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Page 1 de 115 résultats
Differential responses of lignin derivatives between tumor and normal tissue derived cell lines; effects on cellular adhesion and cell growth.
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When cell lines derived from tumor tissues were plated simultaneously with the lignin derivative or dextran sulfate in plastic culture dishes, the cells did not completely adhere to dishes and/or the shape of even the adhering cells changed significantly. On the other hand, using cell lines derived
Inhibitory effect of lignin-related pine cone extract on cell proliferating enzyme activity of spontaneous mammary tumours in mice.
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A lignin-related cone extract of pine (Pinus parviflora Sieb et Zucc) (FrVI) or a synthetic lignin (DHP-FA) (175 micrograms/0.1 ml 0.9% NaCl solution) was injected intravenously to SHN mice bearing spontaneous mammary tumours three cycles each with consecutive 3 days of treatment and 4 days of
The nonfermentable dietary fiber lignin alters putative colon cancer risk factors but does not protect against DMH-induced colon cancer in rats.
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The effect of supplementation of the diet with autohydrolyzed lignin on 1,2-dimethylhydrazine (DMH)-induced colon carcinogenesis was studied using 112 male Sprague-Dawley rats. Rats received eight weekly injections of DMH (9.5 mg/kg s.c.) or the saline vehicle solution and then were maintained on a
Oxidative metabolism of the anti-cancer agent mitoxantrone by horseradish, lacto-and lignin peroxidase.
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Mitoxantrone (MH(2)X), an anthraquinone-type anti-cancer agent used clinically in the treatment of human malignancies, is oxidatively activated by the peroxidase/H(2)O(2) enzyme system. In contrast to the enzymatic mechanisms of drug oxidation, the chemical transformations of MH(2)X are not well
Dietary lignin, and insoluble fiber, enhance uterine cancer but did not influence mammary cancer induced by N-methyl-N-nitrosourea in rats.
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Previous investigations suggested potential breast cancer-preventive properties of dietary fiber from cabbage. The purpose of the present investigation was to determine whether lignin, a component of cabbage fiber, would protect against mammary carcinogenesis by N-methyl-N-nitrosourea (MNU) in
Antiproliferative effect of synthetic lignin against human breast cancer and normal fetal lung cell lines. Potency of low molecular weight fractions.
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OBJECTIVE
Due to a lack of chemotherapeutics to efficiently control neoplastic processes, there is a need for discovering new, more efficient anticancer drugs that would distinguish malignant from normal cells.
METHODS
We studied the effect of short (4 h) and long (72 h) treatment with different
Paclitaxel-loaded lignin particle encapsulated into electrospun PVA/PVP composite nanofiber for effective cervical cancer cell inhibition
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Electrospun composite nanofibrous scaffolds have been regarded as a potential carrier for local drug delivery to prevent tumor recurrence. Herein, a model drug (paclitaxel) was creatively loaded into lignin nanoparticles (PLNPs) and then encapsulated into the polymer of poly (vinyl
Peptide-guided resiquimod-loaded lignin nanoparticles convert tumor-associated macrophages from M2 to M1 phenotype for enhanced chemotherapy
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Nanomedicines represent innovative and promising alternative technologies to improve the therapeutic effects of different drugs for cancer ablation. Targeting M2-like tumor-associated macrophages (TAMs) has emerged as a favorable therapeutic approach to fight against cancer through the modulation of
Novel 4-in-1 strategy to combat colon cancer, drug resistance and cancer relapse utilizing functionalized bioinspiring lignin nanoparticle.
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Colon cancer is one of the fatal forms of cancer all round the world with a equal frequency of occurrence in both male and female population. Mutational changes and defects in APC (Adenomatous Polyposis Coli) and DNA mismatch repair genes accompanied by genetic chaos in oncogenic pathways leads to
In vitro evaluation of biodegradable lignin-based nanoparticles for drug delivery and enhanced antiproliferation effect in cancer cells.
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Currently, nanosystems have been developed and applied as promising vehicles for different biomedical applications. We have developed three lignin nanoparticles (LNPs): pure lignin nanoparticles (pLNPs), iron(III)-complexed lignin nanoparticles (Fe-LNPs), and Fe3O4-infused lignin nanoparticles
Machilin D, a Lignin Derived from Saururus chinensis, Suppresses Breast Cancer Stem Cells and Inhibits NF-κB Signaling.
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Cancer stem cells are responsible for breast cancer initiation, metastasis, and relapse. Targeting breast cancer stem cells (BCSCs) using phytochemicals is a good strategy for the treatment of cancer. A silica gel, a reversed-phase C18 column (ODS), a Sephadex LH-20 gel, thin layer chromatography,
Inhibitory effect of lignin from Canna edulis Ker residues on trypsin: kinetics and molecular docking studies
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Background: In our previous study, the lignin extracted from Canna edulis Ker residues showed a strong α-glucosidase inhibitory and α-amylase enhanced activity. Protease activity inhibition may play a key role in disease processes, such
Functionalization of carboxylated lignin nanoparticles for targeted and pH-responsive delivery of anticancer drugs.
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OBJECTIVE
To carboxylate kraft lignin toward the functionalization of carboxylated lignin nanoparticles (CLNPs) with a block copolymer made of PEG, poly(histidine) and a cell-penetrating peptide and then evaluate the chemotherapeutic potential of the innovative nanoparticles.
METHODS
The produced
Fiber, intestinal sterols, and colon cancer.
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It has been postulated that dietary fiber's protective effect against the development of colon cancer, diverticular disease, and atherosclerosis may be due to the adsorption and/or dilution of intestinal sterols such as bile acids and neural sterols and their bacterial metabolites by component(s) of
Low molecular weight lignin suppresses activation of NF-kappaB and HIV-1 promoter.
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Human immunodeficiency virus type 1 (HIV-1) is a cytopathic retrovirus and the primary etiological agent of acquired immunodeficiency syndrome (AIDS) and related disorders. In cells chronically infected with HIV-1, nuclear factor-kappaB (NF-kappaB) activation by external stimuli such as tumor
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