A new insight into viral proteins as Immunomodulatory therapeutic agents. KSHV vOX2 a homolog of human CD200 as a potent anti-inflammatory protein
A new insight into viral proteins as Immunomodulatory therapeutic agents. KSHV vOX2 a homolog of human CD200 as a potent anti-inflammatory protein
عنوان فارسی :
A new insight into viral proteins as Immunomodulatory therapeutic agents. KSHV vOX2 a homolog of human CD200 as a potent anti-inflammatory protein
عنوان انگلیسی :
A new insight into viral proteins as Immunomodulatory therapeutic agents. KSHV vOX2 a homolog of human CD200 as a potent anti-inflammatory protein
چکیده انگلیسی:
The physiologic function of the immune system is defense against infectious microbes and internal tumour cells, Therefore, need to have precise modulatory mechanisms to maintain the body homeostasis. The mammalian cellular CD200 (OX2)/CD200R interaction is one of such modulatory mechanisms in which myeloid and lymphoid cells are regulated. CD200 and CD200R molecules are membrane proteins that their immunomodulatory effects are able to suppress inflammatory responses, particularly in the privilege sites such as CNS and eyes. Kaposi’s sarcoma-associated herpesvirus (KSHV), encodes a wide variety of immunoregulatory proteins which play central roles in modulating inflammatory and anti-inflammatory responses in favour of virus dissemination. One such protein is a homologue of the, encoded by open reading frame (ORF) K14 and therefore called vOX2. Based on its gene expression profile during the KSHV life cycle, it is hypothesised that vOX2 modulates host inflammatory responses. Moreover, it seems that vOX2 involves in cell adhesion and modulates innate immunity and promotes Th2 immune responses. In this review the activities of mammalian CD200 and KSHV CD200 in cell adhesion and immune system modulation are reviewed in the context of potential therapeutic agents.
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