Cep126 is required for pericentriolar satellite localisation to the centrosome and for primary cilium formation

Raffaella Bonavita, Dawid Walas, Anna K. Brown, Alberto Luini, David J. Stephens, Antonino Colanzi

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Background Information: The centrosome is the primary microtubule-organising centre of animal cells and it has crucial roles in several fundamental cellular functions, including cell division, cell polarity, and intracellular transport. The mechanisms responsible for this are not completely understood. Results: The poorly characterised protein CEP126 localises to the centrosome, pericentriolar satellites and the base of the primary cilium. Suppression of CEP126 expression results in dispersion of the pericentriolar satellites and disruption of the radial organisation of the microtubules, and induces disorganisation of the mitotic spindle. Moreover, CEP126 depletion or the transfection of a CEP126 truncation mutant in hTERT-RPE-1 and IMCD3 cells impairs the formation of the primary cilium. Conclusions: We propose that CEP126 is a regulator of microtubule organisation at the centrosome that acts through modulation of the transport of pericentriolar satellites, and consequently, of the organisation of cell structure.

Original languageEnglish
Pages (from-to)254-267
Number of pages14
JournalBiology of the cell / under the auspices of the European Cell Biology Organization
Volume106
Issue number8
DOIs
Publication statusPublished - 2014

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Centrosome
Cilia
Microtubules
Microtubule-Organizing Center
Cell Polarity
Spindle Apparatus
Cell Division
Transfection
Proteins

Keywords

  • Centrosome
  • Cep126
  • Microtubules Primary Cilium
  • Pericentriolar Satellites

ASJC Scopus subject areas

  • Cell Biology
  • Medicine(all)

Cite this

Cep126 is required for pericentriolar satellite localisation to the centrosome and for primary cilium formation. / Bonavita, Raffaella; Walas, Dawid; Brown, Anna K.; Luini, Alberto; Stephens, David J.; Colanzi, Antonino.

In: Biology of the cell / under the auspices of the European Cell Biology Organization, Vol. 106, No. 8, 2014, p. 254-267.

Research output: Contribution to journalArticle

Bonavita, Raffaella ; Walas, Dawid ; Brown, Anna K. ; Luini, Alberto ; Stephens, David J. ; Colanzi, Antonino. / Cep126 is required for pericentriolar satellite localisation to the centrosome and for primary cilium formation. In: Biology of the cell / under the auspices of the European Cell Biology Organization. 2014 ; Vol. 106, No. 8. pp. 254-267.
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AU - Luini, Alberto

AU - Stephens, David J.

AU - Colanzi, Antonino

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AB - Background Information: The centrosome is the primary microtubule-organising centre of animal cells and it has crucial roles in several fundamental cellular functions, including cell division, cell polarity, and intracellular transport. The mechanisms responsible for this are not completely understood. Results: The poorly characterised protein CEP126 localises to the centrosome, pericentriolar satellites and the base of the primary cilium. Suppression of CEP126 expression results in dispersion of the pericentriolar satellites and disruption of the radial organisation of the microtubules, and induces disorganisation of the mitotic spindle. Moreover, CEP126 depletion or the transfection of a CEP126 truncation mutant in hTERT-RPE-1 and IMCD3 cells impairs the formation of the primary cilium. Conclusions: We propose that CEP126 is a regulator of microtubule organisation at the centrosome that acts through modulation of the transport of pericentriolar satellites, and consequently, of the organisation of cell structure.

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