Kurozu moromimatsu inhibits tumor growth of Lovo cells in a mouse model in vivo
| Autor: | Shio Jujo, Kazunori Myojin, Hiroe Nakazawa, Isao Ito, Toru Shizuma, Hidezo Mori, Naoto Fukuyama, Masanobu Nagano, Kazuo Ishiwata |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Pathology
medicine.medical_specialty Endocrinology Diabetes and Metabolism Mice Nude Antineoplastic Agents Apoptosis Biology Matrix metalloproteinase chemistry.chemical_compound Mice Random Allocation In vivo medicine Animals Nutrition and Dietetics Cell growth Plant Extracts Nitrotyrosine Cancer Oryza medicine.disease Molecular biology Specific Pathogen-Free Organisms chemistry Tumor progression Colonic Neoplasms Fermentation Metalloproteases Tyrosine Female Immunostaining Neoplasm Transplantation Phytotherapy |
| Zdroj: | Nutrition (Burbank, Los Angeles County, Calif.). 23(1) |
| ISSN: | 0899-9007 |
| Popis: | In Japan, rice vinegar that has been matured and fermented for years in earthenware jars is considered a health food with anticolon cancer action. It is divided into the liquid component (Kurozu) and the sediment (Kurozu moromimatsu), which contains large amounts of organic materials and minerals. The effect of Kurozu moromimatsu (Kurozu-M) on cancer has not yet been examined. In this study, we examined the activity of Kurozu-M on colon cancer and investigated the mechanisms involved, focusing on active oxygen generation, apoptosis, and metalloproteinases (MMPs).We used Lovo cells transplanted into nude mice as an experimental model. We measured the tumor volume and MMP levels and conducted hematoxylin-eosin staining (for polymorphonuclear leukocytes), terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling staining (for apoptosis), and immunostaining for nitrotyrosine (a marker of active oxygen generation) in control, Kurozu-treated, and Kurozu-M--treated groups.The tumor volume was the same in the control group (231 +/- 36 mm(3)) and Kurozu group (238 +/- 52 mm(3)), but was significantly reduced in the Kurozu-M group (152 +/- 28 mm(3), P0.001 versus control). Apoptosis of tumor cells and accumulation of polymorphonuclear leukocytes were not observed. Nitrotyrosine production, total MMP levels, and MMP activation were significantly reduced in the Kurozu-M group.The administration of Kurozu-M prolonged the lifespan of cancer cell-transplanted mice, inhibited tumor progression, and reduced nitrotyrosine production and MMP activation, but did not induce apoptosis. |
| Databáze: | OpenAIRE |
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