PMID- 33840689 OWN - NLM STAT- MEDLINE DCOM- 20211220 LR - 20211220 IS - 1880-313X (Electronic) IS - 0388-6107 (Linking) VI - 42 IP - 2 DP - 2021 TI - Genomic profiling of multiple tissues in two patients with multiple endocrine neoplasia type 1. PG - 89-94 LID - 10.2220/biomedres.42.89 [doi] AB - Multiple endocrine neoplasia type 1 (MEN1) is an autosomal dominant tumor syndrome. This hereditary cancer is caused by germline variants in MEN1. Two patients with MEN1 were identified via whole exome sequencing and gene expression profile analysis, conducted for 5,063 patients with various types of cancers. We obtained multiple tumors from each patient; tumors derived from these two MEN1 patients had a loss of the normal MEN1 allele and frequently chromosomal copy number changes. Thus, we investigated whether structural variants were present in the MEN1 patient genomes. Whole-genome sequencing revealed no catastrophic rearrangements, and the tumor samples had very low somatic variants. The two patients had germline variants in MEN1 and some chromosomal copy number changes including on chromosome 11. The only pathogenic variant detected was the MEN1 germline variant, and chromosomal rearrangements led to tumorigenesis in somatic cells. Furthermore, the MEN1 tumor samples displayed a specific signature characterized by T:A>C:G transition. Studies of multiple tumors obtained from single patients are rare in hereditary cancer syndromes, and our results provide insights that the second hit of the tumor suppressor gene MEN1 may be caused by a gross genome rearrangement, not a small insertion and deletion, nor a change in epigenetic regulation. FAU - Naruoka, Akane AU - Naruoka A AD - Drug Discovery and Development Division, Shizuoka Cancer Center Research Institute. FAU - Ohnami, Sumiko AU - Ohnami S AD - Cancer Diagnostics Research Division, Shizuoka Cancer Center Research Institute. FAU - Nagashima, Takeshi AU - Nagashima T AD - Cancer Diagnostics Research Division, Shizuoka Cancer Center Research Institute. AD - SRL Inc. FAU - Serizawa, Masakuni AU - Serizawa M AD - Drug Discovery and Development Division, Shizuoka Cancer Center Research Institute. FAU - Hatakeyama, Keiichi AU - Hatakeyama K AD - Medical Genetics Division, Shizuoka Cancer Center Research Institute. FAU - Ohshima, Keiichi AU - Ohshima K AD - Medical Genetics Division, Shizuoka Cancer Center Research Institute. FAU - Ohnami, Shumpei AU - Ohnami S AD - Cancer Diagnostics Research Division, Shizuoka Cancer Center Research Institute. FAU - Urakami, Kenichi AU - Urakami K AD - Cancer Diagnostics Research Division, Shizuoka Cancer Center Research Institute. FAU - Horiuchi, Yasue AU - Horiuchi Y AD - Division of Genetic Counseling, Shizuoka Cancer Center Hospital. FAU - Kiyozumi, Yoshimi AU - Kiyozumi Y AD - Division of Genetic Counseling, Shizuoka Cancer Center Hospital. FAU - Matsubayashi, Hiroyuki AU - Matsubayashi H AD - Division of Genetic Counseling, Shizuoka Cancer Center Hospital. FAU - Abe, Masato AU - Abe M AD - Division of Pathology, Shizuoka Cancer Center Hospital. FAU - Ohishi, Takuma AU - Ohishi T AD - Division of Pathology, Shizuoka Cancer Center Hospital. FAU - Kameya, Toru AU - Kameya T AD - Division of Pathology, Shizuoka Cancer Center Hospital. FAU - Sugino, Takashi AU - Sugino T AD - Division of Pathology, Shizuoka Cancer Center Hospital. FAU - Onitsuka, Tetsuro AU - Onitsuka T AD - Division of Head and Neck Surgery, Shizuoka Cancer Center Hospital. FAU - Isaka, Mitsuhiro AU - Isaka M AD - Division of Thoracic Surgery, Shizuoka Cancer Center Hospital. FAU - Ohde, Yasuhisa AU - Ohde Y AD - Division of Thoracic Surgery, Shizuoka Cancer Center Hospital. FAU - Sugiura, Teiichi AU - Sugiura T AD - Division of Hepato-Biliary-Pancreatic Surgery, Shizuoka Cancer Center Hospital. FAU - Ito, Takaaki AU - Ito T AD - Division of Hepato-Biliary-Pancreatic Surgery, Shizuoka Cancer Center Hospital. FAU - Uesaka, Katsuhiko AU - Uesaka K AD - Division of Hepato-Biliary-Pancreatic Surgery, Shizuoka Cancer Center Hospital. FAU - Akiyama, Yasuto AU - Akiyama Y AD - Immunotherapy Division, Shizuoka Cancer Center Research Institute. FAU - Kusuhara, Masatoshi AU - Kusuhara M AD - Shizuoka Cancer Center. FAU - Yamaguchi, Ken AU - Yamaguchi K AD - Shizuoka Cancer Center. LA - eng PT - Case Reports PT - Journal Article PL - Japan TA - Biomed Res JT - Biomedical research (Tokyo, Japan) JID - 8100317 RN - 0 (MEN1 protein, human) RN - 0 (Proto-Oncogene Proteins) SB - IM MH - Adult MH - Alleles MH - Chromosomes/*genetics MH - DNA Mutational Analysis MH - *Epigenesis, Genetic MH - Exons MH - Gastrinoma/genetics MH - *Gene Expression Profiling MH - *Gene Rearrangement MH - Genetic Variation MH - Genome, Human MH - *Genomics MH - Humans MH - Male MH - Middle Aged MH - Multiple Endocrine Neoplasia Type 1/*genetics MH - *Mutation MH - Neuroendocrine Tumors/*genetics MH - Proto-Oncogene Proteins/*genetics EDAT- 2021/04/13 06:00 MHDA- 2021/12/21 06:00 CRDT- 2021/04/12 06:08 PHST- 2021/04/12 06:08 [entrez] PHST- 2021/04/13 06:00 [pubmed] PHST- 2021/12/21 06:00 [medline] AID - 10.2220/biomedres.42.89 [doi] PST - ppublish SO - Biomed Res. 2021;42(2):89-94. doi: 10.2220/biomedres.42.89.