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The Us27 Protein Of Human Cytomegalovirus Enhances Signaling By Human Chemokine Receptor Cxcr4, Kathleen Arnolds, Juliet V. Spencer
The Us27 Protein Of Human Cytomegalovirus Enhances Signaling By Human Chemokine Receptor Cxcr4, Kathleen Arnolds, Juliet V. Spencer
Creative Activity and Research Day - CARD
Human cytomegalovirus (HCMV) is a prevalent pathogen that causes little disease except in immune-compromised hosts. HCMV establishes life-long latency by manipulating host immune responses. We have found that the US27 protein profoundly alters the activity of host chemokine receptor CXCR4. Cells expressing US27 and CXCR4 exhibited greater migration and calcium signaling than cells expressing CXCR4 alone. The mechanism for this enhanced signaling appears to be increased expression of CXCR4, and we are continuing to investigate how US27 causes up-regulation of CXCR4. This work is expected to clarify the role of US27 in immune evasion and provide insights into treatment strategies.