Clinicopathologic significance of chromosomal DNA sequence copy number aberrations in patients with colorectal carcinoma
Liu, X-Ping.; Kawauchi, S.; Oga, A.; Sasaki, K.
Zhonghua Zhong Liu Za Zhi 29(5): 355-359
2007
ISSN/ISBN: 0253-3766 PMID: 17892131 Document Number: 613816
Objective To analyze the correlation of DNA sequence copy number aberrations (DSCNAs)with clinicopathologic parameters in patients with colorectal cancer(CRC). Methods Comparative genomic hybridization(CGH) method was used in analysis of 73 cases with CRC. Statistical analysis was performed using Stat View statistical software package(5. 0). Results Loss of 8p12-pter and gain of 8q23qter were linked to nodal metastasis, while loss of 18q12-qter and gain of 8q23-qter were associated with distant organ metastasis at diagnosis and ( or) recurrence after surgery. Moreover, losses of 8p12-pter and 18q12-qter and gain of 8q23-qter were associated significantly with unfavorable prognosis. Multivariate analysis revealed that loss of 18q12-qter was an independent prognostic marker. Conclusion Our findings indicate that genetic aberrations detected by CGH may predict outcome in patients with CRC, and may provide useful information for clinical treatment.