Biotransformation of valdecoxib by plant cell cultures
| Autor: | V. Ciddi, V. Molmoori, K. Srisailam |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Time Factors
Nicotiana tabacum Bioengineering Applied Microbiology and Biotechnology Biochemistry Hydroxylation chemistry.chemical_compound Incubators Biotransformation Tandem Mass Spectrometry medicine Molecular Biology Cells Cultured Chromatography High Pressure Liquid Demethylation Sulfonamides Chromatography Plants Medicinal biology fungi food and beverages Substrate (chemistry) General Medicine Isoxazoles Catharanthus roseus Azadirachta biology.organism_classification Valdecoxib chemistry Biotechnology medicine.drug |
| Zdroj: | Applied biochemistry and biotechnology. 144(3) |
| ISSN: | 0273-2289 |
| Popis: | Valdecoxib is a new anti-inflammatory drug that is highly selective for inhibition of the inducible form of cyclooxygenase (COX-2). In the present study, biotransformation of valdecoxib was investigated in cell cultures of five medicinal plants, viz., Catharanthus roseus, Azadirachta indica, Capsicum annuum, Ervatamia heyneana, and Nicotiana tabacum. Identification of the biotransformed products was carried out by using high-performance liquid chromatography coupled with diode array detection and liquid chromatography--tandem mass spectrometry analysis. All the cultures transformed valdecoxib into more polar compounds, and C. roseus also produced one unknown compound that is less polar than the substrate. The reactions performed by these plant cell cultures include hydroxylation, methylation, and demethylation. Optimization studies were performed to investigate the effect of the day of extraction and substrate concentration on biotransformation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink