期刊
JOURNAL OF CELL BIOLOGY
卷 155, 期 1, 页码 15-17出版社
ROCKEFELLER UNIV PRESS
DOI: 10.1083/jcb.200109001
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Phosphoinositide 3 kinases (PI3Ks)* are known as regulators of phagocytosis. Recent results demonstrate that class I and III PI3Ks act consecutively in phagosome formation and maturation, and that their respective products, phosphatidylinositol 3,4,5-trisphosphate (PI[3,4,5]P-3) and phosphatidylinositol 3-phosphate (PI[3]P), accumulate transiently at different stages. Phagosomes containing Mycobacterium tuberculosis do not acquire the PI(3)P-binding protein EEA1, which is required for phagosome maturation. This suggests a possible mechanism of how this microorganism evades degradation in phagolysosomes.
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