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Related Experiment Videos

Amorphous no longer: the centrosome comes into focus.

W Zimmerman1, C A Sparks, S J Doxsey

  • 1Program in Molecular Medicine 373 Plantation Street University of Massachusetts Medical Center Worcester MA 01605 USA.

Current Opinion in Cell Biology
|February 27, 1999
PubMed
Summary

Recent studies reveal the molecular mechanisms of microtubule nucleation at the centrosome. This research clarifies centrosome function, protein assembly, and its role in cell division and cancer.

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Construction of centrosomes and spindle poles by molecular motor-driven assembly of protein particles.

Traffic (Copenhagen, Denmark)·2001

Area of Science:

  • Cell Biology
  • Molecular Biology
  • Genetics

Background:

  • Centrosomes are crucial microtubule-organizing centers.
  • Their function in cell division and organization is increasingly recognized.
  • Centrosomes are implicated in the development of tumors.

Purpose of the Study:

  • To provide new insights into the molecular basis of centrosome-mediated microtubule nucleation.
  • To define molecules and mechanisms involved in centrosome function.
  • To highlight the organized nature of centrosomes and their role in tumorigenesis.

Main Methods:

  • Genetic studies
  • Biochemical studies
  • Characterization of centrosome function

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Main Results:

  • New insights into molecular basis of microtubule nucleation.
  • Identification of molecules and mechanisms for microtubule severing and stabilization.
  • Understanding of protein assembly, duplication, and separation regulation at centrosomes.

Conclusions:

  • Centrosomes are highly organized organelles.
  • Centrosome function is critical for cell division and organization.
  • Dysregulation of centrosomes is linked to tumorigenesis.