# |
PMID |
Sentence |
1 |
9033268
|
We have examined the immunolocalization of AGEs and AGE-R components R1 and R2 in the retinal vasculature at 2, 4, and 8 months after STZ-induced diabetes as well as in nondiabetic rats infused with AGE bovine serum albumin for 2 weeks.
|
2 |
9033268
|
Using polyclonal or monoclonal anti-AGE antibodies and polyclonal antibodies to recombinant AGE-R1 and AGE-R2, immunoreactivity (IR) was examined in the complete retinal vascular tree after isolation by trypsin digestion.
|
3 |
9846883
|
AGE-binding receptors are: scavenger receptors types I and II, the receptor for advanced glycation endproducts (RAGE), oligosaccharyl transferase-48 (OST-48, AGE-R1), 80K-H phosphoprotein (AGE-R2) and galectin-3 (AGE-R3).
|
4 |
9846883
|
Scavenger receptors have only been shown to bind proteins modified by AGE to a much higher extent than found in vivo. 80K-H phosphoprotein is involved in FGFR3 signal transduction to MAP kinase, and may be involved in AGE-receptor signal transduction.
|
5 |
10080935
|
The AGE-receptor complex, originally described as p60 and p90, has been characterised in hemopoietic cells and the component proteins identified and designated AGE-R1, -R2 and -R3.
|
6 |
10080935
|
Western blotting of whole cell and PM fractions, before and after exposure to AGE-BSA, revealed that AGE-R1, -R2 and -R3 are subject to upregulation upon exposure to their ligand, a phenomenon which was also demonstrated by immunofluorescence of non-permeabilised cells. mRNA expression of each AGE-receptor component was apparent in HUVECs, with the AGE-R2 and -R3 gene expression being upregulated upon exposure to AGEs in a time-dependent manner.
|
7 |
10919268
|
Among the different IL-1beta-induced genes, there was an early and transient increase in phospholipase D-1 (PLD1) expression.
|
8 |
10919268
|
PLD1 can induce phosphatidic acid formation and subsequent activation of protein kinase C, a process which stimulates insulin release.
|
9 |
10919268
|
By using different combinations of primers and RT-PCR, we observed that IL-1beta induces an early increase (2 and 6 h) in the expression of both alternatively spliced isoforms of PLD1 (PLD1alpha and 1b).
|
10 |
10919268
|
NG-methyl-L-arginine (LMA), a blocker of the inducible form of nitric oxide synthase (iNOS), prevented this late inhibitory effect of IL-1beta, suggesting that IL-1beta-induced decrease in PLD1a expression is NO-mediated.
|
11 |
10919268
|
IL-1beta induced an early (2-6 h) and sustained (16-24 h) increase in PLD1a mRNA expression in insulin-producing RINm5F cells.
|
12 |
10919268
|
RINm5F cells, but not primary beta-cells, expressed PLD2, and the expression of this gene was not affected by IL-1beta.
|
13 |
10919268
|
In conclusion, we have shown that the cytokine IL-1beta regulates PLD1 expression in primary and clonal beta-cells.
|
14 |
10919268
|
The early induction of PLD1 probably contributes to the early stimulatory effects of IL-1beta on islet insulin release.
|
15 |
10919268
|
Among the different IL-1beta-induced genes, there was an early and transient increase in phospholipase D-1 (PLD1) expression.
|
16 |
10919268
|
PLD1 can induce phosphatidic acid formation and subsequent activation of protein kinase C, a process which stimulates insulin release.
|
17 |
10919268
|
By using different combinations of primers and RT-PCR, we observed that IL-1beta induces an early increase (2 and 6 h) in the expression of both alternatively spliced isoforms of PLD1 (PLD1alpha and 1b).
|
18 |
10919268
|
NG-methyl-L-arginine (LMA), a blocker of the inducible form of nitric oxide synthase (iNOS), prevented this late inhibitory effect of IL-1beta, suggesting that IL-1beta-induced decrease in PLD1a expression is NO-mediated.
|
19 |
10919268
|
IL-1beta induced an early (2-6 h) and sustained (16-24 h) increase in PLD1a mRNA expression in insulin-producing RINm5F cells.
|
20 |
10919268
|
RINm5F cells, but not primary beta-cells, expressed PLD2, and the expression of this gene was not affected by IL-1beta.
|
21 |
10919268
|
In conclusion, we have shown that the cytokine IL-1beta regulates PLD1 expression in primary and clonal beta-cells.
|
22 |
10919268
|
The early induction of PLD1 probably contributes to the early stimulatory effects of IL-1beta on islet insulin release.
|
23 |
10919268
|
Among the different IL-1beta-induced genes, there was an early and transient increase in phospholipase D-1 (PLD1) expression.
|
24 |
10919268
|
PLD1 can induce phosphatidic acid formation and subsequent activation of protein kinase C, a process which stimulates insulin release.
|
25 |
10919268
|
By using different combinations of primers and RT-PCR, we observed that IL-1beta induces an early increase (2 and 6 h) in the expression of both alternatively spliced isoforms of PLD1 (PLD1alpha and 1b).
|
26 |
10919268
|
NG-methyl-L-arginine (LMA), a blocker of the inducible form of nitric oxide synthase (iNOS), prevented this late inhibitory effect of IL-1beta, suggesting that IL-1beta-induced decrease in PLD1a expression is NO-mediated.
|
27 |
10919268
|
IL-1beta induced an early (2-6 h) and sustained (16-24 h) increase in PLD1a mRNA expression in insulin-producing RINm5F cells.
|
28 |
10919268
|
RINm5F cells, but not primary beta-cells, expressed PLD2, and the expression of this gene was not affected by IL-1beta.
|
29 |
10919268
|
In conclusion, we have shown that the cytokine IL-1beta regulates PLD1 expression in primary and clonal beta-cells.
|
30 |
10919268
|
The early induction of PLD1 probably contributes to the early stimulatory effects of IL-1beta on islet insulin release.
|
31 |
10919268
|
Among the different IL-1beta-induced genes, there was an early and transient increase in phospholipase D-1 (PLD1) expression.
|
32 |
10919268
|
PLD1 can induce phosphatidic acid formation and subsequent activation of protein kinase C, a process which stimulates insulin release.
|
33 |
10919268
|
By using different combinations of primers and RT-PCR, we observed that IL-1beta induces an early increase (2 and 6 h) in the expression of both alternatively spliced isoforms of PLD1 (PLD1alpha and 1b).
|
34 |
10919268
|
NG-methyl-L-arginine (LMA), a blocker of the inducible form of nitric oxide synthase (iNOS), prevented this late inhibitory effect of IL-1beta, suggesting that IL-1beta-induced decrease in PLD1a expression is NO-mediated.
|
35 |
10919268
|
IL-1beta induced an early (2-6 h) and sustained (16-24 h) increase in PLD1a mRNA expression in insulin-producing RINm5F cells.
|
36 |
10919268
|
RINm5F cells, but not primary beta-cells, expressed PLD2, and the expression of this gene was not affected by IL-1beta.
|
37 |
10919268
|
In conclusion, we have shown that the cytokine IL-1beta regulates PLD1 expression in primary and clonal beta-cells.
|
38 |
10919268
|
The early induction of PLD1 probably contributes to the early stimulatory effects of IL-1beta on islet insulin release.
|
39 |
10919268
|
Among the different IL-1beta-induced genes, there was an early and transient increase in phospholipase D-1 (PLD1) expression.
|
40 |
10919268
|
PLD1 can induce phosphatidic acid formation and subsequent activation of protein kinase C, a process which stimulates insulin release.
|
41 |
10919268
|
By using different combinations of primers and RT-PCR, we observed that IL-1beta induces an early increase (2 and 6 h) in the expression of both alternatively spliced isoforms of PLD1 (PLD1alpha and 1b).
|
42 |
10919268
|
NG-methyl-L-arginine (LMA), a blocker of the inducible form of nitric oxide synthase (iNOS), prevented this late inhibitory effect of IL-1beta, suggesting that IL-1beta-induced decrease in PLD1a expression is NO-mediated.
|
43 |
10919268
|
IL-1beta induced an early (2-6 h) and sustained (16-24 h) increase in PLD1a mRNA expression in insulin-producing RINm5F cells.
|
44 |
10919268
|
RINm5F cells, but not primary beta-cells, expressed PLD2, and the expression of this gene was not affected by IL-1beta.
|
45 |
10919268
|
In conclusion, we have shown that the cytokine IL-1beta regulates PLD1 expression in primary and clonal beta-cells.
|
46 |
10919268
|
The early induction of PLD1 probably contributes to the early stimulatory effects of IL-1beta on islet insulin release.
|
47 |
11334430
|
Four putative AGE receptors (RAGEs), AGE-R1, AGE-R2, and AGE-R3 have been described.
|
48 |
11689472
|
Accelerated diabetic glomerulopathy in galectin-3/AGE receptor 3 knockout mice.
|
49 |
11689472
|
We investigated the role of galectin-3, a multifunctional lectin with (anti)adhesive and growth-regulating properties, as an AGE receptor and its contribution to the development of diabetic glomerular disease, using a knockout mouse model.
|
50 |
11689472
|
This was associated with a more marked renal/glomerular AGE accumulation, indicating it was attributable to the lack of galectin-3 AGE receptor function.
|
51 |
11689472
|
The galectin-3-deficient genotype was associated with reduced expression of receptors implicated in AGE removal (macrophage scavenger receptor A and AGE-R1) and increased expression of those mediating cell activation (RAGE and AGE-R2).
|
52 |
11689472
|
These results show that the galectin-3-regulated AGE receptor pathway is operating in vivo and protects toward AGE-induced tissue injury in contrast to that through RAGE.
|
53 |
12874444
|
The AGE receptors include RAGE, the macrophage scavenger receptors, OST-48 (AGE-R1), 80K-H (AGE-R2), and galectin-3 (AGE-R3).
|
54 |
12874444
|
The lack of transmembrane anchor sequence or signal peptide suggests that it is associated with other AGE receptors, possibly AGE-R1 and AGE-R2, to form an AGE-receptor complex, rather than playing an independent role.
|
55 |
12874444
|
This was associated with a more marked renal/glomerular AGE accumulation, suggesting that it was attributable to the lack of galectin-3 AGE-receptor function.
|
56 |
12874444
|
The AGE receptors include RAGE, the macrophage scavenger receptors, OST-48 (AGE-R1), 80K-H (AGE-R2), and galectin-3 (AGE-R3).
|
57 |
12874444
|
The lack of transmembrane anchor sequence or signal peptide suggests that it is associated with other AGE receptors, possibly AGE-R1 and AGE-R2, to form an AGE-receptor complex, rather than playing an independent role.
|
58 |
12874444
|
This was associated with a more marked renal/glomerular AGE accumulation, suggesting that it was attributable to the lack of galectin-3 AGE-receptor function.
|
59 |
16648883
|
This process appears to be tightly controlled by AGE clearance receptor complexes containing AGE-R1, AGE-R2 and AGE-R3 and scavenger receptors such as CD36, SR-AII and SR-BI.
|
60 |
18541525
|
Targeting of PED/PEA-15 molecular interaction with phospholipase D1 enhances insulin sensitivity in skeletal muscle cells.
|
61 |
18541525
|
In intact cells and in transgenic animal models, PED/PEA-15 overexpression impairs insulin regulation of glucose transport, and this is mediated by its interaction with the C-terminal D4 domain of phospholipase D1 (PLD1) and the consequent increase of protein kinase C-alpha activity.
|
62 |
18541525
|
Here we show that interfering with the interaction of PED/PEA-15 with PLD1 in L6 skeletal muscle cells overexpressing PED/PEA-15 (L6(PED/PEA-15)) restores insulin sensitivity.
|
63 |
18541525
|
When loaded into L6(PED/PEA-15) cells and in myocytes derived from PED/PEA-15-overexpressing transgenic mice, PED-(1-24) abrogates the PED/PEA-15-PLD1 interaction and reduces protein kinase C-alpha activity to levels similar to controls.
|
64 |
18541525
|
All these findings suggest that disruption of the PED/PEA-15-PLD1 molecular interaction enhances insulin sensitivity in skeletal muscle cells and indicate that PED/PEA-15 as an important target for type 2 diabetes.
|
65 |
18541525
|
Targeting of PED/PEA-15 molecular interaction with phospholipase D1 enhances insulin sensitivity in skeletal muscle cells.
|
66 |
18541525
|
In intact cells and in transgenic animal models, PED/PEA-15 overexpression impairs insulin regulation of glucose transport, and this is mediated by its interaction with the C-terminal D4 domain of phospholipase D1 (PLD1) and the consequent increase of protein kinase C-alpha activity.
|
67 |
18541525
|
Here we show that interfering with the interaction of PED/PEA-15 with PLD1 in L6 skeletal muscle cells overexpressing PED/PEA-15 (L6(PED/PEA-15)) restores insulin sensitivity.
|
68 |
18541525
|
When loaded into L6(PED/PEA-15) cells and in myocytes derived from PED/PEA-15-overexpressing transgenic mice, PED-(1-24) abrogates the PED/PEA-15-PLD1 interaction and reduces protein kinase C-alpha activity to levels similar to controls.
|
69 |
18541525
|
All these findings suggest that disruption of the PED/PEA-15-PLD1 molecular interaction enhances insulin sensitivity in skeletal muscle cells and indicate that PED/PEA-15 as an important target for type 2 diabetes.
|
70 |
20490454
|
DDOST, PRKCSH and LGALS3, which encode AGE-receptors 1, 2 and 3, respectively, are not associated with diabetic nephropathy in type 1 diabetes.
|
71 |
20714510
|
Residues 762-801 of PLD1 mediate the interaction with PED/PEA15.
|
72 |
20714510
|
The interaction of Phospholipase D1 (PLD1) by its C-terminal domain D4 with PED/PEA15 has been indicated as a target for type 2 diabetes.
|
73 |
20714510
|
PED/PEA15 is overexpressed in several tissues of individuals affected by type 2 diabetes and its overexpression in intact cells and in transgenic animal models impairs insulin regulation of glucose transport by a mechanism mediated by the interaction with D4 and the consequent increase of protein kinase C-alpha activity.
|
74 |
20714510
|
Expression of D4 or administration of a peptide mimicking the PED/PEA15 region involved in this interaction to cells stably overexpressing PED/PEA15 reduces its interaction with PLD1, thereby lowering PKC-alpha activation and restoring normal glucose transport mediated by PKC-zeta.
|
75 |
20714510
|
By using D4 deletion mutants, we have restricted the PLD1 region involved in PED/PEA15 interaction to an N-terminal fragment named D4alpha (residues 712-818).
|
76 |
20714510
|
This region binds PED/PEA15 with the same efficacy as D4 (K(D) approximately 0.7 microM) and, when transfected in different PED/PEA15-overexpressing cells, it is able to reduce PKC-alpha activity and to restore the sensitivity of PKC-zeta to insulin stimulation, independently of the PI3K/Akt signalling.
|
77 |
20714510
|
We also show that the effective disruption of the PED/PEA15-PLD1 interaction can restore the normal ERK1/2 signalling.
|
78 |
20714510
|
Residues 762-801 of PLD1 mediate the interaction with PED/PEA15.
|
79 |
20714510
|
The interaction of Phospholipase D1 (PLD1) by its C-terminal domain D4 with PED/PEA15 has been indicated as a target for type 2 diabetes.
|
80 |
20714510
|
PED/PEA15 is overexpressed in several tissues of individuals affected by type 2 diabetes and its overexpression in intact cells and in transgenic animal models impairs insulin regulation of glucose transport by a mechanism mediated by the interaction with D4 and the consequent increase of protein kinase C-alpha activity.
|
81 |
20714510
|
Expression of D4 or administration of a peptide mimicking the PED/PEA15 region involved in this interaction to cells stably overexpressing PED/PEA15 reduces its interaction with PLD1, thereby lowering PKC-alpha activation and restoring normal glucose transport mediated by PKC-zeta.
|
82 |
20714510
|
By using D4 deletion mutants, we have restricted the PLD1 region involved in PED/PEA15 interaction to an N-terminal fragment named D4alpha (residues 712-818).
|
83 |
20714510
|
This region binds PED/PEA15 with the same efficacy as D4 (K(D) approximately 0.7 microM) and, when transfected in different PED/PEA15-overexpressing cells, it is able to reduce PKC-alpha activity and to restore the sensitivity of PKC-zeta to insulin stimulation, independently of the PI3K/Akt signalling.
|
84 |
20714510
|
We also show that the effective disruption of the PED/PEA15-PLD1 interaction can restore the normal ERK1/2 signalling.
|
85 |
20714510
|
Residues 762-801 of PLD1 mediate the interaction with PED/PEA15.
|
86 |
20714510
|
The interaction of Phospholipase D1 (PLD1) by its C-terminal domain D4 with PED/PEA15 has been indicated as a target for type 2 diabetes.
|
87 |
20714510
|
PED/PEA15 is overexpressed in several tissues of individuals affected by type 2 diabetes and its overexpression in intact cells and in transgenic animal models impairs insulin regulation of glucose transport by a mechanism mediated by the interaction with D4 and the consequent increase of protein kinase C-alpha activity.
|
88 |
20714510
|
Expression of D4 or administration of a peptide mimicking the PED/PEA15 region involved in this interaction to cells stably overexpressing PED/PEA15 reduces its interaction with PLD1, thereby lowering PKC-alpha activation and restoring normal glucose transport mediated by PKC-zeta.
|
89 |
20714510
|
By using D4 deletion mutants, we have restricted the PLD1 region involved in PED/PEA15 interaction to an N-terminal fragment named D4alpha (residues 712-818).
|
90 |
20714510
|
This region binds PED/PEA15 with the same efficacy as D4 (K(D) approximately 0.7 microM) and, when transfected in different PED/PEA15-overexpressing cells, it is able to reduce PKC-alpha activity and to restore the sensitivity of PKC-zeta to insulin stimulation, independently of the PI3K/Akt signalling.
|
91 |
20714510
|
We also show that the effective disruption of the PED/PEA15-PLD1 interaction can restore the normal ERK1/2 signalling.
|
92 |
20714510
|
Residues 762-801 of PLD1 mediate the interaction with PED/PEA15.
|
93 |
20714510
|
The interaction of Phospholipase D1 (PLD1) by its C-terminal domain D4 with PED/PEA15 has been indicated as a target for type 2 diabetes.
|
94 |
20714510
|
PED/PEA15 is overexpressed in several tissues of individuals affected by type 2 diabetes and its overexpression in intact cells and in transgenic animal models impairs insulin regulation of glucose transport by a mechanism mediated by the interaction with D4 and the consequent increase of protein kinase C-alpha activity.
|
95 |
20714510
|
Expression of D4 or administration of a peptide mimicking the PED/PEA15 region involved in this interaction to cells stably overexpressing PED/PEA15 reduces its interaction with PLD1, thereby lowering PKC-alpha activation and restoring normal glucose transport mediated by PKC-zeta.
|
96 |
20714510
|
By using D4 deletion mutants, we have restricted the PLD1 region involved in PED/PEA15 interaction to an N-terminal fragment named D4alpha (residues 712-818).
|
97 |
20714510
|
This region binds PED/PEA15 with the same efficacy as D4 (K(D) approximately 0.7 microM) and, when transfected in different PED/PEA15-overexpressing cells, it is able to reduce PKC-alpha activity and to restore the sensitivity of PKC-zeta to insulin stimulation, independently of the PI3K/Akt signalling.
|
98 |
20714510
|
We also show that the effective disruption of the PED/PEA15-PLD1 interaction can restore the normal ERK1/2 signalling.
|
99 |
22820249
|
Profound conformational changes of PED/PEA-15 in ERK2 complex revealed by NMR backbone dynamics.
|
100 |
22820249
|
PED/PEA-15 is a small, non-catalytic, DED containing protein that is widely expressed in different tissues and highly conserved among mammals.
|
101 |
22820249
|
PED/PEA-15 has been found to interact with several protein targets in various pathways, including FADD and procaspase-8 (apoptosis), ERK1/2 (cell cycle entry), and PLD1/2 (diabetes).
|
102 |
22820249
|
In this research, we have studied the PED/PEA-15 in a complex with ERK2, a MAP kinase, using NMR spectroscopic techniques.
|
103 |
22820249
|
MAP Kinase signaling pathways are involved in the regulation of many cellular functions, including cell proliferation, differentiation, apoptosis and survival.
|
104 |
22820249
|
Previous studies have shown that PED/PEA-15 complexes with ERK2 in the cytoplasm and prevents redistribution into the nucleus.
|
105 |
22820249
|
Here we report NMR chemical shift perturbation and backbone dynamic studies at the fast ps-ns timescale of PED/PEA-15, in its free form and in the complex with ERK2.
|
106 |
22820249
|
These analyses characterize motions and conformational changes involved in ERK2 recognition and binding that orchestrate the reorganization of the DED and immobilization of the C-terminal tail.
|
107 |
23585839
|
Adenoviral gene transfer of PLD1-D4 enhances insulin sensitivity in mice by disrupting phospholipase D1 interaction with PED/PEA-15.
|
108 |
23585839
|
Over-expression of phosphoprotein enriched in diabetes/phosphoprotein enriched in astrocytes (PED/PEA-15) causes insulin resistance by interacting with the D4 domain of phospholipase D1 (PLD1).
|
109 |
23585839
|
Indeed, the disruption of this association restores insulin sensitivity in cultured cells over-expressing PED/PEA-15.
|
110 |
23585839
|
Whether the displacement of PLD1 from PED/PEA-15 improves insulin sensitivity in vivo has not been explored yet.
|
111 |
23585839
|
In this work we show that treatment with a recombinant adenoviral vector containing the human D4 cDNA (Ad-D4) restores normal glucose homeostasis in transgenic mice overexpressing PED/PEA-15 (Tg ped/pea-15) by improving both insulin sensitivity and secretion.
|
112 |
23585839
|
In skeletal muscle of these mice, D4 over-expression inhibited PED/PEA-15-PLD1 interaction, decreased Protein Kinase C alpha activation and restored insulin induced Protein Kinase C zeta activation, leading to amelioration of insulin-dependent glucose uptake.
|
113 |
23585839
|
Adenoviral gene transfer of PLD1-D4 enhances insulin sensitivity in mice by disrupting phospholipase D1 interaction with PED/PEA-15.
|
114 |
23585839
|
Over-expression of phosphoprotein enriched in diabetes/phosphoprotein enriched in astrocytes (PED/PEA-15) causes insulin resistance by interacting with the D4 domain of phospholipase D1 (PLD1).
|
115 |
23585839
|
Indeed, the disruption of this association restores insulin sensitivity in cultured cells over-expressing PED/PEA-15.
|
116 |
23585839
|
Whether the displacement of PLD1 from PED/PEA-15 improves insulin sensitivity in vivo has not been explored yet.
|
117 |
23585839
|
In this work we show that treatment with a recombinant adenoviral vector containing the human D4 cDNA (Ad-D4) restores normal glucose homeostasis in transgenic mice overexpressing PED/PEA-15 (Tg ped/pea-15) by improving both insulin sensitivity and secretion.
|
118 |
23585839
|
In skeletal muscle of these mice, D4 over-expression inhibited PED/PEA-15-PLD1 interaction, decreased Protein Kinase C alpha activation and restored insulin induced Protein Kinase C zeta activation, leading to amelioration of insulin-dependent glucose uptake.
|