PloS one, 2016-03, Vol.11 (3), p.e0150235-e0150235
2016
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Details
- Autor(en) / Beteiligte
- Titel
- Cudrania tricuspidata Stem Extract Induces Apoptosis via the Extrinsic Pathway in SiHa Cervical Cancer Cells
- Ist Teil von
- PloS one, 2016-03, Vol.11 (3), p.e0150235-e0150235
- Ort / Verlag
- United States: Public Library of Science
- Erscheinungsjahr
- 2016
- Quelle
- Free E-Journal (出版社公開部分のみ）
- Beschreibungen/Notizen
- The focus of this study is the anti-cancer effects of Cudrania tricuspidata stem (CTS) extract on cervical cancer cells. The effect of CTS on cell viability was investigated in HPV-positive cervical cancer cells and HaCaT human normal keratinocytes. CTS showed significant dose-dependent cytotoxic effects in cervical cancer cells. However, there was no cytotoxic effect of CTS on HaCaT keratinocytes at concentrations of 0.125-0.5 mg/mL. Based on this cytotoxic effect, we demonstrated that CTS induced apoptosis by down-regulating the E6 and E7 viral oncogenes. Apoptosis was detected by DAPI staining, annexin V-FITC/PI staining, cell cycle analysis, western blotting, RT-PCR, and JC-1 staining in SiHa cervical cancer cells. The mRNA expression levels of extrinsic pathway molecules such as Fas, death receptor 5 (DR5), and TNF-related apoptosis-inducing ligand (TRAIL) were increased by CTS. Furthermore, CTS treatment activated caspase-3/caspase-8 and cleavage of poly (ADP-ribose) polymerase (PARP). However, the mitochondrial membrane potential and expression levels of intrinsic pathway molecules such as Bcl-2, Bcl-xL, Bax, and cytochrome C were not modulated by CTS. Taken together, these results indicate that CTS induced apoptosis by activating the extrinsic pathway, but not the intrinsic pathway, in SiHa cervical cancer cells. These results suggest that CTS can be used as a modulating agent in cervical cancer.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 1932-6203eISSN: 1932-6203DOI: 10.1371/journal.pone.0150235Titel-ID: cdi_plos_journals_1771736674
- Format
- –
- Schlagworte
- Acids, Adenosine diphosphate, Analysis, Annexin V, Anticancer properties, Apoptosis, Apoptosis - drug effects, Bcl-2 protein, Bcl-x protein, Binding sites, Biology and Life Sciences, Biotechnology, Cancer, Care and treatment, Caspase, Caspase-3, Caspase-8, Cell cycle, Cell Cycle - drug effects, Cell growth, Cell Line, Tumor, Cell Shape - drug effects, Cervical cancer, Cervix, Chromatography, High Pressure Liquid, Cudrania tricuspidata, Cytochrome, Cytochrome c, Cytotoxicity, Down-Regulation - drug effects, Female, Gene expression, Health aspects, Herbal medicine, Human papillomavirus, Humans, Immunoglobulins, Informatics, Keratinocytes, Keratinocytes - cytology, Keratinocytes - drug effects, Laboratories, Medical research, Medicine and Health Sciences, Membrane potential, Mitochondria, Moraceae - chemistry, Oncogene Proteins, Viral - genetics, Oncogene Proteins, Viral - metabolism, Pharmacy, Phenols - analysis, Physical Sciences, Plant Extracts - pharmacology, Plant Stems - chemistry, Poly(ADP-ribose) polymerase, Polyimide resins, Polymerase chain reaction, Proteins, Receptors, Death Domain - metabolism, Research and analysis methods, Ribose, RNA, Messenger - genetics, RNA, Messenger - metabolism, RNA, Small Interfering - metabolism, Signal Transduction - drug effects, Staining, Studies, TRAIL protein, Uterine Cervical Neoplasms - pathology, Volatile Organic Compounds - analysis, Western blotting