β-arrestin1 Promotes the Concentration of Mitochondrial Reactive Oxygen in T-ALL Cells via MiR-652-5p.
10.19746/j.cnki.issn.1009-2137.2021.05.013
- Author:
Hao-Biao WANG
1
;
Shan LIU
1
;
Wei GUO
1
;
Hai-Yan LIU
2
;
Jie YU
2
;
Lin ZOU
3
Author Information
1. Center for Clinical Molecular Medicine of Children's Hospital in Chongqing Medical University, Chongqing 400014, China，National Clinical Research Center for Child Health and Disorders, Chongqing 400014, China，Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing 400014, China，Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China.
2. National Clinical Research Center for Child Health and Disorders, Chongqing 400014, China，Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing 400014, China，Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China，Center for Clinical Hematology, Children's Hospital in Chongqing Medical University, Chongqing 400014, China.
3. Center for Clinical Molecular Medicine of Children's Hospital in Chongqing Medical University, Chongqing 400014, China,National Clinical Research Center for Child Health and Disorders, Chongqing 400014, China,Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing 400014, China,Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China,Clinical Research Unit of Children's Hospital in Shanghai Jiaotong University, Shanghai 200062, China，E-mail: zoulin74@126.com.
- Publication Type:Journal Article
- MeSH:
Humans;
MicroRNAs/genetics*;
Mitochondria;
Oxygen;
Precursor T-Cell Lymphoblastic Leukemia-Lymphoma;
RNA, Messenger;
beta-Arrestin 1
- From:
Journal of Experimental Hematology
2021;29(5):1456-1461
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE:To investigate the effect of β-arrestin1 on the concentration of reactive oxygen species (ROS) in the mitochondria of acute T-lymphocytic leukemia (T-ALL) cells and its possible mechanisms.
METHODS:The stable T-ALL cell line with knocked down β-arrestin1 (Jurkat Siβ1) was constructed. Flow cytometry and probe assays were used to detect ROS content in cell and mitochondrial, respectively. The relationship between β-arrestin1 and microRNA was detected, analyzed and Q-PCR confirmed by microRNA microarray. The target genes of microRNA were predicated by miRbase software, identified by Western blot, and validated by Dual luciferase reporter gene.
RESULTS:Jurkat Siβ1 stable cell line was successfully constructed and it was found that ROS content was slightly reduced in Jurkat Siβ1 at the whole cell level, and the ROS content was also significantly reduced in mitochondria. MicroRNA microarray analysis revealed that multiple T-ALL related microRNAs showed differentially expressed, in which the expression of miR-652-5p was significantly increased in Jurkat Siβ1 (P<0.05 fold>2.0), and Q-PCR showed that miR-652-5p was nearly 5-fold up-regulated in Jurkat Siβ1. miRbase predicted that the P62 gene was the target gene of miR-652-5p which could regulates mitochondrial function. P62 protein showed highly expressed in stably knocked down miR-652-5p in Jurkat cells. Dual luciferase reporter gene assay confirms that P62 was the target gene of miR-652-5p.
CONCLUSION:β-arrestin1 can decreases the expression of miR-652-5p and deregulates the translational inhibition of P62 mRNA, thus to increase ROS content in mitochondria of T-ALL cells.
