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Mitochondrial oxidative phosphorylation and energetic status are reflected by morphology of mitochondrial network in INS-1E and HEP-G2 cells viewed by 4Pi microscopy

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985823%3A_____%2F08%3A00314590" target="_blank" >RIV/67985823:_____/08:00314590 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Mitochondrial oxidative phosphorylation and energetic status are reflected by morphology of mitochondrial network in INS-1E and HEP-G2 cells viewed by 4Pi microscopy

  • Original language description

    Using 4Pi microscopy, 3D morphology changes of mitochondrial reticulum network responding to decreased oxidative phosphorylation have been observed in INS-1E and HEP-G2 cells at an unprecedented 100 nm level of detail. In INS-1E cells a single interconnected mitochondrion with a nearly constant 262+26 nm tubule diameter was found. With rotenone inhibiting respiration to 10%, disintegration into several reticula and numerous 300 nm spheres or short tubules was observed. De-energization by uncoupling additionally led to formation of rings and bulky cisternae of 1.4+0.4 ?m diameter. Rotenone and uncoupler acted synergically in INS-1E cells and increased fusion (ongoing with fission) forming bowl-like shapes. In HEP-G2 cells fission partially ceased with FCCP plus rotenone. Thus we have revealed previously undescribed details for shapes upon mitochondrial disintegration and clearly demonstrate that high resolution 3D microscopy is required for visualization of mitochondrial network

  • Czech name

    Oxidativní fosforylace a energetický status jsou reflektovány morfologií mitochondriální sítě u INS-1E a HEP-G2 buněk zobrazených 4Pi mikroskopií

  • Czech description

    S využitím 4Pi mikroskopie jsme sledovali 3D morfologii mitochondriální sítě a její změny v závislosti na stupni oxidativní fosforylace u INS-1E a HEP-G2 buněk v bezprecedentní detailní úrovni 100 nm. Jediná mitochondrie, retikulární síť byla nalezena uINS-1E buněk s průměrem tubulů 262+26 nm. Rotenon inhibující respiraci na zbylých 10% dezintegroval tuto síť na několik částí a početné kuličky a krátké segmenty. Odpřažení vedlo navíc k tvorbě prstenců. Rotenon při odpřažení ještě zvýšil fúzování objektů do tvorby miskovitých útvarů. Odhalili jsme tak dříve nepopsané tvary mitochondriální sítě a zjistli, že 3D mikroskopie s vysokým rozlišením je nutné pro její studium

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    EA - Morphology and cytology

  • OECD FORD branch

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2008

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Biochimica Et Biophysica Acta-Bioenergetics

  • ISSN

    0005-2728

  • e-ISSN

  • Volume of the periodical

    1777

  • Issue of the periodical within the volume

    7-8

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    13

  • Pages from-to

  • UT code for WoS article

    257696400039

  • EID of the result in the Scopus database