Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

The SIRT6-TDO2/KYNA-mTOR Axis Mediates Synaptic Plasticity and Cognitive Impairments in Fetal Growth Restriction Offspring

ABSTRACT: The SIRT6-TDO2/KYNA-mTOR Axis Mediates Synaptic Plasticity and Cognitive Impairments in Fetal Growth Restriction Offspring

PROVIDER: PRJNA1269035 | ENA |

REPOSITORIES: ENA

ACCESS DATA

Json Xml

Similar Datasets

The SIRT6-TDO2/KYNA-mTOR Axis Mediates Synaptic Plasticity and Cognitive Impairments in Fetal Growth Restriction Offspring

Project description:Fetal growth restriction (FGR) can lead to cognitive impairment in offspring, but the underlying mechanisms remain unclear. This study found that hippocampal excitatory neurons in FGR mice exhibit significantly reduced SIRT6 expression. SIRT6 deficiency upregulates TDO2 via its histone deacetylase activity (independent of ADP-ribosyltransferase function), promoting kynurenic acid (KYNA) accumulation, which suppresses the AKT/mTOR/p70S6K pathway and disrupts synaptic protein synthesis.

2025-06-04 | GSE298372 | GEO

TARGETING NEURONAL FTL1 RESCUES COGNITIVE IMPAIRMENTS IN AGING

Project description:Understanding cellular and molecular drivers of age-related cognitive decline is necessary to identify targets to restore cognition at old age. Here we report that ferritin light chain 1 (FTL1) is a pro-aging neuronal factor that impairs cognition. Targeting neuronal FTL1 in the hippocampi of aged mice elicits synaptic and metabolic-related molecular changes and rescues cognitive impairments. Our data identify neuronal FTL1 as a key molecular mediator of cognitive rejuvenation.

2024-12-01 | GSE249504 | GEO

SIRT6 regulates glucose metabolism and glutamatergic synapse in the mouse retina

Project description:Microarray analysis on total retinal RNA from 15 day old Sirt6 wild-type (WT) and knock-out (KO) mice. The retina is one of the major energy consuming tissues within the body. In this context, synaptic transmission between light-excited rod photoreceptors and downstream ON-bipolar neurons is a highly demanding energy consuming process. Sirtuin 6 (SIRT6), a NAD-dependent deacylase, plays a key role in regulating glucose metabolism. In this study, we demonstrate that SIRT6 is highly expressed in the retina, controlling levels of histone H3K9 and H3K56 acetylation. Notably, despite apparent normal histology, SIRT6 deficiency caused major retinal transmission defects concomitant to changes in expression of glycolytic genes and glutamate receptors, as well as elevated levels of apoptosis in inner retina cells. Our results identify SIRT6 as a critical modulator of retinal function, likely through its effects on chromatin. Microarray analysis of total retinal RNA from 15 day old Sirt6 wild-type (WT) and knock-out (KO) mice with 3 replicates in each condition using the Affymetrix Mouse Gene 2.1 ST array (transcript (gene) version).

2014-07-30 | E-GEOD-56563 | biostudies-arrayexpress

Sirt6 study

Project description:This SuperSeries is composed of the following subset Series: GSE13206: Human shSIRT6 TNF-alpha timecourse GSE13207: Mouse Sirt6-/- TNF-alpha timecourse GSE13208: Mouse Sirt6-/- tissues GSE13209: Mouse Sirt6-/- RelA+/- tissues Refer to individual Series

2010-06-24 | E-GEOD-13272 | biostudies-arrayexpress

Expression data from SIRT6 knockout, young WT and old WT mice brains

Project description:Brain-specific SIRT6-KO mice present increased DNA damage, learning impairments, and neurodegenerative phenotypes, placing SIRT6 as a key protein in preventing neurodegeneration. In the aging brain, SIRT6 levels/activity decline, which is accentuated in Alzheimer's patients. To understand SIRT6 roles in transcript pattern changes, we analyzed transcriptomes of young WT, old WT and young SIRT6-KO mice brains, and found changes in gene expression related to healthy and pathological aging. In addition, we traced these differences in human and mouse samples of Alzheimer's and Parkinson's diseases, healthy aging and calorie restriction (CR). Our results define four gene expression categories that change with age in a pathological or non-pathological manner, which are either reversed or not by CR. We found that each of these gene expression categories is associated with specific transcription factors, thus serving as potential candidates for their category-specific regulation. One of these candidates is YY1, which we found to act together with SIRT6 regulating specific processes. We thus argue that SIRT6 has a pivotal role in preventing age-related transcriptional changes in brains. Therefore, reduced SIRT6 activity may drive pathological age-related gene expression signatures in the brain.

2021-06-18 | GSE178432 | GEO

High-frequency head impacts cause chronic synaptic adaptations and long-term cognitive impairment [Memantine study]

Project description:The goal of this study is to use bulk RNA-sequencing of to observe the effects of High Frequency Head Impacts contibuting to cognitive dysfunction in mice. Our results show HF-HI can alter brain function through synaptic adaptation. HF-HI mice develop chronic cognitive impairments in the absence of traditional brain trauma pathology, and transcriptomic profiling reveals that synapses are a primary target of this effect.

2021-01-29 | GSE165759 | GEO

SIRT6 regulates glucose metabolism and glutamatergic synapse in the mouse retina

2014-07-30 | GSE56563 | GEO

High-frequency head impacts cause chronic synaptic adaptations and long-term cognitive impairment [1m post-HFHI]

2021-01-29 | GSE165758 | GEO

High-frequency head impacts cause chronic synaptic adaptations and long-term cognitive impairment [24h post-HFHI]

2021-01-29 | GSE165757 | GEO

Expression data from WT SIRT6 and SIRT6 albumin CRE conditional mice

Project description:Microarray analysis of liver tissue from WT SIRT6 and conditional knockout of SIRT6 using albumin-Cre (SIRT6Co/Co ;Alb-Cre) at 2 and 8 months of age RNA was extracted from mouse liver tissue at 2 and 8 months of age. RNA from three pairs of WT SIRT6 and SIRT6Co/Co ;Alb-Cre mice was combined and hybridized to Affymetrix mouse gene 1.0 ST arrays.

2010-06-08 | E-GEOD-21965 | biostudies-arrayexpress

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data