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Pagina 1 a partire dal 643 risultati
Evaluation of a special combination of glucan with organic selenium derivative in different murine tumor models.
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β-glucans are well-established immunomodulators with strong effects resulting in slowing or even inhibiting cancer growth. Recent studies have repeatedly suggested that the biological activities of β-glucan can be potentiated by the addition of other bioactive agents. In the current study, we
Effect of beta glucan on white blood cell counts and serum levels of IL-4 and IL-12 in women with breast cancer undergoing chemotherapy: a randomized double-blind placebo-controlled clinical trial.
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BACKGROUND
Breast cancer is the most common female malignancy in the world. Beta glucan can be a hematopoietic and an immune modulator agent in cancer patients. The aim of this trial was to determine the effect of beta glucan on white blood cell counts and serum levels of IL-4 and IL-12 in women
Effects of moderate exercise and oat beta-glucan on lung tumor metastases and macrophage antitumor cytotoxicity.
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Both moderate exercise and the soluble fiber beta-glucan can have beneficial effects on the initiation and growth of tumors, but the data are limited, and there is no information on their combined effects. This study tested the independent and combined effects of short-term moderate-exercise
A water-soluble aminated beta 1-3D-glucan derivative causes regression of solid tumors in mice.
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Meth A sarcoma, when inoculated in the skin, grew progressively in hybrid CB6 F1(Balb/c X C57B1/6) mice. When water-soluble aminated beta 1-3D-glucan (AG) was injected intravenously or intraperitoneally on day 7 of tumor growth, the tumors underwent complete regression. When the injection was
Comparative effects of Corynebacterium parvum, Brucella abortus extract, Bacillus Calmette-Guérin, glucan, levamisole, and tilorone with or without cyclophosphamide on tumor growth, macrophage production, and macrophage cytotoxicity in a murine mammary tumor model.
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In this laboratory, it has been repeatedly demonstrated (using a murine mammary tumor model) that the combination of cyclophosphamide (CY) and Corynebacterium parvum (CP) is more effective than either agent alone in the control of tumor growth. This paper presents information obtained in our model
Anti-tumor metastatic activity of beta-glucan purified from mutated Saccharomyces cerevisiae.
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The beta-glucans isolated from Saccharomyces cerevisiae (S. cerevisiae) enhance the innate immune system, but there is little evidence for its antitumor activity. To examine the antitumor and immunostimulating activities of beta-glucan (IS-2) purified from mutated S. cerevisiae, we made an
Natural microbial polysaccharide sulphoethyl glucan as antigenotoxic and cancer preventing agent.
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Naturally occurring polysaccharides isolated from the yeasts are the substances with versatile intriguing biomodulatory activities. One of the novel derivatives prepared from the (1 --> 3)-beta-D-glucan isolated from the cell walls of baker's yeast Saccharomyces cerevisiae is sulfoethyl glucan
Chemosensitization of carmustine with maitake beta-glucan on androgen-independent prostatic cancer cells: involvement of glyoxalase I.
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OBJECTIVE
To improve the poor efficacy (< 10%) of chemotherapy for patients with hormone-refractory prostate cancer, we investigated a possible cytotoxic effect of carmustine/beta-glucan combination on prostatic cancer PC-3 cells, focusing on a glutathione-dependent detoxifying enzyme, glyoxalase I
Blocking effect of anti-Dectin-1 antibodies on the anti-tumor activity of 1,3-beta-glucan and the binding of Dectin-1 to 1,3-beta-glucan.
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Schizophyllan (SPG) is used to treat cervical cancer in combination with irradiation to enhance the immunological surveillance system. Dectin-1 is a cell surface receptor for 1,3-beta-glucan. In this study, we prepared two anti-Dectin-1 monoclonal antibodies, 4B2 and SC30 having a K(D) of 7.04 x
Anticancer effects on human pancreatic cancer cells of triterpenoids, polysaccharides and 1,3-β-D-glucan derived from the fruiting body of Antrodia camphorata.
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Antrodia camphorata is a fungus native to Taiwan, and it is considered a precious medicinal agent. We analyzed triterpenoids, polysaccharides and 1,3-β-D-glucan, three major effective components in A. camphorata extracts (ACE). ACE exhibited a selective cytotoxic effect on BxPC-3 human pancreatic
Oligo-β-(1 → 3)-glucans: impact of thio-bridges on immunostimulating activities and the development of cancer stem cells.
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Recent developments of innovative anticancer therapies are based on compounds likely to stimulate the immune defense of the patients. β-(1 → 3)-Glucans are natural polysaccharides well-known for their immunostimulating properties. We report here on the synthesis of small oligo-β-(1 → 3)-glucans
Mechanism of the anti-tumour effect of glucans and fructosans: a comparison with C. parvum.
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The anti-tumour activity induced by glucans (lentinan, yeast cell walls, pseudonigeran, dextran, DEAE-dextran and dextran sulphate) and fructosans (levan and carboxymethyl-levan) was compared with the activity of C. parvum. The following effects on tumour systems in CBA mice were assayed: (a)
Soluble β-glucan from Grifola frondosa induces tumor regression in synergy with TLR9 agonist via dendritic cell-mediated immunity.
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The maturation of dendritic cells into more-immunostimulatory dendritic cells by stimulation with different combinations of immunologic agents is expected to provide efficient, adoptive immunotherapy against cancer. Soluble β-glucan maitake D-fraction, extracted from the maitake mushroom Grifola
Anti-tumor activity of an enzymatically synthesized alpha-1,6 branched alpha-1,4-glucan, glycogen.
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Oral administration of an enzymatically synthesized alpha-1,4:1,6-glycogen (ESG) at a dose of 50 mug/ml significantly prolonged the survival time of Meth A tumor-bearing mice. ESG also significantly stimulated macrophage-like cells (J774.1), leading to augmented production of nitric oxide (NO) and
Antitumor activity of orally administered maitake α-glucan by stimulating antitumor immune response in murine tumor.
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Maitake α-glucan, YM-2A, isolated from Grifola frondosa, has been characterized as a highly α-1,6-branched α-1,4 glucan. YM-2A has been shown to possess an anti-virus effect in mice; however, it does not directly inhibit growth of the virus in vitro, indicating that the anti-virus effect of YM-2A
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