Depletion of ECRG2 disrupts the spindle assembly checkpoint
- Author:
- No author available
- Journal Title:
- CANCER RESEARCH AND CLINIC
- Issue:
- 8
- DOI:
- 10.3760/cma.j.issn.1006-9801.2008.08.004
- Key Word:
- 基因;ECRG2;有丝分裂纺锤体;染色体不稳定性;非整倍体;Gene,ECRG2;Mitotic spindle apparatus;Chmmosome instability;Aneuploidy
Abstract： Objective To investigate the role of ECRG2,a novel tumor suppressor gene,in spindle assembly checkpoint. Methods Using siRNA approach to deplete the expression of ECRG2, using immunofluorescence to test the distribution of ECRG2,using Western blotting to examine the expression cell cycle proteins.Results ECRG2 localized to centrosomes during interphase and kinetochores during mitosis.Further analysis revealed that ECRG2 participates in the spindle assembly checkpoint.Depletion of ECRG2 abolished the spindle assembly checkpoint.Conclusion Our results indicated that ECRG2 is important for ensuring spindle assembly checkpoint,accurate chromosome segregation,and its depletion may contribute to chmmosome instability and aneuploidy in human cancers.
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