Virologica Sinica

, Volume 32, Issue 5, pp 431–439 | Cite as

Human cytomegalovirus miR-US5-1 inhibits viral replication by targeting Geminin mRNA

  • Shujuan Jiang
  • Yujing Huang
  • Ying Qi
  • Rong HeEmail author
  • Zhongyang Liu
  • Yanping Ma
  • Xin Guo
  • Yaozhong Shao
  • Zhengrong Sun
  • Qiang RuanEmail author
Research Article


Viruses commonly create favorable cellular conditions for their survival through multiple mechanisms. MicroRNAs (miRNAs), which function as post-transcriptional regulators, are utilized by human cytomegalovirus (HCMV) in its infection and pathogenesis. In the present study, the DNA replication inhibitor Geminin (GMNN) was identified to be a direct target of hcmv-miR-US5-1. Overexpression of hcmv-miR-US5-1 could block the accumulation of GMNN during HCMV infection, and the decrease of GMNN expression caused by hcmv-miR-US5-1 or GMNN specific siRNA reduced HCMV DNA copies in U373 cells. Meanwhile, ectopic expression of hcmv-miR-US5-1 and consequent lower expression of GMNN influenced host cell cycle and proliferation. These results imply that hcmv-miR-US5-1 may affect viral replication and host cellular environment by regulating expression kinetics of GMNN during HCMV infection.


Human cytomegalovirus (HCMV) hcmv-miR-US5-1 Geminin (GMNN) DNA replication cell cycle 



This work was supported by the National Natural Science Foundation of China (81371788 and 81171580) and the Specialized Research Fund for the Doctoral Program of Higher Education (20112104110012) and the Outstanding Scientific Fund of Shengjing Hospital.

Author Contributions

QR and RH conceived and designed the experiments; SJJ, XG and YZS performed the experiments; YQ and ZYL analyzed the data; ZRS and YPM contributed reagents/materials/analysis tools; SJJ, QR, RH and YJH wrote the paper.

Compliance with Ethics Guidelines

The authors declare that they have no conflict of interest. This article does not contain any studies with human or animal subjects performed by any of the authors.

Supplementary material

12250_2017_4064_MOESM1_ESM.pdf (115 kb)
Human cytomegalovirus miR-US5-1 inhibits viral replication by targeting Geminin mRNA


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Copyright information

© Wuhan Institute of Virology, CAS and Springer Nature Singapore Pte Ltd. 2017

Authors and Affiliations

  1. 1.Virus Laboratory, the Affiliated Shengjing HospitalChina Medical UniversityShenyangChina
  2. 2.Clinical Genetics, the Affiliated Shengjing HospitalChina Medical UniversityShenyangChina

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