title: Loss of heterozygosity on chromosome 16p and 18q in anaplastic thyroid carcinoma.
abstract: The aim of this study was to clarify the genetic alterations in anaplastic transformation of the thyroid cancer. A total of 17 thyroid cancers including 7 anaplastic and 10 papillary cancers were analyzed for loss of heterozygosity (LOH) on chromosome 16p and 18q. All the samples from anaplastic cancer showed LOH at one or more loci out of ten markers on 16p, and only two showed one LOH at two loci out of five markers on 18q. No LOH was found on either 16p or 18q in papillary cancers. D16S423, D16S418 and D16s406 on 16p13.3 were the most frequently deleted loci in anaplastic cancers, and the region around these may harbor the putative tumor suppressor gene related to anaplastic transformation of thyroid cancer.
authors.affiliation: Department of Surgery and Clinical Oncology, Osaka University Graduate School of Medicine, Japan.
authors.forename: Masao
authors.initials: M
authors.lastname: Kadota
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Tamaki
authors.forename: Mitsugu
authors.initials: M
authors.lastname: Sekimoto
authors.forename: Yoshiyuki
authors.initials: Y
authors.lastname: Fujiwara
authors.forename: Noriko
authors.initials: N
authors.lastname: Aritake
authors.forename: Seiichi
authors.initials: S
authors.lastname: Hasegawa
authors.forename: Tetsuro
authors.initials: T
authors.lastname: Kobayashi
authors.forename: Takayuki
authors.initials: T
authors.lastname: Ikeda
authors.forename: Akira
authors.initials: A
authors.lastname: Horii
authors.forename: Morito
authors.initials: M
authors.lastname: Monden
mesh_terms: D002277:Carcinoma / Q000235:genetics* / Q000473:pathology; D002291:Carcinoma, Papillary / Q000235:genetics* / Q000473:pathology; D002874:Chromosome Mapping; D002885:Chromosomes, Human, Pair 16 / Q000235:genetics*; D002887:Chromosomes, Human, Pair 18 / Q000235:genetics*; D017931:DNA Primers / Q000737:chemistry; D004273:DNA, Neoplasm / Q000032:analysis; D017353:Gene Deletion; D006801:Humans; D019656:Loss of Heterozygosity; D018895:Microsatellite Repeats; D016133:Polymerase Chain Reaction; D013964:Thyroid Neoplasms / Q000235:genetics* / Q000473:pathology
chemical_list: D017931:DNA Primers; D004273:DNA, Neoplasm