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PMID |
Sentence |
1 |
17360662
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MicroRNA-192 in diabetic kidney glomeruli and its function in TGF-beta-induced collagen expression via inhibition of E-box repressors.
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2 |
17360662
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Key features of diabetic nephropathy (DN) include the accumulation of extracellular matrix proteins such as collagen 1-alpha 1 and -2 (Col1a1 and -2).
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3 |
17360662
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Transforming growth factor beta1 (TGF-beta), a key regulator of these extracellular matrix genes, is increased in mesangial cells (MC) in DN.
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4 |
17360662
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By microarray profiling, we noted that TGF-beta increased Col1a2 mRNA in mouse MC (MMC) but also decreased mRNA levels of an E-box repressor, deltaEF1.
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5 |
17360662
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TGF-beta treatment or short hairpin RNAs targeting deltaEF1 increased enhancer activity of upstream E-box elements in the Col1a2 gene.
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6 |
17360662
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TGF-beta also decreased the expression of Smad-interacting protein 1 (SIP1), another E-box repressor similar to deltaEF1.
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7 |
17360662
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Interestingly, we noted that SIP1 is a target of microRNA-192 (miR-192), a key miR highly expressed in the kidney. miR-192 levels also were increased by TGF-beta in MMC.
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8 |
17360662
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TGF-beta treatment or transfection with miR-192 decreased endogenous SIP1 expression as well as reporter activity of a SIP1 3' UTR-containing luciferase construct in MMC.
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9 |
17360662
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Conversely, a miR-192 inhibitor enhanced the luciferase activity, confirming SIP1 to be a miR-192 target.
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10 |
17360662
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Furthermore, miR-192 synergized with deltaEF1 short hairpin RNAs to increase Col1a2 E-box-luc activity.
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11 |
17360662
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Importantly, the in vivo relevance was noted by the observation that miR-192 levels were enhanced significantly in glomeruli isolated from streptozotocin-injected diabetic mice as well as diabetic db/db mice relative to corresponding nondiabetic controls, in parallel with increased TGF-beta and Col1a2 levels.
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12 |
17360662
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These results uncover a role for miRs in the kidney and DN in controlling TGF-beta-induced Col1a2 expression by down-regulating E-box repressors.
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13 |
21622171
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We present an argument for the existence of an "extended" Myc network comprised of two related transcription factors MondoA and ChREBP.
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14 |
21622171
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Both MondoA and ChREBP sense glycolytic flux and are the principal regulators of glucose-dependent transcription in their respective tissues, skeletal muscle and liver.
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15 |
21622171
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MondoA also senses glutaminolytic flux into the tricarboxylic acid cycle and appears to coordinate the utilization of glucose and glutamine by regulating expression of thioredoxin interacting protein.
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16 |
21622171
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We present an argument for the existence of an "extended" Myc network comprised of two related transcription factors MondoA and ChREBP.
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17 |
21622171
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Both MondoA and ChREBP sense glycolytic flux and are the principal regulators of glucose-dependent transcription in their respective tissues, skeletal muscle and liver.
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18 |
21622171
|
MondoA also senses glutaminolytic flux into the tricarboxylic acid cycle and appears to coordinate the utilization of glucose and glutamine by regulating expression of thioredoxin interacting protein.
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19 |
21622171
|
We present an argument for the existence of an "extended" Myc network comprised of two related transcription factors MondoA and ChREBP.
|
20 |
21622171
|
Both MondoA and ChREBP sense glycolytic flux and are the principal regulators of glucose-dependent transcription in their respective tissues, skeletal muscle and liver.
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21 |
21622171
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MondoA also senses glutaminolytic flux into the tricarboxylic acid cycle and appears to coordinate the utilization of glucose and glutamine by regulating expression of thioredoxin interacting protein.
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22 |
22506051
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In vertebrates, the transcription factor ChREBP is a major component in glucose metabolism, while its ortholog MondoA is involved in glucose uptake.
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23 |
22506051
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Both MondoA and ChREBP contain five Mondo conserved regions (MCRI-V) that affect their cellular localization and transactivation ability.
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24 |
22506051
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While phosphorylation has been shown to affect ChREBP function, the mechanisms controlling glucose response of both ChREBP and MondoA remain elusive.
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25 |
22506051
|
By incorporating sequence analysis techniques, structure predictions, and functional annotations, we synthesized data surrounding Mondo family proteins into a cohesive, accurate, and general model involving the MCRs and two additional domains that determine ChREBP and MondoA glucose response.
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26 |
22506051
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These interactions are likely involved in altering ChREBP and MondoA conformation to form an active complex and induce transcription of genes involved in glucose metabolism and lipogenesis.
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27 |
22506051
|
In vertebrates, the transcription factor ChREBP is a major component in glucose metabolism, while its ortholog MondoA is involved in glucose uptake.
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28 |
22506051
|
Both MondoA and ChREBP contain five Mondo conserved regions (MCRI-V) that affect their cellular localization and transactivation ability.
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29 |
22506051
|
While phosphorylation has been shown to affect ChREBP function, the mechanisms controlling glucose response of both ChREBP and MondoA remain elusive.
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30 |
22506051
|
By incorporating sequence analysis techniques, structure predictions, and functional annotations, we synthesized data surrounding Mondo family proteins into a cohesive, accurate, and general model involving the MCRs and two additional domains that determine ChREBP and MondoA glucose response.
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31 |
22506051
|
These interactions are likely involved in altering ChREBP and MondoA conformation to form an active complex and induce transcription of genes involved in glucose metabolism and lipogenesis.
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32 |
22506051
|
In vertebrates, the transcription factor ChREBP is a major component in glucose metabolism, while its ortholog MondoA is involved in glucose uptake.
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33 |
22506051
|
Both MondoA and ChREBP contain five Mondo conserved regions (MCRI-V) that affect their cellular localization and transactivation ability.
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34 |
22506051
|
While phosphorylation has been shown to affect ChREBP function, the mechanisms controlling glucose response of both ChREBP and MondoA remain elusive.
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35 |
22506051
|
By incorporating sequence analysis techniques, structure predictions, and functional annotations, we synthesized data surrounding Mondo family proteins into a cohesive, accurate, and general model involving the MCRs and two additional domains that determine ChREBP and MondoA glucose response.
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36 |
22506051
|
These interactions are likely involved in altering ChREBP and MondoA conformation to form an active complex and induce transcription of genes involved in glucose metabolism and lipogenesis.
|
37 |
22506051
|
In vertebrates, the transcription factor ChREBP is a major component in glucose metabolism, while its ortholog MondoA is involved in glucose uptake.
|
38 |
22506051
|
Both MondoA and ChREBP contain five Mondo conserved regions (MCRI-V) that affect their cellular localization and transactivation ability.
|
39 |
22506051
|
While phosphorylation has been shown to affect ChREBP function, the mechanisms controlling glucose response of both ChREBP and MondoA remain elusive.
|
40 |
22506051
|
By incorporating sequence analysis techniques, structure predictions, and functional annotations, we synthesized data surrounding Mondo family proteins into a cohesive, accurate, and general model involving the MCRs and two additional domains that determine ChREBP and MondoA glucose response.
|
41 |
22506051
|
These interactions are likely involved in altering ChREBP and MondoA conformation to form an active complex and induce transcription of genes involved in glucose metabolism and lipogenesis.
|
42 |
22506051
|
In vertebrates, the transcription factor ChREBP is a major component in glucose metabolism, while its ortholog MondoA is involved in glucose uptake.
|
43 |
22506051
|
Both MondoA and ChREBP contain five Mondo conserved regions (MCRI-V) that affect their cellular localization and transactivation ability.
|
44 |
22506051
|
While phosphorylation has been shown to affect ChREBP function, the mechanisms controlling glucose response of both ChREBP and MondoA remain elusive.
|
45 |
22506051
|
By incorporating sequence analysis techniques, structure predictions, and functional annotations, we synthesized data surrounding Mondo family proteins into a cohesive, accurate, and general model involving the MCRs and two additional domains that determine ChREBP and MondoA glucose response.
|
46 |
22506051
|
These interactions are likely involved in altering ChREBP and MondoA conformation to form an active complex and induce transcription of genes involved in glucose metabolism and lipogenesis.
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47 |
23840567
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From the 21 studied single nucleotide polymorphisms (SNPs) of seven candidate genes: MLXIPL, MLXIP, MLX, ADIPOR1, VDR, SREBF1 and NR1H3, only one tag SNP rs4758685 (T→C) was found to be statistically associated with CHD (P-value = 0.02, Odds ratio (OR) of 0.83).
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48 |
22869588
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Redox regulation by nuclear factor erythroid 2-related factor 2: gatekeeping for the basal and diabetes-induced expression of thioredoxin-interacting protein.
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49 |
22869588
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Nuclear factor erythroid 2-related factor 2 (Nrf2) is a transcription factor activated by a range of oxidants and electrophiles.
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50 |
22869588
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A pathway-focused gene array revealed that Nrf2 controls the expression of 24 genes in the heart, including the gene encoding thioredoxin-interacting protein (TXNIP).
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51 |
22869588
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Nrf2 suppressed the basal expression of Txnip in the heart and blocked induction of Txnip by high glucose by binding to an antioxidant response element (ARE) (-1286 to -1276) of the Txnip promoter.
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52 |
22869588
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Binding of Nrf2 to ARE also suppressed the binding of MondoA to the carbohydrate response element with or without high glucose.
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53 |
22869588
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On the other hand, Nrf2 boosted thioredoxin activity by inhibiting Txnip.
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54 |
22869588
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The findings revealed, for the first time, that Nrf2 is a key gatekeeper of Txnip transcription, suppressing both its basal expression and MondoA-driven induction to control the thioredoxin redox signaling in diabetes.
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55 |
22869588
|
Redox regulation by nuclear factor erythroid 2-related factor 2: gatekeeping for the basal and diabetes-induced expression of thioredoxin-interacting protein.
|
56 |
22869588
|
Nuclear factor erythroid 2-related factor 2 (Nrf2) is a transcription factor activated by a range of oxidants and electrophiles.
|
57 |
22869588
|
A pathway-focused gene array revealed that Nrf2 controls the expression of 24 genes in the heart, including the gene encoding thioredoxin-interacting protein (TXNIP).
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58 |
22869588
|
Nrf2 suppressed the basal expression of Txnip in the heart and blocked induction of Txnip by high glucose by binding to an antioxidant response element (ARE) (-1286 to -1276) of the Txnip promoter.
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59 |
22869588
|
Binding of Nrf2 to ARE also suppressed the binding of MondoA to the carbohydrate response element with or without high glucose.
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60 |
22869588
|
On the other hand, Nrf2 boosted thioredoxin activity by inhibiting Txnip.
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61 |
22869588
|
The findings revealed, for the first time, that Nrf2 is a key gatekeeper of Txnip transcription, suppressing both its basal expression and MondoA-driven induction to control the thioredoxin redox signaling in diabetes.
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