颈癌HeLa细胞增殖的抑制效果及其机制。方法：设置空白对照组、紫杉醇（10 nmol/L）、SAHA（10 μmol/L）、紫杉醇（10 nmol/L）+SAHA（10 μmol/L）联合组，采用四甲基噻唑蓝（MTT）法检测各组HeLa细胞的生长抑制率，计算紫杉醇对HeLa细胞的IC₅₀。RT-PCR法检测各组HeLa细胞中抑癌基因p27 mRNA的相对表达，Western blot检测HeLa细胞乙酰化组蛋白H4（Ac-H4）的表达。结果：紫杉醇、SAHA、紫杉醇+SAHA联合组处理HeLa细胞24 h的相对抑制率分别为25.93%±5.32%、46.38%±3.66%、54.27%±4.02%，联合组抑制率与紫杉醇组相比明显升高，差异具有统计学意义（P < 0.01）；48 h的抑制率分别为29.12%±3.09%、65.26%±3.03%、77.02%±3.86%，联合组抑制率最强，显著高于SAHA组和紫杉醇组（P < 0.01）。经SAHA预处理后紫杉醇对HeLa细胞的IC₅₀较单独紫杉醇组均显著下降（P < 0.05或P < 0.01）。紫杉醇组、SAHA组、紫杉醇+SAHA联合组细胞中p27 mRNA的相对表达量分别为5.845±0.548、0.978±0.117和10.601±0.673，乙酰化组蛋白H4（Ac-H4）的相对表达分别为0.878±0.068、1.148±0.018、1.282±0.033，联合组中表达量均显著高于SAHA组和紫杉醇组（P均 < 0.01）。结论：SAHA联合紫杉醇在体外能显著抑制宫颈癌细胞HeLa的增殖，增强组蛋白乙酰化水平，诱导抑癌基因的表达。     

紫杉醇治疗卵巢癌裸鼠移植瘤过程中WT1的表达及意义

研究紫杉醇治疗卵巢癌SKOV3裸鼠移植瘤过程中WT1基因的表达和意义。方法:建立卵巢癌SKOV3裸鼠移植瘤模型,随机进行紫杉醇化疗（紫杉醇组）及生理盐水（对照组）处理,测量移植瘤体积并对移植瘤标本进行苏木精-伊红染色、流式细胞仪检测细胞凋亡及细胞周期改变、免疫组化检测Bcl-2及WT1蛋白表达、RT-PCR检测WT1 mRNA的表达。结果:紫杉醇化疗对裸鼠移植瘤的生长具有明显的抑制作用,与对照组相比,紫杉醇组细胞凋亡率增加（P<0.05）;同时,移植瘤组织中Bcl-2、WT1蛋白及WT1 mRNA的表达均显著下降（P<0.05）。结论:WT1基因在卵巢癌凋亡过程中可能发挥着一定的作用,其作用机制或许与抗凋亡基因Bcl-2有关。      

全反式维甲酸联合辛二酰苯胺异羟肟酸对人乳腺癌细胞MCF-7裸鼠移植瘤的影响

目的 研究全反式维甲酸（all-trans retinoic acid,ATRA）联合辛二酰苯胺异羟肟酸（suberoyl anilide hydroxamic acid,SAHA）对人乳腺癌细胞MCF-7裸鼠移植瘤生长的影响及作用机制。方法 体外培养MCF-7细胞,利用CCK-8方法选取ATRA和SAHA联合的最佳配伍浓度。建立人乳腺癌细胞MCF-7裸鼠移植瘤模型,随机分为对照组（PBS）、ATRA组（0.84 mg/kg ATRA）、SAHA组（0.42 mg/kg SAHA）和ATRA+SAHA组（0.84 mg/kg ATRA+0.42 mg/kg SAHA）,每组5只裸鼠;待各组移植瘤长至100 mm3时,按照分组连续皮下给药2周后,取眼眶静脉血,断颈处死裸鼠后取肿瘤组织,称重并计算抑瘤率及脏器指数;用ELISA法检测裸鼠血清白细胞介素6受体（IL-6R）含量,HE染色观察肿瘤组织形态结构,免疫组化法和Western blot法检测肿瘤组织中肿瘤增殖和转移相关蛋白Caspase-3、MMP-9、MMP-2以及抑癌基因蛋白p53、EGFR的表达水平。结果 CCK-8检测结果表明...     

乳腺癌TE方案耐药株裸鼠移植瘤NE方案化疗疗效的相关性研究

评测TE方案耐药的人乳腺癌肿瘤细胞移植裸鼠后，NE方案的疗效和survivin、BCRP及Her-2基因表达的关系。方法:培养对TE方案化疗无效的人乳腺癌组织原代细胞，接种于裸鼠腋下，随机分为3组，分别为生理盐水组、NE方案低剂量组及标准剂量组，处理前后分别测量裸鼠移植瘤的体积。采用RT-PCR法及Western-blot法分别检测化疗后移植瘤中survivin、BCRP及Her-2基因和蛋白的表达变化情况。结果:标准剂量组鼠移植瘤的生长抑制最为明显，肿瘤生长抑制率为74.5%，与对照组相比，NE组中survivin、BCRP及Her-2的基因和蛋白表达均显著下降（P<0.05）。结论:NE方案化疗对TE方案耐药的乳腺癌细胞均有较好抑制作用，可能与survivin、BCRP及Her-2基因的表达下调有关。      

羧胺三唑与SAHA联合用药抑制Lewis肺癌细胞的体内外研究Δ

目的：研究羧胺三唑（CAI）与组蛋白去乙酰化酶抑制剂辛二酰苯胺异羟肟酸（SAHA）联合用药对Lewis肺癌细胞的抑制作用,对比联合用药与单药使用的药效差异。方法采用SRB法检测体外培养的Lewis肺癌细胞系在单独使用CAI或SAHA以及联合用药时的细胞活力变化;建立C57小鼠Lewis肺癌细胞皮下移植瘤模型,随机分为4组：溶剂对照组、CAI组、SAHA组、CAI+SAHA联合治疗组,连续给药25天,观察各组小鼠体质量变化、肿瘤体积、肿瘤抑制率及动物死亡情况。结果 CAI分别和两种剂量的SAHA联合用药后,对Lewis肺癌细胞活力的抑制作用高于CAI组,细胞活力的抑制率分别达到46.09%±5.50%和54.43%±3.69%,差异均有统计学意义（P﹤0.01）。动物实验显示,与对照组相比,CAI组、SAHA组以及联合治疗组均抑制小鼠皮下肿瘤生长,且联合治疗组的肿瘤体积小于其他3组;除对照组外,各药物治疗组动物死亡率均低于20%。结论 SAHA与CAI联合使用能显著抑制Lewis肺癌细胞活力,并在Lewis肺癌细胞荷瘤动物中显现抗瘤增效作用。     

MAP2K6-FP和紫杉醇对上皮性卵巢癌裸鼠移植瘤的抑制作用

目的:研究靶向融合肽MAP2K6-FP（mitogen-activated protein kinase kinase 6-fusion protein)、紫杉醇单独和两者联合对上皮性卵巢癌裸鼠移植瘤的抑制作用。方法:建立卵巢癌HO8910细胞的裸鼠皮下移植瘤模型,分为空白对照组（予生理盐水 5 ml/kg腹腔注射治疗）、MAP2K6-FP组（予0.25 mg/kg MAP2K6-FP腹腔注射治疗）、紫杉醇组（予15 mg/kg 紫杉醇腹腔注射治疗）、联合用药组（予0.25 mg/kg MAP2K6-FP+15 mg/kg 紫杉醇腹腔注射治疗）,比较4组裸鼠的移植瘤生长速度、体积、裸鼠体质量;TUNEL法、免疫组织化学法和蛋白印迹法分别检测移植瘤中细胞凋亡情况、血管内皮生长因子（vascular endothelial growth factor,VEGF）、增殖细胞核抗原（proliferating cell nuclear antigen,PCNA）的表达以及Bcl-2、Beclin 1蛋白的表达。结果:联合用药组裸鼠移植瘤体积（90 mm3）,小于MAP2K6-FP组（324 mm3）、紫杉醇组（215 mm3）和空白对照组（804 mm3）（P<0.05）。联合用药组肿瘤细胞的凋亡指数（apoptosis index,AI）(28.88±2.03)%,高于MAP2K6-FP组(14.36±0.56)%、紫杉醇组(15.78±0.87)%以及空白对照组(4.78±0.87)%（P<0.05）。联合用药组VEGF蛋白表达水平(0.14±0.06),低于MAP2K6-FP组(0.32±0.10)、紫杉醇组(0.29±0.08)及空白对照组(0.78±0.14）（P<0.01);联合用药组PCNA表达水平(18.4%),低于MAP2K6-FP组(32.3%)、紫杉醇组(29.8%)及空白对照组(81.4%）（P<0.05）。联合用药组Beclin 1/Bcl-2比例较单一用药组高(P<0.05)。结论:MAP2K6-FP联合紫杉醇能够显著抑制卵巢癌裸鼠移植瘤的生长,其机制可能与促进细胞凋亡有关。     

加味乌梅丸改善荷胰腺癌小鼠恶病质状态的实验研究

目的:研究加味乌梅丸对改善人胰腺癌小鼠恶病质状态的作用,并探讨其机制。方法:建立裸鼠人胰腺癌细胞株SW1990皮下移植瘤模型,将40只裸鼠按体重随机分为4组,A组（模型组）、B组（中药组）、C组（化疗组）、D组（中药+化疗组）,观察裸鼠的饮食、体质量变化情况,21天后测量各组裸鼠的体质量,并摘眼球取血,ELISA试剂盒检测血清中肿瘤坏死因子-α（TNF-α）的量。结果:所有荷瘤鼠均出现饮食量及体质量的下降,其中以模型组和化疗组的体质量下降尤为明显,中药组的终末体质量及治疗前后体质量差与模型组相比,差异均有统计学意义（P均<0.05）;中药+化疗组的终末体质量及治疗前后体质量差,与模型组、化疗组相比,差异亦均有统计学意义（P均<0.05）。模型组与其他三组相比,去瘤体质量下降最明显,差异均有统计学意义（P均<0.05）;其中中药+化疗组与化疗组相比,差异有统计学意义（P<0.05）。与模型组相比,中药组、化疗组和中药+化疗组的血清肿瘤坏死因子-α（TNF-α）的量均降低,差异均有统计学意义（P均<0.05）;其中中药+化疗组与中药组和化疗组相比,差异均有统计学意义（P均<0.05）。结论:加味乌梅丸可改善荷瘤鼠的恶病质状态,其机制可能与其降低小鼠血清中肿瘤坏死因子-α（TNF-α）的水平有关。     

131I-EGF显像对肺癌荷瘤裸鼠化疗疗效的评价

目的探讨131I-EGF动态显像技术对肺癌倚瘤裸鼠化疗疗效的评价。方法将肺癌细胞株A549种植到BALB／cA—nil裸鼠体内,待移植瘤长至直径0．8～1．2cm时,随机分为4组：空白对照组、实验组（紫杉醇组、顺铂组和联合化疗组）。空白对照组腹腔注射0．1ml生理盐水;紫杉醇组腹腔注射紫杉醇5mg／kg;顺铂组腹腔注射ill@34rag／kg;联合化疗组腹腔注射紫杉醇5mg／kg和顺铂4mg／kg。裸鼠化疗后分别丁即刻和第7、14、21及28犬注射131I-EGF0．5h后开始显像,勾画感兴趣区（ROI）,计算肿瘤／健侧对应部位放射性（T／NT）比值,并测量肿瘤体积。第28天完成显像后,处死裸鼠,测量肿瘤／血液及肿瘤／肌肉放射性比值,计算抑瘤率和131I-EGF的生物学分布。结果肿瘤组织吸收131I-EGF较多,肿瘤／肌肉放射性比值对照组为5．65,高于联合化疗组（1．55,t=9．829,P〈0．01）、紫杉醇组（1．14,t=12．636,P〈0．01）和顺铂组（0．99,t=12．313,P〈0．01）。肿瘤／血液放射性比值对照组为3．15,高于联合化疗组（0．76,t=3．384,P〈0．05）、紫杉醇组（1．22,t=2．826,P〈0．05）和顺铂组（1．22,t=2．713,P〈0．05）。131I-EGF可使肿瘤组织清晰显像,联合化疗组肿瘤体积401．9mm3,与对照组（1134．2mm3）差异有统计学意义（t=9．393,P〈0．01）;紫杉醇组肿瘤体积634．73mm3（t=7．140,P〈0．01）,顺铂组肿瘤体积700．7mm3（t=6．820,P〈O．01）,这2组与对照组差异有统计学意义。各化疗组与对照组间T／NT比值差异有统计学意义（F=1011．251,P〈0．01）。结论化疗效果好的肿瘤,131I-EGF显像示肿瘤体积较小,瘤体内放射性分布较少;而化疗效果差的肿瘤体积逐渐增大,瘤体内放射性分布较多。131I-EGF显像可用于指导倚瘤裸鼠的化疗。     

密集化疗与常规化疗对裸鼠人乳腺癌移植瘤抗瘤活性的对比研究

目的：观察人乳腺癌裸鼠模型剂量密集化疗和常规化疗疗效差异。方法：用乳腺癌MCF-7细胞株建立人乳腺癌裸鼠模型,分组分别进行剂量密集化疗和常规化疗,观察裸鼠模型的一般情况、体质量、外周血白细胞和瘤体积的变化,计算肿瘤的抑瘤率。结果：密集组与常规组瘤体积均比对照组缩小,密集组缩小较常规组更明显,P=0．003。密集组与常规组化疗前后体质量无明显变化。密集组与常规组化疗后外周血白细胞较化疗前明显下降,但两者差异无统计学意义,P=0．940。结论：在乳腺癌裸鼠模型中,剂量密集化疗效果优于常规化疗,且耐受较好。     

不同化疗方案对MCF-7乳腺癌荷瘤裸鼠的抑瘤作用及对PCNA表达的影响

Objective: To investigate the antitumor activity of different combination regimens to human breast cancer xenograft (MCF-7) transplanted in nude mice and the effects on the expression of PCNA, and to evaluate the value of PCNA as predictive factor for the response of chemotherapy and individualized treatment. Methods: (1) 88 nude mice models of human breast cancer xenograft (MCF-7) were established, and then were randomly divided into control group and 10 chemotherapy groups (each group, n = 8). Among them, the mice of 5 chemotherapy groups were treated intraperitoneally/orally by 5 combination chemotherapy regimens (CMF, CAF, NP, TP, Xeloda) respectively at 1/3 LD10 dosage schedule (dose lethal to 10%of the mice), and that in another 5 chemotherapy groups were treated at 2/3 LD10 dosage schedule. Control animals were administered intraperitoneally with normal saline. (2) The body weight of nude mice and transplanted tumor growth were observed and recorded, then inhibition rate of tumor growth was calculated. (3) The pathological features of transplanted tumor were studied under microscope. The expression of proliferating cell nuclear antigen (PCNA) was comparatively studied in chemotherapy group and control group by SP immunohistochemical method and flow cytometry analysis. Results: (1) Body weight, tumor weight and inhibition rate of tumor growth of athymic mice bearing cancer: Body weights and tumor weights of nude mice in every 2/3 LD10 chemotherapy group were significantly lower than those of the control group (P ＜ 0.05), and the inhibition rates of tumor growth were 83.1%, 75.5%, 84.6%, 87.9% and 91.0%, respectively. Body weights of athymic mice in every 1/3 LD10 chemotherapy group were lower than that of the control (P ＜ 0.05). The results showed that the 2/3 LD10chemotherapy groups could reflect the effect of combination chemotherapy on the nude mice and the clinical dependability was better. So the data of 2/3 LD10 chemotherapy groups were appropriated for successive study. (2) Immunohistochemical studies: The expressions of PCNA in every chemotherapy group were significantly lower than that of the control (P ＜ 0.05).Moreover, the expression of PCNA in NP group was significantly lower than those of CMF, CAF, TP and Xeloda groups (P ＜0.05), while the expressions of TP and Xeloda groups were significantly lower than those of CMF and CAF groups (P ＜ 0.05).(3) FCM analysis: FI values of PCNA in every chemotherapy group were significantly lower than that of the control (P ＜ 0.05).FI values of PCNA in TP and Xeloda groups were significantly lower than those of CMF and CAF groups (P ＜ 0.05), while the value of NP group was significantly lower than that of CMF group (P ＜ 0.05). (4) Relationship between PCNA expression and pathologic response: The expression of PCNA was significantly correlated with pathological therapeutic response of transplanted breast carcinoma (P = 0.001). Conclusion: In vivo chemosensitivity testing with 2/3 LD10 dosage combinations in nude mice bearing cancer can reflect the effects of chemotherapeutics and affects of organism exactly. Various chemotherapy regimens all can decrease the expression of PCNA in breast cancer. The PCNA can be regarded as the factor to judge the response to chemotherapy, and it become possibly one of the prospective factors in the selection of chemotherapy regimen and play a rule in individualized therapy in the clinic.     

The histone deacetylase inhibitor suberoylanilide hydroxamic acid induces growth inhibition and enhances taxol-induced cell death in breast cancer

Purpose

The histone deacetylase inhibitor (HDACi) suberoylanilide hydroxamic acid (SAHA) enhances taxol-induced antitumor effects against some human cancer cells. The aim of this study is to investigate whether SAHA can enhance taxol-induced cell death against human breast cancer cells and to illustrate the mechanism in detail.

Methods

A panel of eight human breast cancer cell lines and an immortalized human breast epithelial cell line were used to determine the inhibitory effects of SAHA, taxol, or their combination by MTT assay. The effects of SAHA with or without taxol on cell cycle distributions, apoptosis, and protein expressions were also examined. The inhibitory effects on tumor growth were characterized in vivo in BALB/c nude mice bearing a breast cancer xenograft model.

Results

Taxol-resistant and multi-resistant breast cancer cells were as sensitive to SAHA as taxol-sensitive breast cancer cells. A dose-dependent synergistic growth inhibition was found in all the tested breast cancer cell lines treated with the SAHA/taxol combinations. The synergetic effect was also observed in the in vivo xenograft tumor model. The cell cycle analysis and apoptosis assay showed that the synergistic effects resulted from enhanced G2/M arrest and apoptosis.

Conclusions

SAHA increased the anti-tumor effects of taxol in breast cancer in vitro and in vivo. The combination of SAHA and taxol may have therapeutic potential in the treatment of breast cancer.     

Treatment with paclitaxel alone rather than combination with paclitaxel and cisplatin may be selective for cisplatin-resistant ovarian carcinoma

BACKGROUND: We have previously reported that paclitaxel (taxol) results in cisplatin sensitization to human ovarian cancer cells with cisplatin resistance in vitro. This study was designed to determine effects of taxol and its combination with cisplatin on growth of cisplatin-sensitive cell line (KF28) and the cisplatin-resistant counterpart (KFr13) in nude mice. METHODS: From 14 days after tumor inoculation treatment was initiated. Taxol (3 mg/kg) and cisplatin (2 mg/kg) were administered i.p. once a week for 5 weeks. RESULTS: In nude mice bearing cisplatin-sensitive cells (KF28), taxol followed by cisplatin and cisplatin plus taxol inhibited significantly (P < 0.05) the tumor growth rate compared with that in nude mice treated with cisplatin alone or taxol alone and cisplatin followed by taxol. On the other hand, in nude mice bearing cisplatin-resistant KFr13 cells, treatment with taxol alone inhibited completely the tumor growth rate, whereas no schedule-dependent interaction of taxol with cisplatin was observed. CONCLUSION: These results suggest that treatment with taxol alone may be superior to combination of taxol with cisplatin in patients with cisplatin-resistant ovarian carcinoma.     

lncRNA SNHG14在甲状腺乳头状癌组织中的表达及对其癌细胞增殖、迁移和侵袭的影响

目的:观察长链非编码RNA（long non-coding RNA,lncRNA）核内小RNA宿主基因14（small nucleolar RNA host gene 14,SNHG14）在甲状腺乳头状癌（papillary thyroid carcinoma,PTC）组织中的表达情况及对PTC细胞增殖、侵袭和迁移的影响。方法:选取2019年10月至2020年01月期间于我院甲状腺外科行手术切除的37例患者的PTC组织及配对癌旁组织,采用实时荧光定量逆转录聚合酶链反应（quantitative real-time polymerase chain reaction,qRT-PCR）检测SNHG14在PTC组织和癌旁组织中的表达,并分析其与临床病理特征的相关性,同时检测SNHG14在PTC细胞TPC-1及人正常甲状腺滤泡上皮细胞Nthy-ori3-1中的表达。采用si-RNA技术下调PTC细胞TPC-1中SNHG14的表达,通过细胞计数试剂盒-8(cell counting kit-8,CCK-8)、细胞划痕实验和Transwell实验研究SNHG14在TPC-1细胞中的生物学功能。结果:SNHG14在PTC组织中的表达高于癌旁组织（P＜0.05）,并与淋巴结转移、病灶数有关（P均<0.05）,而与年龄、性别、肿瘤大小、TNM分期无关（P均>0.05）,同时,SNHG14在TPC-1细胞中的表达高于Nthy-ori3-1细胞（P＜0.05）。下调SNHG14后,相较于空白对照组、阴性对照组,si-SNHG14组细胞的增殖、迁移和侵袭能力均降低（P均<0.05）。结论:SNHG14可能参与PTC的发生发展,有望成为PTC患者新的诊断标记物及治疗靶点。     

吡柔比星联合紫杉醇新辅助化疗治疗局部晚期乳腺癌

目的观察吡柔比星(THP)联合紫杉醇治疗局部晚期乳腺癌的近期疗效及毒副反应.方法 20例局部晚期乳腺癌患者(治疗组)接受THP 50 mg/m2静注,第1天;紫杉醇135 mg/m2,第1、8天静脉点滴.20例患者接受环磷酰胺/阿霉素/5-氟尿嘧啶(CAF)化疗(对照组),5-Fu 500 mg/m2,静脉点滴,第2、9天;ADM 40 mg/m2,静注,第1天;CTX 500 mg/m2,静注,第1、8天.21 d为1周期,连用2周期.结果治疗组有效率80.0%,对照组有效率45.0%,两组差异有显著性(P＜0.05).治疗组心脏毒性显著低于对照组,两组骨髓抑制发生率差异无显著性.结论 THP联合紫杉醇治疗局部晚期乳腺癌疗效较高,不良反应可耐受.     

槲皮素对人乳腺癌裸鼠移植瘤p21WAF1/CIP1的影响

目的　研究槲皮素对人乳腺癌细胞株 MCF-7裸鼠移植瘤 p2 1W AF1/CIP1的影响。方法　采用 MCF-7细胞株移植成功的 2 4只裸鼠分为对照组、槲皮素组、阿霉素组及联合用药组 (槲皮素 +阿霉素 ) ,每组 6只。用原位杂交及免疫组化测定 p2 1W AF1/CIP1基因及蛋白的表达水平。结果　 p2 1W AF1/CIP1m RNA表达水平槲皮素组及联合用药组高于对照组 (P<0 .0 5) ,p2 1W AF1/CIP1蛋白表达水平槲皮素组及联合用药组明显高于对照组 (P<0 .0 1)。结论　槲皮素可上调 MCF-7裸鼠移植瘤细胞的 p2 1W AF1/CIP1基因及蛋白的表达水平 ,减缓肿瘤生长     

含紫杉醇类和卡铂的不同方案治疗卵巢癌临床分析

目的:观察紫杉醇联合卡铂经静脉、腹腔联合治疗卵巢癌的疗效及毒副作用。方法:27例卵巢上皮癌患者分为4组:A1组,泰素、卡铂静脉推注(5例);A2组,泰素静脉推注、卡铂腹腔滴注(7例);B1组,紫杉醇、卡铂静脉推注(6例);B2组紫杉醇静脉推注、卡铂腹腔化疗(9例)。观察每次化疗后的毒副作用,完成4个疗程后观察疗效。结果:27例中25例完成4个疗程,2例出现过敏性休克而中止化疗。总有效率A1组60%(3/5);A2组71.4%(5/7);B1组50%(3/6);B2组66.7%(6/9)。毒副反应比较,泰素组与紫杉醇组间及腹腔静脉联合化疗组与静脉化疗组间差异均有显著性(P<0.05)。结论:紫杉醇类与卡铂联合化疗对卵巢癌有一定疗效,腹腔静脉联合化疗毒副作用低于单纯静脉化疗,泰素组心脏毒性低于紫杉醇组。     

阿霉素联合他莫昔芬对人子宫内膜癌裸鼠移植瘤的抑制作用

目的：分别研究阿霉素、他莫昔芬及两者联合用药对人子宫内膜癌裸鼠移植瘤的生长抑制作用及相应机制;方法：建立裸鼠活体二次移植肿瘤的动物模型,并随机分为4组,每组5只.分别为阿霉素用药组、他莫昔芬用药组、阿霉素他莫昔芬联合用药组及对照组;用药处理裸鼠移植瘤模型3周.对照组予以注射生理盐水3周.计算各组移植瘤体积、抑瘤率及裸鼠体重情况,肿瘤组织标本进行免疫组化检测Ki67蛋白的表达,并用TUNEL法检测细胞凋亡情况.结果：联合用药组与单独用药组及对照组的瘤体积比较差异均有统计学意义（P＜0.05）;用药前各组裸鼠体重差异无统计学意义（P＞0.05）,用药后对照组与单独用药组及联合用药组的体重比较差异均有统计学意义（P＜0.05）;联合用药组与单独用药组及对照组的抑瘤率比较差异均有统计学意义（P＜0.05）;用药组的Ki67表达阳性率明显低于对照组,联合用药组Ki67表达最低;TUNEL法检测联合用药组肿瘤细胞凋亡率为（32.33 ±3.68）％,明显高于阿霉素组（17.40±2.58）％、他莫昔芬（15.40±6.05）％和对照组（3.50±1.50）％,差异有统计学意义（P＜0.05）.结论：阿霉素、他莫昔芬均可抑制人子宫内膜癌裸鼠移植瘤的生长,两者联合应用较两药单独应用对人子宫内膜癌裸鼠移植瘤的抑制作用更为显著.