• 제목, 요약, 키워드: anti-tumor

검색결과 2,257건 처리시간 0.053초

국내 항암약침의 최신연구경향

  • 유화승;방선휘;조종관
    • 대한약침학회지
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    • v.9 no.3
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    • pp.79-88
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    • 2006
  • Objectives : This systematic review summarizes the existing evidence on anti-tumor herbal acupuncture in South Korea. Methods : Literature searches were conducted in four databases. All studies of anti-tumor herbal acupuncture which has been published in South Korea until May, 2006 were included. Data were extracted according to pre-defined criteria by two independent reviewers. Results : We found 73 papers related to anti-tumor herbal acupuncture in South Korea. Seventy of seventy-three papers are trial research and only three papers are clinical research. Herb materials which were used in those papers are Bee-venom, Wild-ginseng, Ginseng, Houttuynia cordata Thunb, Lonicerae Flos, Carthami Tinctorii Juglans sinensis, Euphorbiae Radix, Ecliptae Herba, Crotonis Semen, Juglans sinensis, Armeniaceae Amarum, so on. From those papers, Anti-tumor herbal acupunctures are effective to tumor cell line and tumor in vivo. Clinical research papers reported that Anti-tumor herbal acupunctures are useful to improve cancer related symptoms and quality of life(QOL) of cancer patients. Conclusions : From the above results, we make sure of that anti-tumor herbal acupuncture is useful therapeutics for cancer patients. If we conceive complex-herb materials and carry out more advanced research, Anti-tumor Herbal Acupuncture is one of those major therapeutics to improve clinical symptoms and quality of life(QOL) of cancer patients.

Anti-tumor and immuno-stimulating activity of fungal polysaccharides

  • Lee, Jae-Hoon
    • 미생물과산업
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    • v.20 no.3
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    • pp.14-21
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    • 1994
  • Low molecular weight molecules and high molecular weight substances were found to have anti-tumor and immuno-modulating activity. Previously polysaccharides have been received much attention because of adhesives, food additives or animal foods (Whistler et al., 1976). In effort of developing new anti-tumor substances with low toxicity, numerous polysaccharides from yeast, algae, bacteria, higher plants and especially fungi have been investigated for anti-tumor and immuno-modulating activities. Thus the high molecular weight molecule was reported to have anti-tumor activity through host mediated immunity. In this brief article, attention will be paid to polysaccharides which is especially fungal origin.

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Application of Apoptogenic Pretreatment to Enhance Anti-tumor Immunity of Granulocyte-Macrophage Colony Stimulating Factor (GM-CSF)-secreting CT26 Tumor Cells

  • Jun, Do-Youn;Jaffee, Elizabeth M;Kim, Young-Ho
    • IMMUNE NETWORK
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    • v.5 no.2
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    • pp.110-116
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    • 2005
  • Background: As an attempt to develop a strategy to improve the protective immune response to GM-CSF-secreting CT26 (GM-CSF/CT26) tumor vaccine, we have investigated whether the apoptogenic treatment of GM-CSF/CT26 prior to vaccination enhances the induction of anti-tumor immune response in mouse model. Methods: A carcinogeninduced mouse colorectal tumor, CT26 was transfected with GM-CSF gene using a retroviral vector to generate GM-CSF-secreting CT26 (CT26/GM-CSF). The CT26/GM-CSF was treated with ${\gamma}$-irradiation or mitomycin C to induce apoptosis and vaccinated into BALB/c mice. After 7 days, the mice were injected with a lethal dose of challenge live CT26 cells to examine the protective effect of tumor vaccination in vivo. Results: Although both apoptotic and necrotic CT26/GM-CSF vaccines were able to enhance anti-tumor immune response, apoptotic CT26/GM-CSF induced by pretreatment with ${\gamma}$-irradiation (50,000 rads) was the most potent in generating the anti-tumor immunity, and thus 100% of mice vaccinated with the apoptotic cells remained tumor free for more than 60 days after tumor challenge. Conclusion: Apoptogenic pretreatment of GM-CSF-secreting CT26 tumor vaccine by ${\gamma}$-irradiation (50,000 rads) resulted in a significant enhancement in inducing the protective anti-tumor immunity. A rapid induction of apoptosis of CT26/GM-CSF tumor vaccine at the vaccine site might be critical for the enhancement in anti-tumor immune response to tumor vaccine.

순기화중탕과 Doxorubicin의 병용이 MKN-45의 항암효과에 미치는 영향 (The Anti-tumor Effect of Soonkiwhajungtang with Doxorubicin in MKN-45 Conclusion)

  • 신민규;변준석
    • 대한한의학회지
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    • v.25 no.2
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    • pp.98-109
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    • 2004
  • Objectives : To evaluate the anti-tumor and synergic effect of Soonkiwhajungtang with doxorubicin. Methods : The inhibitory concentration (IC), $IC_{50}$ and $IC_{90}$ of single use of doxorubicin and Soonkiwhajungtang with their concomitant treatment against MKN-45 (human stomach carcinoma) cell line were observed using MTT (microculture tetrazolium test) assay. In addition, their anti-tumor effects were also observed in xenograft nude mice models against the MKN-45 cell line. Results : Soonkiwhajungtang has only minimal direct anti-tumor effect against MKN-45 cell line but it reduced general depressed signs induced by implantation of the tumor cell lines and increased the total WBC and lymphocyte numbers. Conclusions : It is considered or expected that Soonkiwhajungtang extract reduces the critical toxicity of doxorubicin and has favorable synergic anti-tumor effect when administered concomitantly with doxorubicin.

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보중익기합대칠기탕과 Doxorubicin의 병용이 Colon-26의 항암효과에 미치는 영향 (The Anti-tumor Effect of Bojungikkeehapdaechilkitang with Doxorubicin in Colon-26)

  • 이윤희;변준석
    • 대한한의학회지
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    • v.25 no.2
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    • pp.9-21
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    • 2004
  • Objectives : To evaluate the anti-tumor and synergic effect of Bojungikkeehapdaechilki-tang (BJDC) with doxorubicin. Methods : The inhibitory concentration (IC), $IC_{50}{\;}and{\;}IC_{90}$ of single use of doxorubicin and BIDC with their concomitant treatment against Colon-26 (murine rectum carcinoma) cell line were observed using MTT (microculture tetrazolium test) assay. In addition, their anti-tumor effects were also observed in xenograft nude mice models against Colon-26 cell line. Results : BJDC had only minimal direct anti-tumor effect against Colon-26 cell line but it reduced general depressed signs induced by implantation of the tumor cell lines and increased the total WBC and lymphocyte numbers. Conclusions : It is considered or expected that BJDC extract is reducing the critical toxicity of doxorubicin and has favorable synergic anti-tumor effect when administered conconitently with doxorubicin.

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Anti-tumor Activity of Acanthospermum hispidum DC on Dalton Ascites Lymphoma in Mice

  • Rajendran, N.N.;Deepa, N.
    • Natural Product Sciences
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    • v.13 no.3
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    • pp.234-240
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    • 2007
  • The present study investigated the anti-tumor activity of ethyl acetate extract of Acanthospermum hispidum DC against daltons ascites lymphoma in mice. The extract was prepared by cold maceration with ethyl acetate for 3 - 7 days and evaporated in vacuum to dry. (Yield : 14.2 g, 1.42% w/w). The extract was fractionated by column chromatography by using gradient elution technique and the diterpenes fraction isolated (0.649 g). Both extract and the fraction were administered as oral suspension with tween 20 in water to tumor bearing mice (DAL) and changes in dead cell count, histopathology of tumor cells, hematological parameters and median survival time (MST) were examined and compared with that of tumor control or 5-Fluorouracil (5-FU). The results indicate that both ethyl acetate extract and fraction possess anti-tumor activity. The study suggests that Acanthospermum hispidum DC seems promising as a source of diterpenes for potential anti-tumor activity.

천룡(天龍)의 항암효과에 대한 고찰 (Study on the Anti-tumor Effect of Gekko)

  • 안태규;손창규;정태영;유화승;조정효
    • 대한암한의학회지
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    • v.14 no.1
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    • pp.75-84
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    • 2009
  • Gekko has been used for several diseases including cancer in Oriental medicine and fork herbalogy. Nevertheless, its origin as herbal medicine and its efficacy and mechanism as anti-tumor drug have not yet been thoroughly reported in Korea. This study aimed to investigate anti-tumor effect of Gekko through selected articles from cqvip database in China. In vitro and In vivo, Gekko could obviously inhibit tumor growth, induce tumor cells apoptosis, reduce micro-vessel density in tumor tissue through down regulating VEGF & bFGF protein expression, promote cytotoxicity of lymphocyte. Gekko could improve survival rate, relive clinical symptoms, improve quality of life, and relieve anti-tumor treatment reaction, suggesting that Gekko might be a effective anti-tumor drug.

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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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    • v.31 no.4
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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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Anti-tumor effect of Euphorbia hirta on Ehrlich's ascites carcinoma in mice

  • Kumarappan, CT;Sunderi, S Karpagam Kumara;Jaswanth, A;Lakshmi, S Mohana;Mandal, Subhash C
    • Advances in Traditional Medicine
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    • v.7 no.2
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    • pp.133-140
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    • 2007
  • Anti-tumor activity of Euphorbia hirta (50 mg/kg and 100 mg/kg) has been evaluated against Ehrlich's ascites carcinoma (EAC) in Swiss albino mice. Intraperitoneal (i.p) administration of Euphorbia hirta was effective in reducing solid tumor mass development induced by EAC cells. It exhibited significant anti-tumor activity in mice, when used at the dose of 100 mg/kg/day i.p., for 14days. The administration of Euphorbia hirta (100 mg/kg/day i.p.) resulted in an increase (P<0.001) of the life span (59.9%) of ascites tumor bearing mice as compared to the control group. After 14 days, on developed tumor masses, Euphorbia hirta administration brought about significant reduction in tumor volume and it reverse the changes in the hematological parameters, responding to tumor inoculation. The results are indicative of the anti-tumor activity of Euphorbia hirta against EAC induced tumor in a dose dependent manner.

Streptomyces sp.409 에서 분리한 항암활성 물질의 특징 (The Characteristics of Antitumor Agent Isolated from Streptomyces sp.409)

  • 장영수
    • 약학회지
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    • v.44 no.5
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    • pp.478-487
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    • 2000
  • This study was carried out to find new anti-tumor agent producing microbe and to characterize the anti-tumor agent produced from the microbe. Purified compound that has a high cytotoxicity against tumor cell-lines could be obtained from the broth culture filtrates of Streptomyces sp.409 strain isolated from soil in Korea. The in vitro cytotoxicity the in vivo evaluation of acute toxicity the safety assessment of the anti-tumor compounds and the taxonomic characteristics of the anti-tumor agent were measured. The antitumor compound 1 and 2 were obtained from the broth culture filtrates of Streptomyces sp.409 strain. The cytotoxicity of the compound 1 against tumor cell-line P388D$_1$ showed almost 4.5 times higher than that of adriamycin. However in the cytotoxicity against normal cell line Vero E6, adriamycin showed adversely 4 times higher than the compound 1 ($IC_{50}$/ value: 228.7 $\mu\textrm{g}$/$m\ell$). In comparison study with compound 1 and compound 2 in the in vitro cytotoxin productivity against tumor cell lines, $IC_{50}$/ value of the compound 1 was 0.25 $\mu\textrm{g}$/$m\ell$ in tumor cell line P388D$_1$and 0.53 $\mu\textrm{g}$/$m\ell$ in tumor cell-line L1210, and that of the compound 2 was 7.18 $\mu\textrm{g}$/$m\ell$ and 35.71 $\mu\textrm{g}$/$m\ell$, respectively; LD$_{50}$ value of the compound 1 in the in vivo acute toxicity in mice was 22.62 $\mu\textrm{g}$/kg body weight. These results suggest that compound 1 purified from Streptomyces sp. 409 has anti-tumor activity and will be developed as an anti-tumor drug.g.

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