期刊
JOURNAL OF ETHNOPHARMACOLOGY
卷 120, 期 2, 页码 129-137出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.jep.2008.07.030
关键词
Rhizoma Paridis total saponin; Mass spectrometry; Peptide fingerprinting
资金
- National Nature Science Foundation of China [30471701, 30670958]
- Medical Technology Development Foundation of Nanjing [ZKX05015]
Rhizoma Paridis total saponin (RPTS) had been identified as the major components responsible for the anti-tumor effects of the herb Rhizoma Paridis, which had been used in China for centuries to treat many diseases including tumor. To elucidate the anti-tumor mechanism of RPTS, a proteomic analysis was carried out with RPTS treatment in HepG2 cells. More than 50 proteins showed a significant change between control (0.01% DMSO) and RPTS (IC50 approximately 10 mu g/ml) treated cells after 48 h. Twelve proteins had been identified by matrix assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS) using peptide fingerprinting from 15 protein spots (density difference >2 fold between the control and RPTS-treated group). Among them, six proteins were down-regulated (dUTPase, hnRNP K, GMP synthase, etc.) and six proteins were up-regulated (DNase gamma, Nucleoside diphosphate kinase A, Centrin-2, etc.) by RPTS treatment in HepG2 cells as determined by Spot Volume (p < 0.05). Most of the identified proteins were associated with tumor initiation, promotion. and progression. These findings might offer valuable insights into the mechanism of anti-tumor effect affected by RPTS treatment in HepG2 cells. (C) 2008 Elsevier Ireland Ltd. All rights reserved.
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