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TRIM22 knockdown suppresses chronic myeloid leukemia via inhibiting PI3K/Akt/mTOR signaling pathway.

Abstract：

:Tripartite motif-containing 22 (TRIM22) is reported to participate in numerous cellular activities. Recent studies confirm that TRIM22 is a target gene for P53, and inhibits clonogenic growth of leukemic U-937 cells. The current study aims to discover the effect of TRIM22 in progression of human chronic myeloid leukemia (CML) and explore the related mechanism. TRIM22 was knocked down by siRNA transfection in CML cell K562. We observed that TRIM22 knockdown decreased proliferation and invasion in K562 cells. TRIM22 knockdown significantly induced cell cycle arrest by regulating the level of CDK4, Cyclin D1, P70S6K, and P53 in K562 cell. Moreover, loss of TRIM22 also promoted apoptosis through modulation of Bcl-2, Bax and active Caspase 3 in K562 cell. Furthermore, we demonstrated that TRIM22 knockdown inhibited the activation of PI3K/Akt/mTOR pathway by decreasing the level of the phosphorylated form p-Akt and p-mTOR in K562 cell. In conclusion, loss of TRIM22 suppresses the progression and invasion of CML through regulation of PI3K/Akt/mTOR pathway, suggesting that TRIM22 might be as a potential target for the treatment strategy of CML.

journal_name

Cell Biol Int

journal_title

Cell biology international

authors

Li L,Qi Y,Ma X,Xiong G,Wang L,Bao C

doi

10.1002/cbin.10989

subject

Has Abstract

pub_date

2018-09-01 00:00:00

pages

1192-1199

issue

9

eissn

1065-6995

issn

1095-8355

journal_volume

42

pub_type

杂志文章

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