Multiple microRNAs modulate p21Cip1/Waf1 expression by directly targeting its 3′ untranslated region (original) (raw)

Oncogene volume 29, pages 2302–2308 (2010)Cite this article

Subjects

Abstract

Cyclin-dependent kinase inhibitor 1A (CDKN1A), also known as p21Cip1/Waf1, is a master downstream effector of tumor suppressors. In this study, we experimentally demonstrate through a high-throughput luciferase reporter screen that p21Cip1/Waf1 can be directly targeted by nearly 28 microRNAs (miRNAs). The results were further confirmed by a series of mutational analyses and luciferase reporter assays. These 28 miRNAs can substantially inhibit p21Cip1/Waf1 expression, predominantly at translational level. Many of these miRNAs were upregulated in cancers and might serve as modulators of oncogenesis. Furthermore, 8 of these 28 p21-regulating miRNAs are located in the chromosome 19 miRNA cluster, the largest miRNA gene cluster in humans, and they can clearly promote cell proliferation and cell-cycle progression in choriocarcinoma cells. In conclusion, our screening strategy provides an alternative approach to uncovering miRNA modulators of an individual mRNA, and it has identified multiple miRNAs that can suppress p21Cip1/Waf1 expression by directly targeting its 3′ untranslated region.

This is a preview of subscription content, access via your institution

Access options

Subscribe to this journal

Receive 50 print issues and online access

$259.00 per year

only $5.18 per issue

Buy this article

USD 39.95

Prices may be subject to local taxes which are calculated during checkout

Additional access options:

Figure 1

The alternative text for this image may have been generated using AI.

Figure 2

The alternative text for this image may have been generated using AI.

Figure 3

The alternative text for this image may have been generated using AI.

Figure 4

The alternative text for this image may have been generated using AI.

Similar content being viewed by others

References

Download references

Acknowledgements

We are most grateful for Dr T Didier's gifts of the pWPXL, psPAX2 and pMD2.G lentivirus plasmids. This work was supported by grants from the Science & Technology Commission of Shanghai Municipality (07DJ14006), the Ministry of Health of China (2008ZX10002-017), the Ministry of Human Resources and Social Security of China (2007-170) and the Doctoral Program of Higher Education of China (200802480076).

Author information

Author notes

  1. S Wu and S Huang: These authors contributed equally to this work.

Authors and Affiliations

  1. Department of Hematology, Fujian Medical University Union Hospital, Fujian Institute of Hematology, Fuzhou, China
    S Wu & R Zhan
  2. State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Shanghai Jiao Tong University School of Medicine, Shanghai, China
    S Wu, S Huang, J Ding, Y Zhao, L Liang & X He
  3. The International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
    T Liu

Authors

  1. S Wu
  2. S Huang
  3. J Ding
  4. Y Zhao
  5. L Liang
  6. T Liu
  7. R Zhan
  8. X He

Corresponding authors

Correspondence toR Zhan or X He.

Ethics declarations

Competing interests

The authors declare no conflict of interest.

Additional information

Supplementary Information accompanies the paper on the Oncogene website

Supplementary information

Rights and permissions

About this article

Cite this article

Wu, S., Huang, S., Ding, J. et al. Multiple microRNAs modulate p21Cip1/Waf1 expression by directly targeting its 3′ untranslated region.Oncogene 29, 2302–2308 (2010). https://doi.org/10.1038/onc.2010.34

Download citation

Keywords

This article is cited by

Associated content