Immune modulation by virus-encoded secreted chemokine binding proteins

Area of Science:

• Immunology
• Virology
• Molecular Biology

Background:

• Chemokines are crucial chemoattractant cytokines guiding immune cell migration in innate and adaptive immunity.
• Large DNA viruses, such as herpesviruses and poxviruses, employ immune evasion strategies.
• These viruses encode soluble viral chemokine binding proteins (vCBPs) that sequester chemokines.

Purpose of the Study:

• To review secreted viral chemokine binding proteins identified in large DNA viruses.
• To highlight the diverse mechanisms by which vCBPs interfere with chemokine function.
• To discuss the role of vCBPs in virus pathogenesis.

Main Methods:

• Literature review of scientific publications on viral chemokine binding proteins.
• Analysis of reported mechanisms of chemokine binding and interference.
• Synthesis of information on the contribution of vCBPs to viral pathogenesis.

Main Results:

• Identification and classification of various secreted vCBPs from different viral families.
• Elucidation of diverse vCBP strategies, including direct binding and allosteric modulation of chemokines.
• Demonstration of vCBPs' significant role in modulating host immune responses and promoting viral spread.

Conclusions:

• Secreted vCBPs represent a key viral immune evasion mechanism.
• Understanding vCBP function provides insights into host-pathogen interactions.
• vCBPs are important contributors to viral pathogenesis and potential therapeutic targets.