RT Journal Article SR Electronic T1 Genomic Sequencing of Cancer-related Genes in Sinonasal Squamous Cell Carcinoma and Coexisting Inverted Papilloma JF Anticancer Research JO Anticancer Res FD International Institute of Anticancer Research SP 71 OP 79 DO 10.21873/anticanres.14752 VO 41 IS 1 A1 RYUTARO UCHI A1 RINA JIROMARU A1 RYUJI YASUMATSU A1 HIDETAKA YAMAMOTO A1 TAKAHIRO HONGO A1 TOMOMI MANAKO A1 KUNIAKI SATO A1 KAZUKI HASHIMOTO A1 TAKAHIRO WAKASAKI A1 MIOKO MATSUO A1 TAKASHI NAKAGAWA YR 2021 UL http://ar.iiarjournals.org/content/41/1/71.abstract 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.