Characterization of Mechanisms of Glutathione Conjugation with Halobenzoquinones in Solution and HepG2 Cells

2018 ◽  
Vol 52 (5) ◽  
pp. 2898-2908 ◽  
Author(s):  
Wei Wang ◽  
Yichao Qian ◽  
Jinhua Li ◽  
Naif Aljuhani ◽  
Arno G. Siraki ◽  
...  
Molecules ◽  
2019 ◽  
Vol 24 (21) ◽  
pp. 3939 ◽  
Author(s):  
Qin Shu ◽  
Jianan Wu ◽  
Qihe Chen

As a novel natural compound delivery system, liposomes are capable of incorporating lipophilic bioactive compounds with enhanced compound solubility, stability and bioavailability, and have been successfully translated into real-time clinical applications. To construct the soy phosphatidylcholine (SPC)–cholesterol (Chol) liposome system, the optimal formulation was investigated as 3:1 of SPC to Chol, 10% mannosylerythritol lipid-A (MEL-A) and 1% betulinic acid. Results show that liposomes with or without betulinic acid or MEL-A are able to inhibit the proliferation of HepG2 cells with a dose-effect relation remarkably. In addition, the modification of MEL-A in liposomes can significantly promote cell apoptosis and strengthen the destruction of mitochondrial membrane potential in HepG2 cells. Liposomes containing MEL-A and betulinic acid have exhibited excellent anticancer activity, which provide factual basis for the development of MEL-A in the anti-cancer applications. These results provide a design thought to develop delivery liposome systems carrying betulinic acid with enhanced functional and pharmaceutical attributes.


2016 ◽  
Vol 61 ◽  
pp. 37-45 ◽  
Author(s):  
Kosha Mehta ◽  
Mark Busbridge ◽  
Derek Renshaw ◽  
Robert W. Evans ◽  
Sebastien Farnaud ◽  
...  
Keyword(s):  

Molecules ◽  
2018 ◽  
Vol 24 (1) ◽  
pp. 124 ◽  
Author(s):  
Sheng Fang ◽  
Fubin Lin ◽  
Daofeng Qu ◽  
Xianrui Liang ◽  
Liping Wang

In this study, the chemical profiles and antioxidant activities of red cabbage anthocyanin (RCA)-enriched extract are evaluated. The effects of column temperature on the HPLC resolution of the RCAs are studied. The HPLC resolutions became better as the column temperature increased from 20 °C–45 °C. An optimized HPLC condition was achieved at 45 °C and used for the quantification and qualification of the RCAs. The anthocyanins in the enriched powder are all derivatives of cyanidin (268 ± 2 μg/mg), mainly with 19% nonacylated, 51% monoacylated, and 31% diacylated structures with ferulic, sinapic, p-coumaric, and caffeic acids characterized by HPLC-MS. The RCA extracts markedly reduced intracellular oxidative stress production by H2O2 on HepG2 cells and consequently ameliorated cell apoptosis and improved viability. The analytical method and cellular antioxidant activity demonstration of the RCAs will greatly facilitate their functional applications.


Virology ◽  
2008 ◽  
Vol 379 (1) ◽  
pp. 30-37 ◽  
Author(s):  
Teresa M. Abraham ◽  
Eric B. Lewellyn ◽  
Kathleen M. Haines ◽  
Daniel D. Loeb

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