GSBS Student Publications

Title

Efficient dengue virus (DENV) infection of human muscle satellite cells upregulates type I interferon response genes and differentially modulates MHC I expression on bystander and DENV-infected cells

UMMS Affiliation

Graduate School of Biomedical Sciences; Center for Infectious Disease and Vaccine Research; Department of Cell Biology

Date

6-19-2008

Document Type

Article

Medical Subject Headings

Cells, Cultured; Dengue Virus; *Gene Expression Profiling; Gene Expression Regulation; Histocompatibility Antigens Class I; Humans; Muscle Cells; Oligonucleotide Array Sequence Analysis; Reverse Transcriptase Polymerase Chain Reaction

Disciplines

Life Sciences | Medicine and Health Sciences

Abstract

Dengue virus (DENV) is a mosquito-borne flavivirus that causes an acute febrile disease in humans, characterized by musculoskeletal pain, headache, rash and leukopenia. The cause of myalgia during DENV infection is still unknown. To determine whether DENV can infect primary muscle cells, human muscle satellite cells were exposed to DENV in vitro. The results demonstrated for the first time high-efficiency infection and replication of DENV in human primary muscle satellite cells. Changes in global gene expression were also examined in these cells following DENV infection using Affymetrix GeneChip analysis. The differentially regulated genes belonged to two main functional categories: cell growth and development, and antiviral type I interferon (IFN) response genes. Increased expression of the type I IFN response genes for tumour necrosis factor-related apoptosis-inducing ligand (TRAIL), melanoma-derived antigen 5 (MDA-5), IFN-gamma-inducible protein 10 (IP-10), galectin 3 soluble binding protein (LGals3BP) and IFN response factor 7 (IRF7) was confirmed by quantitative RT-PCR. Furthermore, higher levels of cell-surface-bound intracellular adhesion molecule-1 (ICAM-1) and soluble ICAM-1 in the cell-culture medium were detected following DENV infection. However, DENV infection impaired the ability of the infected cells in the culture medium to upregulate cell-surface expression of MHC I molecules, suggesting a possible mechanism of immune evasion by DENV. The findings of this study warrant further clinical research to identify whether muscle cells are targets for DENV infection during the acute stage of the disease in vivo.

Rights and Permissions

Citation: J Gen Virol. 2008 Jul;89(Pt 7):1605-15. Link to article on publisher's site

DOI of Published Version

10.1099/vir.0.2008/000968-0

Related Resources

Link to Article in PubMed

Journal Title

The Journal of general virology

PubMed ID

18559930