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PMID |
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16842857
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Lipid phosphatases, src homology 2 domain containing inositol 5'-phosphatase 2 (SHIP2) and skeletal muscle and kidney-enriched inositol phosphatase (SKIP) hydrolyze PI(3,4,5)P(3) to PI(3,4)P(2) and phosphatase and tensin homolog deleted on chromosome ten (PTEN) hydrolyzes PI(3,4,5)P(3) to PI(4,5)P(2).
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16842857
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SHIP2 negatively regulates insulin signaling relatively specifically via its 5'-phosphatase activity.
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3 |
16842857
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Targeted disruption of the SHIP2 gene in mice resulted in increased insulin sensitivity and conferred protection from obesity induced by a high-fat diet.
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4 |
16842857
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Polymorphisms in the human SHIP2 gene are associated, at least in part, with the insulin resistance of type 2 diabetes.
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5 |
16842857
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Importantly, inhibition of endogenous SHIP2 through the liver-specific expression of a dominant-negative SHIP2 improves glucose metabolism and insulin resistance in diabetic db/db mice.
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6 |
16842857
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Overexpression of PTEN and SKIP also inhibited insulin-induced phosphorylation of Akt and the uptake of glucose in cultured cells.
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7 |
16842857
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Taken together, inhibition of endogenous SHIP2 in the whole body appears to be effective at improving the insulin resistance associated with type 2 diabetes and/or obesity.
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8 |
16842857
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Inhibition of PTEN in the tissues specifically targeted, including skeletal muscle and fat, may result in an amelioration of insulin resistance in type 2 diabetes, although caution against the formation of tumors is needed.
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9 |
16842857
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Lipid phosphatases, src homology 2 domain containing inositol 5'-phosphatase 2 (SHIP2) and skeletal muscle and kidney-enriched inositol phosphatase (SKIP) hydrolyze PI(3,4,5)P(3) to PI(3,4)P(2) and phosphatase and tensin homolog deleted on chromosome ten (PTEN) hydrolyzes PI(3,4,5)P(3) to PI(4,5)P(2).
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10 |
16842857
|
SHIP2 negatively regulates insulin signaling relatively specifically via its 5'-phosphatase activity.
|
11 |
16842857
|
Targeted disruption of the SHIP2 gene in mice resulted in increased insulin sensitivity and conferred protection from obesity induced by a high-fat diet.
|
12 |
16842857
|
Polymorphisms in the human SHIP2 gene are associated, at least in part, with the insulin resistance of type 2 diabetes.
|
13 |
16842857
|
Importantly, inhibition of endogenous SHIP2 through the liver-specific expression of a dominant-negative SHIP2 improves glucose metabolism and insulin resistance in diabetic db/db mice.
|
14 |
16842857
|
Overexpression of PTEN and SKIP also inhibited insulin-induced phosphorylation of Akt and the uptake of glucose in cultured cells.
|
15 |
16842857
|
Taken together, inhibition of endogenous SHIP2 in the whole body appears to be effective at improving the insulin resistance associated with type 2 diabetes and/or obesity.
|
16 |
16842857
|
Inhibition of PTEN in the tissues specifically targeted, including skeletal muscle and fat, may result in an amelioration of insulin resistance in type 2 diabetes, although caution against the formation of tumors is needed.
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17 |
18573875
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Increased insulin action in SKIP heterozygous knockout mice.
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18 |
18573875
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Previous studies showed that SKIP negatively regulates insulin-induced phosphatidylinositol 3-kinase signaling (Ijuin and Takenawa, Mol.
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19 |
18573875
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We now have generated mice with a targeted mutation of the mouse ortholog of the human SKIP gene, Pps.
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20 |
18573875
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Adult heterozygous Pps mutant mice show increased insulin sensitivity and reduced diet-induced obesity with increased Akt/protein kinase B (PKB) phosphorylation in skeletal muscle but not in adipose tissue.
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21 |
18573875
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The insulin-induced uptake of 2-deoxyglucose into the isolated soleus muscle was significantly enhanced in Pps mutant mice.
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22 |
18573875
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Furthermore, in vitro knockdown studies in L6 myoblast cells revealed that reduction of SKIP expression level increased insulin-stimulated Akt/PKB phosphorylation and 2-deoxyglucose uptake.
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23 |
18573875
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These results imply that SKIP regulates insulin signaling in skeletal muscle.
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24 |
18573875
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Thus, SKIP may be a promising pharmacologic target for the treatment of insulin resistance and diabetes.
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25 |
18573875
|
Increased insulin action in SKIP heterozygous knockout mice.
|
26 |
18573875
|
Previous studies showed that SKIP negatively regulates insulin-induced phosphatidylinositol 3-kinase signaling (Ijuin and Takenawa, Mol.
|
27 |
18573875
|
We now have generated mice with a targeted mutation of the mouse ortholog of the human SKIP gene, Pps.
|
28 |
18573875
|
Adult heterozygous Pps mutant mice show increased insulin sensitivity and reduced diet-induced obesity with increased Akt/protein kinase B (PKB) phosphorylation in skeletal muscle but not in adipose tissue.
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29 |
18573875
|
The insulin-induced uptake of 2-deoxyglucose into the isolated soleus muscle was significantly enhanced in Pps mutant mice.
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30 |
18573875
|
Furthermore, in vitro knockdown studies in L6 myoblast cells revealed that reduction of SKIP expression level increased insulin-stimulated Akt/PKB phosphorylation and 2-deoxyglucose uptake.
|
31 |
18573875
|
These results imply that SKIP regulates insulin signaling in skeletal muscle.
|
32 |
18573875
|
Thus, SKIP may be a promising pharmacologic target for the treatment of insulin resistance and diabetes.
|
33 |
18573875
|
Increased insulin action in SKIP heterozygous knockout mice.
|
34 |
18573875
|
Previous studies showed that SKIP negatively regulates insulin-induced phosphatidylinositol 3-kinase signaling (Ijuin and Takenawa, Mol.
|
35 |
18573875
|
We now have generated mice with a targeted mutation of the mouse ortholog of the human SKIP gene, Pps.
|
36 |
18573875
|
Adult heterozygous Pps mutant mice show increased insulin sensitivity and reduced diet-induced obesity with increased Akt/protein kinase B (PKB) phosphorylation in skeletal muscle but not in adipose tissue.
|
37 |
18573875
|
The insulin-induced uptake of 2-deoxyglucose into the isolated soleus muscle was significantly enhanced in Pps mutant mice.
|
38 |
18573875
|
Furthermore, in vitro knockdown studies in L6 myoblast cells revealed that reduction of SKIP expression level increased insulin-stimulated Akt/PKB phosphorylation and 2-deoxyglucose uptake.
|
39 |
18573875
|
These results imply that SKIP regulates insulin signaling in skeletal muscle.
|
40 |
18573875
|
Thus, SKIP may be a promising pharmacologic target for the treatment of insulin resistance and diabetes.
|
41 |
18573875
|
Increased insulin action in SKIP heterozygous knockout mice.
|
42 |
18573875
|
Previous studies showed that SKIP negatively regulates insulin-induced phosphatidylinositol 3-kinase signaling (Ijuin and Takenawa, Mol.
|
43 |
18573875
|
We now have generated mice with a targeted mutation of the mouse ortholog of the human SKIP gene, Pps.
|
44 |
18573875
|
Adult heterozygous Pps mutant mice show increased insulin sensitivity and reduced diet-induced obesity with increased Akt/protein kinase B (PKB) phosphorylation in skeletal muscle but not in adipose tissue.
|
45 |
18573875
|
The insulin-induced uptake of 2-deoxyglucose into the isolated soleus muscle was significantly enhanced in Pps mutant mice.
|
46 |
18573875
|
Furthermore, in vitro knockdown studies in L6 myoblast cells revealed that reduction of SKIP expression level increased insulin-stimulated Akt/PKB phosphorylation and 2-deoxyglucose uptake.
|
47 |
18573875
|
These results imply that SKIP regulates insulin signaling in skeletal muscle.
|
48 |
18573875
|
Thus, SKIP may be a promising pharmacologic target for the treatment of insulin resistance and diabetes.
|
49 |
18573875
|
Increased insulin action in SKIP heterozygous knockout mice.
|
50 |
18573875
|
Previous studies showed that SKIP negatively regulates insulin-induced phosphatidylinositol 3-kinase signaling (Ijuin and Takenawa, Mol.
|
51 |
18573875
|
We now have generated mice with a targeted mutation of the mouse ortholog of the human SKIP gene, Pps.
|
52 |
18573875
|
Adult heterozygous Pps mutant mice show increased insulin sensitivity and reduced diet-induced obesity with increased Akt/protein kinase B (PKB) phosphorylation in skeletal muscle but not in adipose tissue.
|
53 |
18573875
|
The insulin-induced uptake of 2-deoxyglucose into the isolated soleus muscle was significantly enhanced in Pps mutant mice.
|
54 |
18573875
|
Furthermore, in vitro knockdown studies in L6 myoblast cells revealed that reduction of SKIP expression level increased insulin-stimulated Akt/PKB phosphorylation and 2-deoxyglucose uptake.
|
55 |
18573875
|
These results imply that SKIP regulates insulin signaling in skeletal muscle.
|
56 |
18573875
|
Thus, SKIP may be a promising pharmacologic target for the treatment of insulin resistance and diabetes.
|
57 |
18573875
|
Increased insulin action in SKIP heterozygous knockout mice.
|
58 |
18573875
|
Previous studies showed that SKIP negatively regulates insulin-induced phosphatidylinositol 3-kinase signaling (Ijuin and Takenawa, Mol.
|
59 |
18573875
|
We now have generated mice with a targeted mutation of the mouse ortholog of the human SKIP gene, Pps.
|
60 |
18573875
|
Adult heterozygous Pps mutant mice show increased insulin sensitivity and reduced diet-induced obesity with increased Akt/protein kinase B (PKB) phosphorylation in skeletal muscle but not in adipose tissue.
|
61 |
18573875
|
The insulin-induced uptake of 2-deoxyglucose into the isolated soleus muscle was significantly enhanced in Pps mutant mice.
|
62 |
18573875
|
Furthermore, in vitro knockdown studies in L6 myoblast cells revealed that reduction of SKIP expression level increased insulin-stimulated Akt/PKB phosphorylation and 2-deoxyglucose uptake.
|
63 |
18573875
|
These results imply that SKIP regulates insulin signaling in skeletal muscle.
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64 |
18573875
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Thus, SKIP may be a promising pharmacologic target for the treatment of insulin resistance and diabetes.
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65 |
19272022
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Growth factor or insulin stimulation induces a canonical cascade resulting in the transient phosphorylation of PtdIns(4,5)P(2) by PI3K (phosphoinositide 3-kinase) to form PtdIns(3,4,5)P(3), which is rapidly dephosphorylated either by PTEN (phosphatase and tensin homologue deleted on chromosome 10) back to PtdIns(4,5)P(2), or by the 5-ptases (inositol polyphosphate 5-phosphatases), generating PtdIns(3,4)P(2).
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66 |
19272022
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Futhermore, the 5-ptases SHIP [SH2 (Src homology 2)-domain-containing inositol phosphatase] 2, SKIP (skeletal muscle- and kidney-enriched inositol phosphatase) and 72-5ptase (72 kDa 5-ptase)/Type IV/Inpp5e (inositol polyphosphate 5-phosphatase E) are implicated in negatively regulating insulin signalling and glucose homoeostasis in specific tissues.
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67 |
19272022
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SHIP2 polymorphisms are associated with a predisposition to insulin resistance.
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68 |
19272022
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In addition, 5-ptases such as SHIP1, SHIP2 and 72-5ptase/Type IV/Inpp5e regulate macrophage phagocytosis, and SHIP1 also controls haemopoietic cell proliferation.
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