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Dermatofibrosarcoma protuberans with COL1A1 (exon 18) -PDGFB (exon 2) fusion transcript
1Department of Dermatology, Faculty of Medicine, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8655, Japan.
The British Journal of Dermatology
|June 6, 2003
Summary
This study identified a novel COL1A1 gene breakpoint in dermatofibrosarcoma protuberans (DFSP). The collagen type I alpha 1 (COL1A1) gene fused with the platelet-derived growth factor B-chain (PDGFB) gene at exon 18.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Dermatofibrosarcoma protuberans (DFSP) is a rare skin cancer.
- A known genetic alteration in DFSP involves the fusion of the collagen type I alpha 1 (COL1A1) gene with the platelet-derived growth factor B-chain (PDGFB) gene.
- Previous studies indicated various COL1A1 exons can fuse with PDGFB exon 2.
Observation:
- This research utilized tumor specimens from a DFSP patient.
- Reverse transcriptase-polymerase chain reaction (RT-PCR) and nucleotide sequence analysis were employed.
- DFSP tumor cells were cultured for experimental analysis.
Findings:
- The study successfully detected the COL1A1-PDGFB fusion transcript in the DFSP tumor specimen.
- Sequence analysis pinpointed a novel breakpoint within the COL1A1 gene.
- Specifically, exon 18 of COL1A1 was found to be fused with exon 2 of PDGFB.
Implications:
- Identifies a specific genetic marker for DFSP.
- Contributes to understanding the molecular pathogenesis of DFSP.
- May inform future diagnostic or therapeutic strategies targeting this specific gene fusion.