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Study on the immunomodulation effect of Isodon japonicus extract via splenocyte function and NK anti-tumor activity.


ABSTRACT: Here we investigated the potential immune-enhancing activity of Isodon japonicus on murine splenocyte and natural-killer (NK) cells in vitro. The ethanol extract of I. japonicus significantly enhanced the proliferation of splenocyte and induced the significant enhancement of NK cells' activity against tumor cells (YAC-1). In addition, I. japonicus increased the production of interferon (IFN)-? and tumor necrosis factor (TNF)-?, suggesting that the increase in NK cell cytotoxicity could be due to the enhancement of the NK cell production of both cytokines. Taken together, I. japonicus extract inhibited the growth of human leukemia cells (K562) by 74%. Our observation indicated that the anti-tumor effects of I. japonicus may be attributed to its ability to serve as a stimulant of NK anti-tumor activity. In addition, our results support the development of functional food studies on I. japonicus.

SUBMITTER: Hwang YJ 

PROVIDER: S-EPMC3344252 | biostudies-literature | 2012

REPOSITORIES: biostudies-literature

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Study on the immunomodulation effect of Isodon japonicus extract via splenocyte function and NK anti-tumor activity.

Hwang Yu-Jin YJ   Kim Jaehyun J   Park Dong-Sik DS   Hwang Kyung-A KA  

International journal of molecular sciences 20120418 4


Here we investigated the potential immune-enhancing activity of Isodon japonicus on murine splenocyte and natural-killer (NK) cells in vitro. The ethanol extract of I. japonicus significantly enhanced the proliferation of splenocyte and induced the significant enhancement of NK cells' activity against tumor cells (YAC-1). In addition, I. japonicus increased the production of interferon (IFN)-γ and tumor necrosis factor (TNF)-α, suggesting that the increase in NK cell cytotoxicity could be due to  ...[more]

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