ミカミ　テツオ   Mikami Tetsuo   三上　哲夫    所属   東邦大学  医学部 医学科    職種   教授
論文種別	原著
言語種別	英語
査読の有無	査読あり
表題	L-type amino acid transporter-1 (LAT1) expression in metastasis of gastric carcinoma: its correlation with size of metastatic lesion and Ki-67 labeling
掲載誌名	正式名：Pathology, research and practice 略　 称：Pathol Res Pract ISSNコード：03440338
出版社	Elsevier GmbH
巻・号・頁	211(7),pp.533-538
著者・共著者	Ichinoe M, Yanagisawa N, Mikami T†, Hana K, Nakada N, Endou H, Okayasu I, Murakumo Y
発行年月	2015/07
概要	L-type amino acid transporter 1 (LAT1) is one of the major amino acid transporters. High levels of LAT1 expression have been reported in various tumors, which can act as a novel prognostic marker. Previously, we demonstrated that LAT1 is highly expressed in advanced gastric carcinoma with lymph node metastasis, and proposed that LAT1 is an independent prognostic factor in non-scirrhous gastric carcinoma. The aim of the present study was to investigate the relationship between LAT1 expression and the size of lymph node metastatic lesions in gastric carcinoma. LAT1 and Ki-67 expression was immunohistochemically analyzed in 64 cases of advanced gastric carcinoma with lymph node metastasis. LAT1 expression in the metastatic lymph nodes was correlated with that in the primary lesions. The high LAT1 expression group showed a larger size of metastatic lesion and a higher Ki-67 labeling index than the low LAT1 expression group. LAT1 expression had a weak association with Ki-67 labeling index and tumor diameter of lymph nodes. These results suggest that LAT1 expression is associated with disease progression in gastric carcinoma. We proposed that LAT1 could be a potential therapeutic target for gastric carcinoma cases with large lymph node metastasis.
DOI	10.1016/j.prp.2015.03.007
PMID	25908107