{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,3]],"date-time":"2025-12-03T17:29:46Z","timestamp":1764782986480},"reference-count":25,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2006,7,17]],"date-time":"2006-07-17T00:00:00Z","timestamp":1153094400000},"content-version":"vor","delay-in-days":4566,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Intl Journal of Cancer"],"published-print":{"date-parts":[[1994,1,15]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Chromosome 17 is a frequent target during breast\u2010cancer formation and progression. It has been shown to be affected by allele losses at multiple sites, as well as by DNA amplification. Our aim was to delineate a map of the genetic alterations on chromosome 17 in a given set of breast tumors. To this end we analyzed 151 pairs of tumor and cognate lymphocyte DNAs by Southern blotting with 5 RFLP or VNTR probes and by PCR at 8 CA repeat polymorphic loci for LOHs. Moreover, we studied DNA amplification of the <jats:italic>evi<\/jats:italic>2, <jats:italic>erb<\/jats:italic>B2, <jats:italic>thra<\/jats:italic>1, <jats:italic>gcsf<\/jats:italic> and <jats:italic>rara<\/jats:italic> genes. Data presented here point strongly to the existence of 5 distinct regions of allele losses on chromosome 17:2 on 17p, 3 on 17q. Of the 2 regions on 17p, one involves <jats:italic>tp<\/jats:italic>53 while the second is located more distally toward the telomere. LOH was found in 45.9% and 58.8% respectively. The 3 regions on 17q are located: (i) on the proximal portion of the long arm band q21, corresponding to the <jats:italic>brcal<\/jats:italic> region; (ii) in a central region defined by the marker D17S74; (iii) on the distal part of 17q (band q25) characterized by losses of the marker D17S24. Each of these regions presented respectively allele losses in 47.5%, 33.3% and 40.8% of the informative tumors. Whereas some tumors presented patterns of LOH consistent with the loss of a complete chromosomal arm or of large portions of the chromosome, a high proportion of the analyzed tumors showed interstitial losses. Amplifications were found in 15% of the tumors and were centered around <jats:italic>erb<\/jats:italic>B2. An altered chromosome 17 (bearing an LOH or a DNA amplification) was found in more than 80% of the breast tumor set analyzed here and multiple anomalies affecting this chromosome were often detected in the same sample.<\/jats:p>","DOI":"10.1002\/ijc.2910560208","type":"journal-article","created":{"date-parts":[[2007,2,19]],"date-time":"2007-02-19T23:38:55Z","timestamp":1171928335000},"page":"193-199","source":"Crossref","is-referenced-by-count":43,"title":["Patterns of allele losses suggest the existence of five distinct regions of loh on chromosome 17 in breast cancer"],"prefix":"10.1002","volume":"56","author":[{"given":"Regina","family":"Kirchweger","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Robert","family":"Zeillinger","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Christian","family":"Schneeberger","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Paul","family":"Speiser","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Genevi\u00e8ve","family":"Louason","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Charles","family":"Theillet","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2006,7,17]]},"reference":[{"key":"e_1_2_1_2_1","first-page":"1389","article-title":"Proto\u2010oncogene amplification and breast cancer phenotype","volume":"4","author":"Adnane J.","year":"1989","journal-title":"Oncogens"},{"key":"e_1_2_1_3_1","first-page":"3391","article-title":"Evidence for a 17p tumor related locus distinct from p53 in pediatric primitive neuroectodermal tumors","volume":"52","author":"Biegel J. 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