Histone demethylase RBP2 mediates the blast crisis of chronic myeloid leukemia through an RBP2/PTEN/BCR-ABL cascade.

Histone demethylase RBP2 mediates the blast crisis of chronic myeloid leukemia through an RBP2/PTEN/BCR-ABL cascade.
复制标题

组蛋白去甲基化酶 RBP2 通过 RBP2/PTEN/BCR-ABL 级联介导慢性粒细胞白血病的急变。

DOI:
10.1016/j.cellsig.2019.109360
复制
发表时间:
2019-11
影响因子:
4.8
通讯作者:
Chen Chunyan
Chen Chunyan
中科院分区:
生物学2区
文献类型:
--
作者:
Yin Xiaolin;Zhou Minran;Fu Yue;Yang Lin;Xu Man;Sun Ting;Wang Xiaoming;Huang Tao;Chen Chunyan

文献摘要

参考文献

相似文献

表观遗传障碍在肿瘤的发生和发展中起着关键作用,其中组蛋白甲基化异常是常见的。慢性粒细胞白血病慢性期(CML-CP)患者对TKI疗效较好,而急变期(CML-BP)患者疗效较差,病死率较高。然而,尽管慢性粒细胞白血病的急变机制尚不清楚,但bcr-abl的高表达和激活通常与CML急变有关。我们发现组蛋白H3赖氨酸4(H3K4)去甲基酶RBP2的表达与bcr-abl的表达呈负相关,这表明这两个基因之间存在调控联系。我们还发现,RBP2通过直接下调PTEN的表达来介导BCR-ABL的去磷酸化,这依赖于组蛋白去甲基酶的活性,而PTEN靶向于BCR-ABL的蛋白磷酸酶活性,BCR-ABL是一种直接去磷酸化BCR-ABL的磷酸酶。在临床标本中,RBP2和PTEN的表达呈正相关。这些数据表明,RBP2的低表达通过激活RBP2/PTEN/BCR-ABL级联反应促进了BLAST危机的转变。
Epigenetic disorders play a key role in tumorigenesis and development, among which histone methylation abnormalities are common. While patients living with chronic myeloid leukemia in the chronic phase (CML-CP) have a good response to TKI, blastic phase (CML-BP) patients demonstrate poor efficacy and high fatality rates. However, while the mechanism of blast crisis of chronic myeloid leukemia remains unclear, high expression and activation of BCR-ABL are usually related to CML blast crisis transition. We found that histone H3 lysine 4 (H3K4) demethylase RBP2 expression is negatively correlated with BCR-ABL expression, which suggests a regulatory link between these two genes. We also discovered that RBP2 mediates the dephosphorylation of BCR-ABL by directly downregulating PTEN expression, depending on histone demethylase activity, while PTEN targets protein phosphatase activity of BCR-ABL, a phosphatase which directly dephosphorylates BCR-ABL. In clinical specimens, the mRNA expression of RBP2 was found to be positively correlated with that of PTEN. These data suggest that the under-expression of RBP2 promotes blast crisis transition by activating an RBP2/PTEN/BCR-ABL cascade.
DOI: 10.1371/journal.pone.0110682
发表时间: 2014
期刊: PloS one
影响因子: 3.7
作者:
Panuzzo C;Crivellaro S;Carrà G;Guerrasio A;Saglio G;Morotti A
通讯作者: Morotti A
DOI: 10.1016/j.cell.2007.02.013
发表时间: 2007-03-09
期刊: CELL
影响因子: 64.5
作者:
Klose, Robert J.;Yan, Qin;Kaelin, William G., Jr.
通讯作者: Kaelin, William G., Jr.
DOI: 10.1016/j.ccr.2005.10.015
发表时间: 2005-11-01
期刊: CANCER CELL
影响因子: 50.3
作者:
Neviani, P;Santhanam, R;Perrotti, D
通讯作者: Perrotti, D
DOI: 10.1182/blood-2010-08-304477
发表时间: 2011-06-16
期刊: BLOOD
影响因子: 20.3
作者:
Lucas, Claire M.;Harris, Robert J.;Clark, Richard E.
通讯作者: Clark, Richard E.
DOI: 10.1007/s11899-012-0114-5
发表时间: 2012-06-01
影响因子: 2.9
作者:
Skorski, Tomasz
通讯作者: Skorski, Tomasz