title: Comparison of DNA ploidy status and DNA ploidy-related parameters in malignant melanoma tissue microarrays and full sections.
abstract: A new high-throughput tissue-arraying technique, now frequently used in tumor pathology, requires standardization of methods of DNA analysis, previously applied in full histological sections. The main objectives of this study were to evaluate DNA ploidy status and DNA ploidy-related parameters using the CAS200 image analyzer in malignant melanoma tissue microarrays and to compare them with full histological sections. Comparison of DNA ploidy-related parameters, including percentage of diploid cells, percentage of aneuploid cells between 2c and 4c, percentage of tetraploid cells, percentage of aneuploid cells between 4c and 8c, percentage of octaploid cells, percentage of 16-ploid cells, and 5c exceeding rate, did not reveal any significant differences between malignant melanoma tissue microarrays and full sections. The DNA ploidy status according to Auer differed in 1 out of 59 cases investigated. Our study demonstrated that it is possible to evaluate DNA ploidy status and DNA ploidy-related parameters in tissue microarrays, which is of practical relevance to tumor pathology.
authors.affiliation: Department of Cytopathology, University of Göttingen, Göttingen, Germany.
authors.forename: Monika
authors.initials: M
authors.lastname: Korabiowska
authors.forename: Carlos
authors.initials: C
authors.lastname: Cordon-Cardo
authors.forename: Nadine
authors.initials: N
authors.lastname: Buschmann
authors.forename: Jerzy
authors.initials: J
authors.lastname: Stachura
authors.forename: Gösta
authors.initials: G
authors.lastname: Fischer
authors.forename: Ulrich
authors.initials: U
authors.lastname: Brinck
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D004273:DNA, Neoplasm / Q000032:analysis*; D005260:Female; D006801:Humans; D019044:Image Cytometry / Q000379:methods*; D008297:Male; D008545:Melanoma / Q000235:genetics* / Q000473:pathology; D008875:Middle Aged; D011003:Ploidies; D040081:Protein Array Analysis; D012394:Rosaniline Dyes; D012878:Skin Neoplasms / Q000235:genetics* / Q000473:pathology
chemical_list: D004273:DNA, Neoplasm; C007722:Feulgen stain; D012394:Rosaniline Dyes