Article
Mitotic checkpoint inactivation fosters transformation in cells lacking the breast cancer susceptibility gene, Brca2.
Molecular cell - 1 Jul 1999
Lee H, Trainer A H, Friedman L S, Thistlethwaite F C, Evans M J, Ponder B A, Venkitaraman A R
Abstract excerpt
The murine Brca2 gene encodes a nuclear protein implicated in DNA repair. Brca2 behaves as a tumor suppressor, but paradoxically, its truncation causes proliferative arrest and spontaneous chromosomal damage. Here, we report that inactivation of cell cycle checkpoints responsive to mitotic spindle disruption, by mutant forms of p53 or Bub1, relieves growth arrest and initiates neoplastic transformation in primary...
Topics
- Animals
- BRCA2 Protein
- Breast Neoplasms
- Cell Transformation, Neoplastic
- Cells, Cultured
- Chromosome Aberrations
- DNA Damage
- Genes, Neoplasm
- Genes, Tumor Suppressor
- Humans
- Interphase
