Different Response Profiles of Gastrointestinal Cancer Cells to an L-Type Amino Acid Transporter Inhibitor, JPH203.
Anticancer Res
; 39(1): 159-165, 2019 Jan.
Article
em En
| MEDLINE
| ID: mdl-30591453
ABSTRACT
BACKGROUND/AIM:
L-type amino acid transporter 1 (LAT1) is a promising molecular target for cancer therapy. The present study aimed to characterize the anti-cancer effects of JPH203, an LAT1-selective inhibitor, on gastrointestinal cancer cells. MATERIALS ANDMETHODS:
Three esophageal, two gastric, and two colon cancer cell lines were used. Cytotoxic effects of JPH203 were assessed by a WST-8 assay. LAT1 mRNA levels were determined by quantitative PCR. The inhibitory property of JPH203 against LAT1 function was examined by a transport assay.RESULTS:
JPH203 treatment significantly reduced the viability of all gastric and colon cancer cells. While LAT1 expression levels and inhibitory potencies of JPH203 on LAT1 functions were comparable among the cells, all the esophageal cells were resistant to JPH203.CONCLUSION:
JPH203 was effective in reducing gastric and colon cancer cells. To clarify its cell type-dependent efficacy, identification of the causal factors for JPH203 resistance will be needed.Palavras-chave
Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Tirosina
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Benzoxazóis
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Neoplasias do Colo
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Transportador 1 de Aminoácidos Neutros Grandes
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Neoplasias Gastrointestinais
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article