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Expression of coxsackie and adenovirus receptor reduces the lung metastatic potential of murine tumor cells

✍ Scribed by Manabu Yamashita; Asami Ino; Kenji Kawabata; Fuminori Sakurai; Hiroyuki Mizuguchi

Publisher
John Wiley and Sons
Year
2007
Tongue
French
Weight
361 KB
Volume
121
Category
Article
ISSN
0020-7136

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✦ Synopsis

Abstract

The coxsackie and adenovirus receptor (CAR) is involved in the epithelial cell tight junction, the downregulated expression of which is observed in different cancer types. In the present study, we examined CAR's role in tumor metastasis using a B16 melanoma and CT26 colon adenocarcinoma model of experimental metastasis. In lung metastasis, the colony number of B16 cells stably expressing CAR (B16CAR) was significantly lower than that of the control CAR‐negative B16 cells. B16 and CT26 cells transiently expressing CAR, which were transduced with adenovirus (Ad) vector expressing CAR, also reduced lung metastasis, suggesting that CAR plays a role in the early stage of metastasis. CAR expression significantly decreased the accumulation of B16 cells in the lung after i.v. injection and the migration in vitro. CAR expression reduced expression of α~v~, α~4~, β~3~ and β~1~ integrin, which play important roles in attachment to cells or basement membrane. Thus, CAR expression likely acts as a metastatic suppressor. © 2007 Wiley‐Liss, Inc.

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