PT - JOURNAL ARTICLE AU - RYUTARO UCHI AU - RINA JIROMARU AU - RYUJI YASUMATSU AU - HIDETAKA YAMAMOTO AU - TAKAHIRO HONGO AU - TOMOMI MANAKO AU - KUNIAKI SATO AU - KAZUKI HASHIMOTO AU - TAKAHIRO WAKASAKI AU - MIOKO MATSUO AU - TAKASHI NAKAGAWA TI - Genomic Sequencing of Cancer-related Genes in Sinonasal Squamous Cell Carcinoma and Coexisting Inverted Papilloma AID - 10.21873/anticanres.14752 DP - 2021 Jan 01 TA - Anticancer Research PG - 71--79 VI - 41 IP - 1 4099 - http://ar.iiarjournals.org/content/41/1/71.short 4100 - http://ar.iiarjournals.org/content/41/1/71.full SO - Anticancer Res2021 Jan 01; 41 AB - Background: The genetic basis of sinonasal inverted papilloma (SNIP)-derived squamous cell carcinoma (SCC) has not yet been well characterized. Aim: To characterize the genetic abnormalities of SNIP and SNIP-derived SCC and to uncover their differences. Materials and Methods: Mutations of 409 genes were analyzed using amplicon targeted sequencing in a total of six papilloma/carcinoma samples from four patients with SNIP-derived SCC. Results: The genes that were mutated in multiple cases were epidermal growth factor receptor (EGFR) (3/6), cyclin-dependent kinase inhibitor 2A (CDKN2A) (3/6), lysine methyltransferase 2D (KMT2D) (3/6), tumor protein p53 (TP53) (3/6), neurofibromin 1 (NF1) (3/6), phosphodiesterase 4D interacting protein (PDE4DIP) (3/6), cytochrome P450 family 2 subfamily D member 6 (CYP2D6) (2/6), fms-related receptor tyrosine kinase 4 (FLT4) (2/6) and myosin heavy chain 9 (MYH9) (2/6). Of the two cases analyzed in the papilloma–oncology carcinoma pair, one did not have any common mutations; the other showed a staged functional deletion of TP53 during the process of malignant transformation from SNIP to SCC. Conclusion: CDKN2A, KMT2D, NF1, PDE4DIP, CYP2D6, FLT4, and MYH9 were identified as candidate novel SNIP-derived SCC-related genes.