Loss of NDRG2 expression activates PI3K-AKT signalling via PTEN phosphorylation in ATLL and other cancers.
Loss of NDRG2 expression activates PI3K-AKT signalling via PTEN phosphorylation in ATLL and other cancers.
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在 ATLL 和其他癌症中,NDRG2 表达缺失会通过 PTEN 磷酸化激活 PI3K-AKT 信号传导。
DOI:
10.1038/ncomms4393
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发表时间:
2014-02-26
影响因子:
16.6
通讯作者:
Morishita, Kazuhiro
中科院分区:
文献类型:
--
作者:
Nakahata, Shingo;Ichikawa, Tomonaga;Maneesaay, Phudit;Saito, Yusuke;Nagai, Kentaro;Tamura, Tomohiro;Manachai, Nawin;Yamakawa, Norio;Hamasaki, Makoto;Kitabayashi, Issay;Arai, Yasuhito;Kanai, Yae;Taki, Tomohiko;Abe, Takaya;Kiyonari, Hiroshi;Shimoda, Kazuya;Ohshima, Koichi;Horii, Akira;Shima, Hiroshi;Taniwaki, Masafumi;Yamaguchi, Ryoji;Morishita, Kazuhiro
Constitutive phosphatidylinositol 3-kinase (PI3K)-AKT activation has a causal role in adult T-cell leukaemia-lymphoma (ATLL) and other cancers. ATLL cells do not harbour genetic alterations in PTEN and PI3KCA but express high levels of PTEN that is highly phosphorylated at its C-terminal tail. Here we report a mechanism for the N-myc downstream-regulated gene 2 (NDRG2)-dependent regulation of PTEN phosphatase activity via the dephosphorylation of PTEN at the Ser380, Thr382 and Thr383 cluster within the C-terminal tail. We show that NDRG2 is a PTEN-binding protein that recruits protein phosphatase 2A (PP2A) to PTEN. The expression of NDRG2 is frequently downregulated in ATLL, resulting in enhanced phosphorylation of PTEN at the Ser380/Thr382/Thr383 cluster and enhanced activation of the PI3K-AKT pathway. Given the high incidence of T-cell lymphoma and other cancers in NDRG2-deficient mice, PI3K-AKT activation via enhanced PTEN phosphorylation may be critical for the development of cancer. The PI3K pathway that encompasses the tumour suppressor PTEN contributes to tumourigenesis in adult T-cell leukaemia-lymphoma (ATLL). In this study, Nakahata et al. show that PTEN is dephosphorylated by NDRG2, and that loss of NDGR2 in ATLL results in the activation of the PI3K pathway.
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影响因子:
5.8
作者:
Barreau, Olivia;Assie, Guillaume;Bertherat, Jerome
通讯作者:
Bertherat, Jerome
DOI:
10.1073/pnas.0507184102
发表时间:
2005-10-18
影响因子:
11.1
作者:
Fukuda, R;Hayashi, A;Tsuji, T
通讯作者:
Tsuji, T
影响因子:
20.3
作者:
Hidaka, Tomonori;Nakahata, Shingo;Morishita, Kazuhiro
通讯作者:
Morishita, Kazuhiro
影响因子:
2.7
作者:
Ikezoe, Takayuki;Nishioka, Chie;Taguchi, Hirokuni
通讯作者:
Taguchi, Hirokuni
影响因子:
3.6
作者:
Hu, Xiao-Lan;Liu, Xin-Ping;Yao, Li-Bo
通讯作者:
Yao, Li-Bo