• Title/Summary/Keyword: Anticancer activity

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Development of Resources for Functional Food and Biological Activity of Lentinus edoes mycelium (표고버섯 균사체의 생리활성과 기능성식품 소재 개발)

  • Kim, Soo-Min;Kim, Eun-Ju
    • The Korea Journal of Herbology
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    • v.26 no.2
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    • pp.25-30
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    • 2011
  • Objectives : This study was carried out to investigate an antioxidant ability, the change of antioxidant ability, antimicrobial activity and anticancer in functional meat ball and sausage prepared from Lentinus edoes mycelium and texturized soy protein. Methods : This experiments was carried out to investigate antioxidant ability(TBARS, DPPH, SOD-like ability), antibacterial activity and anticancer ability using sarcoma 180 extracts from Lentinus edoes mycelium. Result : Anticancer ability of Lentinus edoes mycelium showed a 28% survival rate and 63% of inhibition rate of tumor, which showed $1.30{\pm}0.4g$ of tumor weight. These results revealed an effective Lentinus edoes mycelium resources as anticancer sources. After heating peoducts prepared from Lentinus edoes mycelium, these products doesn't showed difference between after heating and before heating in measuring of SOD-like activity and DPPH. In DPPH experiment, ethanol extracts showed a high DPPH value as 90.85%, but hot water extracts showed 82.14% in DPPH value. Conclusion : In conclusion, it is very useful resources for preparing functional food on the basis of results from antioxidant(TBARS, DPPH, SOD-like ability), antibacterial activity and anticancer ability using sarcoma 180.

Thiolactomide: A New Homocysteine Thiolactone Derivative from Streptomyces sp. with Neuroprotective Activity

  • Jang, Jun-Pil;Kwon, Min Cheol;Nogawa, Toshihiko;Takahashi, Shunji;Osada, Hiroyuki;Ahn, Jong Seog;Ko, Sung-Kyun;Jang, Jae-Hyuk
    • Journal of Microbiology and Biotechnology
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    • v.31 no.12
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    • pp.1667-1671
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    • 2021
  • A new homocysteine thiolactone derivative, thiolactomide (1), was isolated along with a known compound, N-acetyl homocysteine thiolactone (2), from a culture extract of soil-derived Streptomyces sp. RK88-1441. The structures of these compounds were elucidated by detailed NMR and MS spectroscopic analyses with literature study. In addition, biological evaluation studies revealed that compounds 1 and 2 both exert neuroprotective activity against 6-hydroxydopamine (6-OHDA)-mediated neurotoxicity by blocking the generation of hydrogen peroxide in neuroblastoma SH-SY5Y cells.

Antioxidant and Anticancer Activities of Leaves Extracts from Acer tegmentosum

  • Eo, Hyun Ji;Park, Gwang Hun;Kim, Da Som;Kang, Yeongyeong;Park, Youngki
    • Korean Journal of Plant Resources
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    • v.33 no.6
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    • pp.551-557
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    • 2020
  • In this study, we were performed to elucidate the antioxidant and anticancer activity by leaves extracts from Acer tegmentosum (AT-L). In DPPH, ABTS radical scavenging activity, the AT-L revealed the high scavenging activity. Especially, the AT-L measured the highest ABTS radical scavenging activity, which is higher than ascorbic acid. The types of human cancer cells for evaluating the anticancer activity were colorectal cancer (SW480), prostate cancer (PC-3), breast cancer (MCF-7), pancreatic cancer (AsPC-1), lung cancer (A549) and liver cancer (HepG2). Human cancer cell viability was measured using MTT assay. Treatment of the AT-L decreased the cell viability and induced apoptosis in SW480 cells. These results suggest that extracts of the AT-L can be used as supplementary material for developing the natural antioxidant and anticancer drug for human cancer cells.

Anticancer and Antioxidant Activity of Allergen-Removed Extract in Rhus verniciflua Stokes

  • Kim, Myong-Jo;Choi, Won-Cheol;Barshinikov, A. M.;Kobayashi, A.
    • Korean Journal of Medicinal Crop Science
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    • v.10 no.4
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    • pp.288-293
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    • 2002
  • Allergen-removed-extract was produced from Rush verniciflua by two phase methods. Phase one was high temperature treatment of Rush verniciflua tree to get allergen-removed-extract. Phase two was extraction of solution from phase one product using water or organic solvents. The solutions from above method show high antioxidant activity, anticancer activity, and improvement in lung function, but did not contain urushiol family compounds.

Cytotoxicity of the ethanol extracts of mulberry leaves, branches and silkworm feces (상엽, 상지 및 잠분 에탄올 추출물의 품종별 세포독성 효과)

  • 안미영;류강선;김익수;김선여;이희삼
    • Journal of Sericultural and Entomological Science
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    • v.43 no.1
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    • pp.26-28
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    • 2001
  • The cytotoxicity of the ethanol extracts of varietal samples of mulberry leaves and branches and silkworm feces was measured using CT-26 cells originated from murine metastatic colon cancer, using dye uptake assay in order to find potential anticancer agents. Two ethanol extracts (varietal mulberry leaves and mulberry branches) were prepared from 16 varietal mulberries and used as partial extract materials for the activity assay. Among these, the ethanol extracts from Shinkwangppong leaves showed a little anticancer activity, and those from Sugaeppong, Cheongunppong and Gumsulppong branches showed some anticancer activity as well as cytotoxicity. In contrast, ethanol extracts from freeze-dried, the 3rd day of 5th instar feces showed more potent anticancer activity than that of other mulberry leaves, mulberry branches and other 5th silkworm instar larva feces on the basis of high UV absorbance at 665 nm.

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Cholesterol-Lowering Effect and Anticancer Activity of Kimchi and Kimchi Ingredients (김치와 김치재료의 콜레스테롤 저하 및 항암효과)

  • 이재준;정영기
    • Journal of Life Science
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    • v.9 no.6
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    • pp.743-752
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    • 1999
  • The purpose of the paper is to explore the current knowledge on the nutritional evaluation, cholesterol-lowering effect and antitumor activity of kimchi and its ingredients(Korean cabbage, garlic, red pepper powder, ginger and onion). Kimchi contains high contents of nutrients such as vitamins(ascorbic acid, $\beta$-carotene and vitamin B complex), minerals(calcium, potassium, iron and phosphorous), essential amino acids and dietary fiber. Kimch also contains high levels of lactic acid bacteria, allicin, capsaicin, organic acid, phenol compounds, flavonoid and sulfur compounds. The dietary fiber and lactic acid bacteria isolated from kimchi are effective in improving intestinal microflora of human. Isoluble dietary fiber shows anticancer activity, but soluble dietary fiber shows hypocholesterolemic effect. Lactic acid bacteria isolated from kimchi acts as a hypocholesterolemic or anticancer agent. A major ingredient of kimchi is mainly cruciferous and allium family vegetables, which were also reported to prevent cancer and atherosclerosis. It is suggested that kimchi is important not only as one of the traditional fermented Korean food but also as therapeutic agent for carcinogenesis and hypercholesterolemic state.

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Synthesis of Pt(II) Complexes containing Flavin mononucleotide as Leaving Ligand and their Anticancer Activity (Flavin mononucleotide를 탈리기로한 백금 (II) 착체의 합성과 그 항암활성)

  • 권영이;황규자
    • YAKHAK HOEJI
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    • v.43 no.6
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    • pp.762-770
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    • 1999
  • A series of vitamin-containing Pt(II) complexes of the type [Pt (FMN) (L)] (FMN=flavin mononucleotide, L=ethylenediamine, 1,3-propanediamine, 1,4-bu-tanediamine) was synthesizd and characterized by IR, electronic absorption, elemental analysis and FAB=Mass. The coordination sites of FMN to Pt(II) ions were determined to be N(5) and O(6) with resultant chelate ring formation. Theses compounds have much better water solubility (30-35 mg/ml) than cisplatin (1 mg/ml). The anticancer activity of this vitamin-containing Pt(II) series was investigated by MTT assay against mouse and human leukemia cell lines in vitro. Among these compounds, FMN (1,4-butanediamine) Pt(II) having seven-membered ring structure as amine ligand showed moderate anticancer activity.

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Enhancing Activity of Anticancer Drugs in Multidrug Resistant Tumors by Modulating P-Glycoprotein through Dietary Nutraceuticals

  • Khan, Muhammad;Maryam, Amara;Mehmood, Tahir;Zhang, Yaofang;Ma, Tonghui
    • Asian Pacific Journal of Cancer Prevention
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    • v.16 no.16
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    • pp.6831-6839
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    • 2015
  • Multidrug resistance is a principal mechanism by which tumors become resistant to structurally and functionally unrelated anticancer drugs. Resistance to chemotherapy has been correlated with overexpression of p-glycoprotein (p-gp), a member of the ATP-binding cassette (ABC) superfamily of membrane transporters. P-gp mediates resistance to a broad-spectrum of anticancer drugs including doxorubicin, taxol, and vinca alkaloids by actively expelling the drugs from cells. Use of specific inhibitors/blocker of p-gp in combination with clinically important anticancer drugs has emerged as a new paradigm for overcoming multidrug resistance. The aim of this paper is to review p-gp regulation by dietary nutraceuticals and to correlate this dietary nutraceutical induced-modulation of p-gp with activity of anticancer drugs.

Anticancer Activity of Acanthopanax trifoliatus (L) Merr Extracts is Associated with Inhibition of NF-κB Activity and Decreased Erk1/2 and Akt Phosphorylation

  • Wang, Hua-Qian;Li, Dong-Li;Lu, Yu-Jing;Cui, Xiao-Xing;Zhou, Xiao-Fen;Lin, Wei-Ping;Conney, Allan H.;Zhang, Kun;Du, Zhi-Yun;Zheng, Xi
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.21
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    • pp.9341-9346
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    • 2014
  • Acanthopanax trifoliatus (L) Merr (AT) is commonly used as an herbal medicine and edible plant in some areas of China and other Asian countries. AT is thought to have anticancer effects, but potential mechanisms remain unknown. To assess the anticancer properties of AT, we exposed prostate cancer cells to AT extracts and assessed cell proliferation and signaling pathways. An ethanol extract of AT was suspended in water followed by sequential extraction with petroleum ether, ethyl acetate and n-butanol. PC-3 cells were treated with different concentrations of each extract and cell viability was determined by the MTT and trypan blue exclusion assays. The ethyl acetate extract of the ethanol extract had a stronger inhibitory effect on growth and a stronger stimulatory effect on apoptosis than any of the other extracts. Mechanistic studies demonstrated that the ethyl acetate extract suppressed the transcriptional activity of NF-${\kappa}B$, increased the level of caspase-3, and decreased the levels of phospho-Erk1/2 and phospho-Akt. This is the first report on the anticancer activity of AT in cultured human prostate cancer cells. The results suggest that AT can provide a plant-based medicine for the treatment or prevention of prostate cancer.