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PMID |
Sentence |
1 |
12128284
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Regulation of insulin action by CEACAM1.
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12128284
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Earlier studies in transfected cells suggested that the carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1), a substrate of the insulin receptor in liver, upregulates receptor-mediated insulin endocytosis and degradation in a phosphorylation-dependent manner.
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3 |
12128284
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The transgenic mouse demonstrated that CEACAM1 increases insulin clearance to maintain insulin sensitivity.
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4 |
12128284
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Because insulin resistance is the hallmark of type 2 diabetes, understanding the mechanism of CEACAM1 regulation of insulin clearance and action might lead to novel therapeutic strategies against this disease.
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5 |
18544705
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Carcinoembryonic antigen-related cell adhesion molecule 1: a link between insulin and lipid metabolism.
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6 |
18848945
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Development of nonalcoholic steatohepatitis in insulin-resistant liver-specific S503A carcinoembryonic antigen-related cell adhesion molecule 1 mutant mice.
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7 |
19956106
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Here, 257 single-nucleotide polymorphisms (SNPs) have been genotyped in 19 candidate genes (INS, PTPN22, IL2RA, CTLA4, IFIH1, SUMO4, VDR, PAX4, OAS1, IRS1, IL4, IL4R, IL13, IL12B, CEACAM21, CAPSL, Q7Z4c4(5Q), FOXP3, EFHB) in 2300 affected sib-pair families and tested for association with T1D as part of the Type I Diabetes Genetics Consortium's candidate gene study.
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8 |
19956106
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In contrast, no convincing evidence of association was obtained for SUMO4, VDR, PAX4, OAS1, IRS1, IL4, IL4R, IL13, IL12B, CEACAM21 or CAPSL gene regions (http://www.T1DBase.org).
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9 |
19956106
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Here, 257 single-nucleotide polymorphisms (SNPs) have been genotyped in 19 candidate genes (INS, PTPN22, IL2RA, CTLA4, IFIH1, SUMO4, VDR, PAX4, OAS1, IRS1, IL4, IL4R, IL13, IL12B, CEACAM21, CAPSL, Q7Z4c4(5Q), FOXP3, EFHB) in 2300 affected sib-pair families and tested for association with T1D as part of the Type I Diabetes Genetics Consortium's candidate gene study.
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10 |
19956106
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In contrast, no convincing evidence of association was obtained for SUMO4, VDR, PAX4, OAS1, IRS1, IL4, IL4R, IL13, IL12B, CEACAM21 or CAPSL gene regions (http://www.T1DBase.org).
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11 |
20427484
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Although FK506-binding protein 52 (FKBP52) is an established positive regulator of glucocorticoid receptor (GR) activity, an in vivo role for FKBP52 in glucocorticoid control of metabolism has not been reported.
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12 |
20427484
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To address this question, FKBP52(+/-) mice were placed on a high-fat (HF) diet known to induce obesity, hepatic steatosis, and insulin resistance.
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13 |
20427484
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In response to HF, FKBP52(+/-) mice demonstrated a susceptibility to hyperglycemia and hyperinsulinemia that correlated with reduced insulin clearance and reduced expression of hepatic CEACAM1 (carcinoembryonic antigen-related cell adhesion molecule 1), a mediator of clearance.
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14 |
20427484
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Livers of HF-fed mutant mice had high lipid content and elevated expression of lipogenic genes (peroxisome proliferator-activated receptor gamma, fatty acid synthase, and sterol regulatory element-binding protein 1c) and inflammatory markers (TNFalpha).
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15 |
20427484
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Interestingly, mutant mice under HF showed elevated serum corticosterone, but their steatotic livers had reduced expression of gluconeogenic genes (phosphoenolpyruvate carboxy kinase, glucose 6 phosphatase, and pyruvate dehydrogenase kinase 4), whereas muscle and adipose expressed normal to elevated levels of glucocorticoid markers.
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16 |
20427484
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Consistent with this hypothesis, reduced expression of gluconeogenic genes and CEACAM1 was observed in dexamethasone-treated FKBP52-deficient mouse embryonic fibroblast cells.
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17 |
20714323
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Vitamin D inhibits CEACAM1 to promote insulin/IGF-I receptor signaling without compromising anti-proliferative action.
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18 |
20714323
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The insulin/IGF-I receptor represents a signaling target of the carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1) that is implicated in both diabetes and cancer, therefore we hypothesized that VD actions may be mediated through this adhesion molecule.
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20714323
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Insulin/IGF-I-mediated IRS-1 and Akt activation were enhanced by VD treatment.
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20 |
20714323
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Similarly, CEACAM1 downregulation significantly upregulated the insulin and IGF-I receptors and mimicked the effect of VD-mediated enhanced insulin/IGF-I receptor signaling.
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21 |
20714323
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Despite improved insulin/IGF-I signaling, the anti-proliferative actions of VD were preserved in the absence or presence of forced CEACAM1 expression.
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22 |
21949477
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Transgenic liver-specific inactivation of the carcinoembryonic antigen-related cell adhesion molecule (CEACAM1) impairs hepatic insulin clearance and causes hyperinsuline-mia, insulin resistance, elevation in hepatic and serum triglyceride levels, and visceral obesity.
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23 |
21949477
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To discern whether this phenotype reflects a physiological function of CEACAM1 rather than the effect of the dominant-negative transgene, we investigated whether Ceacam1 (gene encoding CEACAM1 protein) null mice with impaired insulin clearance also develop a NASH-like phenotype on a prolonged high-fat diet.
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24 |
21949477
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This demonstrates that CEACAM1-dependent insulin clearance pathways are linked with NASH pathogenesis.
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25 |
23800882
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Carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1) promotes hepatic insulin clearance and endothelial survival.
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26 |
23800882
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Mice lacking Ceacam1 (Cc1-/-) exhibit hyperinsulinemia, which causes insulin resistance and fatty liver.
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27 |
23800882
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Basal aortic eNOS protein and NO content were reduced, in parallel with reduced Akt/eNOS and Akt/Foxo1 phosphorylation.
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28 |
23800882
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Increased NADPH oxidase activity and plasma 8-isoprostane levels revealed oxidative stress and lipid peroxidation in Cc1-/- aortae. siRNA-mediated CEACAM1 knockdown in bovine aortic endothelial cells adversely affected insulin's stimulation of IRS-1/PI 3-kinase/Akt/eNOS activation by increasing IRS-1 binding to SHP2 phosphatase.
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29 |
23800882
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Cc1-/- mice provide a first in vivo demonstration of distinct CEACAM1-dependent hepatic insulin clearance linking hepatic to macrovascular abnormalities.
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