PMID- 23261238 OWN - NLM STAT- MEDLINE DCOM- 20130812 LR - 20151119 IS - 1618-0631 (Electronic) IS - 0344-0338 (Linking) VI - 209 IP - 2 DP - 2013 Feb 15 TI - Elevated expression of integrin alphav and beta5 subunit in laryngeal squamous-cell carcinoma associated with lymphatic metastasis and angiogenesis. PG - 105-9 LID - S0344-0338(12)00322-6 [pii] LID - 10.1016/j.prp.2012.11.001 [doi] AB - In the past several years, the alphav integrin subfamily has been repeatedly found to be involved in tumor progression and angiogenesis. The aim of this study was to investigate the expression of the integrin alphav subfamily in laryngeal squamous cell carcinoma (LSCC), and to correlate the expression rate with tumor biological behavior and angiogenesis of the LSCC. The integrin alphav subfamily, including alphav, beta1, beta3, beta5, beta6 and beta8 subunits, was immunohistochemically found to be expressed in 64 patients with LSCC, and we analyzed the relationship between the expression rate and the clinicopathological stage of this cancer. Immunohistochemical staining for CD105 was carried out in the same group of the patients. The intratumoral microvessel density (IMVD) of the LSCC was calculated by CD105 staining, and the correlation between the IMVD and alphav subfamily expression was discussed. The results showed that all members of the integrin alphav subfamily could be detected in the LSCC. The expression rate of integrin alphav and beta5 subunits in primary cancer was significantly higher than in normal tissue, and their expression rate in the group with lymphatic metastasis was significantly higher than in the group without metastasis. The IMVD of the group with positive expression of alphav and beta5 subunits was significantly higher than in the group with negative expression, but there were no significant effects on the beta1, beta3, beta6 and beta8 subunits in these biological processes. In conclusion, the expressions of integrin alphav and beta5 subunits were significantly associated with lymphatic metastasis and angiogenesis of the LSCC. Among the members of integrin alphav subfamily, integrin alphavbeta5 might play an important role in invasion and metastases of the LSCC, and it may become a valuable marker for the evolution of the LSCC. CI - Copyright (c) 2012 Elsevier GmbH. All rights reserved. FAU - Li, Feng AU - Li F AD - Department of Otolaryngology/Head and Neck Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin 150081, PR China. FAU - Liu, Ying AU - Liu Y FAU - Kan, Xuan AU - Kan X FAU - Li, Yong AU - Li Y FAU - Liu, Ming AU - Liu M FAU - Lu, Jian Guang AU - Lu JG LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20121220 PL - Germany TA - Pathol Res Pract JT - Pathology, research and practice JID - 7806109 RN - 0 (Biomarkers, Tumor) RN - 0 (Receptors, Vitronectin) RN - 0 (integrin alphaVbeta5) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Biomarkers, Tumor/analysis MH - Carcinoma, Squamous Cell/*metabolism/*pathology MH - Female MH - Humans MH - Immunohistochemistry MH - Laryngeal Neoplasms/*metabolism/*pathology MH - Lymphatic Metastasis/pathology MH - Male MH - Middle Aged MH - Neoplasm Grading MH - Neoplasm Staging MH - Neovascularization, Pathologic/metabolism/pathology MH - Receptors, Vitronectin/analysis/*biosynthesis EDAT- 2012/12/25 06:00 MHDA- 2013/08/13 06:00 CRDT- 2012/12/25 06:00 PHST- 2012/04/26 00:00 [received] PHST- 2012/10/17 00:00 [revised] PHST- 2012/11/05 00:00 [accepted] PHST- 2012/12/25 06:00 [entrez] PHST- 2012/12/25 06:00 [pubmed] PHST- 2013/08/13 06:00 [medline] AID - S0344-0338(12)00322-6 [pii] AID - 10.1016/j.prp.2012.11.001 [doi] PST - ppublish SO - Pathol Res Pract. 2013 Feb 15;209(2):105-9. doi: 10.1016/j.prp.2012.11.001. Epub 2012 Dec 20.