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MetabolomicsGenotype to phenotype: Diet-by-mitochondrial DNA haplotype interactions drive metabolic flexibility and organismal fitness
Diet may be modified seasonally or by biogeographic, demographic or cultural shifts. It can differentially influence mitochondrial bioenergetics, retrograde signalling to the nuclear genome, and anterograde signalling to mitochondria. All these interactions have the potential to influence the freque...
2018-11-07 | MTBLS724 | MetaboLights
TranscriptomicsInsights into N-calls of mitochondrial DNA sequencing using MitoChip v2.0
Background: Developments in DNA resequencing microarrays include mitochondrial DNA (mtDNA) sequencing and mutation detection. During automated analysis to sequence mtDNA, bases can be identified as wildtype, variant, or there may be a failure to assign a base (N-call) when compared to the mtDNA refe...
ORGANISM(S): Homo sapiens 
2012-05-17 | E-GEOD-29550 | biostudies-arrayexpress
GenomicsDNA-seq of mitochondrial DNA from mouse heart that is both heart SOD2 knockout and deficient for mitochondrial DNA repair
To study whether increase in mitochondrial oxidative stress (SOD2 removal) and decrease in mitochondrial DNA repair (Ogg1 dMTS) results into increase in mitochondrial DNA mutation load. Oxidative stress has been suggested to induce mutations in mtDNA. To verify this, we extracted and sequenced (Illu...
ORGANISM(S): Mus musculus 
2018-07-13 | E-MTAB-6533 | biostudies-arrayexpress
GenomicsDNA-seq of mitochondrial DNA from liver of OGG1 and MUTYH deficient mice that have been bred for five consecutive generations
Studying whether removal of base-excision repair from mitochondria will result into increase in mitochondrial DNA (mtDNA) mutation load. The endogenous genes of OGG1 and MUTYH DNA glycosylases were modified to lack the genomic region encoding for the predicted mitochondrial targeting sequence. The m...
ORGANISM(S): Mus musculus 
2018-07-13 | E-MTAB-6532 | biostudies-arrayexpress
MetabolomicsMitochondrial metabolism sustains DNMT3A-R882-mutant clonal haematopoiesis
Somatic DNMT3A R882 codon mutations drive the most common form of clonal haematopoiesis (CH) and are associated with increased acute myeloid leukaemia (AML) risk1,2. Preventing expansion of DNMT3A-R882-mutant haematopoietic stem/progenitor cells (HSPCs) may therefore avert progression to AML. To ide...
2025-02-06 | MTBLS12201 | MetaboLights
TranscriptomicsMitochondrial DNA mutations induce supression of nuclear encoded mitochondrial Genes in skeletal muscle
To identify and analyze mtDNA mutation-responsive genes, a comparison of gastrocnemius muscle tissues from WT (control) and D257A mice was conducted. We examined changes in gene expression in the muscle associated with mtDNA mutations. 1) Types of experiments: a) Effect of mitochondrial DNA (mtDNA) ...
ORGANISM(S): Mus musculus 
2010-05-27 | E-GEOD-21189 | biostudies-arrayexpress
TranscriptomicsTranscriptomic analysis of human cybrid cell lines harboring increasing levels of the mitochondrial DNA (mtDNA) 3243A>G mutation
Mitochondria generate signals of adaptation that regulate nuclear genes expression via retrograde signaling. But this phenomenon is complexified when qualitatively different mitochondria and mitochondrial DNA (mtDNA) coexist within cells. Although this cellular state of heteroplasmy leads to diver...
ORGANISM(S): Homo sapiens 
2014-09-02 | E-GEOD-56158 | biostudies-arrayexpress
ProteomicsEnabling phenotypic drug discovery for neurological mitochondrial DNA disorders with patient-derived neural progenitor cells
Mitochondrial DNA (mtDNA) mutations predominantly cause neurological diseases. Searching for therapeutic strategies is hindered by the absence of viable neural model systems due to the challenges of engineering mtDNA. We demonstrate that neural progenitor cells (NPCs), rapidly obtained from human in...
ORGANISM(S): Homo Sapiens (ncbitaxon:9606) 
2017-03-31 | MSV000080849 | MassIVE
MetabolomicsRibosomal mistranslation leads to silencing of the unfolded protein response and increased mitochondrial biogenesis

Translation fidelity is the limiting factor in the accuracy of gene expression. With an estimated frequency of 10-4, errors in mRNA decoding occur in a mostly stochastic manner. Little is known about the response of higher eukaryotes to chronic loss of ribosomal accuracy as per an increase in the...

2019-09-17 | MTBLS106 | MetaboLights
ProteomicsACONITASE 3 is part of the ANAC017 transcription factor-dependent mitochondrial dysfunction response
Mitochondria are tightly embedded within metabolic and regulatory networks that optimize plant performance in response to environmental challenges. The best-known mitochondrial retrograde signaling pathway involves stress-induced activation of the transcription factor NAC DOMAIN CONTAINING PROTEIN 1...
ORGANISM(S): Arabidopsis Thaliana 
2022-03-14 | PXD018881 | panorama
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