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Open AccessArticle

miR-218 Inhibits Erythroid Differentiation and Alters Iron Metabolism by Targeting ALAS2 in K562 Cells

1
CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, China
2
College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editor: Martin Pichler
Int. J. Mol. Sci. 2015, 16(12), 28156-28168; https://doi.org/10.3390/ijms161226088
Received: 9 October 2015 / Revised: 13 November 2015 / Accepted: 17 November 2015 / Published: 26 November 2015
(This article belongs to the Special Issue MicroRNA Regulation)
microRNAs (miRNAs) are involved in a variety of biological processes. The regulatory function and potential role of miRNAs targeting the mRNA of the 5′-aminolevulinate synthase 2 (ALAS2) in erythropoiesis were investigated in order to identify miRNAs which play a role in erythroid iron metabolism and differentiation. Firstly, the role of ALAS2 in erythroid differentiation and iron metabolism in human erythroid leukemia cells (K562) was confirmed by ALAS2 knockdown. Through a series of screening strategies and experimental validations, it was identified that hsa-miR-218 (miR-218) targets and represses the expression of ALAS2 by binding to the 3′-untranslated region (UTR). Overexpression of miR-218 repressed erythroid differentiation and altered iron metabolism in K562 cells similar to that seen in the ALAS2 knockdown in K562 cells. In addition to iron metabolism and erythroid differentiation, miR-218 was found to be responsible for a reduction in K562 cell growth. Taken together, our results show that miR-218 inhibits erythroid differentiation and alters iron metabolism by targeting ALAS2 in K562 cells. View Full-Text
Keywords: miR-218; ALAS2; erythroid differentiation; iron metabolism miR-218; ALAS2; erythroid differentiation; iron metabolism
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MDPI and ACS Style

Li, Y.; Liu, S.; Sun, H.; Yang, Y.; Qi, H.; Ding, N.; Zheng, J.; Dong, X.; Qu, H.; Zhang, Z.; Fang, X. miR-218 Inhibits Erythroid Differentiation and Alters Iron Metabolism by Targeting ALAS2 in K562 Cells. Int. J. Mol. Sci. 2015, 16, 28156-28168. https://doi.org/10.3390/ijms161226088

AMA Style

Li Y, Liu S, Sun H, Yang Y, Qi H, Ding N, Zheng J, Dong X, Qu H, Zhang Z, Fang X. miR-218 Inhibits Erythroid Differentiation and Alters Iron Metabolism by Targeting ALAS2 in K562 Cells. International Journal of Molecular Sciences. 2015; 16(12):28156-28168. https://doi.org/10.3390/ijms161226088

Chicago/Turabian Style

Li, Yanming; Liu, Shuge; Sun, Hongying; Yang, Yadong; Qi, Heyuan; Ding, Nan; Zheng, Jiawen; Dong, Xunong; Qu, Hongzhu; Zhang, Zhaojun; Fang, Xiangdong. 2015. "miR-218 Inhibits Erythroid Differentiation and Alters Iron Metabolism by Targeting ALAS2 in K562 Cells" Int. J. Mol. Sci. 16, no. 12: 28156-28168. https://doi.org/10.3390/ijms161226088

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