• 제목/요약/키워드: anti-tumor effects

검색결과 1,462건 처리시간 0.049초

생감자의 열탕 추출물을 첨가한 감자 김치의 이화학적 특성 및 In Vivo에서의 항암 효과 (Physico-chemical Properties and In Vivo Anti-cancer Effects of Potato Kimchi Prepared by adding Hot Water Extracts of Potato)

  • 장상근;김희주
    • 동아시아식생활학회지
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    • 제18권3호
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    • pp.302-310
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    • 2008
  • In this study, potato kimchi was prepared by applying heat to raw potatoes, and then the physico-chemical properties and anti-cancer effects of the kimchi were analyzed. The texture results indicated the potato kimchi had very good hardness and springiness attributes. During th late storage period, total vitamin C content of the kimchi slowly increased. In addition, the potato kimchi had non-volatile organic acid changes that promoted early aging; however, after the complete aging period, it was comparatively similar to other types of kimchi. Using the methanol extracts of various kimchi samples, the potato kimchi(solid 100%) showed the highest anti-carcinogenic effects in terms of anti-tumor activity in tumor bearing Balb/c mice with sarcoma-180 cells. In addition, the effects of the methanol extracts on hepatic glutathione S-transferase content were $289.76\;{\mu}mol/mg$ protein/min, $250.97\;{\mu}mol/mg$ protein/min, $251.20\;{\mu}mol/mg$ protein/min, $219.53\;{\mu}mol/mg$ protein/min, $183.79\;{\mu}mol/mg$ protein/min, for control kimchi, mul kimchi, and two potato kimchis [(solid 100%) and(solid 60%+kimchi juice 40%)], respectively. The in vivo anti-cancer effects of the potato kimchi were investigated using AGS human gastric adenocarcionoma cells and HT-29 human colon adenocarcionoma cells. Overall, an MTT assay revealed that the methanol extract of the potato kimchi showed the highest anti-carcinogenic effects.

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CEA 발현 마우스 종양모델에서 Cyclophosphamide와 수지상세포 백신의 병합치료에 의한 상승적인 항종양 효과 (Synergistic Anti-Tumor Effect by the Combination of Cyclophosphamide and Dendritic Cell Vaccination in Murine Tumor Model that CEA Expressing)

  • 박미영
    • 대한임상검사과학회지
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    • 제54권1호
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    • pp.38-48
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    • 2022
  • Carcinoembryonic antigen (CEA)는 다양한 종양에서 발현되는 자가 항원으로 면역치료에서 강력한 표지 인자이며 면역치료를 위한 표적 종양항원으로 널리 알려져 있다. 그러나 수지상세포 단독 치료는 동물모델에서 종양의 발생을 억제하는 데 효과가 있지만 이미 확립된 종양을 제거하는 데는 한계가 있다. 본 연구에서는 항종양 면역 효과를 증가시키기 위하여 화학치료제인 cyclophosphamide (CYP)와 종양 특이 면역치료법인 수지상세포 백신의 병합치료 효과를 CEA를 발현하는 마우스 종양 모델에서 검증하였다. 종양세포 주입 후 2일 소종양군과 10일 대종양군에서 CYP의 항종양 효과를 비교한 결과, 소종양군에서는 100 mg/kg에서 뚜렷한 종양 성장의 억제 효과가 관찰되었지만 대종양군에서는 약한 억제 효과가 관찰되어 본 연구에서는 대종양군을 병합치료의 적합한 모델로 설정하였다. CYP 와 수지상세포 백신의 병합치료(화학면역치료) 시 종양항원 특이 면역반응이 증가되었을 뿐만 아니라 상승적인 항종양 효과가 나타났다. 또한 CYP 치료에서 나타나는 체중 감소 및 조절 T세포와 골수유래 억제세포의 증가에 의한 면역억제는 화학면역치료에 의해 개선되었다. 항원 특이 면역치료를 병합한 화학면역치료가 화학치료의 부작용을 감소시키고 항종양 효과를 증가시킬 수 있는 치료 전략이 될 수 있을 것이다.

The Two Faces of IL-18 in Tumor Immunology

  • Cho, Dae-Ho
    • 대한약학회:학술대회논문집
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    • 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.1
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    • pp.80-81
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    • 2003
  • IL-18 has been found to have multiple effects upon various cells involved in tumor immunology. Here, we discuss opposite effects of IL-18 in tumor immunology. IL-18 has been shown that it has significant anti-tumor effects, which are mediated by T cells and NK cells, in a manner similar to IL-12. First, we investigated the evaluation of the effects of the systemic administration of IL-18 in combination with B7-1 (CD80) against murine B16 melanoma in vivo. (omitted)

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가미자도환(加味慈桃丸)의 항암(抗癌) 및 면역증강효과(免疫增强效果)에 관한 부험적(實驗的) 연구(硏究) (Experimental Studies on the Anti-tumor and the Immunomodulatory Effects of Jiaweicitaowan(加未慈桃丸))

  • 전영수;심범상;최승훈;안규석
    • 대한한방종양학회지
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    • 제8권1호
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    • pp.103-125
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    • 2002
  • This experimental study was carried out to evaluate the anti-tumor and the immunomodulatory effects of Jiaweicitaowan(加未慈桃丸) against cancer. The in vitro anti-tumor effects were evaluated by MTT assay. The cytotoxicity, extension of survival days, the effect of inhibition solid tumor which was induced sarcoma 180, and the changes of body weight were evaluated for in vivo effects of anti-tumor. To evaluate the immunomodulatory effects of Jiawei- citaowan(加未慈桃丸), delayed type hypersensitivity, hemagglutinin, hemolysin titers for humoral immune response, rosette forming cells for cell-mediated immune response, natural killer cell activity, proliferation of lymphocyte, productivty of Interleukin-2, and carbon clearance were measured with methotrexate treated mice. The results were as follows; 1. In the case of existence ability of tumor cell, IC50 had an anti-tumor ativity resulted 2.52mg/ml to SNU-C4. 0.41mg/ml to SNU-396, resulted to 0.09mg/mlSNU-1. 2. The groups of Jiaweicitaowan(加未慈桃丸) 10mg/ml, 20mg/kg had no body weight loss. reduction in intake of water and feed, so these had no toxicity. 3. In the case of the effect of extention of existence. the group of 20mg/kg Jiaweicitaowan(加未慈桃丸) extract treated group was showed 250% in ILS. 4. The effect of inhibition solid tumor was significantly decreased in both 10mg/kg, 20mg/kg of Jiaweicitaowan(加未慈桃丸) extract treated groups as compared with control group S. The groups of 10mg/kg, 20mg/kg Jiaweicitaowan(加未慈桃丸) had significant effect of body weight change compared to control group. 6. Delayed type hypersensitivity was not significant in both Jiaweicitaowan(加未慈桃丸) extract treated groups as compared with control group. 7. Hemagglutinin and Hemolysin titers were significantly increased by dose-dependent. so these results showed that the humoral immume respose was activated. 8. For the effect of rosette formimg cells was not significant in hoth Jiaweicitaowan(加未慈桃丸) extract treated groups as compared with control group. 9. Natural killer cell activity was significantly increased in both Jiaweicitaowan(加未慈桃丸) extract treated groups as compared with control group in the ratio of 100: 1, 50: 1 of effector and target cells, but in the ratio of 10:1, the Jiaweicitaowan(加未慈桃丸) extract treated groups were not significant. 10. The proliferation of lymphocyte and productivty of Interleukin-2 were significantly increased by dose-dependent in both 10mg/ kg, 20mg/ kg of Jiaweicitaowan(加未慈桃丸) extract treated groups as compared with control group. 11. In the phagocytic effect, the 20mg/kg of Jiaweicitaowan(加未慈桃丸) extract treated group showed the increasing effect with significance as compared with control group. According to the results, we can suggest that Jiaweicitaowan(加未慈桃丸) has the antitumor and the immunomodulatory effects.

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Anti-inflammatory and Anticancer Activities of Ethanol Extract of Pendulous Monkshood Root in vitro

  • Huang, Xian-Ju;Ren, Wei;Li, Jun;Chen, Lv-Yi;Mei, Zhi-Nan
    • Asian Pacific Journal of Cancer Prevention
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    • 제14권6호
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    • pp.3569-3573
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    • 2013
  • Aim: Pendulous monkshood root is traditionally used for the treatment of several inflammatory pathologies such as rheumatisms, wounds, pain and tumors in China. In this study, the anti-inflammatory and anticancer activities and the mechanism of crude ethanol extract of pendulous monkshood root (EPMR) were evaluated and investigated in vitro. Materials and Methods: The cytotoxic effects of EPMR on different tumor cell lines were determined by the MTT method. Cell apoptosis and cell nucleus morphology were assessed by Hoechst 33258 staining. Moreover, nitric oxide (NO) levels and intracellular oxidative stress in peritoneal macrophages were determined to further elucidate mechanisms of action. Results: The data showed that EPMR could produce significant dose-dependent toxicity on three kinds of tumor cells. Furthermore, EPMR displayed obvious anti-inflammatory effects on LPS-induced mouse peritoneal macrophages at the dosage of 4 - 200 ${\mu}g/mL$. The results demonstrated the therapeutic potential of Pendulous Monkshood Root on cancer and inflammatory diseases. Conclusion: Our results indicate that EPMR has anti-inflammatory and anticancer properties, suggesting that pendulous monkshood root may be a useful anti-tumor and anti-inflammatory reagent in the clinic.

해조류 중의 anti-tumor initiator 및 promoter의 해석-3 : 곰피 추출물중의 발암 promotion억제 인자 (Elucidation of Anti-tumor Initiator and Promoter Derived from Seaweed-3 : Anti-tumor Promoters of Ecklonia stolonifera Extracts)

  • 박영범;김인수;유승재;안종관;이태기;박덕천;김선봉
    • 한국수산과학회지
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    • 제31권4호
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    • pp.587-593
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    • 1998
  • 갈조류중의 발암 promotion 억제인자를 밝히기 위하여 곰피, 미역 및 다시마의 용매추출물을 이용하여 발암 promotion 억제효과를 조사한 결과, 곰피. 미역 및 다시마의 수용성 추출물을 제외한 유기용매 분획물에서 우수한 억제효과를 나타내었다. 이 중에서 억제효과가 강한 곰피를 이용하여 발암 promotion 억제인자를 살펴본 결과, 곰피중의 bromophenol, phloroglucinol 등의 phenol 을 비롯하여 chlorophyll 및 carotenoid 화합물에서 억제 효과가 높게 나타났다. 곰피의 chlorophyll a 및 pheophorbide a에서 5 $\mu$M 첨가시 $77.4\%$$66.6\%$의 억제효과가 나타났으며, 곰피의 carotenoid 화물 중에서는 lutein, $\alpha$-cryptoxanthin 및 $\beta$-carotene이 주요 억제인자로 밝혀졌다. Lutein 및 $\alpha$-cryptoxanthin 의 발암 promotion 억제효과는 20$\mu$g 첨가에 의해 각각 $76.9\%$$84.4\%$로 우수하였고, 세포 생잔율도 높게 나타났다.

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항암약침의 최신경향에 대한 고찰 (A Study on recent tendency of anti-tumor herbal acupuncture)

  • 이용연;조정효;이연월;손창규;조종관;황규정;유화승
    • 대한약침학회지
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    • 제4권3호
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    • pp.23-37
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    • 2001
  • Objective: The purpose of this study is to develop and activate anti-tumor herbal acupuncture for cancer patients in South Korea. Methods: We investigated some literatures on anti-tumor herbal acupuncture which is used in South Korea and China, and made diagrams. Results: The results are summarized as follows. Anti-tumor herbal acupuncture is one of the traditional oriental medical method which is effective for cancer patients. In domestic studies, most of herb materials are belong to action of cooling&detoxification(25.0%) and strengthening body resistance(46.4%) which are proved to have effects of anti-tumor, immune activation and preventing tumor. In China, point injection therapy are used for improving symptoms of cancer patients and hea1ing tumor. Also herbal intravenous injection is used for combination of chinese traditional and western cancer therapy and treating cancer patients variously. Conclusions: From the above results. it is expected that anti-tumor herbal acupuncture is useful to improve clinical symptoms and quality of life(QOL) of cancer patients. Also we must develop new progressive methods of point injection and herbal intravenous injection for treating cancer patients, and advance clinical studies and trials.

Anti-tumor Effects of Penfluridol through Dysregulation of Cholesterol Homeostasis

  • Wu, Lu;Liu, Yan-Yang;Li, Zhi-Xi;Zhao, Qian;Wang, Xia;Yu, Yang;Wang, Yu-Yi;Wang, Yi-Qin;Luo, Feng
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권1호
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    • pp.489-494
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    • 2014
  • Background: Psychiatric patients appear to be at lower risk of cancer. Some antipsychotic drugs might have inhibitory effects on tumor growth, including penfluridol, a strong agent. To test this, we conducted a study to determine whether penfluridol exerts cytotoxic effects on tumor cells and, if so, to explore its anti-tumor mechanisms. Methods: Growth inhibition of mouse cancer cell lines by penfluridol was determined using the 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) assay. Cytotoxic activity was determined by clonogenic cell survival and trypan blue assays. Animal tumor models of these cancer cells were established and to evaluate penfluridol for its anti-tumor efficacy in vivo. Unesterified cholesterol in cancer cells was examined by filipin staining. Serum total cholesterol and tumor total cholesterol were detected using the cholesterol oxidase/p-aminophenazone (CHOD-PAP) method. Results: Penfluridol inhibited the proliferation of B16 melanoma (B16/F10), LL/2 lung carcinoma (LL/2), CT26 colon carcinoma (CT26) and 4T1 breast cancer (4T1) cells in vitro. In vivo penfluridol was particularly effective at inhibiting LL/2 lung tumor growth, and obviously prolonged the survival time of mice bearing LL/2 lung tumors implanted subcutaneously. Accumulated unesterified cholesterol was found in all of the cancer cells treated with penfluridol, and this effect was most evident in LL/2, 4T1 and CT26 cells. No significant difference in serum cholesterol levels was found between the normal saline-treated mice and the penfluridol-treated mice. However, a dose-dependent decrease of total cholesterol in tumor tissues was observed in penfluridol-treated mice, which was most evident in B16/F10-, LL/2-, and 4T1-tumor-bearing mice. Conclusion: Our results suggested that penfluridol is not only cytotoxic to cancer cells in vitro but can also inhibit tumor growth in vivo. Dysregulation of cholesterol homeostasis by penfluridol may be involved in its anti-tumor mechanisms.

In Vivo Anti-tumor Activity of 3-Methyl-6-allylthiopyridazine in Nude Mice Xenografted with Hep-G2 Hepatocarcinoma

  • Kwon, Soon-Kyoung;Moon, Aree
    • Biomolecules & Therapeutics
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    • 제13권2호
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    • pp.113-117
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    • 2005
  • Organosulfur compounds have been shown to exert an anti-cancer activity. In an attempt to develop novel chemopreventive and anti-cancer agents for liver cancer, we synthesized allylthiopyridazine derivatives. We have previously shown that allylthiopyridazine derivatives exert inhibitory effects on proliferation, invasion and migration of SK-Hep-1 hepatocarcinoma cells in vitro. The in vivo anti-tumor effect of 3-methvl-6-allylthiopy-ridazine, named as K6, was also reported. In this study, we further investigated the preclinical anti-cancer efficacy of K6 for hepatocarcinoma using nude mice xenografted with Hep-G2 hepatocellular carcinoma cells. K6(20-100 mg/kg, orally administered everyday for 30 days) markedly decreased the tumor volume of Hep-G2 cell-transplanted nude mice as evidenced by ultrasonographic and plethysmogranhic analyses. The inhibitory effect on tumor volume was lower than that exerted by doxorubicin (2 mg/kg), intravenously injected) which was used as a positive control. This study shows that K6 efficiently suppresses xenograft tumor growth, revealing K6 as apotential anti-cancer agent for suppressing in vivo progression of liver cancer. Given that hepatocarcinoma is among the most prevalent and lethal malignancies and there is no effective treatment to date, our study may contribute to the potential drug development for liver cancer.

Biological and Therapeutic Effects of Troxerutin: Molecular Signaling Pathways Come into View

  • Ahmadi, Zahra;Mohammadinejad, Reza;Roomiani, Sahar;Afshar, Elham Ghasemipour;Ashrafizadeh, Milad
    • 대한약침학회지
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    • 제24권1호
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    • pp.1-13
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    • 2021
  • Flavonoids consist a wide range of naturally occurring compounds which are exclusively found in different fruits and vegetables. These medicinal herbs have a number of favourable biological and therapeutic activities such as antioxidant, neuroprotective, renoprotective, anti-inflammatory, anti-diabetic and anti-tumor. Troxerutin, also known as vitamin P4, is a naturally occurring flavonoid which is isolated from tea, coffee and cereal grains as well as vegetables. It has a variety of valuable pharmacological and therapeutic activities including antioxidant, anti-inflammatory, anti-diabetic and anti-tumor. These pharmacological impacts have been demonstrated in in vitro and in vivo studies. Also, clinical trials have revealed the efficacy of troxerutin for management of phlebocholosis and hemorrhoidal diseases. In the present review, we focus on the therapeutic effects and biological activities of troxerutin as well as its molecular signaling pathways.