상기생 물추출물이 대식세포 활성화와 Th1 반응에 미치는 효과
Effect of Loranthi Ramuluswatet Extract on Macrophages Activation and Th1 Response
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In the recently, increased concern has been focused on the pharmacology and clinical utility of herbal extracts and derivatives as a drug or adjunct to chemotherapy and immunotherapy. Here we investigated the effect of the water extract of Loranthi Ramulus (LR) in production of inflammatory mediators and expression of toll-like receptor (TLR)-4, CD14 from peritoneal macrophage. We assayed the effect of LR water extract in cell proliferation in vitro and Th1/Th2 cytokine level in vivo. In peritoneal macrophages, water extract of LR water extract increased the production of Nitric oxide (NO) and TNF-α. Also, LR water extract increased Con A-induced cell proliferation and IgG1, IgG2a level in serum. However, i.p. injection of water extract of LR water extract did not affect the level of TNF-α, IFN-γ, IL-2, IL-4 and IL-5 in serum of mice. These studies indicate that LR water extract induces macrophage activation and suggest the possible use of LR water extract in macrophage–based immunotherapies.
Abstract
In the recently, increased concern has been focused on the pharmacology and clinical utility of herbal extracts and derivatives as a drug or adjunct to chemotherapy and immunotherapy. Here we investigated the effect of the water extract of Loranthi Ramulus (LR) in production of inflammatory mediators and expression of toll-like receptor (TLR)-4, CD14 from peritoneal macrophage. We assayed the effect of LR water extract in cell proliferation in vitro and Th1/Th2 cytokine level in vivo. In peritoneal macrophages, water extract of LR water extract increased the production of Nitric oxide (NO) and TNF-α. Also, LR water extract increased Con A-induced cell proliferation and IgG1, IgG2a level in serum. However, i.p. injection of water extract of LR water extract did not affect the level of TNF-α, IFN-γ, IL-2, IL-4 and IL-5 in serum of mice. These studies indicate that LR water extract induces macrophage activation and suggest the possible use of LR water extract in macrophage–based immunotherapies.
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