PMID- 21547905 OWN - NLM STAT- MEDLINE DCOM- 20110824 LR - 20220317 IS - 1096-9896 (Electronic) IS - 0022-3417 (Linking) VI - 224 IP - 3 DP - 2011 Jul TI - Talin-1 overexpression defines high risk for aggressive oral squamous cell carcinoma and promotes cancer metastasis. PG - 367-76 LID - 10.1002/path.2867 [doi] AB - Oral squamous cell carcinoma (OSCC) is highly invasive and is associated with frequent tumour recurrences and lymph node metastases. Identification of genes involved in the aggressiveness of OSCC may provide new targets for clinical intervention. A genome-wide study based on the Sty1 250K SNP array indicated the involvement of the Talin-1 (TLN1) gene in the 9p13.3 amplicon, which was further validated by dual colour fluorescence in situ hybridization (FISH). Comparative analyses revealed that TLN1 was the most highly expressed integrin-cytoskeleton cross-linker that can trigger integrin activation. IHC analyses and mouse study also revealed an association between TLN1 overexpression and advanced OSCC with invasion to adjacent tissues. Survival analyses indicated a significant association between TLN1 genetic gain/overexpression and a reduced overall survival in patients. Functional knockdown by a dominant negative TLN1 fragment reduced cell growth and invasiveness in TLN1-overexpressing cells via inactivation of downstream oncogenic signalling. The present study suggests an important role for TLN1 in oral cancer development. TLN1 overexpression could serve as a diagnostic marker for aggressive phenotypes and a potential target for treating OSCC. CI - Copyright (c) 2011 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd. FAU - Lai, Ming-Tsung AU - Lai MT AD - Department of Pathology, Chung Shan Medical University Hospital, Taichung, Taiwan. FAU - Hua, Chun-Hung AU - Hua CH FAU - Tsai, Ming-Hsui AU - Tsai MH FAU - Wan, Lei AU - Wan L FAU - Lin, Ying-Ju AU - Lin YJ FAU - Chen, Chih-Mei AU - Chen CM FAU - Chiu, I-Wen AU - Chiu IW FAU - Chan, Carmen AU - Chan C FAU - Tsai, Fuu-Jen AU - Tsai FJ FAU - Jinn-Chyuan Sheu, Jim AU - Jinn-Chyuan Sheu J LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20110505 PL - England TA - J Pathol JT - The Journal of pathology JID - 0204634 RN - 0 (Biomarkers, Tumor) RN - 0 (Neoplasm Proteins) RN - 0 (TLN1 protein, human) RN - 0 (Talin) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Biomarkers, Tumor/*biosynthesis/genetics MH - Carcinoma, Squamous Cell/genetics/*metabolism/pathology/*secondary MH - Cell Division/physiology MH - Cell Transformation, Neoplastic/metabolism MH - Female MH - Gene Expression Regulation, Neoplastic MH - Gene Knockdown Techniques MH - Humans MH - Male MH - Middle Aged MH - Mouth Neoplasms/genetics/*metabolism/pathology MH - Neoplasm Invasiveness MH - Neoplasm Proteins/biosynthesis/genetics MH - Polymorphism, Single Nucleotide MH - Prognosis MH - Survival Analysis MH - Talin/*biosynthesis/genetics MH - Tumor Cells, Cultured EDAT- 2011/05/07 06:00 MHDA- 2011/08/25 06:00 CRDT- 2011/05/07 06:00 PHST- 2010/12/08 00:00 [received] PHST- 2011/01/19 00:00 [revised] PHST- 2011/01/30 00:00 [accepted] PHST- 2011/05/07 06:00 [entrez] PHST- 2011/05/07 06:00 [pubmed] PHST- 2011/08/25 06:00 [medline] AID - 10.1002/path.2867 [doi] PST - ppublish SO - J Pathol. 2011 Jul;224(3):367-76. doi: 10.1002/path.2867. Epub 2011 May 5.