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Browsing by Author "Ogmundsdottir, Margret H."

Browsing by Author "Ogmundsdottir, Margret H."

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  • Greer, Stephanie U.; Chen, Jiamin; Ogmundsdottir, Margret H.; Ayala, Carlos; Lau, Billy T.; Delacruz, Richard Glenn C.; Sandoval, Imelda T.; Jones, David A.; Haslem, Derrick S.; Romero, Robin; Fulde, Gail; Bell, John M.; Jonasson, Jon G.; Steingrimsson, Eirikur; Ji, Hanlee P.; Nadauld, Lincoln D. (2022-06-20)
    Autophagy is a housekeeping mechanism tasked with eliminating misfolded proteins and damaged organelles to maintain cellular homeostasis. Autophagy deficiency results in increased oxidative stress, DNA damage and chronic cellular injury. Among the core ...
  • García-Llorca, Andrea; Gudmundsdottir Aspelund, Snaefridur; Ogmundsdottir, Margret H; Steingrimsson, Eirikur; Eysteinsson, Thor (Springer Science and Business Media LLC, 2019-10-28)
    Mutations in the microphthalmia-associated transcription factor (Mitf) gene can cause retinal pigment epithelium (RPE) and retinal dysfunction and degeneration. We examined retinal and RPE structure and function in 3 month old mice homo- or heterozygous ...
  • Ballesteros Alvarez, Josue; Dilshat, Ramile; Fock, Valerie; Möller, Katrin; Karl, Ludwig; LARUE, Lionel; Ogmundsdottir, Margret H; Steingrimsson, Eirikur (Public Library of Science (PLoS), 2020-09-03)
    The MITF, TFEB, TFE3 and TFEC (MiT-TFE) proteins belong to the basic helix-loop-helix family of leucine zipper transcription factors. MITF is crucial for melanocyte development and differentiation, and has been termed a lineage-specific oncogene in ...
  • Möller, Katrin; Sigurbjornsdottir, Sara; Arnþórsson, Ásgeir O.; Pogenberg, Vivian; Dilshat, Ramile; Fock, Valerie; Brynjólfsdóttir, Sólveig Hlín; Bindesboll, Christian; Bessadóttir, Margrét; Ögmundsdóttir, Helga M.; Simonsen, Anne; Larue, Lionel; Wilmanns, Matthias; Thorsson, Vésteinn; Steingrimsson, Eirikur; Ogmundsdottir, Margret H (Springer Science and Business Media LLC, 2019-01-31)
    The MITF transcription factor is a master regulator of melanocyte development and a critical factor in melanomagenesis. The related transcription factors TFEB and TFE3 regulate lysosomal activity and autophagy processes known to be important in ...
  • Zhang, T.; Zhou, Q.; Ogmundsdottir, Margret H; Möller, Katrin; Siddaway, R.; Larue, L.; Hsing, M.; Kong, S. W.; Goding, C. R.; Palsson, Arnar; Steingrimsson, Eirikur; Pignoni, F. (The Company of Biologists, 2015-06-19)
    The v-ATPase is a fundamental eukaryotic enzyme that is central to cellular homeostasis. Although its impact on key metabolic regulators such as TORC1 is well documented, our knowledge of mechanisms that regulate v-ATPase activity is limited. Here, we ...
  • Bindesbøll, Christian; Aas, Aleksander; Ogmundsdottir, Margret H; Pankiv, Serhiy; Reine, Trine; Zoncu, Roberto; Simonsen, Anne (Springer Science and Business Media LLC, 2020-03-11)
    Dysregulated cholesterol homeostasis promotes the pathology of atherosclerosis, myocardial infarction and strokes. Cellular cholesterol is mainly regulated at the transcriptional level by SREBP2, but also through uptake of extracellular cholesterol ...
  • Singh, Francois; Wilhelm, Lea; Prescott, Alan R.; Ostacolo, Kevin; Zhao, Jin-Feng; Ogmundsdottir, Margret H.; Ganley, Ian G. (Informa, 2024-03-11)
    PINK1, mutated in familial forms of Parkinson’s disease, initiates mitophagy following mitochondrial depolarization. However, it is difficult to monitor this pathway physiologically in mice as loss of PINK1 does not alter basal mitophagy levels in most ...
  • Ogmundsdottir, Margret H; Fock, Valerie; Sooman, L.; Pogenberg, V.; Dilshat, R.; Bindesbøll, C.; Ögmundsdóttir, Helga M.; Simonsen, A.; Wilmanns, M.; Steingrimsson, Eirikur (Springer Science and Business Media LLC, 2018-09-26)
    Autophagy is a degradation pathway important for cellular homeostasis. The E1-like enzyme ATG7 is a key component of the autophagy machinery, with the main function of mediating the lipidation of LC3/GABARAP during autophagosome formation. By analysing ...