{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T11:49:33Z","timestamp":1777463373184,"version":"3.51.4"},"reference-count":26,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2006,7,18]],"date-time":"2006-07-18T00:00:00Z","timestamp":1153180800000},"content-version":"vor","delay-in-days":4142,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Intl Journal of Cancer"],"published-print":{"date-parts":[[1995,3,16]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Hepatoblastomas generally appear in children aged 2 or 3 years old and arise from apparently normal, noncirrhotic liver. To elucidate any possible role of p53 mutations in their genesis, we amplified and sequenced exons 5 to 8 of the p53 gene in 10 cases of hepatoblastoma. Somatic mutations were detected in 9 cases, in eight of which a common point mutation at the firstbase position of codon 157 was found, resulting in an aminoacid substitution of phenylalanine for valine. Two missense mutations in codon 244, and one each in codons 273 and 279, were also found, with 3 hepatoblastomas having double missense mutations. Out of the total of 12 mutations, 11 were G\u2010to\u2010T transversions. One was a G\u2010to\u2010A transition and guanines were always present on the transcribed strand. Furthermore, p53 overexpression was immunohistochemically observed in 7 out of 9 cases with p53 gene mutations, although the staining pattern was focal and heterogeneous. The findings suggest that particular environmental mutagens may be involved in mutagenesis of the p53 gene in some cases of hepatoblastomas and that p53 mutations at a specific site may play an important role in the genesis of this disease. \u00a9 1995 Wiley\u2010Liss, Inc.<\/jats:p>","DOI":"10.1002\/ijc.2910600610","type":"journal-article","created":{"date-parts":[[2007,2,20]],"date-time":"2007-02-20T00:38:49Z","timestamp":1171931929000},"page":"786-790","source":"Crossref","is-referenced-by-count":16,"title":["A mutational hot spot in the p53 gene is associated with hepatoblastomas"],"prefix":"10.1002","volume":"60","author":[{"given":"Hideaki","family":"Oda","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yoko","family":"Nakatsuru","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yasuo","family":"Imai","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Haruhiko","family":"Sugimura","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Takatoshi","family":"Ishikawa","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2006,7,18]]},"reference":[{"key":"e_1_2_1_2_1","doi-asserted-by":"publisher","DOI":"10.1038\/350429a0"},{"key":"e_1_2_1_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/1097-0142(19890901)64:5<1169::AID-CNCR2820640534>3.0.CO;2-I"},{"key":"e_1_2_1_4_1","first-page":"190","volume-title":"Atlas of tumor pathology, Fascicle 26","author":"Craig J. 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