PMID- 12815899 OWN - NLM STAT- MEDLINE DCOM- 20031128 LR - 20140625 VI - 17 IP - 3 DP - 2003 Mar TI - [The expression of extracellular matrix in squamous cell carcinoma of the larynx: an immunohistochemical study]. PG - 167-70 AB - OBJECTIVE: To investigate the expression and the protective significance of extracellular matrix (ECM) in laryngeal squamous cell carcinomas(LSCC). METHOD: The expression and distribution of three antigens, human type IV collagen(CT IV), laminin(LN) and fibronectin(FN) were immunohistochemically determined in 72 cases of LSCC by using the corresponding monoclonal antibodies. The correlation of the intact continuance of ECM around the tumor nest with the cell differentiation, invasion mode and the regional lymph node metastasis of laryngeal squamous cell carcinoma was evaluated. RESULT: In cases with poor histological differentiation, the defect of ECM was more severe than that in cases with high or middle histological differentiation(P < 0.01). Moreover, cases with diffuse invasion revealed lower ECM expression compared with cases with better tumor-host border (P < 0.01). There was a higher risk of regional lymph node metastasis among cases with poor ECM expression (P < 0.01). And there was a significant association between the defect of ECM and the lymph node metastasis(P < 0.01). CONCLUSION: These observations indicates that testing the distribution and the expression of ECM seems to be useful to evaluate the histological grading of malignancy and the invasion mode of laryngeal squamous cell carcinoma and to be helpful to prognosticate the frequency of regional lymph node metastasis. FAU - Cao, Zhiwei AU - Cao Z AD - Department of Otorhinolaryngology, First Clinical Hospital, China Medical University, Shenyang 110001. FAU - Li, Xiaotian AU - Li X FAU - Ren, Zhong AU - Ren Z LA - chi PT - English Abstract 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 (Collagen Type IV) RN - 0 (Extracellular Matrix Proteins) RN - 0 (Fibronectins) RN - 0 (Laminin) SB - IM MH - Adult MH - Aged MH - Carcinoma, Squamous Cell/*metabolism/pathology MH - Collagen Type IV/biosynthesis MH - Extracellular Matrix Proteins/*biosynthesis MH - Female MH - Fibronectins/biosynthesis MH - Glottis/metabolism/pathology MH - Humans MH - Immunohistochemistry MH - Laminin/biosynthesis MH - Laryngeal Neoplasms/*metabolism/pathology MH - Lymphatic Metastasis MH - Male MH - Middle Aged MH - Neoplasm Invasiveness EDAT- 2003/06/21 05:00 MHDA- 2003/12/03 05:00 CRDT- 2003/06/21 05:00 PHST- 2003/06/21 05:00 [pubmed] PHST- 2003/12/03 05:00 [medline] PHST- 2003/06/21 05:00 [entrez] PST - ppublish SO - Lin Chuang Er Bi Yan Hou Ke Za Zhi. 2003 Mar;17(3):167-70.