title: Validation of tissue microarray for the immunohistochemical profiling of melanoma.
abstract: Tissue microarray technology allows high throughput profiling of cancer specimens by immunohistochemical staining. Protein expression varies throughout tumour specimens resulting in heterogeneous staining patterns, which has led to doubts as to the accuracy of tissue microarray. In an effort to validate the use of tissue microarray for melanoma immunohistochemical investigation, a study was conducted comparing the concordance of MCAM staining between whole tumour specimens and tissue microarray core biopsies. Data on full tissue sections were compared with the results of one to four 0.6 mm core biopsies per tumour on a tissue array. It was revealed that concordance of tissue array core biopsies in quadruplicate compared with full-section analysis for the expression and intensity of expression of MCAM.
authors.affiliation: RAFT Institute of Plastic Surgery, Mount Vernon Hospital, Northwood, Middlesex, HA6 2RN, UK. pacificom@raft.ac.uk
authors.forename: Marc D
authors.initials: MD
authors.lastname: Pacifico
authors.forename: Rajiv
authors.initials: R
authors.lastname: Grover
authors.forename: Paul
authors.initials: P
authors.lastname: Richman
authors.forename: Frances
authors.initials: F
authors.lastname: Daley
authors.forename: George D
authors.initials: GD
authors.lastname: Wilson
mesh_terms: D005260:Female; D020869:Gene Expression Profiling; D006801:Humans; D007124:Immunoenzyme Techniques; D008297:Male; D008545:Melanoma / Q000235:genetics* / Q000378:metabolism / Q000473:pathology; D012878:Skin Neoplasms / Q000235:genetics* / Q000378:metabolism / Q000473:pathology