Notre Dame Research

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  • Author(s):
    Francesca Manzoni, Claudia Muller, Jonathan DeAssis, Deborah Lew, W. Matthew Leevy, Silvia Finnegan
    Abstract:

    Phosphatidylserine externalization is an early molecular signature for apoptosis. In many retinal degenerative diseases, photoreceptor neurons die by apoptosis. Here, we report utility of the phosphatidylserine-binding conjugate of Bis(zinc(II)-dipicolylamine (Zn-DPA) with Texas-red (PSVue-550) in transiently labeling apoptotic photoreceptors in living pigmented or albino rats and mice with retinal degeneration. Applying PSVue-550 as eyedrop is non-toxic and eliminates need for intraocular in…

    Date Published:
    2019-02
    Record Visibility:
    Public
  • Author(s):
    Cassandra L. Gorsuch, Patrick Fagan, Chan Lee, Sun Eun Kim, Jens C. Hamann, Joshua A. Mason, Kelsey J. Weigel, Matyas Abel Tsegaye, Luqun Shen, Sydney Shuff, Junjun Zuo, Stephan Hu, Lei jJiang, Sarah Chapman, W. Matthew Leevy, Ralph J. DeBerardinis, Michael Overholtzer, Zachary T. Schafer
    Abstract:

    For cancer cells to survive during extracellular matrix (ECM) detachment, they must inhibit anoikis and rectify metabolic deficiencies that cause non-apoptotic cell death. Previous studies in ECM-detached cells have linked non-apoptotic cell death to reactive oxygen species (ROS) generation, although the mechanistic underpinnings of this link remain poorly defined. Here, we uncover a role for receptor-interacting protein kinase 1 (RIPK1) in the modulation of ROS and cell viability during ECM …

    Date Published:
    2018-03
    Record Visibility:
    Public