Počet záznamů: 1  

Mitochondrial Genome Acquisition Restores Respiratory Function and Tumorigenic Potential of Cancer Cells without Mitochondrial DNA

  1. 1.
    0440852 - BTÚ 2015 RIV US eng J - Článek v odborném periodiku
    Tan, A.S. - Dong, L.F. - Bezawork-Geleta, A. - Endaya, B. - Goodwin, J. - Bajziková, Martina - Kovářová, Jaromíra - Peterka, Martin - Yan, B. - Alizadeh Pesdar, E. - Sobol, Margaryta - Filimonenko, Anatolij - Stuart, S. - Vondrusová, Magdaléna - Klučková, Katarína - Sachaphibulkij, K. - Rohlena, Jakub - Hozák, Pavel - Truksa, Jaroslav - Eccles, D. - Haupt, D. - Griffiths, L.R. - Neužil, Jiří - Berridge, M.V.
    Mitochondrial Genome Acquisition Restores Respiratory Function and Tumorigenic Potential of Cancer Cells without Mitochondrial DNA.
    Cell Metabolism. Roč. 21, č. 1 (2015), s. 81-94. ISSN 1550-4131. E-ISSN 1932-7420
    Grant CEP: GA MŠMT(CZ) ED1.1.00/02.0109; GA ČR(CZ) GAP301/10/1937; GA ČR GA15-02203S; GA ČR GAP305/12/1708; GA ČR GAP301/12/1851
    Institucionální podpora: RVO:86652036 ; RVO:68378050
    Klíčová slova: ELECTRON-TRANSPORT CHAIN * MAMMALIAN MITOCHONDRIA * TUNNELING NANOTUBES
    Kód oboru RIV: EB - Genetika a molekulární biologie
    Impakt faktor: 17.303, rok: 2015

    We report that tumor cells without mitochondrial DNA (mtDNA) show delayed tumor growth, and that tumor formation is associated with acquisition of mtDNA from host cells. This leads to partial recovery of mitochondrial function in cells derived from primary tumors grown from cells without mtDNA and a shorter lag in tumor growth. Cell lines from circulating tumor cells showed further recovery of mitochondrial respiration and an intermediate lag to tumor growth, while cells from lung metastases exhibited full restoration of respiratory function and no lag in tumor growth. Stepwise assembly of mitochondrial respiratory (super)complexes was correlated with acquisition of respiratory function. Our findings indicate horizontal transfer of mtDNA from host cells in the tumor microenvironment to tumor cells with compromised respiratory function to re-establish respiration and tumor-initiating efficacy. These results suggest pathophysiological processes for overcoming mtDNA damage and support the notion of high plasticity of malignant cells.
    Trvalý link: http://hdl.handle.net/11104/0243952

     
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