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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Liu, Chun-Yan Liu, Wen-Jun Bai, Yong-Qi Zhang, Teng Guo, Qu-Lian |
| Description | Author Affiliation: Liu WJ ( Department of Pediatrics, Affiliated Hospital of Sichuan Medical University, Luzhou, Sichuan 64600, P.R. China.); Zhang T ( Department of Pediatrics, Affiliated Hospital of Sichuan Medical University, Luzhou, Sichuan 64600, P.R. China.); Guo QL ( Department of Pediatrics, Affiliated Hospital of Sichuan Medical University, Luzhou, Sichuan 64600, P.R. China.); Liu CY ( Department of Pediatrics, Affiliated Hospital of Sichuan Medical University, Luzhou, Sichuan 64600, P.R. China.); Bai YQ ( Department of Pediatrics, Affiliated Hospital of Sichuan Medical University, Luzhou, Sichuan 64600, P.R. China.) |
| Abstract | Leukemia is the most common malignant disease in children with high incidence and mortality rates, and a poor treatment effect. The aim of the present study was to examine the changes in the expression of homeobox (Hox) A5 gene and its relationship with cell cycle and apoptosis through the intervention of human K562 myeloid leukemia cell line by all-trans retinoic acid (ATRA), to analyze the role of HOXA5 in the pathogenesis and development process of myeloid leukemia. The optimal concentration of ATRA to be used with K562 cells was determined using a cell counting kit8 (CCK8). After 24, 72 and 48 h following treatment of K562 cells with 10 µmol/l ATRA, cell cycle events and apoptosis were measured using flow cytometry. HOXA5 mRNA and protein expression in K562 cells was assessed by RTPCR and western blot analysis, and the relationship between HOXA5 expression and cell cycle and apoptosis was analyzed. The HOXA5 mRNA and protein expression levels were increased following treatment with ATRA in K562 cells. Apoptosis was increased significantly. The cell cycle was inhibited in G0/G1 phase. Cell proliferation was also inhibited. HOXA5 mRNA and protein expression rates positively correlated with cell apoptosis and the increased percentage and cell cycle of the G0/G1 phase. However, HOXA5 negatively correlated with the reduced percentage of S stage. In conclusion, the expression of HOXA5 in cells was increased following treatment with ATRA in K562 cells, in a time-dependent manner. Additionally, ATRA may inhibit the proliferation of K562 cells and promote apoptosis by upregulating the HOXA5 mRNA and protein expression. |
| ISSN | 17912997 |
| e-ISSN | 17913004 |
| DOI | 10.3892/mmr.2016.5086 |
| Journal | Molecular Medicine Reports |
| Issue Number | 5 |
| Volume Number | 13 |
| Language | English |
| Publisher | Spandidos Publications |
| Publisher Date | 2016-05-01 |
| Publisher Place | Greece |
| Access Restriction | Open |
| Subject Keyword | Discipline Molecular Biology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Genetics Biochemistry Molecular Biology Cancer Research Molecular Medicine Oncology |
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