Browsing by Author "Brouwers, Nathalie"

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  • Defects in lipid homeostasis reflect the function of TANGO2 in phospholipid and neutral lipid metabolism
    Lujan, Agustin Leonardo; Foresti, Ombretta; Sugden, Conor; Brouwers, Nathalie; Farre, Alex Mateo; Vignoli, Alessio; Azamian, Mahshid; Turner, Alicia; Wojnacki, José; Malhotra, Vivek (eLife, 2023)
    We show that TANGO2 in mammalian cells localizes predominantly to mitochondria and partially at mitochondria sites juxtaposed to lipid droplets (LDs) and the endoplasmic reticulum. HepG2 cells and fibroblasts of patients ...
  • ESCRT-III drives the final stages of CUPS maturation for unconventional protein secretion
    Curwin, Amy; Brouwers, Nathalie; Alonso Y Adell, Manuel; Teis, David; Turacchio, Gabriele; Parashuraman, Seetharaman; Ronchi, Paolo; Malhotra, Vivek (eLife, 2016)
    The unconventional secretory pathway exports proteins that bypass the endoplasmic reticulum. In Saccharomyces cerevisiae, conditions that trigger Acb1 secretion via this pathway generate a Grh1 containing compartment ...
  • GRASP55 and UPR control interleukin-1β aggregation and secretion
    Chiritoiu, Marioara; Brouwers, Nathalie; Turacchio, Gabriele; Pirozzi, Marianella; Malhotra, Vivek (Elsevier, 2019)
    Signal-sequence-lacking interleukin (IL)-1β, is cleaved by caspase-1 to mature mIL-1β, which is secreted, without entering the endoplasmic reticulum. We report that macrophages of GRASP55-/- mice are defective in mIL-1β ...
  • KChIP3 coupled to Ca2+ oscillations exerts a tonic brake on baseline mucin release in the colon
    Cantero Recasens, Gerard, 1984-; Butnaru, Cristian M.; Valverde, M. A. (Miguel Ángel), 1963-; Naranjo, José R.; Brouwers, Nathalie; Malhotra, Vivek (eLife, 2018)
    Regulated mucin secretion from specialized goblet cells by exogenous agonist-dependent (stimulated) and -independent (baseline) manner is essential for the function of the epithelial lining. Over extended periods, baseline ...
  • New factors for protein transport identified by a genome-wide CRISPRi screen in mammalian cells
    Bassaganyas Bars, Laia, 1985-; Popa, Stephanie J.; Horlbeck, Max; Puri, Claudia; Stewart, Sarah E.; Campelo, Felix; Ashok, Anupama, 1985-; Butnaru, Cristian M.; Brouwers, Nathalie; Heydari, Kartoosh; Ripoche, Jean; Weissman, Jonathan; Rubinsztein, David C.; Schekman, Randy; Malhotra, Vivek; Moreau, Kevin; Villeneuve, Julien (Rockefeller University Press, 2019)
    Protein and membrane trafficking pathways are critical for cell and tissue homeostasis. Traditional genetic and biochemical approaches have shed light on basic principles underlying these processes. However, the list of ...
  • Reactive oxygen species triggers unconventional secretion of antioxidants and Acb1
    Cruz Garcia, David; Brouwers, Nathalie; Malhotra, Vivek; Curwin, Amy (Rockefeller University Press, 2020)
    Nutrient deprivation triggers the release of signal-sequence-lacking Acb1 and the antioxidant superoxide dismutase 1 (SOD1). We now report that secreted SOD1 is functionally active and accompanied by export of other ...
  • Sodium channel TRPM4 and sodium/calcium exchangers (NCX) cooperate in the control of Ca2+-induced mucin secretion from goblet cells
    Cantero Recasens, Gerard, 1984-; Butnaru, Cristian M.; Brouwers, Nathalie; Mitrovic, Sandra; Valverde, M. A. (Miguel Ángel), 1963-; Malhotra, Vivek (American Society for Biochemistry and Molecular Biology (ASBMB), 2019)
    Regulated mucin secretion is essential for the formation of the mucus layer that protects the underlying epithelial cells from foreign particles. Alterations in the quantity or quality of secreted mucins are therefore ...