本研究检测黑色素瘤优先表达抗原(PRAME)基因在不同类型急性白血病(acute leukemia,AL)中的表达及其与病情发展的相互关系。用建立的检测PRAME基因的SYBR Green I荧光实时定量逆转录聚合酶链反应(RQ-RT-PCR)方法,对55例急性白血病患者(...本研究检测黑色素瘤优先表达抗原(PRAME)基因在不同类型急性白血病(acute leukemia,AL)中的表达及其与病情发展的相互关系。用建立的检测PRAME基因的SYBR Green I荧光实时定量逆转录聚合酶链反应(RQ-RT-PCR)方法,对55例急性白血病患者(急性髓系白血病43例、急性淋巴细胞性白血病9例、其它类型的白血病3例)的骨髓样本进行PRAME基因表达情况的检测。同时选择7例非恶性血液疾病患者的骨髓样本和8例正常人外周血样本作为阴性对照,并用白血病细胞系K562作为阳性对照。结果表明:35例急性白血病患者中检测出不同水平的PRAME基因表达,在其余20例急性白血病患者及15例对照样本中均未检测出PRAME基因,总阳性率64%,两组之间具有非常显著的差异(p<0.005)。在35例PRAME基因阳性表达的患者中,AML28例,阳性检出率为65%,其中以M3、M4和M2亚型的阳性检出率较高,分别为90%、70%、67%;ALL5例,阳性检出率为56%。在31例融合基因阳性患者中,PRAME基因阳性患者为23例,而在24例融合基因阴性患者中,PRAME基因阳性患者达到12例。比较各种临床因素与PRAME表达水平的相关性未发现明显相关。短期观察5例PRAME基因阳性表达的患者显示出经化疗达到完全缓解(CR)后,患者PRAME基因表达均转阴,下降水平为63-23921/106×GAPDH拷贝。长期观察1例M3患者显示化疗后PRAME基因水平逐渐下降并转阴,患者至今仍处于CR状态。结论:PRAME基因在65%的急性白血病中呈阳性表达,其中以M3、M4和M2亚型最常见,在正常个体和非恶性血液病患者中不表达。不同白血病个体之间PRAME基因表达水平不同,随病情缓解其表达水平降低或转阴。PRAME基因可以成为微小残留病(MRD)检测的一种分子标志。展开更多
目的分析自体外周血造血干细胞支持下高剂量化疗对于晚期乳腺癌化疗前后生活质量影响,为选择有效改善患者生活质量的干预措施提供依据。方法回顾性分析25例病例组行自体外周血造血干细胞支持下高剂量化疗的晚期乳腺癌患者临床资料,同期...目的分析自体外周血造血干细胞支持下高剂量化疗对于晚期乳腺癌化疗前后生活质量影响,为选择有效改善患者生活质量的干预措施提供依据。方法回顾性分析25例病例组行自体外周血造血干细胞支持下高剂量化疗的晚期乳腺癌患者临床资料,同期选取接受常规方案化疗的22例晚期乳腺癌患者为对照组。采用简明健康状况调查量表SF-36(MOS36-item short forum health survey)的缩减版本SF-12量表作为问卷调查表。在第1个时间点(T1)为治疗前,第2个时间点(T2)为第2周期高剂量化疗前和第4周期常规治疗前,第3个时间点(T3)为高剂量化疗结束3月随访时和常规剂量化疗结束后3月进行调查随访。采用t检验进行统计分析。结果高剂量化疗组和常规剂量组患者生活质量8个维度评分T2较T1均显著下降(P<0.05),T3较T1两组患者活力和社会功能维度仍显著下降(P<0.05),其他维度差异无统计学意义。T2时间点高剂量化疗组较常规剂量化疗组总体健康、生理功能、活力和社会功能维度显著下降(P<0.05),T1和T3时间点高剂量化疗组和常规剂量组差异无统计学意义。结论自体外周血造血干细胞支持下高剂量化疗导致乳腺癌患者总体健康、生理功能、活力和社会功能显著下降,但患者高剂量化疗缩短了治疗时间,使患者可更快的恢复正常生活。展开更多
Objective： Anthracycline and taxane are the standard agents in combined chemotherapy of advanced breast cancer. However, when these agents based chemotherapy is failure, the selection of salvage regimen is still of p...Objective： Anthracycline and taxane are the standard agents in combined chemotherapy of advanced breast cancer. However, when these agents based chemotherapy is failure, the selection of salvage regimen is still of problem. Gemcitabine, an active agent in both lung cancer and pancreas cancer, is demonstrated effective in breast caner. But there have been relatively less data of gemcitabine in anthracycline and/or taxane-resistant breast cancer. Therefore we employe this study to explore the efficacy and safety of gemcitabine based combination regimen in this population. Methods： From May 2002 to March 2006, 28 patients with measurable lesion of advanced metastatic breast cancer who were resistant to prior anthracycline and taxane based chemotherapy were enrolled. Patients were treated with gemcitabine based combination chemotherapy with a median cycles of 3 （range 2-6）. Results： The overall response rate was 28.6% （8/28）, with 1 CR （Complete response 3.5%） and 7 PRs （Partial response 25%）. Stable disease was seen in 8 patients （28.6%） while disease progressed in 12 patiens （42.8%）. The median time to progression was 4.5 m （range, 2-23 m）. The main toxicity included bone marrow depression, alopecia, mucositis and peripheral neurotoxicity. The grade 3 to 4 clinical adverse effect was leukopenia in 5 cases （17.9%） and thrombocytopenia in 8 cases （30%）. Conclusion： Gemcitabine based combination regimens is feasible in anthracycline and taxane-resistant advanced breast cancer. The clinical response and TTP is acceptable with limited toxicity pattern.展开更多
文摘本研究检测黑色素瘤优先表达抗原(PRAME)基因在不同类型急性白血病(acute leukemia,AL)中的表达及其与病情发展的相互关系。用建立的检测PRAME基因的SYBR Green I荧光实时定量逆转录聚合酶链反应(RQ-RT-PCR)方法,对55例急性白血病患者(急性髓系白血病43例、急性淋巴细胞性白血病9例、其它类型的白血病3例)的骨髓样本进行PRAME基因表达情况的检测。同时选择7例非恶性血液疾病患者的骨髓样本和8例正常人外周血样本作为阴性对照,并用白血病细胞系K562作为阳性对照。结果表明:35例急性白血病患者中检测出不同水平的PRAME基因表达,在其余20例急性白血病患者及15例对照样本中均未检测出PRAME基因,总阳性率64%,两组之间具有非常显著的差异(p<0.005)。在35例PRAME基因阳性表达的患者中,AML28例,阳性检出率为65%,其中以M3、M4和M2亚型的阳性检出率较高,分别为90%、70%、67%;ALL5例,阳性检出率为56%。在31例融合基因阳性患者中,PRAME基因阳性患者为23例,而在24例融合基因阴性患者中,PRAME基因阳性患者达到12例。比较各种临床因素与PRAME表达水平的相关性未发现明显相关。短期观察5例PRAME基因阳性表达的患者显示出经化疗达到完全缓解(CR)后,患者PRAME基因表达均转阴,下降水平为63-23921/106×GAPDH拷贝。长期观察1例M3患者显示化疗后PRAME基因水平逐渐下降并转阴,患者至今仍处于CR状态。结论:PRAME基因在65%的急性白血病中呈阳性表达,其中以M3、M4和M2亚型最常见,在正常个体和非恶性血液病患者中不表达。不同白血病个体之间PRAME基因表达水平不同,随病情缓解其表达水平降低或转阴。PRAME基因可以成为微小残留病(MRD)检测的一种分子标志。
文摘目的分析自体外周血造血干细胞支持下高剂量化疗对于晚期乳腺癌化疗前后生活质量影响,为选择有效改善患者生活质量的干预措施提供依据。方法回顾性分析25例病例组行自体外周血造血干细胞支持下高剂量化疗的晚期乳腺癌患者临床资料,同期选取接受常规方案化疗的22例晚期乳腺癌患者为对照组。采用简明健康状况调查量表SF-36(MOS36-item short forum health survey)的缩减版本SF-12量表作为问卷调查表。在第1个时间点(T1)为治疗前,第2个时间点(T2)为第2周期高剂量化疗前和第4周期常规治疗前,第3个时间点(T3)为高剂量化疗结束3月随访时和常规剂量化疗结束后3月进行调查随访。采用t检验进行统计分析。结果高剂量化疗组和常规剂量组患者生活质量8个维度评分T2较T1均显著下降(P<0.05),T3较T1两组患者活力和社会功能维度仍显著下降(P<0.05),其他维度差异无统计学意义。T2时间点高剂量化疗组较常规剂量化疗组总体健康、生理功能、活力和社会功能维度显著下降(P<0.05),T1和T3时间点高剂量化疗组和常规剂量组差异无统计学意义。结论自体外周血造血干细胞支持下高剂量化疗导致乳腺癌患者总体健康、生理功能、活力和社会功能显著下降,但患者高剂量化疗缩短了治疗时间,使患者可更快的恢复正常生活。
文摘Objective： Anthracycline and taxane are the standard agents in combined chemotherapy of advanced breast cancer. However, when these agents based chemotherapy is failure, the selection of salvage regimen is still of problem. Gemcitabine, an active agent in both lung cancer and pancreas cancer, is demonstrated effective in breast caner. But there have been relatively less data of gemcitabine in anthracycline and/or taxane-resistant breast cancer. Therefore we employe this study to explore the efficacy and safety of gemcitabine based combination regimen in this population. Methods： From May 2002 to March 2006, 28 patients with measurable lesion of advanced metastatic breast cancer who were resistant to prior anthracycline and taxane based chemotherapy were enrolled. Patients were treated with gemcitabine based combination chemotherapy with a median cycles of 3 （range 2-6）. Results： The overall response rate was 28.6% （8/28）, with 1 CR （Complete response 3.5%） and 7 PRs （Partial response 25%）. Stable disease was seen in 8 patients （28.6%） while disease progressed in 12 patiens （42.8%）. The median time to progression was 4.5 m （range, 2-23 m）. The main toxicity included bone marrow depression, alopecia, mucositis and peripheral neurotoxicity. The grade 3 to 4 clinical adverse effect was leukopenia in 5 cases （17.9%） and thrombocytopenia in 8 cases （30%）. Conclusion： Gemcitabine based combination regimens is feasible in anthracycline and taxane-resistant advanced breast cancer. The clinical response and TTP is acceptable with limited toxicity pattern.
