Merlin/NF2 loss-driven tumorigenesis linked to CRL4(DCAF1)-mediated inhibition of the hippo pathway kinases Lats1 and 2 in the nucleus.

Merlin/NF2 loss-driven tumorigenesis linked to CRL4(DCAF1)-mediated inhibition of the hippo pathway kinases Lats1 and 2 in the nucleus.
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DOI:
10.1016/j.ccr.2014.05.001
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发表时间:
2014-07-14
期刊:
影响因子:
50.3
通讯作者:
Giancotti FG
Giancotti FG
中科院分区:
医学1区
文献类型:
--
作者:
Li W;Cooper J;Zhou L;Yang C;Erdjument-Bromage H;Zagzag D;Snuderl M;Ladanyi M;Hanemann CO;Zhou P;Karajannis MA;Giancotti FG

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目前尚不清楚Merlin/NF 2是否通过激活质膜上Hippo通路的上游组分或通过抑制细胞核中的E3泛素连接酶CRL 4DCAF 1来抑制肿瘤发生。我们发现去抑制的CRL 4 DCAF 1通过遍在化并从而抑制细胞核中的Lats 1和2来促进雅普和TEAD依赖性转录。遗传上位性实验和肿瘤源性错义突变的分析表明,这种信号连接维持Merlin缺陷型肿瘤细胞的致瘤性。临床样本的分析证实,该途径在NF 2突变型肿瘤中起作用。我们的结论是,去抑制CRL 4 DCAF 1促进激活雅普通过抑制Lats 1和2在细胞核中。
It is currently unclear if Merlin/NF2 suppresses tumorigenesis by activating upstream components of the Hippo pathway at the plasma membrane or by inhibiting the E3 ubiquitin ligase CRL4DCAF1 in the nucleus. We found that de-repressed CRL4DCAF1 promotes YAP and TEAD-dependent transcription by ubiquitylating and thereby inhibiting Lats1 and 2 in the nucleus. Genetic epistasis experiments and analysis of tumor-derived missense mutations indicate that this signaling connection sustains the oncogenicity of Merlin-deficient tumor cells. Analysis of clinical samples confirms that this pathway operates in NF2 mutant tumors. We conclude that de-repressed CRL4DCAF1 promotes activation of YAP by inhibiting Lats1 and 2 in the nucleus.
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发表时间: 2010-02-19
期刊: Cell
影响因子: 64.5
作者:
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