当前位置： SCI文献检索 > JOURNAL OF MEDICAL VIROLOGY期刊下所有文献 > Deletions and single-base mutations within the carboxy-terminal region of the latent membrane protein 1 oncogene in Epstein-Barr virus-related gastric cancers of southern Japan.

Deletions and single-base mutations within the carboxy-terminal region of the latent membrane protein 1 oncogene in Epstein-Barr virus-related gastric cancers of southern Japan.

Abstract：

:The 30-base pair (bp) deletion of the cytoplasmic carboxy-terminal domain of the latent membrane protein 1 (LMP-1) gene was analyzed in 37 frozen tissues from patients with Epstein-Barr virus (EBV)-related gastric cancer and 18 throat washings from healthy adults in southern Japan. The 30-bp deletion was identified in 33 (91.7%) of 36 specimens of EBV-related gastric cancers and in 15 (83.3%) of 18 throat washings from healthy adults. In one case of gastric cancer, an additional 9-bp deletion was identified downstream of the 30-bp deletion. From the last transmembrane domain to the end of the carboxy terminal of LMP-1, mutations were examined in 37 cases of gastric cancers and in three cases of throat washings. Twenty-eight nonsilent mutations were identified in this region of EBV-related gastric cancer and throat washings. Five nonsilent mutations at positions 168,755, 168,746, 168,687, 168,357, and 168,355 were identified in all 30-bp-deleted cases of EBV-related gastric cancers and throat washings. However, these nonsilent mutations were not identified in three patients without the 30-bp deletion. Although the deletion and single-base mutations of the LMP-1 gene in gastric cancers and throat washings were similar to those of nasopharyngeal carcinoma in Taiwan and China, more single-base mutations were found in southern Japan. These data indicate that high prevalence of the 30-bp deletion of the LMP-1 gene in gastric cancers may reflect the prevalence of the deletion variant in the normal population in southern Japan.

journal_name

J Med Virol

journal_title

Journal of medical virology

authors

Mori S,Itoh T,Tokunaga M,Eizuru Y

doi

10.1002/(sici)1096-9071(199902)57:2<152::aid-jmv11

subject

Has Abstract

pub_date

1999-02-01 00:00:00

pages

152-8

issue

2

eissn

0146-6615

issn

1096-9071

pii

10.1002/(SICI)1096-9071(199902)57:2<152::AID-JMV11

journal_volume

57

pub_type

杂志文章

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