• Journal of Ginseng Research
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• 제13권1호
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• pp.24-29
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• 1989

본 실험에서는 대식세포에 의한 K562 종양세포의 치사에 미치는 인삼 분획물들의 영향을 알아보기 위하여 실험한 결과 다음과 같은 결론을 얻었다. 1. LPS만을 처리하여 주어 종양세포의 치사 활성을 유도한 대식세포보다도 LPS 와 saponin을 복합처리하여준 대식세포가 K562 종양세포에 대하여 더 높은 종양 치사 활성을 나타내었다. 이러한 결과는 인삼 분획물 즉, total, diol, triol saponin 모두 같은 양상을 나타내었다. 2. 대식세포없이 배양엑에 인삼 saponin 만을 처리하여 주었을 경우, 인삼 saponin 이 K562 종양세포에 대한 치사작용을 나타내지 않았다. 3. 이러한 결과로 인삼 saponin이 대식세포를 통하여 K562 세포 치사 활성을 증가시킨다는 것을 확인하였다.

• Journal of Ginseng Research
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• 제15권2호
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• pp.99-105
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• 1991

This experiment was performed to investigate the effects of ginseng saponin fraction and cyclophosphamide (CY) on the tumor development, the antitumor effect and the tumoricidal activity of mouse macrophage. When mice were treated with saponin or CY following inoculation with Sarcoma 180, tumor development was inhibited and survival ratio increased, and a combination of both treatments further inhibited the tumor development. Tumoricidal activity of macrophage was effectively increased at 10-7% concentration of CY and it was further increased when macrophage was cotreated with saponin and CY. Tumoricidal activity of macrophage was greatest at the third day after inoculating tumor cell. Both saponin and CY increased the chemiluminescence of macrophage, but CY had no effect on releasing TNF, unlike saponin.

• Journal of Ginseng Research
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• 제14권3호
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• pp.364-372
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• 1990

This experiment was performed to investigate the effects of ginseng saponin fractions (total saponin, triol saponin. diol saponin) and lipopolysacrharide (LPS) on the tllmoricidal activity of macrophage. The ginseng saponin fractions had little effect on the tumoricidal activity of macrophage (less than 10%). When the ginseng saponin fractions were treated with LPS, the effects of tumoricidal activation of macrophage increased a relatively high percent, and the total saponin and triol saponin (20-35%) were ulore effectual than diol saponin (15-25%). The effects of ginseng saponin and LPS on the tumoricidal activity of macrophage were mediated by the induction of macrophage-release factor(5) which has(have) the capacity of tumor cell killing. And the quantity of the (actors) was(were) increased by the contact of macrophage with tumor cell.

• Preventive Nutrition and Food Science
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• 제13권1호
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• pp.1-6
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• 2008

Di-D-fructose-2,6':6,2'-dianhydride (DFA-IV) is a disaccharide consisting of two fructose residues that are prepared from levan by levan fructotransferase. Levan is a homopolysaccharide composed of D-fructofuranosyl residues joined by $\beta$-(2,6) and $\beta$-(2,1) linkages. We compared the immunomodulatory effects of levan with DFA-IV. Tumoricidal activity, phagocytosis and nitric oxide (NO) production were examined in levan- and DFA-IV-treated RAW264.7 cells. The NO production, tumoricidal and phagocytic activities were significantly increased in both treated cells. The results indicate that levan has significantly greater effects on tumoricidal activity than DFA-IV at low concentrations (1 ${\mu}g/mL$) and its effect on NO production shows a similar pattern. These results suggest that tumoricidal activity induced by both samples is mediated by NO production.

• Journal of Ginseng Research
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• 제32권1호
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• pp.67-72
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• 2008

for 4 h, tumoricidal activity was significantly increased. However, NSRG had effects on tumoricidal activity of macrophages at low concentration (1 ug/ml), which was not related to the production of nitric oxide. The mitogen response of lymphocytes to LPS and ConA in the spleen did not show significant differences between the control and NSRG-treated cells, whereas LPS-induced blastogenesis was slightly increased at 100 ${\mu}g/ml$ (p < 0.05). These results suggest that NSRG has differential effects on innate immune response and could be useful as immunotherapy for cancer treatment.

• Biomolecules & Therapeutics
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• 제10권4호
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• pp.224-229
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• 2002

Triazine herbicide has been reported to directly suppress the immune response. In the present study, we examined various functions of murine peritoneal macrophages that were isolated and stimulated with LPS after simazine (300 and 600 mg/kg body weight), a triazine herbicide, was administered every day for 4 weeks. Simazine decreased the capacity of phagocytosis, compared to those of carboxymethylcellulose (CMC)-treated control group. In addition, the production of NO and TNF-$\alpha$ was decrcased in macrophages of simazinetreated mice. However, the production of hydrogen peroxide ($H_{2}O_{2}$) was not altered. In vitro tumoricidal activity of in vivo simazine-treated macrophages was reduced against target cell. B 16 melanoma. Taken together, these results suggested that simazine might have the immunosuppressive effect on macrophages after in vivo exposure, which was related to the reduction of tumoricidal activity.

• Preventive Nutrition and Food Science
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• 제11권4호
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• pp.268-272
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• 2006

Cimicifugae Rhizoma (CR) belongs to the Ranunculaceae family, which has been traditionally used to treat climacteric complaints, antipyretics and diaphoresis as an alternative medicine for estrogen hormone replacement therapy with estrogens. Recently, it has been reported that different extract fractions of CR have various effects such as anti-allergic, anti-inflammatory and anti-proliferative activities. The current study investigated the immunomodulatory effects of Cimicifugae Rhizoma water extracts (CRE) in the macrophage-like cell line, Raw 264.7. Our results showed that CRE ($1\sim50\;{\mu}g/mL$) stimulated tumoricidal activity and NO production, whereas phagocytic activity was inhibited at the same concentrations. Additionally, iNOS mRNA expression was significantly increased in Raw 264.7 exposed to CRE as demonstrated by RT-PCR. These results indicate that the tumoricidal activity induced by CRE may be mediated by the production of NO and these activities may be useful for the treatment of diseases such as cancer.

• 한국동물학회지
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• 제34권2호
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• pp.173-180
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• 1991

생쥐 대식세포의 감염균 치사활성과 종양 치사활성에 미치는 Polyamine 생합성 억제의 영향을 알아보기 위하여 ornithine의 억제제인 $\alpha$ -Difluoromethylomithine (DFMO)과 S-adenosylmethionine decarboxylase의 억제제인 methylhlyoxal bis(guanylhydrazone)(MGBG)을 in vitro 또는 in vivo에서 처리하였다. 대시세포의 감염균 치사활성의 지표로서 화학발광(chemiluminescence)과 nitroblue tetrazolium(NBT)의 환원정도를 측정한 결과, 염증유발물질인 thioglycollate(TG)와 세균이 세포내 독소인 liopopolysac- charide(LPS)를 주사하였거나 BCG를 감염시킨 후 측정된 화학 발광의 수준은 TG, LPS, BCG의 순으로 증가하였다. 그러나 이런 화학발생의 수준은 DFMO를 경구투여 하였을 때 전체적으로 감소하였고, 이 세포에 의한 NBT 환원정도 또한 DFMO와 MGBG의 in vitro 처리에 의하여 감소되었다. 한편 BDG로 활성화시킨 대식세포의 종양 괴사인자분비에 의한 종양치사 및 종양세포와의 부착에 의한 직접적 치사정도를 측정한 결과, polyamine생합성억제제의 처리농도를 증가시킴에 따라 그 정도는 감소하였지만, 외부에서 polyamine인 putrescene을 처리 하였을 때 회복되었다. 위의 결과로부터 대식세포내의 polyamine 생합성은 이 세포의 최적 활성화와 과정에 필요한 것으로 생각된다.

• 동아시아식생활학회지
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• 제15권5
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• pp.542-548
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• 2005

In recent years, propolis has attracted much attention as an useful substance in medicine and functional food, even if it is known as a natural remedy in folk medicine since ancient times. propolis was registered as natural food since 1995 on Korean Food Act by Korean Food and Drug Administration(KFDA). The present study demonstrated the optimization of isolation of crude propolis by ethanol, and tumoricidal effect of pro polis. The optimal concentration of ethanol to separate a high quantity of propolis was $60\%$. The cytotoxic effect of ethanol extracted propolis against various cancer cell lines including murine lymphoma (Sarcoma-180), murine T-lymphoma (YAC-1), human breast carcinoma (MCF-7), human gastric carcinoma (KATOIII) and human hepatocellular carcinoma (Hep3B) and human lung adenocarcinoma (A-549) was observed using SRB and MIT assay. In order to investigate the curative activity by oral administration of propolis on tumor, ICR mice was subcutaneously implanted Sarcoma 180. In 300mg/kg and 600mg/kg propolis administered group, development of implanted tumors was inhibited by $40.9\%\;and\;67.9\%$ at 16th day, respectively. In the same dose of propolis administered group, development of implanted tumors was inhibited more strongly with dose dependent manner. Therefore, these data suggested propolis may show tumoricidal effects. In conclusion, these results indicate that propolis, one of the few natural remedies, can be used as functional food with tumoricidal effects.

• 한국동물학회:학술대회논문집
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• 한국동물학회 2000년도 한국생물과학협회 학술발표대회
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• pp.280.1-280
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• 2000

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