# |
PMID |
Sentence |
1 |
8223699
|
Location of gp330/alpha 2-m receptor-associated protein (alpha 2-MRAP) and its binding sites in kidney: distribution of endogenous alpha 2-MRAP is modified by tissue processing.
|
2 |
8223699
|
The alpha 2-macroglobulin receptor-associated protein (alpha 2-MRAP) is a 39 to 44 kDa protein that copurifies with the alpha 2-macroglobulin receptor (alpha 2-MR/LRP) and also with gp330, a highly glycosylated protein located within kidney proximal tubules and glomerular podocytes.
|
3 |
8223699
|
Both gp330 and the alpha 2-macroglobulin receptor are members of the low density lipoprotein receptor family but the physiological ligands for gp330 are unknown.
|
4 |
8223699
|
A series of experiments showed that during incubation of snap-frozen tissues, endogenous alpha 2-MRAP is released in soluble form from its intracellular location (i.e., the RER) and binds to gp330 on the brush border of proximal tubules.
|
5 |
8223699
|
Our results demonstrate: a) that in renal proximal tubule cells, alpha 2-MRAP is located predominantly in the RER, b) that alpha 2-MRAP-binding sites are present on gp330, which is on the proximal tubule brush border, and c) that the apparent brush border localization of alpha 2-MRAP detected in snap-frozen sections is due to an artifactual redistribution of endogenous alpha 2-MRAP that occurs during tissue processing.
|
6 |
16973757
|
In addition to COUP-TFs, we also examined the expression profiles of eight other nuclear receptors (farnesoid X receptor, vitamin D receptor, hepatocyte nuclear factor 4alpha, retinoid X receptor alpha, mineralocorticoid receptor, steroidogenic factor 1, liver receptor homolog-1, and germ cell nuclear factor).
|
7 |
17200434
|
Notably, gene expressions of podocyte-associated molecules nephrin and podocin were markedly decreased in aldosterone-infused rats at 2 weeks, with a gradual decrease thereafter.
|
8 |
17200434
|
Podocyte injury was accompanied by renal reduced nicotinamide-adenine dinucleotide phosphate oxidase activation, increased oxidative stress, and enhanced expression of aldosterone effector kinase Sgk1.
|
9 |
17200434
|
In addition, proteinuria, podocyte damage, and Sgk1 upregulation were significantly alleviated by tempol, a membrane-permeable superoxide dismutase, suggesting the pathogenic role of oxidative stress.
|
10 |
17200434
|
In cultured podocytes with consistent expression of mineralocorticoid receptor, aldosterone stimulated membrane translocation of reduced nicotinamide-adenine dinucleotide phosphate oxidase cytosolic components and oxidative stress generation in podocytes.
|
11 |
17200434
|
Furthermore, aldosterone enhanced the expression of Sgk1, which was inhibited by mineralocorticoid receptor antagonist and tempol.
|
12 |
17200434
|
Notably, gene expressions of podocyte-associated molecules nephrin and podocin were markedly decreased in aldosterone-infused rats at 2 weeks, with a gradual decrease thereafter.
|
13 |
17200434
|
Podocyte injury was accompanied by renal reduced nicotinamide-adenine dinucleotide phosphate oxidase activation, increased oxidative stress, and enhanced expression of aldosterone effector kinase Sgk1.
|
14 |
17200434
|
In addition, proteinuria, podocyte damage, and Sgk1 upregulation were significantly alleviated by tempol, a membrane-permeable superoxide dismutase, suggesting the pathogenic role of oxidative stress.
|
15 |
17200434
|
In cultured podocytes with consistent expression of mineralocorticoid receptor, aldosterone stimulated membrane translocation of reduced nicotinamide-adenine dinucleotide phosphate oxidase cytosolic components and oxidative stress generation in podocytes.
|
16 |
17200434
|
Furthermore, aldosterone enhanced the expression of Sgk1, which was inhibited by mineralocorticoid receptor antagonist and tempol.
|
17 |
18317876
|
Mineralocorticoid receptor was detected in the podocytes in vivo and in vitro, and aldosterone caused induction of its effector kinase Sgk1, activation of NADPH oxidase and generation of reactive oxygen species.
|
18 |
18434388
|
Angiotensin II accelerates and renin-angiotensin system blockade halts progression; blockade with high doses even reverses established glomerulosclerosis.
|
19 |
18434388
|
The purpose of this study was to assess the relative ability of an angiotensin receptor type 1 (AT1) blocker, a mineralocorticoid receptor blocker, and their combination to reverse glomerulosclerosis.
|
20 |
18434388
|
Combining the AT1 blocker with mineralocorticoid receptor blockade failed to further increase the regression of glomerulosclerosis.
|
21 |
18434388
|
Angiotensin II accelerates and renin-angiotensin system blockade halts progression; blockade with high doses even reverses established glomerulosclerosis.
|
22 |
18434388
|
The purpose of this study was to assess the relative ability of an angiotensin receptor type 1 (AT1) blocker, a mineralocorticoid receptor blocker, and their combination to reverse glomerulosclerosis.
|
23 |
18434388
|
Combining the AT1 blocker with mineralocorticoid receptor blockade failed to further increase the regression of glomerulosclerosis.
|
24 |
19029984
|
Modification of mineralocorticoid receptor function by Rac1 GTPase: implication in proteinuric kidney disease.
|
25 |
19029984
|
Here we identify a new role for Rac1, a member of the Rho family GTPases, as a potent activator of mineralocorticoid receptor signal transduction both in vitro and in vivo.
|
26 |
19029984
|
Transient transfection assays in HEK 293 cells revealed that constitutively active Rac1 (CA-Rac1) enhanced mineralocorticoid receptor-dependent reporter activity, which was accompanied by increased nuclear translocation of mineralocorticoid receptor.
|
27 |
19029984
|
CA-Rac1 facilitated mineralocorticoid receptor nuclear accumulation also in podocytes via p21-activated kinase phosphorylation.
|
28 |
19029984
|
In mice lacking Rho GDP-dissociation inhibitor-alpha (Arhgdia(-/-) mice), renal abnormalities, including heavy albuminuria and podocyte damage, were associated with increased Rac1 (but not RhoA) and mineralocorticoid receptor signaling in the kidney, without alteration in systemic aldosterone status.
|
29 |
19029984
|
Furthermore, albuminuria and histological changes in Arhgdia(-/-) mice were suppressed by mineralocorticoid receptor blockade, confirming the pathological role of Rac1-mineralocorticoid receptor interaction.
|
30 |
19029984
|
Our results provide evidence that signaling cross-talk between Rac1 and mineralocorticoid receptor modulates mineralocorticoid receptor activity and identify Rac1 as a therapeutic target for chronic kidney disease.
|
31 |
19029984
|
Modification of mineralocorticoid receptor function by Rac1 GTPase: implication in proteinuric kidney disease.
|
32 |
19029984
|
Here we identify a new role for Rac1, a member of the Rho family GTPases, as a potent activator of mineralocorticoid receptor signal transduction both in vitro and in vivo.
|
33 |
19029984
|
Transient transfection assays in HEK 293 cells revealed that constitutively active Rac1 (CA-Rac1) enhanced mineralocorticoid receptor-dependent reporter activity, which was accompanied by increased nuclear translocation of mineralocorticoid receptor.
|
34 |
19029984
|
CA-Rac1 facilitated mineralocorticoid receptor nuclear accumulation also in podocytes via p21-activated kinase phosphorylation.
|
35 |
19029984
|
In mice lacking Rho GDP-dissociation inhibitor-alpha (Arhgdia(-/-) mice), renal abnormalities, including heavy albuminuria and podocyte damage, were associated with increased Rac1 (but not RhoA) and mineralocorticoid receptor signaling in the kidney, without alteration in systemic aldosterone status.
|
36 |
19029984
|
Furthermore, albuminuria and histological changes in Arhgdia(-/-) mice were suppressed by mineralocorticoid receptor blockade, confirming the pathological role of Rac1-mineralocorticoid receptor interaction.
|
37 |
19029984
|
Our results provide evidence that signaling cross-talk between Rac1 and mineralocorticoid receptor modulates mineralocorticoid receptor activity and identify Rac1 as a therapeutic target for chronic kidney disease.
|
38 |
19029984
|
Modification of mineralocorticoid receptor function by Rac1 GTPase: implication in proteinuric kidney disease.
|
39 |
19029984
|
Here we identify a new role for Rac1, a member of the Rho family GTPases, as a potent activator of mineralocorticoid receptor signal transduction both in vitro and in vivo.
|
40 |
19029984
|
Transient transfection assays in HEK 293 cells revealed that constitutively active Rac1 (CA-Rac1) enhanced mineralocorticoid receptor-dependent reporter activity, which was accompanied by increased nuclear translocation of mineralocorticoid receptor.
|
41 |
19029984
|
CA-Rac1 facilitated mineralocorticoid receptor nuclear accumulation also in podocytes via p21-activated kinase phosphorylation.
|
42 |
19029984
|
In mice lacking Rho GDP-dissociation inhibitor-alpha (Arhgdia(-/-) mice), renal abnormalities, including heavy albuminuria and podocyte damage, were associated with increased Rac1 (but not RhoA) and mineralocorticoid receptor signaling in the kidney, without alteration in systemic aldosterone status.
|
43 |
19029984
|
Furthermore, albuminuria and histological changes in Arhgdia(-/-) mice were suppressed by mineralocorticoid receptor blockade, confirming the pathological role of Rac1-mineralocorticoid receptor interaction.
|
44 |
19029984
|
Our results provide evidence that signaling cross-talk between Rac1 and mineralocorticoid receptor modulates mineralocorticoid receptor activity and identify Rac1 as a therapeutic target for chronic kidney disease.
|
45 |
19029984
|
Modification of mineralocorticoid receptor function by Rac1 GTPase: implication in proteinuric kidney disease.
|
46 |
19029984
|
Here we identify a new role for Rac1, a member of the Rho family GTPases, as a potent activator of mineralocorticoid receptor signal transduction both in vitro and in vivo.
|
47 |
19029984
|
Transient transfection assays in HEK 293 cells revealed that constitutively active Rac1 (CA-Rac1) enhanced mineralocorticoid receptor-dependent reporter activity, which was accompanied by increased nuclear translocation of mineralocorticoid receptor.
|
48 |
19029984
|
CA-Rac1 facilitated mineralocorticoid receptor nuclear accumulation also in podocytes via p21-activated kinase phosphorylation.
|
49 |
19029984
|
In mice lacking Rho GDP-dissociation inhibitor-alpha (Arhgdia(-/-) mice), renal abnormalities, including heavy albuminuria and podocyte damage, were associated with increased Rac1 (but not RhoA) and mineralocorticoid receptor signaling in the kidney, without alteration in systemic aldosterone status.
|
50 |
19029984
|
Furthermore, albuminuria and histological changes in Arhgdia(-/-) mice were suppressed by mineralocorticoid receptor blockade, confirming the pathological role of Rac1-mineralocorticoid receptor interaction.
|
51 |
19029984
|
Our results provide evidence that signaling cross-talk between Rac1 and mineralocorticoid receptor modulates mineralocorticoid receptor activity and identify Rac1 as a therapeutic target for chronic kidney disease.
|
52 |
19029984
|
Modification of mineralocorticoid receptor function by Rac1 GTPase: implication in proteinuric kidney disease.
|
53 |
19029984
|
Here we identify a new role for Rac1, a member of the Rho family GTPases, as a potent activator of mineralocorticoid receptor signal transduction both in vitro and in vivo.
|
54 |
19029984
|
Transient transfection assays in HEK 293 cells revealed that constitutively active Rac1 (CA-Rac1) enhanced mineralocorticoid receptor-dependent reporter activity, which was accompanied by increased nuclear translocation of mineralocorticoid receptor.
|
55 |
19029984
|
CA-Rac1 facilitated mineralocorticoid receptor nuclear accumulation also in podocytes via p21-activated kinase phosphorylation.
|
56 |
19029984
|
In mice lacking Rho GDP-dissociation inhibitor-alpha (Arhgdia(-/-) mice), renal abnormalities, including heavy albuminuria and podocyte damage, were associated with increased Rac1 (but not RhoA) and mineralocorticoid receptor signaling in the kidney, without alteration in systemic aldosterone status.
|
57 |
19029984
|
Furthermore, albuminuria and histological changes in Arhgdia(-/-) mice were suppressed by mineralocorticoid receptor blockade, confirming the pathological role of Rac1-mineralocorticoid receptor interaction.
|
58 |
19029984
|
Our results provide evidence that signaling cross-talk between Rac1 and mineralocorticoid receptor modulates mineralocorticoid receptor activity and identify Rac1 as a therapeutic target for chronic kidney disease.
|
59 |
19029984
|
Modification of mineralocorticoid receptor function by Rac1 GTPase: implication in proteinuric kidney disease.
|
60 |
19029984
|
Here we identify a new role for Rac1, a member of the Rho family GTPases, as a potent activator of mineralocorticoid receptor signal transduction both in vitro and in vivo.
|
61 |
19029984
|
Transient transfection assays in HEK 293 cells revealed that constitutively active Rac1 (CA-Rac1) enhanced mineralocorticoid receptor-dependent reporter activity, which was accompanied by increased nuclear translocation of mineralocorticoid receptor.
|
62 |
19029984
|
CA-Rac1 facilitated mineralocorticoid receptor nuclear accumulation also in podocytes via p21-activated kinase phosphorylation.
|
63 |
19029984
|
In mice lacking Rho GDP-dissociation inhibitor-alpha (Arhgdia(-/-) mice), renal abnormalities, including heavy albuminuria and podocyte damage, were associated with increased Rac1 (but not RhoA) and mineralocorticoid receptor signaling in the kidney, without alteration in systemic aldosterone status.
|
64 |
19029984
|
Furthermore, albuminuria and histological changes in Arhgdia(-/-) mice were suppressed by mineralocorticoid receptor blockade, confirming the pathological role of Rac1-mineralocorticoid receptor interaction.
|
65 |
19029984
|
Our results provide evidence that signaling cross-talk between Rac1 and mineralocorticoid receptor modulates mineralocorticoid receptor activity and identify Rac1 as a therapeutic target for chronic kidney disease.
|
66 |
19029984
|
Modification of mineralocorticoid receptor function by Rac1 GTPase: implication in proteinuric kidney disease.
|
67 |
19029984
|
Here we identify a new role for Rac1, a member of the Rho family GTPases, as a potent activator of mineralocorticoid receptor signal transduction both in vitro and in vivo.
|
68 |
19029984
|
Transient transfection assays in HEK 293 cells revealed that constitutively active Rac1 (CA-Rac1) enhanced mineralocorticoid receptor-dependent reporter activity, which was accompanied by increased nuclear translocation of mineralocorticoid receptor.
|
69 |
19029984
|
CA-Rac1 facilitated mineralocorticoid receptor nuclear accumulation also in podocytes via p21-activated kinase phosphorylation.
|
70 |
19029984
|
In mice lacking Rho GDP-dissociation inhibitor-alpha (Arhgdia(-/-) mice), renal abnormalities, including heavy albuminuria and podocyte damage, were associated with increased Rac1 (but not RhoA) and mineralocorticoid receptor signaling in the kidney, without alteration in systemic aldosterone status.
|
71 |
19029984
|
Furthermore, albuminuria and histological changes in Arhgdia(-/-) mice were suppressed by mineralocorticoid receptor blockade, confirming the pathological role of Rac1-mineralocorticoid receptor interaction.
|
72 |
19029984
|
Our results provide evidence that signaling cross-talk between Rac1 and mineralocorticoid receptor modulates mineralocorticoid receptor activity and identify Rac1 as a therapeutic target for chronic kidney disease.
|
73 |
19151533
|
There is increasing evidence demonstrating that the renoprotective effects of mineralocorticoid receptor (MR) blockade are independent of the effects exerted by renin-angiotensin inhibitors.
|
74 |
19261739
|
Recent evidence suggests that mineralocorticoid receptor (MR) antagonism has beneficial effects on tissue oxidative stress and insulin metabolic signaling as well as reducing proteinuria.
|
75 |
19261739
|
However, the mechanisms by which MR antagonism corrects both renin-angiotensin-aldosterone system (RAAS) impairments in renal insulin metabolic signaling and filtration barrier/podocyte injury remain unknown.
|
76 |
19261739
|
Albuminuria, podocyte-specific proteins (synaptopodin, nephrin, and podocin), and ultrastructural analysis of the glomerular filtration barrier were measured in relation to RAAS activation of reduced nicotinamide adenine dinucleotide phosphate (NADPH) oxidase, reactive oxygen species (ROS), and the redox-sensitive Rho kinase (ROK).
|
77 |
19261739
|
Insulin metabolic signaling was determined via measurement of insulin receptor substrate-1 (IRS-1) phosphorylation, IRS-1 ubiquitin/proteasomal degradation, and phosphorylation of Akt.
|
78 |
19261739
|
Ren2 rats exhibited albuminuria, loss of podocyte-specific proteins, and podocyte foot process effacement contemporaneous with reduced renal IRS-1 and protein kinase B/Akt phosphorylation compared with SD control rats (each P < 0.05).
|
79 |
19261739
|
Ren2 kidneys also manifested increased NADPH oxidase/ROS/ROK in conjunction with enhanced renal tissue levels of angiotensin II (ANG II), ANG-(1-12), and angiotensin type 1 receptor.
|
80 |
19261739
|
Low-dose spironolactone treatment reduced albuminuria and tissue RAAS activity and improved podocyte structural and protein integrity with improvements in IRS-1/Akt phosphorylation.
|
81 |
19710242
|
Aldosterone synthase (CYP11B2) and MCR mRNA and protein expression were determined by real-time PCR and Western blot, respectively, and aldosterone levels by radioimmunoassay.
|
82 |
19710242
|
CYP11B2 and MCR expression were significantly higher in HG-stimulated podocytes and DM glomeruli compared with NG cells and C glomeruli, respectively, along with increased aldosterone levels.
|
83 |
19710242
|
Western blot analysis revealed that cleaved caspase-3 and Bax expression was significantly increased, whereas Bcl-2 expression was significantly decreased in HG-stimulated podocytes and in DM glomeruli.
|
84 |
19710242
|
Aldosterone synthase (CYP11B2) and MCR mRNA and protein expression were determined by real-time PCR and Western blot, respectively, and aldosterone levels by radioimmunoassay.
|
85 |
19710242
|
CYP11B2 and MCR expression were significantly higher in HG-stimulated podocytes and DM glomeruli compared with NG cells and C glomeruli, respectively, along with increased aldosterone levels.
|
86 |
19710242
|
Western blot analysis revealed that cleaved caspase-3 and Bax expression was significantly increased, whereas Bcl-2 expression was significantly decreased in HG-stimulated podocytes and in DM glomeruli.
|
87 |
20234356
|
Large interventional trials have confirmed the benefits of adding mineralocorticoid-receptor antagonists to standard therapy, in particular to angiotensin-converting-enzyme inhibitor and angiotensin II receptor blocker therapy, in patients with heart failure.
|
88 |
21119529
|
Inhibition of mineralocorticoid receptor is a renoprotective effect of the 3-hydroxy-3-methylglutaryl-coenzyme A reductase inhibitor pitavastatin.
|
89 |
21177830
|
Recent data suggest that nicotinamide adenine dinucleotide phosphate oxidase-mediated oxidative injury to the proximal tubule, like that seen in the glomerulus, contributes to proteinuria in insulin-resistant states.
|
90 |
21177830
|
The vasodilator β-blocker nebivolol reduces nicotinamide adenine dinucleotide phosphate oxidase activity, increases bioavailable nitric oxide, and improves insulin sensitivity.
|
91 |
21177830
|
Compared with Zucker lean, ZO controls exhibited increased proteinuria and γ-glutamyl transpeptidase, reductions in systemic insulin sensitivity in association with increased renal renin, (pro)renin receptor, angiotensin II type 1 receptor, and mineralocorticoid receptor immunostaining, oxidative stress, and glomerular tubular structural abnormalities that were substantially improved with in vivo nebivolol treatment.
|
92 |
21177830
|
Nebivolol treatment also led to improvements in glomerular podocyte foot-process effacement and improvement in podocyte-specific proteins (nephrin and synaptopodin) as well as proximal tubule-specific proteins (megalin and lysosomal-associated membrane protein-2) and proximal tubule ultrastructural remodeling in the ZO kidney.
|
93 |
21209008
|
Diet-induced obesity (DIO) and insulin resistance in mice are associated with proteinuria, renal mesangial expansion, accumulation of extracellular matrix proteins, and activation of oxidative stress, proinflammatory cytokines, profibrotic growth factors, and the sterol regulatory element binding proteins, SREBP-1 and SREBP-2, that mediate increases in fatty acid and cholesterol synthesis.
|
94 |
21209008
|
Furthermore, the VDR agonist also prevents the activation of the renin-angiotensin-aldosterone system including the angiotensin II type 1 receptor and the mineralocorticoid receptor.
|
95 |
21209008
|
An additional novel finding of our study is that activation of VDR results in decreased accumulation of neutral lipids (triglycerides and cholesterol) and expression of adipophilin in the kidney by decreasing SREBP-1 and SREBP-2 expression and target enzymes that mediate fatty acid and cholesterol synthesis and increasing expression of the farnesoid X receptor.
|
96 |
23296296
|
Role of Rac1-mineralocorticoid-receptor signalling in renal and cardiac disease.
|
97 |
23296296
|
The Rho-family small GTPase, Ras-related C3 botulinum toxin substrate 1 (Rac1), has been implicated in renal and cardiac disease.
|
98 |
23296296
|
Using knockout mice, we identified a novel mechanism of Rac1-mediated podocyte impairment; Rac1 potentiates the activity of the mineralocorticoid receptor, thereby accelerating podocyte injury.
|
99 |
23296296
|
We subsequently demonstrated that the Rac1-mineralocorticoid-receptor pathway contributes to ligand-independent mineralocorticoid-receptor activation in several animal models of kidney and cardiac injury.
|
100 |
23296296
|
Hyperkalaemia is a major concern associated with the use of mineralocorticoid-receptor antagonists; however, agents that modulate the activity of the Rac1-mineralocorticoid-receptor pathway in target cells, such as cell-type-specific Rac inhibitors and selective mineralocorticoid-receptor modulators, could potentially be novel therapeutic candidates with high efficacy and a low risk of adverse effects in patients with renal and cardiac diseases.
|
101 |
23296296
|
Role of Rac1-mineralocorticoid-receptor signalling in renal and cardiac disease.
|
102 |
23296296
|
The Rho-family small GTPase, Ras-related C3 botulinum toxin substrate 1 (Rac1), has been implicated in renal and cardiac disease.
|
103 |
23296296
|
Using knockout mice, we identified a novel mechanism of Rac1-mediated podocyte impairment; Rac1 potentiates the activity of the mineralocorticoid receptor, thereby accelerating podocyte injury.
|
104 |
23296296
|
We subsequently demonstrated that the Rac1-mineralocorticoid-receptor pathway contributes to ligand-independent mineralocorticoid-receptor activation in several animal models of kidney and cardiac injury.
|
105 |
23296296
|
Hyperkalaemia is a major concern associated with the use of mineralocorticoid-receptor antagonists; however, agents that modulate the activity of the Rac1-mineralocorticoid-receptor pathway in target cells, such as cell-type-specific Rac inhibitors and selective mineralocorticoid-receptor modulators, could potentially be novel therapeutic candidates with high efficacy and a low risk of adverse effects in patients with renal and cardiac diseases.
|
106 |
23296296
|
Role of Rac1-mineralocorticoid-receptor signalling in renal and cardiac disease.
|
107 |
23296296
|
The Rho-family small GTPase, Ras-related C3 botulinum toxin substrate 1 (Rac1), has been implicated in renal and cardiac disease.
|
108 |
23296296
|
Using knockout mice, we identified a novel mechanism of Rac1-mediated podocyte impairment; Rac1 potentiates the activity of the mineralocorticoid receptor, thereby accelerating podocyte injury.
|
109 |
23296296
|
We subsequently demonstrated that the Rac1-mineralocorticoid-receptor pathway contributes to ligand-independent mineralocorticoid-receptor activation in several animal models of kidney and cardiac injury.
|
110 |
23296296
|
Hyperkalaemia is a major concern associated with the use of mineralocorticoid-receptor antagonists; however, agents that modulate the activity of the Rac1-mineralocorticoid-receptor pathway in target cells, such as cell-type-specific Rac inhibitors and selective mineralocorticoid-receptor modulators, could potentially be novel therapeutic candidates with high efficacy and a low risk of adverse effects in patients with renal and cardiac diseases.
|
111 |
23296296
|
Role of Rac1-mineralocorticoid-receptor signalling in renal and cardiac disease.
|
112 |
23296296
|
The Rho-family small GTPase, Ras-related C3 botulinum toxin substrate 1 (Rac1), has been implicated in renal and cardiac disease.
|
113 |
23296296
|
Using knockout mice, we identified a novel mechanism of Rac1-mediated podocyte impairment; Rac1 potentiates the activity of the mineralocorticoid receptor, thereby accelerating podocyte injury.
|
114 |
23296296
|
We subsequently demonstrated that the Rac1-mineralocorticoid-receptor pathway contributes to ligand-independent mineralocorticoid-receptor activation in several animal models of kidney and cardiac injury.
|
115 |
23296296
|
Hyperkalaemia is a major concern associated with the use of mineralocorticoid-receptor antagonists; however, agents that modulate the activity of the Rac1-mineralocorticoid-receptor pathway in target cells, such as cell-type-specific Rac inhibitors and selective mineralocorticoid-receptor modulators, could potentially be novel therapeutic candidates with high efficacy and a low risk of adverse effects in patients with renal and cardiac diseases.
|
116 |
28052869
|
In vitro, exposure of podocytes to Aldo enhanced NLRP3, caspase-1, and IL-18 expressions in dose- and time-dependent manners, indicating an activation of NLRP3 inflammasome, which was significantly blocked by the mineralocorticoid receptor antagonist eplerenone or the antioxidant N-acetylcysteine.
|
117 |
28052869
|
Silencing NLRP3 by a siRNA approach strikingly attenuated Aldo-induced podocyte apoptosis and nephrin protein downregulation in line with the blockade of caspase-1 and IL-18.
|
118 |
28052869
|
In vivo, since day 5 of Aldo infusion, NLRP3 inflammasome activation and podocyte injury evidenced by nephrin reduction occurred concurrently.
|
119 |
28052869
|
In the mice with NLRP3 gene deletion, Aldo-induced downregulation of nephrin and podocin, podocyte foot processes, and albuminuria was remarkably improved, indicating an amelioration of podocyte injury.
|
120 |
28052869
|
Finally, we observed a striking induction of NLRP3 in glomeruli and renal tubules in line with an enhanced urinary IL-18 output in nephrotic syndrome patients with minimal change disease or focal segmental glomerular sclerosis.
|
121 |
31133455
|
However, the use of drugs that target specific pathways to delay or halt CKD progression, such as angiotensin-converting enzyme inhibitors, angiotensin receptor blockers, and sodium-glucose co-transporter-2 (SGLT-2) inhibitors is limited in clinical practice.
|
122 |
31133455
|
Several preclinical studies have shown that mineralocorticoid receptor antagonists (MRAs) ameliorate or cure kidney injury and dysfunction in different models of kidney disease.
|
123 |
32267077
|
Renin angiotensin aldosterone system blockade and sodium glucose cotransporter 2 (SGLT2) inhibition have yielded promising results in DKD, but many diabetic patients on such treatments nevertheless continue to develop DKD, leading to kidney failure and cardiovascular comorbidities.
|
124 |
32267077
|
We review here the promising therapeutic avenues based on insights into the mechanisms of DKD that have recently emerged, including mineralocorticoid receptor antagonists, SGLT2 inhibitors, glucagon-like peptide-1 receptor agonist, endothelin receptor A inhibition, anti-inflammatory agents, autophagy activators and epigenetic remodelling.
|
125 |
32943753
|
Vitamin D receptor, oestrogen receptor and mineralocorticoid receptor modulators regulate podocyte injury in experimental models.
|