Novel gene fusion of COX6C at 8q22–23 to HMGIC at 12q15 in a uterine leiomyoma
✍ Scribed by Keisuke Kurose; Nobuya Mine; Daisuke Doi; Yujiro Ota; Koichi Yoneyama; Hideki Konishi; Tsutomu Araki; Mitsuru Emi
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 90 KB
- Volume
- 27
- Category
- Article
- ISSN
- 1045-2257
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✦ Synopsis
Cytogenetic analyses have shown that aberrations involving 12q13-15 are frequent chromosomal changes in a variety of human benign mesenchymal tumors, e.g., pleomorphic adenomas of the parotid gland, pulmonary chondroid hamartomas, lipomas, and uterine leiomyomas. Recently, the high-mobility group protein gene HMGIC was identified as the target gene affected by the 12q13-15 aberrations. Using 3Ј rapid amplification of cDNA ends experiments, we isolated novel ectopic sequences fused to HMGIC in a uterine leiomyoma. Cloning of the fusion cDNA identified the human cytochrome c oxidase subunit VIc (COX6C) gene on 8q22-23 as the fusion partner of HMGIC. Nucleotide sequences of the fusion transcript revealed that the first 3 exons of the HMGIC gene, encoding the 3 DNA binding domains, was fused to the exon 2 of the COX6C gene. The identification of a gene rearrangement suggests a role for HMGIC in tumorigenesis of uterine leiomyoma and suggests a possible involvement of HMGIC in mesenchymal differentiation.
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