Abstract
Human cytomegalovirus (HCMV) has evolved several immune evasion strategies. One strategy is controlling the movement of peripheral blood mononuclear cells (PBMCs) by encoding homologues of chemokines. Our aim was to determine whether HCMV open reading frame (ORF) UL128 could encode a protein that attracts PBMCs like a β-chemokine. The recombinant UL128 protein was synthesized by construction of a stably transfected CHO-UL128 cell line, and a chemotaxis assay showed that UL128 was able to attract PBMCs with a potency equal to that of MIP-1α in vitro. We hypothesize that UL128 protein may act as a β-chemokine homologue in viral pathogenesis.
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Acknowledgments
This work was supported by research grants from the National Natural Science Foundation of China (No. 81071337), the Natural Science Foundation of Zhejiang Province (No. Z2110006) and the General Project of Education Department of Zhejiang Province (No. Y201017974). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
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The authors declare that they have no competing interests.
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Hui-hui, G., Ran, T., Qi, Z. et al. Recombinant HCMV UL128 expression and functional identification of PBMC-attracting activity in vitro . Arch Virol 158, 173–177 (2013). https://doi.org/10.1007/s00705-012-1378-8
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DOI: https://doi.org/10.1007/s00705-012-1378-8