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Insect Immunity & Drosophila Gut Immune Response

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A Bacterial Effector Targets Mad2L2, an APC<br />

Inhibitor, to Modulate Host Cell Cycling<br />

Hiroki Iwai et al. 2007 Cell, Vol 130, 611-623, 2007<br />

Summary<br />

…Here, we show that the Shigella effector IpaB,<br />

when delivered into epithelial cells, causes cellcycle<br />

arrest by targeting Mad2L2, an anaphasepromoting<br />

complex/cyclosome (APC) inhibitor. ..<br />

These results strongly indicate that Shigella<br />

employ special tactics to influence epithelial<br />

renewal in order to promote bacterial<br />

colonization of intestinal epithelium<br />

microvilli<br />

Tight Jonction<br />

crypt<br />

α-defensin<br />

Paneth Cells<br />

Lymphocyte<br />

intra-épithélial<br />

Stem Cell<br />

Richard Locksley et al, <strong>Immunity</strong>.1er édition, p57.)

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