title: Use of complete coverage array comparative genomic hybridization to define copy number alterations on chromosome 3p in oral squamous cell carcinomas.
abstract: Loss of 3p has been associated with oral cancer progression and is common in many cancers. However, regions of alteration on 3p are poorly defined. We have constructed a high-resolution chromosomal array using a tiling set of 535 human bacterial artificial chromosomes that provides near complete coverage of 3p. Array comparative genomic hybridization analysis of 20 microdissected oral squamous cell carcinomas showed multiple and recurrent segments of copy number changes. These include a deletion containing the FHIT gene; novel segments of copy decrease at 3p22, 3p24, and 3p26; and an unexpected approximately 0.7 Mbp segmental increase at 3p21. These data strongly support the value of using chromosomal array comparative genomic hybridization for detailed profiling of oral squamous cell carcinomas.
authors.affiliation: British Columbia Cancer Research Centre, Vancouver, British Columbia, Canada. cgarnis@bccrc.ca
authors.forename: Cathie
authors.initials: C
authors.lastname: Garnis
authors.forename: Corisande
authors.initials: C
authors.lastname: Baldwin
authors.forename: Lewei
authors.initials: L
authors.lastname: Zhang
authors.forename: Miriam P
authors.initials: MP
authors.lastname: Rosin
authors.forename: Wan L
authors.initials: WL
authors.lastname: Lam
mesh_terms: D017766:Acid Anhydride Hydrolases; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002294:Carcinoma, Squamous Cell / Q000235:genetics*; D002893:Chromosomes, Human, Pair 3 / Q000235:genetics*; D005260:Female; D018628:Gene Dosage; D006801:Humans; D008297:Male; D008875:Middle Aged; D009062:Mouth Neoplasms / Q000235:genetics*; D009363:Neoplasm Proteins / Q000235:genetics; D009693:Nucleic Acid Hybridization / Q000379:methods; D000099170:Bis(5'-adenosyl)triphosphatase
chemical_list: D017766:Acid Anhydride Hydrolases; D009363:Neoplasm Proteins; D000099170:Bis(5'-adenosyl)triphosphatase