PMID- 22715132 OWN - NLM STAT- MEDLINE DCOM- 20131108 LR - 20130522 IS - 1097-0339 (Electronic) IS - 1097-0339 (Linking) VI - 41 IP - 6 DP - 2013 Jun TI - Detection of C-MYC oncogene translocation and copy number change in the normal-dysplasia-carcinoma sequence of the larynx by fluorescence in situ hybridization. PG - 515-9 LID - 10.1002/dc.22879 [doi] AB - The aim of this study was to determine the translocation and copy number change of the C-MYC gene in patients with laryngeal dysplasia and laryngeal squamous cell carcinoma (LSCC), and to evaluate the prevalence of such expression in relation to the normal-dysplasia-carcinoma sequence. Fluorescent in situ hybridization (FISH) was applied on formalin-fixed paraffin-embedded blocks of 93 laryngeal lesion specimens (14 normal epithelium, 15 mild dysplasia, 18 moderate dysplasia, 16 severe dysplasia, 9 carcinoma in situ, and 21 invasive carcinoma). C-MYC translocation was not observed in all laryngeal tissue. The high frequency for C-MYC copy-number increased (100%) in invasive carcinoma: 57.14% amplifications and 42.86% gains, and the positive rate of C-MYC amplification and copy-number change increased with the increasing severity of laryngeal lesions (P < 0.0001). The results suggest that C-MYC may be activated by gain/amplification in LSCC and precancerous lesions. Thus, C-MYC may play an important role in promoting LSCC progression, and early FISH detection of C-MYC may be exploited to set a screening test for laryngeal dysplasia. CI - Copyright (c) 2012 Wiley Periodicals, Inc. FAU - Liu, Yu AU - Liu Y AD - Department of Pathology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China. FAU - Gong, Li-Ping AU - Gong LP FAU - Dong, Xiao-Li AU - Dong XL FAU - Liu, Hong-Gang AU - Liu HG LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120620 PL - United States TA - Diagn Cytopathol JT - Diagnostic cytopathology JID - 8506895 SB - IM MH - Adult MH - Aged MH - Carcinoma, Squamous Cell/diagnosis/*genetics MH - Epithelium/pathology MH - Female MH - *Gene Dosage MH - *Genes, myc MH - Humans MH - In Situ Hybridization, Fluorescence MH - Laryngeal Neoplasms/diagnosis/*genetics MH - Male MH - Middle Aged MH - Precancerous Conditions/*genetics MH - *Translocation, Genetic EDAT- 2012/06/21 06:00 MHDA- 2013/11/10 06:00 CRDT- 2012/06/21 06:00 PHST- 2012/02/07 00:00 [received] PHST- 2012/04/24 00:00 [accepted] PHST- 2012/06/21 06:00 [entrez] PHST- 2012/06/21 06:00 [pubmed] PHST- 2013/11/10 06:00 [medline] AID - 10.1002/dc.22879 [doi] PST - ppublish SO - Diagn Cytopathol. 2013 Jun;41(6):515-9. doi: 10.1002/dc.22879. Epub 2012 Jun 20.