K Lumniczky, S Antal, E Unger, E J Hidvégi, G Sáfrány
{"title":"Oncogenic changes in murine lymphoid tumors induced by in utero exposure to ionizing radiation.","authors":"K Lumniczky, S Antal, E Unger, E J Hidvégi, G Sáfrány","doi":"10.1002/(SICI)1520-6823(1997)5:3<158::AID-ROI15>3.0.CO;2-2","DOIUrl":null,"url":null,"abstract":"<p><p>We have investigated the oncogenic alterations in murine lymphomas induced by in utero exposure to gamma-radiation. The expression of the myc oncogene increased in 23% of the tumors. Alterations in the expression of the ras oncogenes and in the p53 tumor suppressor gene were not characteristic. The p53 gene was mutated in a low percentage of the tumors (12%). Ras mutations were not detected. Loss of heterozygosity (LOH) at the p53 locus was found in 30% of the tumors, and LOH at the mts tumor suppressor gene was detected in 23% of lymphomas. Multiple oncogenic changes were infrequent in the investigated tumors. There were no essential differences in the frequency of carcinogenic alterations in spontaneous and gamma-radiation-induced lymphomas.</p>","PeriodicalId":20894,"journal":{"name":"Radiation oncology investigations","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1997-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/(SICI)1520-6823(1997)5:3<158::AID-ROI15>3.0.CO;2-2","citationCount":"5","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Radiation oncology investigations","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1002/(SICI)1520-6823(1997)5:3<158::AID-ROI15>3.0.CO;2-2","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 5
Abstract
We have investigated the oncogenic alterations in murine lymphomas induced by in utero exposure to gamma-radiation. The expression of the myc oncogene increased in 23% of the tumors. Alterations in the expression of the ras oncogenes and in the p53 tumor suppressor gene were not characteristic. The p53 gene was mutated in a low percentage of the tumors (12%). Ras mutations were not detected. Loss of heterozygosity (LOH) at the p53 locus was found in 30% of the tumors, and LOH at the mts tumor suppressor gene was detected in 23% of lymphomas. Multiple oncogenic changes were infrequent in the investigated tumors. There were no essential differences in the frequency of carcinogenic alterations in spontaneous and gamma-radiation-induced lymphomas.
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