scholarly journals Stability of blueberry anthocyanin, anthocyanidin and pyranoanthocyanidin pigments and their inhibitory effects and mechanisms in human cervical cancer HeLa cells

RSC Advances ◽  
2019 ◽  
Vol 9 (19) ◽  
pp. 10842-10853 ◽  
Author(s):  
Fengguang Pan ◽  
Yanjun Liu ◽  
Jingbo Liu ◽  
Erlei Wang

The aim of this study was to conduct a comparative analysis on the stability and anticancer activities of anthocyanin, anthocyanidin and pyranoanthocyanidin pigments derived from blueberries.

Foods ◽  
2019 ◽  
Vol 8 (8) ◽  
pp. 346 ◽  
Author(s):  
Wan-Ning Liu ◽  
Jia Shi ◽  
Yu Fu ◽  
Xin-Huai Zhao

Flavonoids are natural polyphenolic compounds with desired bio-functions but with chemical instability and sensitivity to temperature, oxygen, and other factors. Apigenin and luteolin, two flavones of the flavonoid family in plant foods, were; thus, assessed and compared for their stability, especially the changes in anti-cancer activity in response to the conducted heat treatments and the addition of ferrous or cupric ions. The two flavones in aqueous solutions showed first-order degradation at 20 and 37 °C. The addition of ferrous or cupric ions (except for Cu2+ at 37 °C) enhanced luteolin stability via forming the luteolin–metal complexes; however, Fe/Cu addition (especially at 37 °C) consistently impaired apigenin stability. Using the human cervical cancer Hela cells and two cell treatment times (24 and 48 h), it was evident that heat treatments (37 and 100 °C) or Fe/Cu addition could endow apigenin and luteolin with decreased activities in growth inhibition, DNA damage, intracellular reactive oxygen species (ROS) generation, and apoptosis induction. In general, higher temperature led to greater decrease in these activities, while Fe2+ was more effective than Cu2+ to decrease these activities. The correlation analysis also suggested that the decreased ROS generation of the two flavones in the Hela cells was positively correlated with their decreased apoptosis induction. It is; thus, concluded that the two treatments can influence the two flavones’ stability and especially exert an adverse impact on their anti-cancer activities.


2021 ◽  
pp. 1-27
Author(s):  
Nabil Mohie Abdel-Hamid ◽  
Moustafa Fathy ◽  
Chika Koike ◽  
Toshiko Yoshida ◽  
Motonori Okabe ◽  
...  

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Yu Wu ◽  
Xianjing Hu ◽  
Liyan Song ◽  
Jianhua Zhu ◽  
Rongmin Yu

Inflammation is known to be closely associated with the development of cancer. The study was launched in human cervical cancer HeLa cells to investigate the antitumor and anti-inflammatory effects of P2, a marine polypeptide fraction from an important fishery resourceArca subcrenata. The basic research showed that P2 could suppress the production of nitric oxide in LPS-induced RAW264.7 macrophage cells as well as the secretion of inflammatory cytokines IL-6 and TNF-αin human cervical cancer HeLa cells. For the molecular mechanisms, P2 was shown to downregulate the gene expression of proinflammatory cytokines IL-6 and IL-8 and to inhibit the COX-2 and iNOS-related pathways in HeLa cells. In consequence, P2 might inhibit tumor development by blocking the interaction between tumor microenvironment and proinflammatory mediators. All findings indicate that P2 possesses the potential to be developed as a novel agent for cancer therapy.


2021 ◽  
Vol 20 (1) ◽  
pp. 56-63
Author(s):  
Li Jiang ◽  
Zhi-Cheng Yao ◽  
Miao-Miao Liu ◽  
Run-Hui Ma ◽  
Kiran Thakur

Cervical cancer has always been the top malignant cancer among female cancers in the world. Due to its recurrence, metastasis rate, and drug resistance, the treatment results of cervical cancer have been unsatisfactory. Apigetrin is present in a variety of fruits and vegetables and has been reported to have antioxidant, free radical scavenging, anti-inflammatory, and anticancer activities. Therefore, this study focuses on the effect of apigetrin on the autophagy of cervical cancer HeLa cells based on the previous research. The results showed that apigetrin can enhance the autophagy fluorescence of light chain 3B (LC3B), and further combined with quantitative real-time PCR (qPCR) and Western blotting found that the expression of autophagy-related genes and proteins p-mTOR, Beclin1, and LC3B increased, while the expression of AMPK, ULK1, and p62 decreased. In addition, apigetrin also promoted the release of Ca2+, the PERK/eIF2α/ATF4/chop, and IRE1α pathways activate endoplasmic reticulum (ER) stress. The addition of 4PBA proved that ER stress promoted autophagy in HeLa cells. Finally, the addition of the 3-MA indicates the relationship between autophagy and apoptosis in HeLa cells. Our results indicate that apigetrin has a certain anticancer potential and can be used as a drug adjuvant and food additive for the prevention and treatment of cervical cancer.


2016 ◽  
Vol 11 (4) ◽  
pp. 838 ◽  
Author(s):  
Ning Xia

<p class="Abstract">The present study was aimed at to demonstrate the antitumor effects of syringin in HeLa human cervical cancer cells. Its effects on apoptosis, cell cycle phase distribution as well as on cell migration were also examined. The effect on cell proliferation was evaluated by MTT assay, while as effects on colony formation were assessed using clonogenic assay. Syringin inhibited cancer cell growth in HeLa cells in a time-dependent as well as in a concentration-dependent manner. Syringin also led to inhibition of colony formation efficacy with complete suppression at 100 µM drug dose. Syringin could induce G2/M cell cycle arrest along with slight sub-G1 cell cycle arrest. HeLa cells began to emit red fluorescence as the dose of syringin increased from 0 µM in vehicle control to 100 µM. Syringin also inhibited cell migration in a dose-dependent manner with 100 µM dose of syringin leading to 100% inhibition of cell migration.</p><p> </p>


2019 ◽  
Vol 15 (65) ◽  
pp. 631 ◽  
Author(s):  
MaríaElena Sánchez-Mendoza ◽  
JoséAngel Santiago-Cruz ◽  
Jesús Arrieta ◽  
Jazmín García-Machorro ◽  
Daniel Arrieta-Baez

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Michèle Stella Majoumouo ◽  
Marius Belmondo Tincho ◽  
Rufin Marie Kouipou Toghueo ◽  
Thureyah Morris ◽  
Donavon Charles Hiss ◽  
...  

Endophytic fungi are potential sources of novel bioactive metabolites from a natural product drug discovery perspective. This study reports the bioactivity-directed fractionation of the secondary metabolites of the ethyl acetate extract of a fermentation culture of endophytic fungi from Terminalia catappa which were then evaluated for their cytotoxicity against human cervical cancer (HeLa) cells and human foreskin fibroblast (HFF) cells. Furthermore, apoptosis was determined using the Annexin V/propidium iodide (PI) flow cytometry assay. Endophyte extracts N2, N7, N8, N97, N169, and N233 were obtained from Trichoderma sp, Phoma sp, Phomopsis phyllanticola, Fusarium oxyporum, Collectotrichum sp, and Cryptococcus flavescens, respectively. The N97 extract was most active with a 50% inhibitory concentration (IC50) of 33.35 µg/ml. A 50% cytotoxic concentration (CC50) of 268.4 µg/ml was obtained with HFF cells and the selectivity index (SI) was 8.01. The percentages of cell populations were increased at late apoptosis (Annexin+/PI+), with the percentages of 27.4 ± 0.3 and 19.2 ± 0.01 obtained, respectively, for 50 µg/ml and 80 µg/ml of the N97 extract and 2.1 ± 0.1 obtained for the control in late apoptosis (Annexin V+/PI+) . Moreover, a higher reduction in the percentage of viable cells was observed in the HeLa control cells (93.6 ± 0.3), but the percentages of viable HeLa cells were 37 ± 0.05 and 45 ± 0.1, respectively, for the 50 µg/ml and 80 µg/ml treatments with the N97 extract. Also, the percentages of 34.7 ± 0.1 and 33.9 ± 0.4 were, respectively, obtained for 50 µg/ml and 80 µg/ml compared to the control with 4.6 ± 0.2, in early apoptosis (Annexin V+/PI-). These findings highlight the anticancer potential of the N97 extract of endophytic fungi from Terminalia catappa, which is mediated through apoptosis and presumably also attenuation of chemoresistance.


2018 ◽  
Vol 96 (10) ◽  
pp. 1004-1011 ◽  
Author(s):  
Zita Bognar ◽  
Katalin Fekete ◽  
Rita Bognar ◽  
Aliz Szabo ◽  
Reka A. Vass ◽  
...  

Previously, we found that desethylamiodarone (DEA) may have therapeutic potentiality in bladder cancer. In this study, we determined its effects on human cervical cancer cells (HeLa). Cell viability was evaluated by Muse Cell Count & Viability Assay; cell apoptosis was detected by Muse Annexin V & Dead Cell Assay. Cell cycle was flow cytometrically determined by Muse Cell Cycle Kit and the morphological changes of the cells were observed under a fluorescence microscope after Hoechst 33342 staining. The changes in the expression levels of apoptosis-related proteins in the HeLa cells were assessed by immunoblot. Our results showed that DEA significantly inhibited the proliferation and viability of HeLa cells and induced apoptosis in vitro in dose-dependent and also in cell cycle-dependent manner because DEA induced G0/G1 phase arrest in the HeLa cell line. We found that DEA treatment downregulated the expression of phospho-Akt and phospho-Bad. In addition, DEA could downregulate expression of Bcl-2, upregulate Bax, and induce cytochrome c release. Our results indicate that DEA might have significance as an anti-tumor agent against human cervical cancer.


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