MiR-27a Promotes Hemin-Induced Erythroid Differentiation of K562 Cells by Targeting CDC25B
Background/Aims: MicroRNAs (miRNAs) play a crucial role in erythropoiesis. MiR-23a∼27a∼24-2 clusters have been proven to take part in erythropoiesis via some proteins. CDC25B (cell division control Cdc2 phosphostase B) is also the target of mir-27a; whether it regulates erythropoiesis and its mechan...
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| Format: | Article |
| Language: | English |
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Cell Physiol Biochem Press GmbH & Co KG
2018-03-01
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| Series: | Cellular Physiology and Biochemistry |
| Subjects: | |
| Online Access: | https://www.karger.com/Article/FullText/488436 |
| _version_ | 1818163529646080000 |
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| author | Dongsheng Wang Si Si Qiang Wang Guangcheng Luo Qin Du Qi Liang Xiaolan Guo Guoyuan Zhang Jiafu Feng Zhengwei Leng |
| author_facet | Dongsheng Wang Si Si Qiang Wang Guangcheng Luo Qin Du Qi Liang Xiaolan Guo Guoyuan Zhang Jiafu Feng Zhengwei Leng |
| author_sort | Dongsheng Wang |
| collection | DOAJ |
| description | Background/Aims: MicroRNAs (miRNAs) play a crucial role in erythropoiesis. MiR-23a∼27a∼24-2 clusters have been proven to take part in erythropoiesis via some proteins. CDC25B (cell division control Cdc2 phosphostase B) is also the target of mir-27a; whether it regulates erythropoiesis and its mechanism are unknown. Methods: To evaluate the potential role of miR-27a during erythroid differentiation, we performed miR-27a gain- and loss-of-function experiments on hemin-induced K562 cells. We detected miR-27a expression after hemin stimulation at different time points. At the same time, the γ-globin gene also was measured via real-time PCR. According to the results of the chips, we screened the target protein of miR-27a through a dual-luciferase reporter assay and identified it via Western blot analyses. To evaluate the function of CDC25B, benzidine staining and flow cytometry were employed to detect the cell differentiation and cell cycle. Results: We found that miR-27a promotes hemin-induced erythroid differentiation of human K562 cells by targeting cell division cycle 25 B (CDC25B). Overexpression of miR-27a promotes the differentiation of hemin-induced K562 cells, as demonstrated by γ-globin overexpression. The inhibition of miR-27a expression suppresses erythroid differentiation, thus leading to a reduction in the γ-globin gene. CDC25B was identified as a new target of miR-27a during erythroid differentiation. Overexpression of miR-27a led to decreased CDC25B expression after hemin treatment, and CDC25B was up-regulated when miR-27a expression was inhibited. Moreover, the inhibition of CDC25B affected erythroid differentiation, as assessed by γ-globin expression. Conclusion: This study is the first report of the interaction between miR-27a and CDC25B, and it improves the understanding of miRNA functions during erythroid differentiation. |
| first_indexed | 2024-12-11T16:51:01Z |
| format | Article |
| id | doaj.art-52d4e40160294b029939f34411bcddd2 |
| institution | Directory Open Access Journal |
| issn | 1015-8987 1421-9778 |
| language | English |
| last_indexed | 2024-12-11T16:51:01Z |
| publishDate | 2018-03-01 |
| publisher | Cell Physiol Biochem Press GmbH & Co KG |
| record_format | Article |
| series | Cellular Physiology and Biochemistry |
| spelling | doaj.art-52d4e40160294b029939f34411bcddd22022-12-22T00:58:05ZengCell Physiol Biochem Press GmbH & Co KGCellular Physiology and Biochemistry1015-89871421-97782018-03-0146136537410.1159/000488436488436MiR-27a Promotes Hemin-Induced Erythroid Differentiation of K562 Cells by Targeting CDC25BDongsheng WangSi SiQiang WangGuangcheng LuoQin DuQi LiangXiaolan GuoGuoyuan ZhangJiafu FengZhengwei LengBackground/Aims: MicroRNAs (miRNAs) play a crucial role in erythropoiesis. MiR-23a∼27a∼24-2 clusters have been proven to take part in erythropoiesis via some proteins. CDC25B (cell division control Cdc2 phosphostase B) is also the target of mir-27a; whether it regulates erythropoiesis and its mechanism are unknown. Methods: To evaluate the potential role of miR-27a during erythroid differentiation, we performed miR-27a gain- and loss-of-function experiments on hemin-induced K562 cells. We detected miR-27a expression after hemin stimulation at different time points. At the same time, the γ-globin gene also was measured via real-time PCR. According to the results of the chips, we screened the target protein of miR-27a through a dual-luciferase reporter assay and identified it via Western blot analyses. To evaluate the function of CDC25B, benzidine staining and flow cytometry were employed to detect the cell differentiation and cell cycle. Results: We found that miR-27a promotes hemin-induced erythroid differentiation of human K562 cells by targeting cell division cycle 25 B (CDC25B). Overexpression of miR-27a promotes the differentiation of hemin-induced K562 cells, as demonstrated by γ-globin overexpression. The inhibition of miR-27a expression suppresses erythroid differentiation, thus leading to a reduction in the γ-globin gene. CDC25B was identified as a new target of miR-27a during erythroid differentiation. Overexpression of miR-27a led to decreased CDC25B expression after hemin treatment, and CDC25B was up-regulated when miR-27a expression was inhibited. Moreover, the inhibition of CDC25B affected erythroid differentiation, as assessed by γ-globin expression. Conclusion: This study is the first report of the interaction between miR-27a and CDC25B, and it improves the understanding of miRNA functions during erythroid differentiation.https://www.karger.com/Article/FullText/488436MicrornaErythropoiesisMiR-27aCDC25B |
| spellingShingle | Dongsheng Wang Si Si Qiang Wang Guangcheng Luo Qin Du Qi Liang Xiaolan Guo Guoyuan Zhang Jiafu Feng Zhengwei Leng MiR-27a Promotes Hemin-Induced Erythroid Differentiation of K562 Cells by Targeting CDC25B Cellular Physiology and Biochemistry Microrna Erythropoiesis MiR-27a CDC25B |
| title | MiR-27a Promotes Hemin-Induced Erythroid Differentiation of K562 Cells by Targeting CDC25B |
| title_full | MiR-27a Promotes Hemin-Induced Erythroid Differentiation of K562 Cells by Targeting CDC25B |
| title_fullStr | MiR-27a Promotes Hemin-Induced Erythroid Differentiation of K562 Cells by Targeting CDC25B |
| title_full_unstemmed | MiR-27a Promotes Hemin-Induced Erythroid Differentiation of K562 Cells by Targeting CDC25B |
| title_short | MiR-27a Promotes Hemin-Induced Erythroid Differentiation of K562 Cells by Targeting CDC25B |
| title_sort | mir 27a promotes hemin induced erythroid differentiation of k562 cells by targeting cdc25b |
| topic | Microrna Erythropoiesis MiR-27a CDC25B |
| url | https://www.karger.com/Article/FullText/488436 |
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