PMID- 16075977 OWN - NLM STAT- MEDLINE DCOM- 20060804 LR - 20181201 VI - 19 IP - 9 DP - 2005 May TI - [Expression and significance of PTEN and Survivin between the primary foci and the lymph node metastases foci of laryngeal squamous cell carcinoma]. PG - 412-4, 416 AB - OBJECTIVE: To investigate the molecular difference and significance between the primary foci and metastases foci of laryngeal squamous cell carcinoma (LSCC). METHOD: Tissues of 18 cases of positive lymph node metastases (N+) LSCC were detected by using SP method. The LSCC primary foci and metastases foci and negative metastases lymph nodes were included, 22 cases of vocal cord polyp (VCP) were regarded as control. expression of PTEN and Survivin were evaluated by SP immunohistochemistry. RESULT: Expression of neither PTEN nor Survivin were positive in negative nodes. The positive rates of PTEN in LSCC, N+, VCP were 94.4% (17/18), 94.4% (17/18) and 95.5% (21/22) respectively, there were no significant difference among them (P>0.05). But the expression degree were more powerful in N+ than in the LSCC (P<0.05). There was no expression of Survivin in VCP. The positive rates of Survivin in LSCC and N+ were 55.5% (10/18), 50.0% (9/18), the difference were significant (P<0.01); but between LSCC and N+, neither the positive rate nor the expression degree had significant difference (P>0.05). CONCLUSIONS: There were differences between the LSCC primary foci and the lymph node metastases foci in molecular level probably. FAU - He, Long AU - He L AD - Department of Otorhinolaryngology, the First Affiliated Hospital of Jinan University, Guangzhou, 510630, China. helong@126.com FAU - Wang, Jiqun AU - Wang J FAU - Shan, Yanchun AU - Shan Y LA - chi PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Lin Chuang Er Bi Yan Hou Ke Za Zhi JT - Lin chuang er bi yan hou ke za zhi = Journal of clinical otorhinolaryngology JID - 9426080 RN - 0 (BIRC5 protein, human) RN - 0 (Inhibitor of Apoptosis Proteins) RN - 0 (Microtubule-Associated Proteins) RN - 0 (Neoplasm Proteins) RN - 0 (Survivin) RN - EC 3.1.3.67 (PTEN Phosphohydrolase) RN - EC 3.1.3.67 (PTEN protein, human) SB - IM MH - Adult MH - Aged MH - Carcinoma, Squamous Cell/*metabolism/secondary MH - Female MH - Humans MH - Inhibitor of Apoptosis Proteins MH - Laryngeal Neoplasms/*metabolism/pathology MH - Lymph Nodes/*pathology MH - Lymphatic Metastasis MH - Male MH - Microtubule-Associated Proteins/*biosynthesis MH - Middle Aged MH - Neck MH - Neoplasm Proteins/*biosynthesis MH - PTEN Phosphohydrolase/*biosynthesis MH - Survivin EDAT- 2005/08/04 09:00 MHDA- 2006/08/05 09:00 CRDT- 2005/08/04 09:00 PHST- 2005/08/04 09:00 [pubmed] PHST- 2006/08/05 09:00 [medline] PHST- 2005/08/04 09:00 [entrez] PST - ppublish SO - Lin Chuang Er Bi Yan Hou Ke Za Zhi. 2005 May;19(9):412-4, 416.