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TranscriptomicsMito-protective autophagy is impaired in erythroid cells of aged mtDNA-mutator mice
Somatic mitochondrial DNA (mtDNA) mutations contribute to the pathogenesis of age-related disorders, including myelodysplastic syndromes (MDS). The accumulation of mitochondria harboring mtDNA mutations in patients with these disorders suggests a failure of normal mitochondrial quality-control syste...
ORGANISM(S): Mus musculus 
2015-04-21 | E-GEOD-57761 | biostudies-arrayexpress
TranscriptomicsTranscription profiling of mouse cochlea to investigate the role of mtDNA mutations in age-related hearing loss in mice carrying a mutator DNA polymerase gamma
Mitochondrial DNA (mtDNA) mutations may contribute to aging and age-related disorders. Previously, we created mice expressing a proofreading-deficient version of the mtDNA polymerase gamma (Polg) which accumulate age-related mtDNA mutations and display premature aging. Here we performed microarray g...
ORGANISM(S): Mus musculus 
2008-11-07 | E-GEOD-4866 | biostudies-arrayexpress
TranscriptomicsCells following mtDNA loss, or NAR1 repression
Expression analysis of cells the given amount of time after mtDNA was lost (or Nar1 expression was repressed) compared to pretreatment (or NAR1 being fully expressed). One time course experiment (Cells a given amount of time following mtDNA loss compared to cells with intact mtDNA), with 2 two condi...
ORGANISM(S): Saccharomyces cerevisiae 
2010-06-21 | E-GEOD-15302 | biostudies-arrayexpress
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 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
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
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
TranscriptomicsExpression data from cytoplasmic hybrid (cybrid) and rho0 cells
Mitochondria have been implicated in insulin resistance and beta cell dysfunction, both of which comprise the core pathophysiology of type 2 diabetes mellitus (T2DM). It has also recently been found that mtDNA haplogroups are distinctively associated with susceptibility to T2DM at least in Koreans a...
ORGANISM(S): Homo sapiens 
2012-03-31 | E-GEOD-26244 | 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
TranscriptomicsReduced protein kinase A signaling can diminish the nuclear transcriptional response to mtDNA damage in Saccharomyces cerevisiae
Damage to the mitochondrial genome (mtDNA) severely affects the cell and causes disease. Mutations to mtDNA also accumulate throughout the lifespan of many organisms and may be a proximal cause of aging. There is no effective treatment for ailments caused by mtDNA mutation. Since mitochondrial funct...
ORGANISM(S): Saccharomyces cerevisiae 
2015-08-07 | E-GEOD-71252 | biostudies-arrayexpress
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