scholarly journals Oroxylin�A exerts anticancer effects on human ovarian cancer cells via the PPARγ‑dependent reversal of the progesterone receptor membrane component 1/2 expression profile

2020 ◽  
Author(s):  
Jian‑Jiang Shen ◽  
Xiao‑Fei Zhu ◽  
Juan Xu ◽  
Zhi‑Fei Wang ◽  
Wan‑Jian Gu ◽  
...  
2019 ◽  
Vol 3 (Supplement_1) ◽  
Author(s):  
So Young Yoon ◽  
Soo Jung Park ◽  
Yoon Jung Park

Abstract Objectives The study was aimed to determine anticancer effects of Cordyceps militaris extract (CME) and its major bioactive compound, cordycepin, in human ovarian cancer cells, and to identify their putative molecular mechanism mediated by adenosine receptors (ADORAs). Methods CME was prepared in 50% ethanol solution. LC-MS was used for quantification and Q-TOF MS for qualifying bioactive compounds in CME. MTT assay was performed for cell viability in A2780, SKOV-3, TOV112D, and OVCAR-3 human ovarian cancer cell lines. cAMP response element (CRE)-luciferase reporter gene assays were used to determine whether antitumorigenic effect of CME/cordycepin is based on adenosine derivatives. Additionally, the involvement of ADORA signaling pathway was measured using with ADORA2A antagonist SCH 58261 and ADORA2B antagonist PSB 603. Results Cordycepin concentrations of CME was 21.8%. CME was effective to reduce cell viability in A2780 and OVCAR-3 with IC50 115.2 μg/ml and 155.94 μg/ml respectively, while SKOV-3 and TOV112D were relatively resistant to CME. cAMP production was significantly increased by treatment with cordycepin and, lesser extent, with CME. Among the four types of ADORAs, ADORA2A and 2B showed relatively higher expression levels in ovarian cancer cells. The cAMP production by CME was ameliorated by PSB 603, not SCH 58261, treatment. Conclusions CME and cordycepin have anticancer effects in human ovarian cancer cells via ADORA2B-cAMP pathway. Funding Sources NRF of Korea (2017R1D1A1B03034936 & 22A20130012143) and Health Fellowship Foundation.


2017 ◽  
Vol 13 (6) ◽  
pp. 1131-1141 ◽  
Author(s):  
Daniele Vergara ◽  
Stefania De Domenico ◽  
Andrea Tinelli ◽  
Eleonora Stanca ◽  
Loretta L. Del Mercato ◽  
...  

We describe the molecular mechanisms of the action of novel trans-restricted analogues of resveratrol with enhanced anti-cancer properties.


Antioxidants ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 1583
Author(s):  
Hyocheol Bae ◽  
Sunwoo Park ◽  
Jiyeon Ham ◽  
Jisoo Song ◽  
Taeyeon Hong ◽  
...  

Phytosterols, which are derived from plants, have various beneficial physiological effects, including anti-hypercholesterolemic, anti-inflammatory, and antifungal activities. The anticancer activities of natural products have attracted great attention, being associated with a low risk of side effects and not inducing antineoplastic resistance. β-sitosterol, a phytosterol, has been reported to have anticancer effects against fibrosarcoma and colon, breast, lung, and prostate cancer. However, there are no reports of its activity against ovarian cancer. Therefore, we investigated whether β-sitosterol shows anticancer effects against ovarian cancer using human ovarian cancer cell lines. We confirmed that β-sitosterol induced the apoptosis of ovarian cancer cells and suppressed their proliferation. It triggered pro-apoptosis signals and the loss of mitochondrial membrane potential, enhanced the generation of reactive oxygen species and calcium influx through the endoplasmic reticulum–mitochondria axis, and altered signaling pathways in human ovarian cancer cells. In addition, we observed inhibition of cell aggregation, suppression of cell growth, and decreased cell migration in ovarian cancer cells treated with β-sitosterol. Further, our data obtained using ovarian cancer cells showed that, in combination with standard anti-cancer drugs, β-sitosterol demonstrated synergistic anti-cancer effects. Thus, our study suggests that β-sitosterol may exert anti-cancer effects against ovarian cancer in humans.


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