SHP2 tyrosine phosphatase converts parafibromin/Cdc73 from a tumor suppressor to an oncogenic driver.
SHP2 tyrosine phosphatase converts parafibromin/Cdc73 from a tumor suppressor to an oncogenic driver.
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DOI:
10.1016/j.molcel.2011.05.014
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发表时间:
2011-07-08
期刊:
影响因子:
16
通讯作者:
Hatakeyama M
中科院分区:
文献类型:
--
作者:
Takahashi A;Tsutsumi R;Kikuchi I;Obuse C;Saito Y;Seidi A;Karisch R;Fernandez M;Cho T;Ohnishi N;Rozenblatt-Rosen O;Meyerson M;Neel BG;Hatakeyama M
Deregulation of SHP2 is associated with malignant diseases as well as developmental disorders. Although SHP2 is required for full activation of RAS signaling, other potential roles in cell physiology have not been elucidated. Here we show that SHP2 dephosphorylates parafibromin/Cdc73, a core component of the RNA polymerase II-associated factor (PAF) complex. Parafibromin is known to act as a tumor suppressor that inhibits cyclin D1 and c-myc by recruiting SUV39H1 histone methyltransferase. However, parafibromin can also act in the opposing direction by binding β-catenin, thereby activating pro-mitogenic/oncogenic Wnt signaling. We found that, upon tyrosine dephosphorylation by SHP2, parafibromin acquires the ability to stably bind β-catenin. The parafibromin/β-catenin interaction overrides parafibromin/SUV39H1-mediated transrepression and induces expression of Wnt target genes, including cyclin D1 and c-myc. Hence, SHP2 governs the opposing functions of parafibromin, deregulation of which may cause the development of tumors or developmental malformations.
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影响因子:
30.8
作者:
Cordeddu, Viviana;Di Schiavi, Elia;Pennacchio, Len A.;Ma'ayan, Avi;Sarkozy, Anna;Fodale, Valentina;Cecchetti, Serena;Cardinale, Alessio;Martin, Joel;Schackwitz, Wendy;Lipzen, Anna;Zampino, Giuseppe;Mazzanti, Laura;Digilio, Maria C.;Martinelli, Simone;Flex, Elisabetta;Lepri, Francesca;Bartholdi, Deborah;Kutsche, Kerstin;Ferrero, Giovanni B.;Anichini, Cecilia;Selicorni, Angelo;Rossi, Cesare;Tenconi, Romano;Zenker, Martin;Merlo, Daniela;Dallapiccola, Bruno;Iyengar, Ravi;Bazzicalupo, Paolo;Gelb, Bruce D.;Tartaglia, Marco
通讯作者:
Tartaglia, Marco
影响因子:
7.8
作者:
KINCH, MS;CLARK, GJ;DER, CJ;BURRIDGE, K
通讯作者:
BURRIDGE, K
影响因子:
64.5
作者:
Kim J;Guermah M;Roeder RG
通讯作者:
Roeder RG
影响因子:
8
作者:
Miyamoto, D.;Miyamoto, M.;Hatakeyama, M.
通讯作者:
Hatakeyama, M.
DOI:
10.1016/j.bbagrm.2010.01.001
发表时间:
2010-05
影响因子:
4.7
作者:
Jaehning, Judith A.
通讯作者:
Jaehning, Judith A.