Effect of EI24 expression on the tumorigenesis of ApcMin/+ colorectal cancer mouse model.

Abstract:

:Etoposide-induced 2.4 kb transcript (EI24, also known as PIG8) is a p53 target gene involved in cell growth suppression and apoptosis and known to be frequently altered in human cancers. Although EI24 expression is decreased in various cancers and is associated with colorectal cancer progression and metastasis, the physiological function of EI24 in colorectal cancer is yet unclear. We generated an Ei24 conditional transgenic (Tg) mouse to study the therapeutic effects of Ei24 in vivo and evaluated whether Ei24 plays a role of a tumor suppressor using Ei24 Tg mouse crossed with ApcMin/+ mouse, which develops multiple intestinal adenomas. The overexpression of Ei24 failed to cause any notable difference in the number of polyps, lengths of the intestine and spleen, and survival rate between ApcMin/+ and ApcMin/+Ei24 Tg mice. Ei24 plays no significant role in colon cancer caused by the substitutional mutation of Apc in mice. Therefore, our result dismisses the hypothesized direct link between ApcMin/+ mutation and Ei24 expression in colorectal cancer model.

authors

Nam TW,Park SY,Lee JH,Roh JI,Lee HW

doi

10.1016/j.bbrc.2019.04.186

subject

Has Abstract

pub_date

2019-07-05 00:00:00

pages

1087-1092

issue

4

eissn

0006-291X

issn

1090-2104

pii

S0006-291X(19)30845-9

journal_volume

514

pub_type

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