• 제목/요약/키워드: anti-tumor promoting

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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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    • 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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Anti-tumor Promoting Activity of Some Malaysian Traditional Vegetable (Ulam) Extracts by Immunoblotting Analysis of Raji Cells

  • Ali, A.M.;Mooi, L.Y.;Yih, K. Yih;Norhanom, A.W.;Saleh, K. Mat;Lajis, N.H.;Yazid, A.M.;Ahmad, F.B.H.;Prasad, U.
    • Natural Product Sciences
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    • 제6권3호
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    • pp.147-150
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    • 2000
  • The extracts of Carica papaya (flower), Barringtonia macrostachya (leaves), Coleus tuberosus (tuber), Mangifera indica (fruit skin) and Eugenia polyantha (leaves) showed strong in vitro anti-tumor promoting activity when assayed using Raji cells (Mooi et al., 1999). The antitumor promoting activity of the crude extracts was further analyzed by immunoblotting analysis of Raji cells carving Epstein-Barr virus genome. The expression of early antigens diffuse (EA-D) and early antigens restricted (EA-R) was determined by performing western blotting of treated Raji cells with human sera of nasopharyngeal carcinoma patients. All the plant extracts were shown to be able to suppress both EA-D and EA-R.

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한약(韓藥)의 면역조절(免疫調節) 작용(作用)을 통(通)한 종양치료(腫瘍治療)에 대(對)한 연구(硏究) (The effects of immune activating herbs on the anti-tumor activity)

  • 이정수;이연월;조정효;손창규;유화승;조종관
    • 대한한방종양학회지
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    • 제9권1호
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    • pp.65-73
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    • 2003
  • The researches for tumor and the developments for new anti-tumor medicine are being continuously developed in the oriental as well as the west. The principles therapy of anti-tumor activity was based on knowledge of the method of support the healthy energy and strengthen the body resistance, promote blood circulation to remove blood stasis, clear away heat and toxic materials, dissipate phlegm and disperse the accumulation of evils. But the major clinical features of tumor was to be considered in developing a treatment plan include (1) distinguish between clinical and pathologic staging - acute and chronic, (2) classification of pathologic pattern, and (3) distinction of body situation : for examples asthenia - sthenia etc. It was most important to distinguish between supporting the healthy and eliminating the evil factors and to treat differently at the root and the branch cause of a neoplasm. In clinical study and experimental study, the effects of oriental medicine could be summarized as three that were decreasing toxicity of chemo-therapy, directly suppressing and killing cancerous cell and increasing chemo-effect through preventing metastasis. Improving organic immunity with oriental medicine could be summarized as five that were promoting phagocytosis of macrophage, inducing interferon, promoting formation of immnoglobulin, increasing number of T-cell and promoting transformation of lymphocyte. It is suggested that effective use of immune activating herbs inhibited metastasis and decreased recurrence and then we were able to expect increasing survival rate and improving clinical symptoms and quality of life(QOL) of tumor patients.

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IH-901, AN INTESTINAL BACTERIAL METABOLITE DERIVED FROM THE PROTOPANAXADIOL GINSENOSIDE, HAS ANTI-TUMOR PROMOTING EFFECTS IN MOUSE SKIN.

  • Lee, Ji-Yoon;Chun, Kyung-Soo;Sung, Jong-Hwan;Surh, Young-Joon
    • 한국독성학회:학술대회논문집
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    • 한국독성학회 2001년도 International Symposium on Dietary and Medicinal Antimutgens and Anticarcinogens
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    • pp.139-140
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    • 2001
  • Ginseng saponins (ginsenosides) have been regarded as principal components responsible for the majority of pharmacological activities exerted by ginseng. IH-901, an intestinal bacterial metabolite derived from the protopanaxadiol saponin of Panax ginseng C.A. Meyer, has been reported to have anti-tumor effects including inhibition of angiogenesis, invasion and metastasis, as well as induction of tumor cell apoptosis. (omitted)

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Anti-tumor Promoting Activity of Some Malaysian Traditional Vegetables (Ulam)

  • Mooi, L. Yang;Ali, A.M.;Norhanom, A.B.;Salleh, K. Mat;Murakami, A.;Koshimizu, K.
    • Natural Product Sciences
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    • 제5권1호
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    • pp.33-38
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    • 1999
  • Ethanolic extracts of different parts of 10 local traditional vegetables (ulam) (Amaranthus gangeticus, Jussiaea linifolia, Eugenia polyantha, Trapa incisa, Trichosanthes anquina, Mangifera indica, Pachyrrhirus erosus, Barringtonia mcarostachya, Carica papaya, and Coleus tuberosus) were screened for in vitro antitumor promoting activity using the inhibition test of Epstein-Barr virus (EBV) activation in Raji cells induced by phorbol 12-myristate 13-acetate and sodium-n-butyrate. All the extracts were found to have strong inhibition activity toward EBV-activation, except for leaf extract of T. anquina. The extracts were non-cytotoxic to the Raji cells except for the extracts of A. gangeticus (leaves), B. macrostachya (leaves), E. polyantha (young leaves), and J. linifolia (leaves) where the viability of the cells were decreased significantly.

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Inhibitory effects of [6]-gingerol on phorbol ester-induced cox-2 expression in mouse skin: p38 mapk and p65/rela as possible molecular targets

  • Kim, Sue-Oko;Chun, Kyung-Soo;Surh, Young-Joon
    • 대한약학회:학술대회논문집
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    • 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2-2
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    • pp.149.3-150
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    • 2003
  • [6]-Gingerol, a major pungent ingredient of ginger (Zingiber officinale Roscoe, Zingiberaceae) has a wide array of pharmacologic effects. Our previous studies have demonstrated that [6]-gingerol inhibits mouse skin tumor promotion and anchorage-independent growth of cultured mouse epidermal cells stimulated with epidermal growth factor. In this study, we have investigated the molecular mechanisms underlying anti-tumor promoting effects of [6]-gingerol on mouse skin carcinogenesis. (omitted)

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Anti-metastasis Activity of Black Rice Anthocyanins Against Breast Cancer: Analyses Using an ErbB2 Positive Breast Cancer Cell Line and Tumoral Xenograft Model

  • Luo, Li-Ping;Han, Bin;Yu, Xiao-Ping;Chen, Xiang-Yan;Zhou, Jie;Chen, Wei;Zhu, Yan-Feng;Peng, Xiao-Li;Zou, Qiang;Li, Sui-Yan
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권15호
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    • pp.6219-6225
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    • 2014
  • Background: Increasing evidence from animal, epidemiological and clinical investigations suggest that dietary anthocyanins have potential to prevent chronic diseases, including cancers. It is also noteworthy that human epidermal growth factor receptor 2 (ErbB2) protein overexpression or ErbB2 gene amplification has been included as an indicator for metastasis and higher risk of recurrence for breast cancer. Materials and Methods: The present experiments investigated the anti-metastasis effects of black rice anthocyanins (BRACs) on ErbB2 positive breast cancer cells in vivo and in vitro. Results: Oral administration of BRACs (150 mg/kg/day) reduced transplanted tumor growth, inhibited pulmonary metastasis, and decreased lung tumor nodules in BALB/c nude mice bearing ErbB2 positive breast cancer cell MDA-MB-453 xenografts. The capacity for migration, adhesion, motility and invasion was also inhibited by BRACs in MDA-MB-453 cells in a concentration dependent manner, accompanied by decreased activity of a transfer promoting factor, urokinase-type plasminogen activator (u-PA). Conclusions: Together, our results indicated that BRACs possess anti-metastasis potential against ErbB2 positive human breast cancer cells in vivo and in vitro through inhibition of metastasis promoting molecules.