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RESEARCH PRODUCT
Mitochondrial and chromosomal DNA alterations in human chromophobe renal cell carcinomas
Gyula KovacsW. ThoenesStephan StörkelAngela Kovacssubject
Pathologymedicine.medical_specialtyMitochondrial DNAChromophobe Renal Cell CarcinomaChromophobe cellBiologyurologic and male genital diseasesDNA MitochondrialChromosomesPathology and Forensic MedicineLoss of heterozygosityRenal cell carcinomamedicineHumansRenal oncocytomaCarcinoma Renal CellChromosome AberrationsKidneyStaining and LabelingPapillary renal cell carcinomasDNA Neoplasmmedicine.diseaseKidney NeoplasmsBlotting Southernmedicine.anatomical_structurePolymorphism Restriction Fragment Lengthdescription
Renal cell tumours are characterized by the loss of chromosome 3p and trisomy of 5q segments (common, non-papillary renal cell carcinoma), or by trisomy of chromosomes 7 and 17 and loss of the Y chromosome (papillary renal cell carcinoma), or by random karyotype changes and mitochondrial DNA alterations (renal oncocytoma). We have studied by means of RFLP analysis the genomic and mitochondrial DNA in 11 chromophobe renal cell carcinomas, which have a unique morphology among kidney cancers. We found a loss of the constitutional heterozygosity at chromosomal regions 3p, 5q, 17p, and 17q, a combination of allelic losses that has not been found in other types of renal cell tumours. Three of the tumours showed a gross alteration in the restriction pattern of the mitochondrial DNA. A combined morphological and genetic analysis suggests that chromophobe renal cell carcinoma is a distinct entity.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1992-07-01 | The Journal of Pathology |