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SENP3-mediated host defense response contains HBV replication and restores protein synthesis.

Publication ,  Journal Article
Xi, R; Kadur Lakshminarasimha Murthy, P; Tung, K-L; Guy, CD; Wan, J; Li, F; Wang, Z; Li, X; Varanko, A; Rakhilin, N; Xin, Y; Liu, B; Su, L ...
Published in: PLoS One
2019

Certain organs are capable of containing the replication of various types of viruses. In the liver, infection of Hepatitis B virus (HBV), the etiological factor of Hepatitis B and hepatocellular carcinoma (HCC), often remains asymptomatic and leads to a chronic carrier state. Here we investigated how hepatocytes contain HBV replication and promote their own survival by orchestrating a translational defense mechanism via the stress-sensitive SUMO-2/3-specific peptidase SENP3. We found that SENP3 expression level decreased in HBV-infected hepatocytes in various models including HepG2-NTCP cell lines and a humanized mouse model. Downregulation of SENP3 reduced HBV replication and boosted host protein translation. We also discovered that IQGAP2, a Ras GTPase-activating-like protein, is a key substrate for SENP3-mediated de-SUMOylation. Downregulation of SENP3 in HBV infected cells facilitated IQGAP2 SUMOylation and degradation, which leads to suppression of HBV gene expression and restoration of global translation of host genes via modulation of AKT phosphorylation. Thus, The SENP3-IQGAP2 de-SUMOylation axis is a host defense mechanism of hepatocytes that restores host protein translation and suppresses HBV gene expression.

Duke Scholars

Published In

PLoS One

DOI

EISSN

1932-6203

Publication Date

2019

Volume

14

Issue

1

Start / End Page

e0209179

Location

United States

Related Subject Headings

  • ras GTPase-Activating Proteins
  • Virus Replication
  • Sumoylation
  • Substrate Specificity
  • Proto-Oncogene Proteins c-akt
  • Models, Biological
  • Mice, Transgenic
  • Mice
  • Humans
  • Host Microbial Interactions
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Xi, R., Kadur Lakshminarasimha Murthy, P., Tung, K.-L., Guy, C. D., Wan, J., Li, F., … Shen, X. (2019). SENP3-mediated host defense response contains HBV replication and restores protein synthesis. PLoS One, 14(1), e0209179. https://doi.org/10.1371/journal.pone.0209179
Xi, Rui, Preetish Kadur Lakshminarasimha Murthy, Kuei-Ling Tung, Cynthia D. Guy, Ji Wan, Feng Li, Zhuo Wang, et al. “SENP3-mediated host defense response contains HBV replication and restores protein synthesis.PLoS One 14, no. 1 (2019): e0209179. https://doi.org/10.1371/journal.pone.0209179.
Xi R, Kadur Lakshminarasimha Murthy P, Tung K-L, Guy CD, Wan J, Li F, et al. SENP3-mediated host defense response contains HBV replication and restores protein synthesis. PLoS One. 2019;14(1):e0209179.
Xi, Rui, et al. “SENP3-mediated host defense response contains HBV replication and restores protein synthesis.PLoS One, vol. 14, no. 1, 2019, p. e0209179. Pubmed, doi:10.1371/journal.pone.0209179.
Xi R, Kadur Lakshminarasimha Murthy P, Tung K-L, Guy CD, Wan J, Li F, Wang Z, Li X, Varanko A, Rakhilin N, Xin Y, Liu B, Qian S-B, Su L, Han Y, Shen X. SENP3-mediated host defense response contains HBV replication and restores protein synthesis. PLoS One. 2019;14(1):e0209179.

Published In

PLoS One

DOI

EISSN

1932-6203

Publication Date

2019

Volume

14

Issue

1

Start / End Page

e0209179

Location

United States

Related Subject Headings

  • ras GTPase-Activating Proteins
  • Virus Replication
  • Sumoylation
  • Substrate Specificity
  • Proto-Oncogene Proteins c-akt
  • Models, Biological
  • Mice, Transgenic
  • Mice
  • Humans
  • Host Microbial Interactions