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Titolo:
p53 mutation and allelic loss of chromosome 3p, 9p of preneoplastic lesions in patients with nonsmall cell lung carcinoma
Autore:
Kohno, H; Hiroshima, K; Toyozaki, T; Fujisawa, T; Ohwada, H;
Indirizzi:
Chiba,Univ, Sch Med, Inst Pulm Canc Res, Dept Pathol,Chuo Ku, Chiba 2608670 Chiba Univ Chiba Japan 2608670 c Res, Dept Pathol,Chuo Ku, Chiba 2608670 ChibaJapan, Sch Med, Inst Pulm Canc Res, Dept Surg,Chuo Ku, Chiba 2608670,Chiba Univ Chiba Japan 2608670 nc Res, Dept Surg,Chuo Ku, Chiba 2608670,
Titolo Testata:
CANCER
fascicolo: 2, volume: 85, anno: 1999,
pagine: 341 - 347
SICI:
0008-543X(19990115)85:2<341:PMAALO>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
K-RAS; GENETIC ALTERATIONS; FORMER SMOKERS; OVARIAN-CANCER; FREQUENT LOSS; LATE EVENT; ADENOCARCINOMA; ASSOCIATION; DELETIONS; POLYMORPHISM;
Keywords:
lung carcinoma; preneoplastic lesion; dysplasia; atypical adenomatous hyperplasia; p53 gene; microsatellite marker;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
28
Recensione:
Indirizzi per estratti:
Indirizzo: Kohno, H Chiba,Univ, Sch Med, Inst Pulm Canc Res, Dept Pathol,Chuo Ku, 1-8-1 Inohana Chiba Univ 1-8-1 Inohana Chiba Japan 2608670 o Ku, 1-8-1 Inohana
Citazione:
H. Kohno et al., "p53 mutation and allelic loss of chromosome 3p, 9p of preneoplastic lesions in patients with nonsmall cell lung carcinoma", CANCER, 85(2), 1999, pp. 341-347

Abstract

BACKGROUND. An accumulation of mutations can result in carcinogenesis. Comparing genetic alterations in preneoplastic lesions with those seen in cancer in the same patient may be helpful in the early diagnosis of lung carcinoma or preneoplastic lesions. METHODS. To identify genetic alterations that may play a role in the development of nonsmall cell lung carcinoma (NSCLC), the authors examined the p53 gene and microsatellite markers on chromosome 3p (D3S643, D3S1317), 9p (D9S171, IFNA) in 35 bronchial metaplastic lesions and 28 alveolar hyperplastic lesions from 61 patients. RESULTS. A total of 8 metaplastic lesions (I squamous metaplasia and 7 dysplasias) and 3 alveolar hyperplastic lesions (with atypia) showed genetic alterations, including loss of heterozygosity (LOH) of 3p, 9p and mutations of the p53 gene. In an analysis of microsatellite markers, 5 of 35 cases ofsquamous cell carcinoma (SCC) and 3 of 26 cases of adenocarcinoma (Ad) showed LOH in both preneoplastic lesions and synchronous cancers. Nine patients (25.7%) with SCC and 6 patients (23.1%) with Ad were shown to have mutations of the p53 gene by single-strand conformation polymorphism. In 2 of these 9 patients with SCC, the same mutation was observed in both dysplasia and SCC. CONCLUSIONS. These findings suggest that several genetic alterations may occur in preneoplastic lesions or the early stage of SCC of the lung, whereas the genetic alterations examined appeared to occur relatively late in thepathogenesis of pulmonary adenocarcinoma. (C) 1999 American Cancer Society.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/12/20 alle ore 02:33:42