title: Centrosome amplification, chromosomal instability and cancer: mechanistic, clinical and therapeutic issues.
abstract: Centrosomes, the main microtubule-organizing centers in most animal cells, are of crucial importance for the assembly of a bipolar mitotic spindle and subsequent faithful segregation of chromosomes into two daughter cells. Centrosome abnormalities can be found in virtually all cancer types and have been linked to chromosomal instability (CIN) and tumorigenesis. Although our knowledge on centrosome structure, replication, and amplification has greatly increased within recent years, still only very little is known on nature, causes, and consequences of centrosome aberrations in primary tumor tissues. In this review, we summarize our current insights into the mechanistic link between centrosome aberrations, aneuploidy, CIN and tumorigenesis. Mechanisms of induction and cellular consequences of aneuploidy, tetraploidization and CIN, as well as origin and effects of supernumerary centrosomes will be discussed. In addition, animal models for both CIN and centrosome amplification will be outlined. Finally, we describe approaches to exploit centrosome amplification, aneuploidy and CIN for novel and specific anticancer treatment strategies based on the modulation of chromosome missegregation rates.
authors.affiliation: Clinical Cooperation Unit Molecular Hematology/Oncology, German Cancer Research Center (DKFZ) and Department of Internal Medicine V, University of Heidelberg, Im Neuenheimer Feld 280, 69120, Heidelberg, Germany.
authors.forename: Marco Raffaele
authors.initials: MR
authors.lastname: Cosenza
authors.affiliation: Clinical Cooperation Unit Molecular Hematology/Oncology, German Cancer Research Center (DKFZ) and Department of Internal Medicine V, University of Heidelberg, Im Neuenheimer Feld 280, 69120, Heidelberg, Germany. a.kraemer@dkfz-heidelberg.de.
authors.forename: Alwin
authors.initials: A
authors.lastname: Krämer
mesh_terms: D000818:Animals; D018385:Centrosome / Q000378:metabolism*; D043171:Chromosomal Instability; D020090:Chromosome Segregation; D002877:Chromosomes, Human / Q000235:genetics / Q000378:metabolism; D006801:Humans; D009369:Neoplasms / Q000235:genetics / Q000378:metabolism / Q000473:pathology / Q000628:therapy
keywords: Aneuploidy; Centrosome; Chromosomal instability