scholarly journals Baicalein-rich fraction of Oroxylum indicum triggers mitochondrialmediated apoptosis pathway through MAPK transduction in cervical cancer cells

2021 ◽  
Vol 17 (1) ◽  
pp. 39-43
Author(s):  
Nurul Hidayah Wahab ◽  
Nor Fazila Che Mat

Baicalein was proved to have an apoptotic effect on a wide range of cancer cells in numerous studies. In this study, the apoptotic effect of baicalein-rich fraction from Oroxylum indicum leaves on human cervical cancer cells (SiHa and HeLa) were investigated. In this case, BRF-induced cell death was regulated by the activation of JNK/p38 and deactivation of ERK. Apart from that, BRF was able to trigger mitochondrial-mediated apoptosis pathway by downregulating Bcl-2 as well as upregulating Bax, caspase-9 and caspase-3. Indeed, MAPK transduction was found to be involved in BRF action in modulating mitochondrial Bcl-2 family, Bcl-2 and Bax. In SiHa cells, ERK and p38 pathway regulated BRF stimulation on mitochondrial-mediated pathway. Yet, BRF-induced this apoptosis pathway in ERK/JNK/p38-dependent manner in HeLa cells. Therefore, BRF induced and augmented the cell death of human cervical cancer cells through MAPK transduction.

2018 ◽  
Vol 2018 ◽  
pp. 1-12 ◽  
Author(s):  
Ebtesam S. Al-Sheddi ◽  
Nida N. Farshori ◽  
Mai M. Al-Oqail ◽  
Shaza M. Al-Massarani ◽  
Quaiser Saquib ◽  
...  

In this study, silver nanoparticles (AgNPs) were synthesized using aqueous extract of Nepeta deflersiana plant. The prepared AgNPs (ND-AgNPs) were examined by ultraviolet-visible spectroscopy, Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscope (SEM), and energy dispersive spectroscopy (EDX). The results obtained from various characterizations revealed that average size of synthesized AgNPs was 33 nm and in face-centered-cubic structure. The anticancer potential of ND-AgNPs was investigated against human cervical cancer cells (HeLa). The cytotoxic response was assessed by 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT), neutral red uptake (NRU) assays, and morphological changes. Further, the influence of cytotoxic concentrations of ND-AgNPs on oxidative stress markers, reactive oxygen species (ROS) generation, mitochondrial membrane potential (MMP), cell cycle arrest and apoptosis/necrosis was studied. The cytotoxic response observed was in a concentration-dependent manner. Furthermore, the results also showed a significant increase in ROS and lipid peroxidation (LPO), along with a decrease in MMP and glutathione (GSH) levels. The cell cycle analysis and apoptosis/necrosis assay data exhibited ND-AgNPs-induced SubG1 arrest and apoptotic/necrotic cell death. The biosynthesized AgNPs-induced cell death in HeLA cells suggested the anticancer potential of ND-AgNPs. Therefore, they may be used to treat the cervical cancer cells.


2004 ◽  
Vol 64 (24) ◽  
pp. 8960-8967 ◽  
Author(s):  
Young-Hee Kang ◽  
Min-Jung Yi ◽  
Min-Jung Kim ◽  
Moon-Taek Park ◽  
Sangwoo Bae ◽  
...  

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.


2006 ◽  
Vol 34 (03) ◽  
pp. 401-408 ◽  
Author(s):  
Jong-Seok Yoon ◽  
Jung-Chul Seo ◽  
Sang-Won Han

Pinelliae Rhizoma has been used traditionally in Korea to promote the liver Qi activity and the function of the digestive system. We investigated whether the Pinelliae Rhizoma herbal-acupuncture solution (PRHS) would induce cell-death on SNU-17, human cervical cancer cells. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay was used to investigate the cytotoxicity of PRHS. The cell death was identified as apoptosis with 4, 6-diamidineo-2-phenylindole (DAPI) staining, and terminal deoxy-nucleotidyl transferase (TdT)-mediated dUTP nick end labeling (TUNEL) assay. PRHS could induce apoptosis of SNU-17 via Bax-related caspase-3 activation. The expressions of both Bax, a pro-apoptotic gene, and caspase-3, an apoptotic gene, were increased. The results might provide the experimental data for the clinical use of Pinelliae Rhizoma on cervical cancer.


2018 ◽  
Vol 46 (1) ◽  
pp. 322-334 ◽  
Author(s):  
Chia-Liang Lin ◽  
Chien-Hsing Lee ◽  
Chien-Min Chen ◽  
Chun-Wen Cheng ◽  
Pei-Ni Chen ◽  
...  

Background/Aims: Protodioscin (PD) is a steroidal saponin with anti-cancer effects on a number of cancer cells, but the anti-tumor effects and mechanism of action of PD on human cervical cancer cells is unclear. Methods: We determined cell viability using the MTT assay. Cell death, mitochondrial membrane potential (MMP), intracellular reactive oxygen species (ROS) generation, and endoplasmic reticulum (ER) stress were measured on a flow cytometry. Caspase activation, ER stress, and MMP-dependent apoptosis proteins in cervical cancer cells in response to PD were determined by Western blot analysis. The ability of ATF4 binding to ChIP promoter was measured using the ChIP assay. Results: We demonstrated that PD inhibits cell viability, causes a loss of mitochondrial function, and induces apoptosis, as evidenced by up-regulation of caspase-8, -3, -9, -PARP, and Bax activation, and down-regulation of Bcl-2 expression. PD was shown to induce ROS and the ER stress pathway, including GRP78, p-eIF-2α, ATF4, and CHOP. Pre-treatment with NAC, a ROS production inhibitor, significantly reduced ER stress and apoptosis-related proteins induced by PD. Transfection of GRP78/CHOP-siRNA effectively inhibited PD-induced ER stress-dependent apoptosis. Moreover, treatment with PD significantly increased p38 and JNK activation. Co-administration of a JNK inhibitor (SP600125) or p38 inhibitor (SB203580) abolished cell death and ER stress effects during PD treatment. In addition, PD induced the expression of nuclear ATF4 and CHOP, as well as the binding ability of ATF4 to the CHOP promoter. Conclusion: Our results suggest that PD is a promising therapeutic agent for the treatment of human cervical cancer.


2015 ◽  
Vol 11 (1) ◽  
pp. 43
Author(s):  
Shu-Hong Hu ◽  
Hui Yu ◽  
Xue-Qin Gong ◽  
Ying-Hong Zhang

<p class="Abstract">The aim of the current investigation was to design, synthesize and demonstrate the anticancer and apoptotic activity of trifluoromethyl-phenyl-triazolyl derivative of beta-bisabolol (TTB) in ME-180 human cervical cancer cells.  MTT and clonogenic assays were used to evaluate the cell viability and colony formation tendencies of the cells respectively. Phase contrast and fluorescence microscopic investigations were used to evaluate the effect of TTB on cellular morphology and apoptosis. Flow cytometric analysis using fluorescent CM-DCFH2-DA were used to study the effect of TTB on reactive oxygen species (ROS) formation. The results revealed that TTB significantly inhibited the proliferation of ME-180 human cervical cancer cells in a time-dependent as well as dose-dependent manner. TTB has the capacity to inhibit both anchorage dependent as well as anchorage independent growth of ME-180 cervical cancer cells. TTB-treated cells revealed chromatin condensation, fragmented nuclei and nuclear shrinkage. A 3-fold increase of ROS production was seen after 72 μM TTB treatment.</p><p><strong><br /></strong></p><p><strong>VIDEO CLIPS</strong></p><p><a href="https://www.youtube.com/v/9yrPL3uy6Ls">Phase contrast microscopic study:</a>  2 min</p><p> </p>


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