생약복합조성물(HemoHIM)의 수지상세포 활성화 효과

Abstract

In our previous study, a novel herb mixture (HIM-Ⅰ) of Angelica gigas radix, Cnidium officinale rhizoma, and Paeonia japonica radix was developed to protect the intestinal and immune systems and to promote their recovery from radiation damage. A new herbal composition (HemoHIM) with the high immune modulating activity was developed from HIM-Ⅰ. In the present study, we examined the effects of HemoHIM on the maturation process of murine bone marrow (BM)-derived dendritic cells (DC). BM cells were cultured in the presence of IL-4 and GM-CSF and the generated immature DC were stimulated with HemoHIM for 24 hours. HemoHIM significantly enhanced the expression of co-stimulatory molecules, CD80 and CD86, especially. The activation capacity of HemoHIM-treated DC was significantly higher than that of immature DC, as analyzed by IL-2 and IFN-γ production and proliferation of the responding T cells in the co-culture with allogeneic T cells. The antigen-presenting capacity of HemoHIM-treated DC was also increased by the co-culture with OVA-specific T cells (HS-1), as analyzed by IL-2 and IFN-γ production and the proliferation. These results indicate that HemoHIM causes the maturation and activation of DC, which may be a part of mechanisms of immunomodulation by HemoHIM.