PMID- 15946559 OWN - NLM STAT- MEDLINE DCOM- 20060509 LR - 20211203 IS - 0253-3766 (Print) IS - 0253-3766 (Linking) VI - 27 IP - 3 DP - 2005 Mar TI - [Mutation of p53 and overexpression of STK15 in laryngeal squamous-cell carcinoma]. PG - 134-7 AB - OBJECTIVE: To explore the relationship between p53 gene mutations and STK15 abnormal expression in the development of human laryngeal squamous-cell carcinoma (LSCC). METHODS: LSCC tissues and matched normal tissues were taken during operation from 55 patients without previous chemotherapy or radiotherapy. Following polymerase chain reaction amplification direct sequencing single strand conformational polymorphism (PCR-SSCP) combined with silver staining were used to detect mutations of p53 gene in exons 7 and 8 (p53E7 and p53E8) using genomic DNA from 110 specimens including 55 LSCC tissues and 55 matched normal tissues. STK15 expression were evaluated by RT-PCR with beta-actin as internal control. RESULTS: The mutation rate of p53E7 was 30.9% (compared to normal tissues, chi(2) = 8.66, P < 0.01). There was no mutation in p53E8. In 38 of the 55 cases (69.1%), the STK15 mRNA expression level was higher than that of the paired normal tissue. The STK15 to beta-actin ratio of average density value was 1.22 +/- 0.49 in the cancer tissue, and 0.99 +/- 0.54 in the normal tissues (t = 4.539, P < 0.01). In 14 of the 17 cases (82.4%) with p53E7 mutations, the STK15 expression was higher than that of normal tissue. In the 38 cases with STK15 over-expression, p53E7 mutation was found in 14 cases (36.8%). The rate of concurrence of p53E gene mutations and STK15 over-expression (25.5%) was higher than that of only p53E gene mutations (chi(2) = 26.025, P < 0.01). CONCLUSION: There is significant association between p53 gene mutation and STK15 over-expression in laryngeal squamous-cell carcinoma. FAU - Zhao, Xu AU - Zhao X AD - Department of Medical Genetics, China Medical University, Shenyang 110001, China. FAU - Li, Fu-cai AU - Li FC FAU - Li, Ying-hui AU - Li YH FAU - Fu, Wei-neng AU - Fu WN FAU - Huang, Dai-fa AU - Huang DF FAU - Ye, Yan AU - Ye Y FAU - Xu, Zhen-ming AU - Xu ZM FAU - Sun, Kai-lai AU - Sun KL LA - chi PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Zhonghua Zhong Liu Za Zhi JT - Zhonghua zhong liu za zhi [Chinese journal of oncology] JID - 7910681 RN - 0 (Actins) RN - 0 (RNA, Messenger) RN - EC 2.7.11.1 (AURKA protein, human) RN - EC 2.7.11.1 (Aurora Kinase A) RN - EC 2.7.11.1 (Aurora Kinases) RN - EC 2.7.11.1 (Protein Serine-Threonine Kinases) SB - IM MH - Actins/metabolism MH - Aurora Kinase A MH - Aurora Kinases MH - Carcinoma, Squamous Cell/*genetics/metabolism MH - Exons MH - *Frameshift Mutation MH - Gene Expression Regulation, Neoplastic MH - Genes, p53/*genetics MH - Humans MH - Laryngeal Neoplasms/*genetics/metabolism MH - Mutation, Missense MH - Protein Serine-Threonine Kinases/*biosynthesis/genetics MH - RNA, Messenger/biosynthesis/genetics EDAT- 2005/06/11 09:00 MHDA- 2006/05/10 09:00 CRDT- 2005/06/11 09:00 PHST- 2005/06/11 09:00 [pubmed] PHST- 2006/05/10 09:00 [medline] PHST- 2005/06/11 09:00 [entrez] PST - ppublish SO - Zhonghua Zhong Liu Za Zhi. 2005 Mar;27(3):134-7.