Identification and characterization of chemical components in the bioactive fractions of Cynomorium coccineum that possess anticancer activity
| Autor: | Burton B. Yang, Yizhen Xie, Juanjuan Peng, Mouna Sdiri, Li Xiangmin |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Programmed cell death
HepG2 autophagy Cell Blotting Western Antineoplastic Agents Apoptosis Vacuole Applied Microbiology and Biotechnology Mass Spectrometry 03 medical and health sciences chemistry.chemical_compound Anthraquinones Cynomorium coccineum medicine Humans Molecular Biology Ecology Evolution Behavior and Systematics Chromatography High Pressure Liquid 030304 developmental biology Cell Proliferation 0303 health sciences Cynomorium biology cell apoptosis Plant Extracts Autophagy Cell Biology Hep G2 Cells biology.organism_classification Flow Cytometry LC3II UPLC-Q-Orbitrap/MS medicine.anatomical_structure chemistry Biochemistry Microscopy Fluorescence Cytoplasm Developmental Biology Research Paper |
| Zdroj: | International Journal of Biological Sciences |
| ISSN: | 1449-2288 |
| Popis: | Cynomorium coccineum has long been used as the health and medicinal plant known to induce cancer cell death. However, the bioactive compounds of C. coccineum and the underlying mechanism of their regulator in cell autophagy and cell apoptosis remain unexplored. In our previous study, we found that the ethanol extract had antitumor activity through inducing cancer cell death. In this study, by detecting the anti-tumor effect of sequence extracts from Cynomorium coccineum, the active constituents were collected in solvent ethyl acetate. A strategy based on ultra-performance liquid chromatography coupled with hybrid quadrupole-orbitrap mass spectrometry (UPLC-Q-Orbitrap/MS) was first utilized to analyze the chemical constituents of active fraction (ethyl acetate fraction, CS3). A total of 29 compounds including 8 triterpenoids, 6 flavonoids, 4 fatty acids, 8 phenolic acids, 1 anthraquinones, 1 nucleoside and 1 sterol were detected and identified or tentatively identified for the first time in Cynomorium coccineum. We found that CS3 induces cancer cell death accompanied with a great number of vacuoles in the cytoplasm. CS3-induced autophagosome formation was found and confirmed by electron microscopy and the high expression levels of microtubule-associated protein-1 light chain 3-II (LC3II), a marker protein of autophagy. We additionally demonstrated that CS3 activated and increased the pro-apoptotic mitochondrial proteins, BNIP3 and BNIP3L, in mRNA and protein levels. The constituents of CS3 down-regulated anti-apoptotic BCL2, and then releases autophagic protein Beclin-1. These finding for the first time systematically not only explore and identify the active constituents of CS3 in Cynomorium coccineum, but also examined the mechanism associated with CS3-induced cell death via cell autophagy. This active component may serve as a potential source to obtain new autophagy inducer and anti-cancer compounds for hepatocellular carcinoma. |
| Databáze: | OpenAIRE |
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