[Study on the correlation between the cyclin D1 and laryngeal squamous cell carcinoma].

OBJECTIVE

To study the correlation between the expression level of Cyclin D1 and the laryngeal squamous cell carcinoma (LSCC).

METHOD

35 LSCC cases testified pathologically were included in the study. The samples obtained from each tumor tissue and adjacent normal mucosa were detected to see the expression level of Cyclin D1 with the method of RT-PCR and light density half quantive analysis.

RESULT

The expression level of Cyclin D1 was significant higher in almost all turmor tissues than in the adjacent normal mucosae (P < 0.05). Overexpressed carcinomas were more frequently associated with lymph node metastases (P < 0.05). A significant association between the expression level of Cyclin D1 and TNM was found. The higher T stage, the higher the expression level of Cyclin D1 (P < 0.01). The expression level of low histological grade carcinomas was lower than that of the high histological grade carcinomas, but the difference had no statistical significance. No association between overexpression of Cyclin D1 and sex, age was found too.

CONCLUSION

The result indicates that the expression level of Cyclin D1 in LSCC may be a useful marker of prognostic significance and it provide a molecular biology basis for treating the LSCC patients.