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Aneuploidy: instigator and inhibitor of tumorigenesis Weaver BA; Cleveland DWCancer Res 2007[Nov]; 67 (21): 10103-5Aneuploidy, an aberrant chromosome number, has been recognized as a common characteristic of cancer cells for more than 100 years and has been suggested as a cause of tumorigenesis for nearly as long. However, this proposal had remained untested due to the difficulty of selectively generating aneuploidy without causing other damage. Using Cenp-E heterozygous animals, which develop whole chromosome aneuploidy in the absence of other defects, we have found that aneuploidy promotes tumorigenesis in some contexts and inhibits it in others. These findings confirm that aneuploidy can act oncogenically and reveal a previously unsuspected role for aneuploidy as a tumor suppressor.|*Aneuploidy[MESH]|Animals[MESH]|Calcium-Binding Proteins/physiology[MESH]|Cell Cycle Proteins/physiology[MESH]|Chromosomal Proteins, Non-Histone/analysis/genetics[MESH]|Chromosome Segregation[MESH]|DNA Damage[MESH]|Humans[MESH]|Mad2 Proteins[MESH]|Neoplasms/*genetics/*prevention & control[MESH]|Repressor Proteins/physiology[MESH] |
