Journal ArticleDOI
A semi-automated method for isolating functionally intact mitochondria from cultured cells and tissue biopsies
Sabine Schmitt,Friederike Saathoff,Lilja Meissner,Eva-Maria Schropp,Josef Lichtmannegger,Sabine Schulz,Carola Eberhagen,Sabine Borchard,Michaela Aichler,Jerzy Adamski,Nikolaus Plesnila,Simon Rothenfusser,Guido Kroemer,Hans Zischka +13 more
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TLDR
This work presents an efficient method to isolate functionally active, intact mitochondria from cultured or primary cells and minute tissue samples in a rapid, highly reproducible manner.About:
This article is published in Analytical Biochemistry.The article was published on 2013-12-01. It has received 52 citations till now.read more
Citations
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Selenium Utilization by GPX4 Is Required to Prevent Hydroperoxide-Induced Ferroptosis
Irina Ingold,Carsten Berndt,Sabine Schmitt,Sebastian Doll,Gereon Poschmann,Katalin Buday,Antonella Roveri,Xiaoxiao Peng,Florencio Porto Freitas,Tobias Seibt,Lisa Mehr,Michaela Aichler,Axel Walch,Daniel Lamp,Martin Jastroch,Sayuri Miyamoto,Wolfgang Wurst,Wolfgang Wurst,Fulvio Ursini,Elias S.J. Arnér,Noelia Fradejas-Villar,Ulrich Schweizer,Hans Zischka,José Pedro Friedmann Angeli,Marcus Conrad +24 more
TL;DR: It is demonstrated that selenolate-based catalysis of the essential mammalian selenoprotein GPX4 is unexpectedly dispensable for normal embryogenesis and the survival of a specific type of interneurons emerges to exclusively depend on selenocysteine-containing GPX 4, thereby preventing fatal epileptic seizures.
Journal ArticleDOI
Mitochondrial Genome Acquisition Restores Respiratory Function and Tumorigenic Potential of Cancer Cells without Mitochondrial DNA
An S. Tan,James W. Baty,Lan-Feng Dong,Ayenachew Bezawork-Geleta,Berwini Endaya,Jacob Goodwin,Martina Bajzikova,Jaromira Kovarova,Martin Peterka,Bing Yan,Elham Alizadeh Pesdar,Margarita Sobol,Anatolyj Filimonenko,Shani Stuart,Magdalena Vondrusova,Katarina Kluckova,Karishma Sachaphibulkij,Jakub Rohlena,Pavel Hozák,Jaroslav Truksa,David Eccles,Larisa M. Haupt,Lyn R. Griffiths,Jiri Neuzil,Jiri Neuzil,Michael V. Berridge +25 more
TL;DR: This paper showed that tumor cells without mitochondrial DNA (mtDNA) showed delayed tumor growth, and that tumor formation is associated with acquisition of mtDNA from host cells, leading to partial recovery of mitochondrial function in cells derived from primary tumors grown from cells without mtDNA and a shorter lag in tumor growth.
Journal ArticleDOI
A pathway coordinated by DELE1 relays mitochondrial stress to the cytosol
Evelyn Fessler,Eva-Maria Eckl,Sabine Schmitt,Igor Alves Mancilla,Matthias F. Meyer-Bender,Monika Hanf,Julia Philippou-Massier,Stefan Krebs,Hans Zischka,Lucas T. Jae +9 more
TL;DR: Haploid genetic screening of cells under different types of mitochondrial perturbation shows that a pathway involving OMA1, DELE1 and the eIF2α kinase HRI communicates mitochondrial stress to the cytosol to trigger the integrated stress response.
Journal ArticleDOI
Reactivation of Dihydroorotate Dehydrogenase-Driven Pyrimidine Biosynthesis Restores Tumor Growth of Respiration-Deficient Cancer Cells.
Martina Bajzikova,Martina Bajzikova,Jaromira Kovarova,Ana R Coelho,Ana R Coelho,Stepana Boukalova,Sehyun Oh,Katerina Rohlenova,David Svec,Sona Hubackova,Berwini Endaya,Kristyna Judasova,Ayenachew Bezawork-Geleta,Katarina Kluckova,Laurent Chatre,Laurent Chatre,Renata Zobalova,Anna Novakova,Katerina Vanova,Zuzana Ezrova,Zuzana Ezrova,Ghassan J. Maghzal,Ghassan J. Maghzal,Silvia Magalhaes Novais,Silvia Magalhaes Novais,Marie Olšinová,Linda Krobova,Yong Jin An,Eliska Davidova,Eliska Davidova,Zuzana Nahacka,Margarita Sobol,Teresa Cunha-Oliveira,Cristian Sandoval-Acuña,Hynek Strnad,Tongchuan Zhang,Thanh Huynh,Teresa L. Serafim,Pavel Hozák,Vilma A. Sardão,Werner J.H. Koopman,Miria Ricchetti,Miria Ricchetti,Paulo J. Oliveira,Frantisek Kolar,Mikael Kubista,Jaroslav Truksa,Katerina Dvorakova-Hortova,Katerina Dvorakova-Hortova,Karel Pacak,Robert Gürlich,Roland Stocker,Roland Stocker,Yaoqi Zhou,Michael V. Berridge,Sunghyouk Park,Lan-Feng Dong,Jakub Rohlena,Jiri Neuzil,Jiri Neuzil +59 more
TL;DR: It is shown that pyrimidine biosynthesis dependent on respiration-linked dihydroorotate dehydrogenase (DHODH) is required to overcome cell-cycle arrest, while mitochondrial ATP generation is dispensable for tumorigenesis, pointing to inhibitors of DHODH as potential anti-cancer agents.
Journal ArticleDOI
Activation of Autophagy, Observed in Liver Tissues From Patients With Wilson Disease and From ATP7B-Deficient Animals, Protects Hepatocytes From Copper-Induced Apoptosis
Elena V. Polishchuk,Assunta Merolla,Josef Lichtmannegger,Alessia Romano,Alessia Indrieri,Ekaterina Y. Ilyechova,Mafalda Concilli,Rossella De Cegli,Roberta Crispino,Marta Mariniello,Raffaella Petruzzelli,Giusy Ranucci,Raffaele Iorio,Federico Pietrocola,Claudia Einer,Sabine Borchard,Andree Zibert,Hartmut Schmidt,Elia Di Schiavi,Ludmila V. Puchkova,Brunella Franco,Guido Kroemer,Hans Zischka,Roman S. Polishchuk +23 more
TL;DR: ATP7B-deficient hepatocytes, such as in those in patients with WD, activate autophagy in response to copper overload to prevent copper-induced apoptosis, and agents designed to activate this autophagic pathway might decrease copper toxicity in Patients with WD.
References
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Journal ArticleDOI
A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye binding
TL;DR: This assay is very reproducible and rapid with the dye binding process virtually complete in approximately 2 min with good color stability for 1 hr with little or no interference from cations such as sodium or potassium nor from carbohydrates such as sucrose.
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HIGH-YIELD PREPARATION OF ISOLATED RAT LIVER PARENCHYMAL CELLS: A Biochemical and Fine Structural Study
M. N. Berry,Daniel S. Friend +1 more
TL;DR: Cytoplasmic vacuolization in a small percentage of cells and potassium loss are the only indications of cell injury detected, and the isolated cells are comparable to normal hepatic parenchymal cells in situ in appearance and function.
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The Pathophysiology of Mitochondrial Cell Death
Douglas R. Green,Guido Kroemer +1 more
TL;DR: The therapeutic induction of MOMP may restore apoptosis in cancer cells in which it is disabled, and the general rules governing the pathophysiology and controversial issues regarding its regulation are discussed.
Journal ArticleDOI
Mitochondria: In Sickness and in Health
TL;DR: This work provides a current view of how mitochondrial functions impinge on health and disease and identifies mitochondrial dysfunction as a key factor in a myriad of diseases, including neurodegenerative and metabolic disorders.