# |
PMID |
Sentence |
1 |
8522056
|
Enhanced insulin action due to targeted GLUT4 overexpression exclusively in muscle.
|
2 |
8522056
|
Dysregulation of GLUT4, the insulin-responsive glucose transporter, is associated with insulin resistance in skeletal muscle.
|
3 |
8522056
|
Although skeletal muscle is the major target of insulin action, muscle GLUT4 has not been linked causally to whole-body insulin sensitivity and regulation of glucose homeostasis.
|
4 |
8522056
|
We demonstrate that restricted overexpression of GLUT4 in fast-twitch skeletal muscles of myosin light chain (MLC)-GLUT4 transgenic mice induces a 2.5-fold increase in insulin-stimulated 2-deoxyglucose uptake in transgene-overexpressing cells.
|
5 |
8583700
|
The following markers of myocardial injury were measured in these patients: troponin T (TnT), creatine kinase (CK), myoglobin (Mb), and myosin light chain-1 (MLC-1).
|
6 |
8721335
|
The following markers of myocardial injury were measured in these patients: myocardial TnT, creatine kinase (CK), myoglobin (Mb), and myosin light chain-1 (MCL-1).
|
7 |
9005973
|
The regulatory myosin light chain (MLC) is phosphorylated in cardiac muscle by Ca2+/calmodulin-dependent MLC kinase (MLCK) and is considered to play a modulatory role in the activation of myofibrillar adenosine triphosphatase (ATPase) and the process of force generation.
|
8 |
9005973
|
Changes in the relative MLC and MLCK protein contents were measured by electrophoresis and immunoblot assay, whereas phosphorylated and unphosphorylated MLCs were separated on 10% acrylamide/urea gel and identified by Western blot.
|
9 |
9005973
|
MLC and MLCK contents were decreased markedly (40% to 45%) and MLC phosphorylation was decreased significantly (30% to 45%) in the diabetic rat heart homogenate in comparison to control values.
|
10 |
9005973
|
The changes in MLC and MLCK content in diabetic heart were partially reversible, whereas changes in MLC phosphorylation were normalized upon treatment with insulin.
|
11 |
9005973
|
These results suggest that decreased protein contents of MLC and MLCK and phosphorylation of MLC may contribute to the depression of cardiac myofibriliar ATPase activity and heart dysfunction in diabetic cardiomyopathy.
|
12 |
9005973
|
The regulatory myosin light chain (MLC) is phosphorylated in cardiac muscle by Ca2+/calmodulin-dependent MLC kinase (MLCK) and is considered to play a modulatory role in the activation of myofibrillar adenosine triphosphatase (ATPase) and the process of force generation.
|
13 |
9005973
|
Changes in the relative MLC and MLCK protein contents were measured by electrophoresis and immunoblot assay, whereas phosphorylated and unphosphorylated MLCs were separated on 10% acrylamide/urea gel and identified by Western blot.
|
14 |
9005973
|
MLC and MLCK contents were decreased markedly (40% to 45%) and MLC phosphorylation was decreased significantly (30% to 45%) in the diabetic rat heart homogenate in comparison to control values.
|
15 |
9005973
|
The changes in MLC and MLCK content in diabetic heart were partially reversible, whereas changes in MLC phosphorylation were normalized upon treatment with insulin.
|
16 |
9005973
|
These results suggest that decreased protein contents of MLC and MLCK and phosphorylation of MLC may contribute to the depression of cardiac myofibriliar ATPase activity and heart dysfunction in diabetic cardiomyopathy.
|
17 |
9005973
|
The regulatory myosin light chain (MLC) is phosphorylated in cardiac muscle by Ca2+/calmodulin-dependent MLC kinase (MLCK) and is considered to play a modulatory role in the activation of myofibrillar adenosine triphosphatase (ATPase) and the process of force generation.
|
18 |
9005973
|
Changes in the relative MLC and MLCK protein contents were measured by electrophoresis and immunoblot assay, whereas phosphorylated and unphosphorylated MLCs were separated on 10% acrylamide/urea gel and identified by Western blot.
|
19 |
9005973
|
MLC and MLCK contents were decreased markedly (40% to 45%) and MLC phosphorylation was decreased significantly (30% to 45%) in the diabetic rat heart homogenate in comparison to control values.
|
20 |
9005973
|
The changes in MLC and MLCK content in diabetic heart were partially reversible, whereas changes in MLC phosphorylation were normalized upon treatment with insulin.
|
21 |
9005973
|
These results suggest that decreased protein contents of MLC and MLCK and phosphorylation of MLC may contribute to the depression of cardiac myofibriliar ATPase activity and heart dysfunction in diabetic cardiomyopathy.
|
22 |
9005973
|
The regulatory myosin light chain (MLC) is phosphorylated in cardiac muscle by Ca2+/calmodulin-dependent MLC kinase (MLCK) and is considered to play a modulatory role in the activation of myofibrillar adenosine triphosphatase (ATPase) and the process of force generation.
|
23 |
9005973
|
Changes in the relative MLC and MLCK protein contents were measured by electrophoresis and immunoblot assay, whereas phosphorylated and unphosphorylated MLCs were separated on 10% acrylamide/urea gel and identified by Western blot.
|
24 |
9005973
|
MLC and MLCK contents were decreased markedly (40% to 45%) and MLC phosphorylation was decreased significantly (30% to 45%) in the diabetic rat heart homogenate in comparison to control values.
|
25 |
9005973
|
The changes in MLC and MLCK content in diabetic heart were partially reversible, whereas changes in MLC phosphorylation were normalized upon treatment with insulin.
|
26 |
9005973
|
These results suggest that decreased protein contents of MLC and MLCK and phosphorylation of MLC may contribute to the depression of cardiac myofibriliar ATPase activity and heart dysfunction in diabetic cardiomyopathy.
|
27 |
9005973
|
The regulatory myosin light chain (MLC) is phosphorylated in cardiac muscle by Ca2+/calmodulin-dependent MLC kinase (MLCK) and is considered to play a modulatory role in the activation of myofibrillar adenosine triphosphatase (ATPase) and the process of force generation.
|
28 |
9005973
|
Changes in the relative MLC and MLCK protein contents were measured by electrophoresis and immunoblot assay, whereas phosphorylated and unphosphorylated MLCs were separated on 10% acrylamide/urea gel and identified by Western blot.
|
29 |
9005973
|
MLC and MLCK contents were decreased markedly (40% to 45%) and MLC phosphorylation was decreased significantly (30% to 45%) in the diabetic rat heart homogenate in comparison to control values.
|
30 |
9005973
|
The changes in MLC and MLCK content in diabetic heart were partially reversible, whereas changes in MLC phosphorylation were normalized upon treatment with insulin.
|
31 |
9005973
|
These results suggest that decreased protein contents of MLC and MLCK and phosphorylation of MLC may contribute to the depression of cardiac myofibriliar ATPase activity and heart dysfunction in diabetic cardiomyopathy.
|
32 |
9032107
|
We then investigated basal myosin light chain 20 (MLC) phosphorylation, which plays a key role in platelet shape change and aggregation, using a monoclonal antibody against a phosphorylation site (serine 19 residue) in the MLC molecule in platelets from these patients.
|
33 |
9032107
|
Standard calibration curves obtained from purified MLC or the phosphorylated form of myosin light chain 20 (MLC-P) were linear within the range of 0-150 ng for MLC and 0-3 ng for MLC-P.
|
34 |
9032107
|
We then investigated basal myosin light chain 20 (MLC) phosphorylation, which plays a key role in platelet shape change and aggregation, using a monoclonal antibody against a phosphorylation site (serine 19 residue) in the MLC molecule in platelets from these patients.
|
35 |
9032107
|
Standard calibration curves obtained from purified MLC or the phosphorylated form of myosin light chain 20 (MLC-P) were linear within the range of 0-150 ng for MLC and 0-3 ng for MLC-P.
|
36 |
9073547
|
Activation of CD8+ T lymphocytes in insulin-dependent diabetes mellitus.
|
37 |
9073547
|
Insulin-dependent diabetes mellitus (IDDM) is a T-cell-mediated autoimmune disease directed against the insulin-secreting beta cells of the islets of Langerhans of the pancreas.
|
38 |
9073547
|
We have previously shown that in organ-specific autoimmune diseases, Graves' disease (GD), and IDDM, the antigen that is specific for each of these disorders (i.e., TSH receptor for GD, glutamic acid decarboxylase-65 (GAD65) for IDDM) does not activate the disease-specific CD8+ cells as fully as CD8+ cells from normal persons.
|
39 |
9073547
|
In order to identify the specific antigen responsible for triggering or maintaining autoimmunity in patients afflicted with the disease, we have studied the effects of islet (beta) cell-specific antigens GAD65, insulin, pancreatic antigen (P69), T cell epitope 69 (Tep69), and a milk-derived bovine serum albumin (BSA)-peptide-ABBOS (pre-BSA positions 157-169) on the activation of CD8+ T lymphocytes in IDDM patients.
|
40 |
9073547
|
We compared the patterns of T cells activation with those mediated by an irrelevant peptide antigen, P348 (amino-terminal region of human cardiac myosin light chain-1), and also tetanus toxoid.
|
41 |
9073547
|
We also studied the responses of CD8+ T lymphocytes to these IDDM-relevant and -irrelevant antigens in Hashimoto's thyroiditis patients (HT), rheumatoid arthritis patients (RA), and normal control subjects (N) to compare the pattern of responses in the other autoimmune diseases.
|
42 |
9073547
|
When the response of CD8+ T lymphocytes of IDDM patients to each of the IDDM-relevant antigens was compared to that of the irrelevant antigen, only GAD65 and ABBOS showed a significantly reduced activation compared to P348 and tetanus toxoid.
|
43 |
9073547
|
Moreover, CD8+ T lymphocytes of IDDM patients showed a significantly lower activation by GAD65 than those from N, HT, and RA.
|
44 |
9073547
|
In conclusion, our data suggest that CD8+ T lymphocytes of IDDM patients but not those from N, HT, and RA groups have specifically reduced potential for activation in response to GAD65 but not to insulin, P69, and Tep69, whereas ABBOS exerts a less well-defined reductive effect on the activation of CD8+ lymphocytes of IDDM patients.
|
45 |
9073547
|
Since CD8+ cells have been shown to contain suppressor activity, our data support the notion that a disease-specific defect in GAD65 autoantigenic induction of suppressor T lymphocytes may be important in the pathogenesis of IDDM.
|
46 |
10102694
|
Prevention of insulin resistance and diabetes in mice heterozygous for GLUT4 ablation by transgenic complementation of GLUT4 in skeletal muscle.
|
47 |
10102694
|
This is underscored by a new mouse model of type 2 diabetes generated by genetic disruption of one allele of glucose transporter 4 (GLUT4+/-), the insulin-responsive glucose transporter in muscle and adipose tissue.
|
48 |
10102694
|
To determine whether development of the diabetic phenotype in GLUT4+/- mice can be forestalled by preventing the onset of impaired muscle GLUT4 expression and glucose utilization, standard genetic crossing was performed to introduce a fast-twitch muscle-specific GLUT4 transgene--the myosin light chain (MLC) promoter-driven transgene MLC-GLUT4--into GLUT4+/- mice (MLC-GLUT4+/- mice).
|
49 |
10340552
|
Thus, C2C12 mouse myoblast cells were stably transfected with a chimeric gene obtained by linking the myosin-light chain 1 (MLC1) promoter to the human proinsulin gene, containing genetically engineered furin endoprotease cleavage sites (MLC1/Insm).
|
50 |
10866046
|
Synergism of protein kinase A, protein kinase C, and myosin light-chain kinase in the secretory cascade of the pancreatic beta-cell.
|
51 |
10866046
|
Protein phosphorylation by myosin light-chain kinase (MLCK), protein kinase A, and protein kinase C (PKC) plays a positive role in insulin secretion from the pancreatic beta-cell.
|
52 |
10866046
|
To investigate the underlying mechanisms, we examined intracellular distribution of the insulin granules and MLCK by immunofluorescence and immunoelectron microscopies and also investigated intracellular traffic of the granules in cultured beta-cells (MIN6) by video microscopy.
|
53 |
10866046
|
Considerable parts of MLCK immunoreactivity were colocalized with the insulin granules.
|
54 |
10866046
|
Subcellular fractionation of MIN6 cell extracts revealed that myosin light chain (MLC) may be distributed with the insulin-rich fractions, and immunofluorescence staining using specific antibodies against mono- and diphosphorylated MLCs depicted presence of phosphorylated MLCs in the cytoplasm, in part, with colocalization with the insulin granules.
|
55 |
10866046
|
Activation of PKC by 12-O-tetradecanoyl-phorbol 13-acetate (TPA) caused a shift of both insulin granules and MLCK to the cell periphery, which was not reproduced by the adenylate cyclase activator, forskolin.
|
56 |
10866046
|
Costimulation of the beta-cell by TPA and forskolin induced drastic translocation of insulin granules and MLCK to the cell periphery, resulting in enormous potentiation of insulin release.
|
57 |
11229421
|
Hyperglycemia may contribute to increase platelet aggregation through enhancement of oxidative stress, increased nitric oxide (NO) destruction, and increased myosin light-chain (MLC) phosphorylation (MLC-P).
|
58 |
11919159
|
RhoA- and RhoD-dependent regulatory switch of Galpha subunit signaling by PAR-1 receptors in cellular invasion.
|
59 |
11919159
|
We recently reported that thrombin inhibits cellular invasion induced by src, hepatocyte growth factor (HGF), and leptin in kidney and colonic epithelial cells via predominant activation of the pertussis toxin (PTx) -sensitive G-proteins Galphao/Galphai.
|
60 |
11919159
|
We provide pharmacological and biochemical evidence that in the presence of PTx, PAR-1 induced cellular invasion through Galpha12/Galpha13- and RhoA/Rho kinase (ROCK) -dependent signaling.
|
61 |
11919159
|
However, inhibition of the endogenous small GTPase RhoA by the C3 exoenzyme, dominant-negative N19-RhoA, activated G26V-RhoD, and activators of the nitric oxide/cGMP pathways conferred invasive activity to PAR-1 via a signaling cascade using Galphaq, phospholipase C (PLC), Ca(2+)/calmodulin myosin light chain kinase (CaM-MLCK), and phosphorylation of MLC.
|
62 |
11919159
|
Our data demonstrate that the RhoA and RhoD small GTPases are acting as a molecular switch of cellular invasion and reveal a novel critical mechanism by which PAR-1 bypass Galphao/i and RhoA inhibition via differential coupling to heterotrimeric G-proteins linked to divergent or convergent biological responses.
|
63 |
11919159
|
We conclude that dynamic regulation of Rho GTPases activation and inactivation by oncogenes, growth factors, cGMP-inducing agents, and adhesion molecules can initiate convergent invasion signals controlled by the thrombin PAR-1 in cancer cells.
|
64 |
15198926
|
Basal myosin light chain (MLC) phosphorylation levels were significantly elevated in response to most stimuli in muscle strips from diabetic animals, although levels of stress were either unchanged or lower. alpha-Toxin-permeabilized strips that allow for control of the intracellular environment while maintaining excitation-contraction coupling showed increased levels of MLC phosphorylation but decreased sensitivity to activator Ca2+ in smooth muscle from diabetic animals.
|
65 |
16160062
|
HMG CoA reductase inhibition modulates VEGF-induced endothelial cell hyperpermeability by preventing RhoA activation and myosin regulatory light chain phosphorylation.
|
66 |
16160062
|
Using live cell imaging with green fluorescent protein-tagged myosin regulatory light chain (MLC) and correlative biochemical analyses, we investigated 1) VEGF signaling pathway leading to GEnC hyperpermeability and 2) the modulatory effects of statins on VEGF signaling.
|
67 |
16160062
|
The signaling pathway that mediates VEGF-induced GEnC hyperpermeability involves RhoA activation leading to actin cytoskeletal remodeling, MLC diphosphorylation, and enhanced paracellular gap formation.
|
68 |
16160062
|
Remarkably, cotreatment of endothelial cells with simvastatin, a hydrophobic statin, reversed VEGF-induced GEnC hyperpermeability by preventing MLC diphosphorylation, and cytoskeletal remodeling.
|
69 |
16160062
|
In summary, this study identifies RhoA and MLC phosphorylation as key mediators of VEGF-induced endothelial cell hyperpermeability and demonstrates the modulatory effects of statins on VEGF signaling pathway.
|
70 |
16160062
|
HMG CoA reductase inhibition modulates VEGF-induced endothelial cell hyperpermeability by preventing RhoA activation and myosin regulatory light chain phosphorylation.
|
71 |
16160062
|
Using live cell imaging with green fluorescent protein-tagged myosin regulatory light chain (MLC) and correlative biochemical analyses, we investigated 1) VEGF signaling pathway leading to GEnC hyperpermeability and 2) the modulatory effects of statins on VEGF signaling.
|
72 |
16160062
|
The signaling pathway that mediates VEGF-induced GEnC hyperpermeability involves RhoA activation leading to actin cytoskeletal remodeling, MLC diphosphorylation, and enhanced paracellular gap formation.
|
73 |
16160062
|
Remarkably, cotreatment of endothelial cells with simvastatin, a hydrophobic statin, reversed VEGF-induced GEnC hyperpermeability by preventing MLC diphosphorylation, and cytoskeletal remodeling.
|
74 |
16160062
|
In summary, this study identifies RhoA and MLC phosphorylation as key mediators of VEGF-induced endothelial cell hyperpermeability and demonstrates the modulatory effects of statins on VEGF signaling pathway.
|
75 |
16160062
|
HMG CoA reductase inhibition modulates VEGF-induced endothelial cell hyperpermeability by preventing RhoA activation and myosin regulatory light chain phosphorylation.
|
76 |
16160062
|
Using live cell imaging with green fluorescent protein-tagged myosin regulatory light chain (MLC) and correlative biochemical analyses, we investigated 1) VEGF signaling pathway leading to GEnC hyperpermeability and 2) the modulatory effects of statins on VEGF signaling.
|
77 |
16160062
|
The signaling pathway that mediates VEGF-induced GEnC hyperpermeability involves RhoA activation leading to actin cytoskeletal remodeling, MLC diphosphorylation, and enhanced paracellular gap formation.
|
78 |
16160062
|
Remarkably, cotreatment of endothelial cells with simvastatin, a hydrophobic statin, reversed VEGF-induced GEnC hyperpermeability by preventing MLC diphosphorylation, and cytoskeletal remodeling.
|
79 |
16160062
|
In summary, this study identifies RhoA and MLC phosphorylation as key mediators of VEGF-induced endothelial cell hyperpermeability and demonstrates the modulatory effects of statins on VEGF signaling pathway.
|
80 |
16160062
|
HMG CoA reductase inhibition modulates VEGF-induced endothelial cell hyperpermeability by preventing RhoA activation and myosin regulatory light chain phosphorylation.
|
81 |
16160062
|
Using live cell imaging with green fluorescent protein-tagged myosin regulatory light chain (MLC) and correlative biochemical analyses, we investigated 1) VEGF signaling pathway leading to GEnC hyperpermeability and 2) the modulatory effects of statins on VEGF signaling.
|
82 |
16160062
|
The signaling pathway that mediates VEGF-induced GEnC hyperpermeability involves RhoA activation leading to actin cytoskeletal remodeling, MLC diphosphorylation, and enhanced paracellular gap formation.
|
83 |
16160062
|
Remarkably, cotreatment of endothelial cells with simvastatin, a hydrophobic statin, reversed VEGF-induced GEnC hyperpermeability by preventing MLC diphosphorylation, and cytoskeletal remodeling.
|
84 |
16160062
|
In summary, this study identifies RhoA and MLC phosphorylation as key mediators of VEGF-induced endothelial cell hyperpermeability and demonstrates the modulatory effects of statins on VEGF signaling pathway.
|
85 |
16204412
|
Increased basal phosphorylation of detrusor smooth muscle myosin in alloxan-induced diabetic rabbit is mediated by upregulation of Rho-kinase beta and CPI-17.
|
86 |
16204412
|
It is well established that smooth muscle contractility is regulated by an elevation of cytosolic Ca(2+) via myosin light chain (MLC) phosphorylation.
|
87 |
16204412
|
However, recent studies have shown the modulation of MLC phosphorylation without a rise in Ca(2+) in smooth muscle and that two key molecules (Rho-kinase and CPI-17) are involved in the regulation of calcium sensitization.
|
88 |
16204412
|
Our results also suggest that this high basal MLC phosphorylation may be due to the upregulation of Rho-kinase and CPI-17.
|
89 |
16204412
|
Increased basal phosphorylation of detrusor smooth muscle myosin in alloxan-induced diabetic rabbit is mediated by upregulation of Rho-kinase beta and CPI-17.
|
90 |
16204412
|
It is well established that smooth muscle contractility is regulated by an elevation of cytosolic Ca(2+) via myosin light chain (MLC) phosphorylation.
|
91 |
16204412
|
However, recent studies have shown the modulation of MLC phosphorylation without a rise in Ca(2+) in smooth muscle and that two key molecules (Rho-kinase and CPI-17) are involved in the regulation of calcium sensitization.
|
92 |
16204412
|
Our results also suggest that this high basal MLC phosphorylation may be due to the upregulation of Rho-kinase and CPI-17.
|
93 |
16204412
|
Increased basal phosphorylation of detrusor smooth muscle myosin in alloxan-induced diabetic rabbit is mediated by upregulation of Rho-kinase beta and CPI-17.
|
94 |
16204412
|
It is well established that smooth muscle contractility is regulated by an elevation of cytosolic Ca(2+) via myosin light chain (MLC) phosphorylation.
|
95 |
16204412
|
However, recent studies have shown the modulation of MLC phosphorylation without a rise in Ca(2+) in smooth muscle and that two key molecules (Rho-kinase and CPI-17) are involved in the regulation of calcium sensitization.
|
96 |
16204412
|
Our results also suggest that this high basal MLC phosphorylation may be due to the upregulation of Rho-kinase and CPI-17.
|
97 |
16885993
|
A key mechanism regulating this interaction and subsequent development and maintenance of force is alternative splicing of SM myosin heavy chain (MHC) and 17 kDa essential SM myosin light chain (MLC) pre-mRNAs.
|
98 |
20479130
|
Myosin light chain kinase (MLCK) plays an important role in maintaining the equilibrium by phosphorylating myosin light chain (MLC), thereby inducing actomyosin contractility and weakening endothelial cell-cell adhesion.
|