PMID- 19086654 OWN - NLM STAT- MEDLINE DCOM- 20110616 LR - 20081217 IS - 2096-7993 (Print) IS - 2096-7993 (Linking) VI - 22 IP - 17 DP - 2008 Sep TI - [Expression of angiopoietin-1,2 and its relationship with angiogenesis in laryngeal squamous cell carcinoma]. PG - 772-6 AB - OBJECTIVE: To investigate the expression of Angiopoietin-1,2 in laryngeal squamous cell carcinoma (LSCC) and the relationship between Angiopoietin-1,2 expression and clinicopathologic parameters and microvessel density (MVD) marked by CD105, and also evaluate the significance of co-expression of Ang-2 and vascular endothelial cell growth factor (VEGF) in tumor angiogenesis. METHOD: The expression of Ang-1,2 and VEGF in samples of tumor, para cancer and normal mucosa were detected by immunohistochemical method. RESULT: The expression of Angiopoietin-1,2 were identified in LSCC, para cancer tissue and normal mucosa. The VEGF expression was only existed in LSCC. The expression of Ang-1,2 were significantly higher in LSCC than in para cancer tissue (P < 0.05) and normal mucosa (P < 0.01). In the clinicopathologic parameters, only the expression of Ang-2 was closely correlated with clinical stages and MVD (all P < 0.05). There was no significant correlation between the expression of Ang-1,2 and tumor differentiation degree (all P > 0.05). When the expression of Ang-2 and VEGF were both positive, the mean value of MVD was higher than others (P < 0.05). CONCLUSION: These results suggest that overexpression of Ang-1,2 may play a very important role in the development of LSCC and are closely correlated with angiogenesis. Ang-2 promote angiogenesis when interacting with VEGF. FAU - Xu, Guang AU - Xu G AD - Department of Otolaryngology, First Hospital of Zhengzhou University, Zhengzhou 450052, China. FAU - Lou, Weihua AU - Lou W FAU - Sun, Zhanwei AU - Sun Z FAU - Zhang, Peng AU - Zhang P LA - chi PT - English Abstract PT - Journal Article PL - China TA - Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi JT - Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology, head, and neck surgery JID - 101303164 RN - 0 (Angiopoietin-1) RN - 0 (Angiopoietin-2) RN - 0 (VEGFA protein, human) RN - 0 (Vascular Endothelial Growth Factor A) SB - IM MH - Aged MH - Angiopoietin-1/*metabolism MH - Angiopoietin-2/*metabolism MH - Carcinoma, Squamous Cell/*blood supply/metabolism/pathology MH - Female MH - Humans MH - Laryngeal Neoplasms/*blood supply/metabolism/pathology MH - Male MH - Microcirculation MH - Middle Aged MH - Neovascularization, Pathologic MH - Vascular Endothelial Growth Factor A/metabolism EDAT- 2008/12/18 09:00 MHDA- 2011/06/17 06:00 CRDT- 2008/12/18 09:00 PHST- 2008/12/18 09:00 [entrez] PHST- 2008/12/18 09:00 [pubmed] PHST- 2011/06/17 06:00 [medline] PST - ppublish SO - Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2008 Sep;22(17):772-6.