Biomaterial Database

Electrophoretic analysis of the mitochondrial outer membrane rupture induced by permeability transition. 2008

Hans Zischka, and Nathanael Larochette, and Florian Hoffmann, and Daniela Hamöller, and Nora Jägemann, and Josef Lichtmannegger, and Luise Jennen, and Josef Müller-Höcker, and Frigga Roggel, and Martin Göttlicher, and Angelika M Vollmar, and Guido Kroemer

Institute of Toxicology, Helmholtz Center Munich, German Research Center for Environmental Health, 85764 Oberschleissheim, Germany. zischka@helmholtz-muenchen.de

A pathological increase of the permeability of the mitochondrial membranes may culminate in the irreversible rupture of the mitochondrial outer membrane. Such a permeability transition is lethal because it results in the release of death-inducing molecules from mitochondria and/or metabolic failure. Current methods to assess this outer membrane damage are mostly indirect or scarcely representative of the overall mitochondrial population. Here we present an analytical and preparative approach using free flow electrophoresis to directly distinguish rat liver mitochondria that have undergone the permeability transition from unaffected organelles or from organelles that are damaged to a minor degree. Mitochondrial populations, which considerably differ in outer membrane integrity or cytochrome c content, were separated by this means. We further show that the relative abundance of each population depends on the dose of the permeability transition inducer and the duration of the treatment time. Finally, we have employed this approach to investigate the impairment of mitochondria that were isolated from livers subjected to ischemia/reperfusion damage.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D008930	Mitochondria, Liver	Mitochondria in hepatocytes. As in all mitochondria, there are an outer membrane and an inner membrane, together creating two separate mitochondrial compartments: the internal matrix space and a much narrower intermembrane space. In the liver mitochondrion, an estimated 67% of the total mitochondrial proteins is located in the matrix. (From Alberts et al., Molecular Biology of the Cell, 2d ed, p343-4)	Liver Mitochondria,Liver Mitochondrion,Mitochondrion, Liver
D002463	Cell Membrane Permeability	A quality of cell membranes which permits the passage of solvents and solutes into and out of cells.	Permeability, Cell Membrane
D004586	Electrophoresis	An electrochemical process in which macromolecules or colloidal particles with a net electric charge migrate in a solution under the influence of an electric current.	Electrophoreses
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D017207	Rats, Sprague-Dawley	A strain of albino rat used widely for experimental purposes because of its calmness and ease of handling. It was developed by the Sprague-Dawley Animal Company.	Holtzman Rat,Rats, Holtzman,Sprague-Dawley Rat,Rats, Sprague Dawley,Holtzman Rats,Rat, Holtzman,Rat, Sprague-Dawley,Sprague Dawley Rat,Sprague Dawley Rats,Sprague-Dawley Rats
D051336	Mitochondrial Membranes	The two lipoprotein layers in the MITOCHONDRION. The outer membrane encloses the entire mitochondrion and contains channels with TRANSPORT PROTEINS to move molecules and ions in and out of the organelle. The inner membrane folds into cristae and contains many ENZYMES important to cell METABOLISM and energy production (MITOCHONDRIAL ATP SYNTHASE).	Inner Mitochondrial Membrane,Mitochondrial Membrane, Inner,Mitochondrial Membrane, Outer,Outer Mitochondrial Membrane,Inner Mitochondrial Membranes,Membrane, Inner Mitochondrial,Membrane, Mitochondrial,Membrane, Outer Mitochondrial,Membranes, Inner Mitochondrial,Membranes, Mitochondrial,Membranes, Outer Mitochondrial,Mitochondrial Membrane,Mitochondrial Membranes, Inner,Mitochondrial Membranes, Outer,Outer Mitochondrial Membranes
D051379	Mice	The common name for the genus Mus.	Mice, House,Mus,Mus musculus,Mice, Laboratory,Mouse,Mouse, House,Mouse, Laboratory,Mouse, Swiss,Mus domesticus,Mus musculus domesticus,Swiss Mice,House Mice,House Mouse,Laboratory Mice,Laboratory Mouse,Mice, Swiss,Swiss Mouse,domesticus, Mus musculus
D051381	Rats	The common name for the genus Rattus.	Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus
D053078	Membrane Potential, Mitochondrial	The voltage difference, normally maintained at approximately -180mV, across the INNER MITOCHONDRIAL MEMBRANE, by a net movement of positive charge across the membrane. It is a major component of the PROTON MOTIVE FORCE in MITOCHONDRIA used to drive the synthesis of ATP.	Delta Psi M,DeltaPsi M,DeltapsiM,Mitochondrial Membrane Potential,Mitochondrial Transmembrane Potential,M, DeltaPsi,Membrane Potentials, Mitochondrial,Mitochondrial Membrane Potentials,Mitochondrial Transmembrane Potentials,Transmembrane Potential, Mitochondrial,Transmembrane Potentials, Mitochondrial