PMID- 18285259 OWN - NLM STAT- MEDLINE DCOM- 20080408 LR - 20091103 IS - 0002-9173 (Print) IS - 0002-9173 (Linking) VI - 129 IP - 3 DP - 2008 Mar TI - Analysis of chromosome 1p abnormalities in renal oncocytomas by loss of heterozygosity studies: correlation with conventional cytogenetics and fluorescence in situ hybridization. PG - 377-82 LID - 10.1309/KC2465ANDWVAXYDM [doi] AB - We previously showed by cytogenetics and fluorescence in situ hybridization (FISH) that the most common chromosomal abnormality in renal oncocytomas is loss of chromosome 1 or 1p. In the present study, we evaluated chromosome 1 by loss of heterozygosity (LOH) studies. DNA was extracted from paraffin sections. Three microsatellite markers were used: D1S508, D1S199, and D1S2734. The regions targeted by FISH probes and LOH markers were close to each other but not overlapping. Among 16 tumors evaluated by all 3 techniques, in 2 cases, LOH could not be interpreted. LOH was detected in at least 1 locus in 12 (86%) of 14 renal oncocytomas studied, with other loci being noninformative or not interpretable (1 case). In 2 cases, the LOH results were inconclusive. These results provide further evidence to support widespread abnormalities in chromosome 1p in renal oncocytoma. Determining whether such abnormalities are unique to renal oncocytomas or are also present in other tumors requires further studies. FAU - Picken, Maria M AU - Picken MM AD - Department of Pathology, Loyola University Medical Center, Maywood, IL 60153, USA. mpicken@lumc.edu FAU - Chyna, Brent AU - Chyna B FAU - Flanigan, Robert C AU - Flanigan RC FAU - Lee, John M AU - Lee JM LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Am J Clin Pathol JT - American journal of clinical pathology JID - 0370470 RN - 0 (DNA, Neoplasm) SB - IM MH - Adenoma, Oxyphilic/*genetics MH - Adult MH - Aged MH - Aged, 80 and over MH - Chromosome Aberrations MH - Chromosomes, Human, Pair 1/*genetics MH - DNA, Neoplasm/analysis MH - Female MH - Humans MH - In Situ Hybridization, Fluorescence MH - Kidney Neoplasms/*genetics MH - Loss of Heterozygosity MH - Male MH - Microsatellite Repeats MH - Middle Aged MH - Polymerase Chain Reaction EDAT- 2008/02/21 09:00 MHDA- 2008/04/09 09:00 CRDT- 2008/02/21 09:00 PHST- 2008/02/21 09:00 [pubmed] PHST- 2008/04/09 09:00 [medline] PHST- 2008/02/21 09:00 [entrez] AID - U350641534756KG8 [pii] AID - 10.1309/KC2465ANDWVAXYDM [doi] PST - ppublish SO - Am J Clin Pathol. 2008 Mar;129(3):377-82. doi: 10.1309/KC2465ANDWVAXYDM.