WT1 contributes to leukemogenesis: Expression patterns in 7,12‐dimethylbenz[a]anthracene (DMBA)‐induced leukemia

WT1 contributes to leukemogenesis: Expression patterns in 7,12‐dimethylbenz[a]anthracene (DMBA)‐induced leukemia
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WT1 有助于白血病发生:7,12-二甲基苯并[a]蒽 (DMBA) 诱导的白血病中的表达模式

DOI:
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发表时间:
1997
影响因子:
6.4
通讯作者:
T. Sugiyama
T. Sugiyama
中科院分区:
医学1区
文献类型:
--
作者:
M. Osaka;K. Koami;T. Sugiyama

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在某些白血病中,Wilms肿瘤基因WT 1可能具有与肿瘤抑制基因不同的功能。使用7,12-二甲基苯并[a]蒽(DMBA)诱导的大鼠白血病系统,我们检查了WT 1表达是否参与白血病发生过程,因为该模型使我们能够分析在白血病发生的各个阶段被DMBA改变的细胞。通过半定量逆转录聚合酶链反应(RT-PCR)方法,在21例DMBA诱导的成红细胞白血病中检测到15例(71%)WT 1表达。在15例表达WT 1的白血病中,加塔-1(一种红细胞特异性转录因子,可能调节WT 1的表达)也在13例中表达(p < 0.05)。另一方面,在任何正常或早期白血病前大鼠中均未检测到WT 1表达,在晚期白血病前阶段的8只大鼠中的1只中检测到WT 1表达。这些结果表明,具有高表达水平的WT 1的细胞倾向于发展成白血病,并且WT 1在晚期白血病发生中起作用,表明WT 1的表达在细胞增殖和维持某些白血病细胞的活力中起重要作用。Int. J. Cancer 72:696-699,1997.© 1997 Wiley利斯公司
The Wilms'‐tumor gene WT1 may have a different function from a tumor‐suppressor gene in some leukemias. Using the 7,12‐dimethylbenz[a]anthracene (DMBA)‐induced rat leukemia system, we examined whether WT1 expression was involved during leukemogenesis, since this model enabled us to analyze cells altered by DMBA at various stages of leukemogenesis. By the semi‐quantitative reverse‐transcriptase polymerase chain reaction(RT‐PCR) method, WT1 expression was detected in 15 (71%) of 21 DMBA‐induced erythroblastic leukemias. Among 15 WT1‐expressing leukemias, GATA‐1, which is an erythroid‐specific transcription factor and might regulate WT1 expression, was also expressed in 13 cases (p < 0.05). On the other hand, WT1 expression was not detected in any normal or early pre‐leukemic rats and was detected in 1 of 8 rats in late pre‐leukemic stages. These results showed that cells with a high expression level of WT1 tended to develop into leukemia and that WT1 contributed to leukemogenesis in the late stage, suggesting that the expression of WT1 plays an important role in cell proliferation and in maintaining the viability of some leukemia cells. Int. J. Cancer 72:696–699, 1997. © 1997 Wiley‐Liss, Inc.
DOI: --
发表时间: 1994
期刊: The Journal of biological chemistry
影响因子: --
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DOI: --
发表时间: 1995
期刊: Oncogene.
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发表时间: 1996
期刊: Leukemia
影响因子: 11.4
作者:
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DOI: --
发表时间: 1993
期刊: Leukemia
影响因子: 11.4
作者:
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通讯作者: Miyoshi,I