Phosphoinositide 3-kinase p110beta activity: key role in metabolism and mammary gland cancer but not development.
Phosphoinositide 3-kinase p110beta activity: key role in metabolism and mammary gland cancer but not development.
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DOI:
10.1126/scisignal.1161577
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发表时间:
2008-09-09
影响因子:
7.3
通讯作者:
Hirsch E
中科院分区:
文献类型:
--
作者:
Ciraolo E;Iezzi M;Marone R;Marengo S;Curcio C;Costa C;Azzolino O;Gonella C;Rubinetto C;Wu H;Dastrù W;Martin EL;Silengo L;Altruda F;Turco E;Lanzetti L;Musiani P;Rückle T;Rommel C;Backer JM;Forni G;Wymann MP;Hirsch E
The phosphoinositide 3-kinase (PI3K) pathway crucially controls metabolism and cell growth. Although different PI3K catalytic subunits are known to play distinct roles, the specific in vivo function of p110β (the product of the PIK3CB gene) is not clear. Here, we show that mouse mutants expressing a catalytically inactive PIK3CBK805R mutant survived to adulthood but showed growth retardation and developed mild insulin resistance with age. Pharmacological and genetic analyses of p110β function revealed that p110β catalytic activity is required for PI3K signaling downstream of heterotrimeric guanine nucleotide-binding (G protein)-coupled receptors as well as to sustain long term insulin signaling. In addition, PIK3CBK805R mice were protected in a model of ERBB2-driven tumor development. These findings indicate an unexpected role for p110β catalytic activity in diabetes and cancer, opening potential new avenues for therapeutic intervention.
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影响因子:
64.5
作者:
Knight, Zachary A.;Gonzalez, Beatriz;Shokat, Kevan M.
通讯作者:
Shokat, Kevan M.
影响因子:
4.1
作者:
Mora, A;Lipina, C;Alessi, DR
通讯作者:
Alessi, DR
影响因子:
8.2
作者:
Ozanne, S. E.;Jensen, C. B.;Vaag, A. A.
通讯作者:
Vaag, A. A.
影响因子:
8
作者:
Bénistant, C;Chapuis, H;Roche, S
通讯作者:
Roche, S
影响因子:
64.8
作者:
Lanzetti, L;Palamidessi, A;Di Fiore, PP
通讯作者:
Di Fiore, PP