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Translocation (4;14) and concomitant inv(14) in a basal cell carcinoma.
R S Kawasaki1, L F Caldeira, F S André
1Departamento de Biologia, Instituto de Biociências, Letras e Ciências Exatas de São José do Rio Preto, UNESP, Brazil.
Cancer Genetics and Cytogenetics
|October 15, 1991
Summary
Chromosome analysis revealed a specific genetic abnormality in basal cell carcinoma. This involved a rearranged chromosome 4, indicating a potential driver of cancer development.
Area of Science:
- Oncology
- Human Genetics
- Cytogenetics
Background:
- Basal cell carcinoma (BCC) is the most common human cancer.
- Understanding the genetic underpinnings of BCC is crucial for targeted therapies.
Observation:
- Chromosome analysis was conducted on short-term cultures derived from a BCC sample.
- Karyotype analysis aimed to identify chromosomal abnormalities associated with the tumor.
Findings:
- A pseudodiploid clone was identified, indicating an abnormal but balanced set of chromosomes.
- The clone exhibited a derivative chromosome 4, denoted as der(4), resulting from a translocation between chromosomes 4 and 14, specifically t(4;14)(p14;p11).
- Additionally, an inversion within the same chromosome 4, involving the breakpoints p14 and q25, was observed concurrently with the translocation.
Implications:
- The identified chromosomal rearrangement, der(4)t(4;14)(p14;p11) with inversion, may represent a significant event in the pathogenesis of this specific basal cell carcinoma.
- Further research into the role of these genetic alterations could elucidate novel therapeutic targets for BCC.