title: Abnormal expression of the MOS proto-oncogene in human thyroid medullary carcinoma.
abstract: We have been studying the expression of a range of proto-oncogenes in human thyroid tumour tissue by using Northern blot analysis. We have demonstrated the expression of a MOS mRNA of 1 kb in all thyroid samples. Furthermore, in a medullary carcinoma sample we also observed additional mRNA species of 1.7 and 2.2 kb. Southern blot analysis of DNA prepared from the same tumour sample did not reveal a rearrangement of the gene. These findings are the first report of MOS expression in any human tissue, and indicate that MOS oncogene activation might be important in the development of some thyroid tumours.
authors.affiliation: Department of Biological and Medical Research, King Faisal Specialist Hospital, Riyadh, Saudi Arabia.
authors.forename: M H
authors.initials: MH
authors.lastname: Parkar
authors.forename: J M
authors.initials: JM
authors.lastname: Seid
authors.forename: B M
authors.initials: BM
authors.lastname: Stringer
authors.forename: S
authors.initials: S
authors.lastname: Ingemansson
authors.forename: N
authors.initials: N
authors.lastname: Woodhouse
authors.forename: M H
authors.initials: MH
authors.lastname: Goyns
mesh_terms: D015152:Blotting, Northern; D015139:Blotting, Southern; D002277:Carcinoma / Q000235:genetics*; D006801:Humans; D017232:Oncogene Proteins v-mos; D000090063:Proto-Oncogene Mas; D011519:Proto-Oncogenes; D012333:RNA, Messenger / Q000032:analysis; D012191:Retroviridae Proteins / Q000235:genetics*; D013964:Thyroid Neoplasms / Q000235:genetics*
chemical_list: C000715470:MAS1 protein, human; D017232:Oncogene Proteins v-mos; D000090063:Proto-Oncogene Mas; D012333:RNA, Messenger; D012191:Retroviridae Proteins