Function of MEIS1 and miR-425 to the Regulating of Chronic Myeloid Leukemia Cell Proliferation / 中国实验血液学杂志
Journal of Experimental Hematology
; (6): 802-807, 2020.
Article
在 Zh
| WPRIM
| ID: wpr-829040
Responsible library:
WPRO
ABSTRACT
OBJECTIVE@#To investigate the function and mechanism of transcription factor of MEIS1 and miR-425 to the proliferation of chronic myeloid leukemia cell K562.@*METHODS@#Bioinformatic prediction was used to analyze the binding of MEIS1 in miR-425 promoter region. ChIP-qPCR coupled with dual luciferase assay was used to detect the combination of MEIS1 and the transcription activity of miR-425, and its regulative role in the transcription activity miR-425. CCK-8 was used to detect the effect of MEIS1 and miR-425 on cell proliferation. Flow cytometry with PI staining was used to detected the effect of MEIS1 and miR-425 on K562 cell cycle progression. Western blot was used to examine the effect of miR-452 on the expression level of MEIS1.@*RESULTS@#MEIS1 could bind the promoter of miR-425 and repressed its transcription. After K562 was transfected by shRNA, the K562 cell proliferation and cell cycle progression was significantly inhibitied. Moreover, after K562 cells were transfected by miR-425 mimic, cell proliferation and cell cycle was inhibited. The expression level of MEIS1 could be inhibited by the combination of miR-425 and MEIS1 3'UTR.@*CONCLUSION@#MEIS1 can inhibit the activity of miR-425 in transcriptional level, while the miR-425 can suppress the expression of MEIS1 protein in post-transnational level. Therefore, a regulatory circuit comprising from MEIS1 and miR-425 regulates K562 cell proliferation.
全文:
1
索引:
WPRIM
主要主题:
Leukemia, Myelogenous, Chronic, BCR-ABL Positive
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Apoptosis
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K562 Cells
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MicroRNAs
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Cell Proliferation
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Myeloid Ecotropic Viral Integration Site 1 Protein
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Genetics
研究类型:
Prognostic_studies
限制:
Humans
语言:
Zh
期刊:
Journal of Experimental Hematology
年:
2020
类型:
Article