Mitotic redistribution of the mitochondrial network by Miro and Cenp-F

Gil Kanfer, Thibault Courthéoux, Martin Peterka, Sonja Meier, Martin Soste, Andre Melnik, Katarina Reis, Pontus Aspenström, Matthias Peter, Paola Picotti and Benoît Kornmann ()
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Gil Kanfer: Institute of Biochemistry, ETH Zürich
Thibault Courthéoux: Institute of Biochemistry, ETH Zürich
Martin Peterka: Institute of Biochemistry, ETH Zürich
Sonja Meier: Institute of Biochemistry, ETH Zürich
Martin Soste: Institute of Biochemistry, ETH Zürich
Andre Melnik: Institute of Biochemistry, ETH Zürich
Katarina Reis: Tumor and Cell Biology, Karolinska Institutet
Pontus Aspenström: Tumor and Cell Biology, Karolinska Institutet
Matthias Peter: Institute of Biochemistry, ETH Zürich
Paola Picotti: Institute of Biochemistry, ETH Zürich
Benoît Kornmann: Institute of Biochemistry, ETH Zürich

Nature Communications, 2015, vol. 6, issue 1, 1-9

Abstract: Abstract Although chromosome partitioning during mitosis is well studied, the molecular mechanisms that allow proper segregation of cytoplasmic organelles in human cells are poorly understood. Here we show that mitochondria interact with growing microtubule tips and are transported towards the daughter cell periphery at the end of mitosis. This phenomenon is promoted by the direct and cell cycle-dependent interaction of the mitochondrial protein Miro and the cytoskeletal-associated protein Cenp-F. Cenp-F is recruited to mitochondria by Miro at the time of cytokinesis and associates with microtubule growing tips. Cells devoid of Cenp-F or Miro show decreased spreading of the mitochondrial network as well as cytokinesis-specific defects in mitochondrial transport towards the cell periphery. Thus, Miro and Cenp-F promote anterograde mitochondrial movement and proper mitochondrial distribution in daughter cells.

Date: 2015
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DOI: 10.1038/ncomms9015

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