論文 - 詳細
| RRC ID | 41723 |
|---|---|
| 著者 | Lung HL, Ip WK, Wong CK, Mak NK, Chen ZY, Leung KN. |
| タイトル | Anti-proliferative and differentiation-inducing activities of the green tea catechin epigallocatechin-3-gallate (EGCG) on the human eosinophilic leukemia EoL-1 cell line. |
| ジャーナル | Life Sci |
| Abstract |
A novel approach for the treatment of leukemia is the differentiation therapy in which immature leukemia cells are induced to attain a mature phenotype when exposed to differentiation inducers, either alone or in combinations with other chemotherapeutic or chemopreventive drugs. Over the past decade, numerous studies indicated that green tea catechins (GTC) could suppress the growth and induce apoptosis on a number of human cancer cell lines. However, the differentiation-inducing activity of GTC on human tumors remains poorly understood. In the present study, the effect of the major GTC epigallocatechin-3-gallate (EGCG) on the proliferation and differentiation of a human eosinophilc leukemic cell line, EoL-1, was examined. Our results showed that EGCG suppressed the proliferation of the EoL-1 cells in a dose-dependent manner, with an estimated IC(50) value of 31.5 microM. On the other hand, EGCG at a concentration of 40 microM could trigger the EoL-1 cells to undergo morphological differentiation into mature eosinophil-like cells. Using RT-PCR and flow cytometry, it was found that EGCG upregulated the gene and protein expression of two eosinophil-specific granule proteins, the major basic protein (MBP) and eosinophil peroxidase (EPO), in EoL-1 cells. Taken together, our findings suggest that EGCG can exhibit anti-leukemic activity on a human eosinophilic cell line EoL-1 by suppressing the proliferation and by inducing the differentiation of the leukemia cells. |
| 巻・号 | 72(3) |
| ページ | 257-68 |
| 公開日 | 2002-12-6 |
| DOI | 10.1016/s0024-3205(02)02236-1 |
| PII | S0024320502022361 |
| PMID | 12427485 |
| MeSH | Antineoplastic Agents, Phytogenic / pharmacology* Blood Proteins / biosynthesis Blood Proteins / genetics Catechin / analogs & derivatives* Catechin / pharmacology* Cell Differentiation Cell Division Dose-Response Relationship, Drug Eosinophil Granule Proteins Eosinophil Peroxidase Growth Inhibitors / pharmacology Humans Hypereosinophilic Syndrome / drug therapy* Hypereosinophilic Syndrome / metabolism Hypereosinophilic Syndrome / pathology Kinetics Peroxidases / biosynthesis Peroxidases / genetics RNA, Neoplasm / biosynthesis Ribonucleases* Tumor Cells, Cultured |
| IF | 3.647 |
| 引用数 | 40 |
| WOS 分野 | MEDICINE, RESEARCH & EXPERIMENTAL PHARMACOLOGY & PHARMACY |
| オルトメトリクス指標 |
オルトメトリクス指標項目
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| 各媒体での言及数の合計 | 0 |
| 過去6か月間でのオルトメトリクス指標の変動値 | 0.0 |
| リソース情報 | |
| ヒト・動物細胞 | EoL-1(RCB0641) |