PMID- 8287230 OWN - NLM STAT- MEDLINE DCOM- 19940224 LR - 20211203 IS - 1052-9551 (Print) IS - 1052-9551 (Linking) VI - 2 IP - 3 DP - 1993 Sep TI - Sporadic amplification of the MYC gene in human osteosarcomas. PG - 163-7 AB - The MYC proto-oncogene has been shown to be overexpressed in several types of sarcomas, including some osteosarcomas. In most cases, the overexpression is due to gene amplification. The total number of osteosarcoma patients studied, however, remains too small to derive any conclusions regarding the true prevalence and the possible clinical significance of MYC gene amplification. To address the issue more thoroughly, we studied 27 specimens from 25 patients with high-grade osteosarcoma (16 primary, 11 metastatic; 11 adult, 14 pediatric) for MYC gene alterations by Southern blot analysis. Two of 27 specimens (7%) showed MYC gene amplification: a primary fibrohistiocytic osteosarcoma of the femur in a 37-year-old man showed threefold amplification, and a primary Paget's osteosarcoma of the tibia in a 60-year-old man showed fourfold amplification. None of the specimens tested showed MYC gene rearrangement (zero of 27) or activating point mutations at the PvuII site in MYC exon-1 (zero of 26). Hence, the MYC gene is amplified in a subset of osteosarcomas. The possible clinical or biological significance of MYC gene amplification in osteosarcoma may warrant further investigation. FAU - Ladanyi, M AU - Ladanyi M AD - Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York 10021. FAU - Park, C K AU - Park CK FAU - Lewis, R AU - Lewis R FAU - Jhanwar, S C AU - Jhanwar SC FAU - Healey, J H AU - Healey JH FAU - Huvos, A G AU - Huvos AG LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Diagn Mol Pathol JT - Diagnostic molecular pathology : the American journal of surgical pathology, part B JID - 9204924 SB - IM GS - MYC MH - Adult MH - Blotting, Southern MH - Bone Neoplasms/diagnosis/*genetics MH - Child MH - Female MH - *Gene Amplification MH - *Genes, myc MH - Humans MH - Male MH - Middle Aged MH - Osteosarcoma/diagnosis/*genetics MH - Proto-Oncogene Mas EDAT- 1993/09/01 00:00 MHDA- 1993/09/01 00:01 CRDT- 1993/09/01 00:00 PHST- 1993/09/01 00:00 [pubmed] PHST- 1993/09/01 00:01 [medline] PHST- 1993/09/01 00:00 [entrez] PST - ppublish SO - Diagn Mol Pathol. 1993 Sep;2(3):163-7.