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Zinc Finger Protein 407 (ZFP407) Regulates Insulin-Stimulated Glucose Uptake and Glucose Transporter 4 (Glut4) mRNA

ABSTRACT: Using RNA-Seq, we compared the transcriptomes of differentiated 3T3-L1 adipocytes for control and ZFP407-deficient cells

ORGANISM(S): Mus musculus

PROVIDER: GSE64757 | GEO | 2015/01/16

SECONDARY ACCESSION(S): PRJNA271802

REPOSITORIES: GEO

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Zinc Finger Protein 407 (ZFP407) Regulates Insulin-Stimulated Glucose Uptake and Glucose Transporter 4 (Glut4) mRNA

Project description:Using RNA-Seq, we compared the transcriptomes of differentiated 3T3-L1 adipocytes for control and ZFP407-deficient cells Differentiated 3T3-L1 cells were electroporated with control or 1 of 2 Zfp407 siRNAs. Six independent siRNA electroporations were conducted for the control siRNA and 3 independent electroporations were conducted for each Zfp407 siRNA.

2015-01-16 | E-GEOD-64757 | biostudies-arrayexpress

Zinc finger protein 407 (ZFP407) regulates insulin-stimulated glucose uptake and glucose transporter 4 (Glut4) mRNA.

Project description: Not available

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Adipose Rab10 Knockout Causes Insulin Resistance through Impaired Glucose Uptake

Project description:Insulin action in adipocytes affects whole-body insulin sensitivity. Studies of adipose-specific Glut4 knockout mice have established that adipose Glut4 contributes to the control of systemic glucose homeostasis. Presumably, this reflects a role for Glut4-mediated glucose transport in the regulation of secreted adipokines. In cultured 3T3-L1 adipocytes, Rab10 GTPase is required for insulin-stimulated translocation of Glut4 (Sano et al., 2007). The physiological importance of adipose Rab10 and the significance of its role in the control of Glut4 vesicle trafficking in vivo are unknown. Here we report that adipocytes from adipose-specific Rab10 knockout mice have a ~50% reduction in glucose uptake and Glut4 translocation to the cell surface in response to insulin, demonstrating a role for Rab10 in Glut4 trafficking. Moreover, hyperinsulinemic-euglycemic clamp shows decreased whole-body glucose uptake as well as impaired suppression of hepatic glucose production in adipose Rab10 knockout mice. Thus, fully functional Glut4 vesicle trafficking in adipocytes is critical for maintaining insulin sensitivity. Comparative transcriptome analysis of perigonadal adipose tissue demonstrates significant transcriptional similarities between adipose Rab10 knockout mice and adipose Glut4 knockout mice, consistent with the notion that the phenotypic similarities between the two models are mediated by reduced insulin-stimulated glucose transport into adipocytes. Transcriptome sequencing of perigonadal white adipose tissue

2016-06-30 | E-GEOD-70123 | biostudies-arrayexpress

Adipose Rab10 Knockout Causes Insulin Resistance through Impaired Glucose Uptake

2016-06-30 | GSE70123 | GEO

GLUT8 is a glucose transporter responsible for insulin-stimulated glucose uptake in the blastocyst.

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Insulin-stimulated glucose uptake in recombinant MMP12 treated 3T3-L1 cells

Project description:Microbiota contributes to induction of type 2 diabetes by high-fat/high-sugar (HFHS), but which organs/pathways are impacted by microbiota remains unknown. Using multi-organ network and transkingdom analyses, we found that microbiota-dependent. impairment of OXPHOS /mitochondria in white adipose tissue (WAT) plays a primary role in regulating systemic glucose metabolism. The follow-up analysis established that Mmp12+ macrophages link microbiota-dependent inflammation and OXPHOS damage in WAT. Moreover, the molecular signature of Mmp12+ macrophages in WAT was associated with insulin resistance in obese patients. Next, we tested functional effects of MMP12 and found that Mmp12 genetic deficiency or MMP12 inhibition improved glucose metabolism in conventional, but not in germfree mice. MMP12 treatment induced insulin resistance in adipocytes. TLR2-ligands present in Oscillibacter valericigenes bacteria, which are expanded by HFHS, induce Mmp12 in WAT macrophages in a MYD88-ATF3-dependent manner. Thus, HFHS induces Mmp12+ macrophages and MMP12, representing a microbiota-dependent bridge between inflammation and mitochondrial damage in WAT and causing insulin resistance. doi: https://doi.org/10.1084/jem.20220017

2022-05-27 | GSE203489 | GEO