Gastric cancer is one of the most common malignancies worldwide; however, the molecular mechanism in tumorigenesis still needs exploration. BCL2L11 belongs to the BCL-2 family, and acts as a central regulator of the i...Gastric cancer is one of the most common malignancies worldwide; however, the molecular mechanism in tumorigenesis still needs exploration. BCL2L11 belongs to the BCL-2 family, and acts as a central regulator of the intrinsic apoptotic cascade and mediates cell apoptosis. Although miRNAs have been reported to be involved in each stage of cancer development, the role of miR-24 in GC has not been reported yet. In the present study, miR- 24 was found to be up-regulated while the expression of BCL2L11 was inhibited in tumor tissues of GC. Studies from both in vitro and in vivo shown that miR-24 regulates BCL2L11 expression by directly binding with 3＇UTR of mRNA, thus promoting cell growth, migration while inhibiting cell apoptosis. Therefore, miR-24 is a novel onco-miRNA that can be potential drug targets for future clinical use.展开更多
目的研究T细胞型急性淋巴细胞白血病(acute lymphoblastic leukemia,ALL)患者HOX11L2基因的表达及其临床意义。方法采用回顾性分析方法对50例患者性别、年龄、白细胞数量、FAB分类(L1,L2 and L3)、分子生物学特点以及生存时间进行分析,...目的研究T细胞型急性淋巴细胞白血病(acute lymphoblastic leukemia,ALL)患者HOX11L2基因的表达及其临床意义。方法采用回顾性分析方法对50例患者性别、年龄、白细胞数量、FAB分类(L1,L2 and L3)、分子生物学特点以及生存时间进行分析,观察HOX11L2基因表达与临床特点及预后关系。结果50例T细胞型急性淋巴细胞白血病患者中,表达HOX11L2基因患者为12例(24%),其中男性7例(58.3%),女性5例(41.7%),HOX11L2基因表达者在男女性别之间的比较,差异无统计学意义(χ^2=0.119,P=0.730)。表达HOX11L2基因患者年龄在5~10岁间居多,表达率为58.3%,与其它年龄组之间的比较,差异有统计学意义(χ^2=11.577,P=0.018)。HOX11L2基因表达患者中白细胞计数≤50×10^9/L的患者10例(83.3%),白细胞计数>50×10^9/L的患者2例(16.7%),两组比较差异有统计学意义(χ^2=5.469,P=0.019)。FAB分类中,有75%的HOX11L2基因表达患者为L1型,与L2和L3组相比较,差异有统计学意义(χ^2=8.766,P=0.008)。其中34例获得随访资料的患者,HOX11L2基因表达组比非表达组生存时间短(中位生存时间分别为8.0个月和11.0个月),两组差异具有统计学意义(P<0.05)。结论研究结果表明HOX11L2基因主要表达于T-ALL患者,且以L1型儿童T-ALL为主,HOX11L2基因表达者预后不良,生存时间短。临床上通过HOX11L2基因检测结果与常规细胞形态学、遗传学、荧光原位杂交等技术检测结果相结合,将对急性淋巴细胞白血病的鉴别诊断、分型、预后及微小残留病检测等具有十分重要的意义。展开更多
基金This work was supported by grants from the National research platform of clinical evaluation technology for new anticancer drugs （No. 2013ZX09303001 ）, the National Natural Science Foundation of China （Grant Nos. 81201946 and 81372394） and Tianjin City High School Science ＆ Technology Fund Planning Project （20130122）. The funders had no role in study design collection, analysis, and interpretation of data+1 种基金 in the writing of the report and in the decision to submit this article for publication.
文摘Gastric cancer is one of the most common malignancies worldwide; however, the molecular mechanism in tumorigenesis still needs exploration. BCL2L11 belongs to the BCL-2 family, and acts as a central regulator of the intrinsic apoptotic cascade and mediates cell apoptosis. Although miRNAs have been reported to be involved in each stage of cancer development, the role of miR-24 in GC has not been reported yet. In the present study, miR- 24 was found to be up-regulated while the expression of BCL2L11 was inhibited in tumor tissues of GC. Studies from both in vitro and in vivo shown that miR-24 regulates BCL2L11 expression by directly binding with 3＇UTR of mRNA, thus promoting cell growth, migration while inhibiting cell apoptosis. Therefore, miR-24 is a novel onco-miRNA that can be potential drug targets for future clinical use.
文摘目的研究T细胞型急性淋巴细胞白血病(acute lymphoblastic leukemia,ALL)患者HOX11L2基因的表达及其临床意义。方法采用回顾性分析方法对50例患者性别、年龄、白细胞数量、FAB分类(L1,L2 and L3)、分子生物学特点以及生存时间进行分析,观察HOX11L2基因表达与临床特点及预后关系。结果50例T细胞型急性淋巴细胞白血病患者中,表达HOX11L2基因患者为12例(24%),其中男性7例(58.3%),女性5例(41.7%),HOX11L2基因表达者在男女性别之间的比较,差异无统计学意义(χ^2=0.119,P=0.730)。表达HOX11L2基因患者年龄在5~10岁间居多,表达率为58.3%,与其它年龄组之间的比较,差异有统计学意义(χ^2=11.577,P=0.018)。HOX11L2基因表达患者中白细胞计数≤50×10^9/L的患者10例(83.3%),白细胞计数>50×10^9/L的患者2例(16.7%),两组比较差异有统计学意义(χ^2=5.469,P=0.019)。FAB分类中,有75%的HOX11L2基因表达患者为L1型,与L2和L3组相比较,差异有统计学意义(χ^2=8.766,P=0.008)。其中34例获得随访资料的患者,HOX11L2基因表达组比非表达组生存时间短(中位生存时间分别为8.0个月和11.0个月),两组差异具有统计学意义(P<0.05)。结论研究结果表明HOX11L2基因主要表达于T-ALL患者,且以L1型儿童T-ALL为主,HOX11L2基因表达者预后不良,生存时间短。临床上通过HOX11L2基因检测结果与常规细胞形态学、遗传学、荧光原位杂交等技术检测结果相结合,将对急性淋巴细胞白血病的鉴别诊断、分型、预后及微小残留病检测等具有十分重要的意义。
