Browsing by Author "Bhujabal, Zambarlal Babanrao"

Now showing items 1-4 of 4

    • High-resolution visualization and assessment of basal and OXPHOS-induced mitophagy in H9c2 cardiomyoblasts 

      Godtliebsen, Gustav; Larsen, Kenneth Bowitz; Bhujabal, Zambarlal Babanrao; Opstad, Ida Sundvor; Nager Grifo, Mireia; Punnakkal, Abhinanda Ranjit; Kalstad, Trine; Olsen, Randi; Lund, trine; Prasad, Dilip K.; Agarwal, Krishna; Myrmel, Truls; Birgisdottir, Åsa birna (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-07-05)
      Mitochondria are susceptible to damage resulting from their activity as energy providers. Damaged mitochondria can cause harm to the cell and thus mitochondria are subjected to elaborate quality-control mechanisms including elimination via lysosomal degradation in a process termed mitophagy. Basal mitophagy is a house-keeping mechanism fine-tuning the number of mitochondria according to the metabolic ...

    • Membrane Atg8ylation, stress granule formation, and MTOR regulation during lysosomal damage 

      Jia, Jingyue; Wang, Fulong; Bhujabal, Zambarlal Babanrao; Peters, Ryan; Mudd, Michal; Duque, Thabata; Allers, Lee; Javed, Ruheena; Salemi, Michelle; Behrends, Christian; Phinney, Brett; Johansen, Terje; Deretic, Vojo (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-11-29)
      The functions of mammalian Atg8 proteins (mATG8s) expand beyond canonical autophagy and include processes collectively referred to as Atg8ylation. Global modulation of protein synthesis under stress conditions is governed by MTOR and liquid-liquid phase separated condensates containing ribonucleoprotein particles known as stress granules (SGs). We report that lysosomal damage induces SGs acting as ...

    • Stress granules and mTOR are regulated by membrane atg8ylation during lysosomal damage 

      Jia, Jingyue; Wang, Fulong; Bhujabal, Zambarlal Babanrao; Peters, Ryan; Mudd, Michal; Duque, Thabata; Allers, Lee; Javed, Ruheena; Salemi, Michelle; Behrends, Christian; Phinney, Brett; Johansen, Terje; Deretic, Vojo (Journal article; Tidsskriftartikkel; Peer reviewed, 2022)
      We report that lysosomal damage is a hitherto unknown inducer of stress granule (SG) formation and that the process termed membrane atg8ylation coordinates SG formation with mTOR inactivation during lysosomal stress. SGs were induced by lysosomedamaging agents including SARS-CoV-2ORF3a, Mycobacterium tuberculosis, and proteopathic tau. During damage, mammalian ATG8s directly interacted with the ...

    • TRIM27 is an autophagy substrate facilitating mitochondria clustering and mitophagy via phosphorylated TBK1 

      Garcia, Juncal Garcia; Berge, Anne Kristin McLaren; Overå, Katrine Stange; Larsen, Kenneth Bowitz; Bhujabal, Zambarlal Babanrao; Brech, Andreas; Abudu, Yakubu Princely; Lamark, Trond; Johansen, Terje; Sjøttem, Eva (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-09-16)
      Tripartite motif-containing protein 27 (TRIM27/also called RFP) is a multifunctional ubiquitin E3 ligase involved in numerous cellular functions, such as proliferation, apoptosis, regulation of the NF-kB pathway, endosomal recycling and the innate immune response. TRIM27 interacts directly with TANK-binding kinase 1 (TBK1) and regulates its stability. TBK1 in complex with autophagy receptors is ...