scholarly journals Antiproliferative effect of extracts and fractions of the root of Terminalia avicennioides (Combretaceae) Guill and Perr. on HepG2 and Vero cell lines

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Hadiza Aliyu-Amoo ◽  
Hamza Ibrahim Isa ◽  
Emmanuel Mfotie Njoya ◽  
Lyndy Joy McGaw
Keyword(s):  
Medicinal Plant ◽  
Cell Viability ◽  
Vero Cell ◽  
Hepg2 Cell ◽  
Cell Lines ◽  
Cytotoxic Effect ◽  
Vero Cells ◽  
Antiproliferative Effect ◽  
Vero Cell Lines ◽  
Hepg2 Cell Lines

Abstract Background Terminalia avicennioides Guill and Perr (Combretaceae) is an important West African medicinal plant. The plant is used locally against microbes and parasites in both humans and animals and studies have demonstrated its cytotoxicity potential. Thus, this study was carried out to test the cytotoxic effect of the extracts and fractions of the root of the medicinal plant Terminalia avicennioides Guill and Perr (Combretaceae) in two different cell lines. Methods Methanol, ethanol, 30 % ethanol, hot water and cold water extracts and ethylacetate, hexane, chloroform, butanol and residual water fractions, were evaluated at 1000, 750, 500, 250, 100 and 50 µg/mL concentrations, with doxorubicin as positive control. The cells were incubated with the extracts for 48 h at 37 °C in a 5 % CO2 humidified incubator. The inhibition of cell viability, determined with the methyl blue thiazole tetrazolium bromide (MTT) assay, was used to assess the anti-proliferative effect of the extracts, in normal Vero Monkey kidney and human liver cancer (HepG2) cell lines. Results There was a concentration-dependent inhibition of cell viability in both the HepG2 and Vero cell lines. For HepG2 cells, antiproliferative effect was highest for the hexane fraction (viability ranged from 19.63 ± 1.10 % to 70.30 ± 1.78 % for 1000 and 50 µg/mL, respectively. For Vero cells, the highest antiproliferative effect, at 1000 µg/mL, was with hexane fraction (cell viability 21.37 ± 3.50 %), while at 50 µg/mL the chloroform fraction demonstrated the highest effect (viability of 86.10 ± 1.95 %). Conclusions The extracts and fractions from the root of Terminalia avicennioides have antiproliferative effect on the Vero and HepG2 cell lines tested. However, the extracts and fractions were not more toxic to the HepG2 than to the Vero cells. The cytotoxic effect of stem-bark and leaf extracts could be evaluated in the future to determine its anticancer potential.

scholarly journals Chemical Composition and Cytotoxic and Antibacterial Activities of the Essential Oil of Aloysia citriodora Palau Grown in Morocco

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Moulay Ali Oukerrou ◽  
Mounir Tilaoui ◽  
Hassan Ait Mouse ◽  
Inass Leouifoudi ◽  
Abdeslam Jaafari ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Cytotoxic Activity ◽  
Vero Cell ◽  
Cell Lines ◽  
Cytotoxic Effect ◽  
Mass Spectrometry Analysis ◽  
Gas Chromatography Mass Spectrometry ◽  
Agar Disc ◽  
Vero Cell Lines

The aim of this work is to investigate the in vitro cytotoxic and antibacterial effects of the essential oils of Aloysia citriodora Palau, harvested in different regions of Morocco. The chemical profile was established using gas chromatography-mass spectrometry analysis. The cytotoxic activity against P815, MCF7, and VERO cell lines as well as the normal human peripheral blood mononuclear cells (PBMCs) was evaluated using the MTT assay. Standard, ATCC, strains of bacteria (Escherichia coli, Staphylococcus aureus, and Pseudomonas aeruginosa) were cultivated in Muller Hinton media. Then, agar disc diffusion, minimum inhibitory concentrations (MICs), and minimal bactericidal concentrations (MBCs) were determined using microdilution method. The essential oils obtained were predominantly composed of β-spathulenol (15.61%), Ar-curcumene (14.15%), trans-caryophyllene oxide (14.14%), and neral (10.02%). The results of the assays showed that the cytotoxic effect of the essential oil of A. citriodora was high on P815 and moderate on MCF7 and on VERO cell lines. However, no cytotoxic effect was observed on PBMCs. On the other hand, essential oils showed a significant antimicrobial activity against both Gram-negative and Gram-positive bacteria. MICs ranged between 2.84 and 8.37 mg/ml. Essential oil of A. citriodora leaves possesses significant antibacterial effect and cytotoxic activity against tumor cell lines.

Melatonin can suppress the cytotoxic effects of chlorpyrifos on human HepG2 cell lines

2006 ◽  
Vol 25 (2) ◽  
pp. 47-55 ◽  
Author(s):  
F Gultekin ◽  
S Patat ◽  
H Akca ◽  
M Akdogan ◽  
I Altuntas
Keyword(s):  
Hepg2 Cell ◽  
Cell Lines ◽  
Hepg2 Cells ◽  
Cytotoxic Effect ◽  
Antioxidant Properties ◽  
Thiobarbituric Acid ◽  
Thiobarbituric Acid Reactive Substance ◽  
Dependent Manner ◽  
Tbars Level ◽  
Hepg2 Cell Lines

The cytotoxic effect of chlorpyrifos (CP) on human HepG2 cell lines and the protective role of melatonin were investigated. TD50 of CP for HepG2 cells was also determined. The viability of HepG2 cells decreased with CP treatment in a dose-dependent manner (P <0.05). Preincubation with melatonin prior to CP application caused an increase in cell viability (P <0.05). TD50 of CP for HepG2 was determined as 84.5 μg/mL. A 1-hour melatonin treatment caused a decrease in TD50 from 84.5 to 34.1 μg/mL. The level of thiobarbituric acid reactive substance (TBARS) and the activities of superoxide dismutase (SOD), glutathione peroxidase (GSH-Px) and catalase (CAT) were determined in cell lines with or without melatonin administration to find out the possible mechanism of melatonin. CP caused a significant decrease in SOD, GSH-Px and CAT activities and an increase in TBARS level (P <0.05). Pre-incubation of cells with melatonin prevented an increase in TBARS. Melatonin also reduced the CP-caused inhibition of the activities of GSH-Px and CAT (P <0.05). It was suggested that CP shows a cytotoxic effect on HepG2 cell lines and melatonin can suppress cytotoxicity caused by CP with its antioxidant properties. Melatonin also reduces TD50 of CP for HepG2 cell lines.

scholarly journals Cytotoxicity assessment of the stem bark of Tieghemella heckelii Pierre ex. A Chev. (Sapotaceae) towards Vero and RD human cancer Cell Lines

2017 ◽  
Vol 6 (1) ◽  
pp. 11-19
Author(s):  
Bertin Kipré Guédé ◽  
◽  
Aya Nathalie Guessennd Kouadio ◽  
Jules N’guessan. Kouadio ◽  
Mamidou Witabouna Koné ◽  
...  
Keyword(s):  
Mortality Rate ◽  
Cell Viability ◽  
Vero Cell ◽  
Cell Lines ◽  
Cancer Cell ◽  
Methanol Extract ◽  
Ethanol Extract ◽  
Stem Bark ◽  
Cancer Cell Lines ◽  
Vero Cell Lines

The present study aimed at investigating the cytotoxicity of the stem bark of Tieghemella heckelii Pierre ex. A Chev (Sapotaceae). For this purpose, plant extracts were put into contact separately with the different Vero and human RD cancer cell lines diluted in a 96 wells microplate after 24-hour incubation at 37°C. Thereafter, the absorbance was measured every 24 hour for two days, using Elisa reader spectrophotometer. The IC50 values obtained from multi-dose testing of ethanol extract against Vero cell lines ranged from 0.051 to 0.192 mg/mL. The results also showed Vero cell viability of 80.2%, and a mortality rate of 94.9% against RD cell lines whereas methanol extract displayed for the same experiment an IC50 ranging from 0.018 to 2.98 mg/mL with a cell viability of 67%, and a mortality rate of 95.6%. From these results, it could be concluded that the methanol extract of the stem bark showed higher cytotoxic activity towards RD cell lines. As for the ethanol extract, it showed significant non-cytotoxicity towards the Vero cell lines. In the light of this evidence, it can be claimed that the plant exhibited non-cytotoxic patterns against Vero cells and has anticancer potential.

P04.20 The role of YAP in Glioblastoma cell lines

2021 ◽  
Vol 23 (Supplement_2) ◽  
pp. ii22-ii23
Author(s):  
G Casati ◽  
L Giunti ◽  
A Iorio ◽  
A Marturano ◽  
I Sardi
Keyword(s):  
Cell Viability ◽  
Cell Lines ◽  
Western Blotting ◽  
Cytotoxic Effect ◽  
Target Genes ◽  
Hippo Pathway ◽  
Combined Treatment ◽  
Set Up ◽  
The Hippo Pathway

Abstract BACKGROUND Glioblastoma (GBM) is a primary human malignant brain tumor, the most common in adults. Several studies have highlighted the Hippo-pathway as a cancer signalling network. The Hippo pathway is an evolutionarily conserved signal cascade, which is involved in the control of organ growth. Dysregulations among this pathway have been found in lung, ovarian, liver and colorectal cancer. The key downstream effector of the Hippo-pathway is the Yes-associated protein (YAP); in the nucleus, its function as transcription co-activator is to interact with transcription factors, resulting in the expression of target genes involved in pro-proliferating and anti-apoptotic programs. MATERIAL AND METHODS Using western blotting analysis, we determined the nuclear expression of YAP on three GBM cell lines (U87MG, T98G and A172). To investigate which inhibitors against the Hippo-pathway were the most efficient, we performed a cytotoxic assay: we treated all the three cell lines with different inhibitors such as Verteporfin (VP), Cytochalasin D (CIT), Latrunculin A (LAT), Dobutamine (DOB) and Y27632. Afterwards, we performed a treatment using Doxorubicin (DOX) combined with the inhibitors, evaluating its cytotoxic effect on our cell lines, through cell viability experiments. More western blotting experiments were performed to investigate the oncogenic role of YAP at nucleus level. Furthermore, preliminary experiments have been conducted in order to investigate the apoptosis, senescence and autophagy modulation due to the Hippo-pathway. RESULTS We showed our cell lines express nuclear YAP. We assessed the efficiency of the main inhibitors against Hippo-pathway, proving that VP, LAT A and CIT show a strong cytostatic effect, linked to time increase; plus we saw a cytotoxic effect on T98G. The association of DOX with selected inhibitors is able to reduce cell viability and nuclear YAP expression rate in all three GBM lines. Finally, preliminary experiments were set up to assess how and if the mechanisms of apoptosis, autophagy and senescence were affected by the Hippo-pathway. The combination of DOX with inhibitors promotes resistance to apoptosis. CONCLUSION Our results show that nuclear YAP is present in all tumor lines, thus confirming that this molecular pathway is functioning in GBM lines. Nuclear YAP is more highly expressed after DOX administration. Moreover, the combined treatment (DOX with Hippo-pathway inhibitors) reduces both cell proliferation and viability, and increases the rate of apoptosis. Preliminary experiments on senescence and autophagy were used to determine the best Hippo-pathway inhibitor. These data demonstrate that the Hippo-pathway plays a crucial role in GBM proliferation and resistance to apoptosis. Inhibiting this pathway and in particular the transcription factor YAP, in association with DOX, might be an excellent therapeutic target.

scholarly journals Whole-Genome Sequences of Zika Virus FLR Strains after Passage in Vero or C6/36 Cells

2018 ◽  
Vol 6 (4) ◽  
Author(s):  
Lindsey A. Moser ◽  
Lauren M. Oldfield ◽  
Nadia Fedorova ◽  
Vinita Puri ◽  
Susmita Shrivastava ◽  
...  
Keyword(s):  
Vero Cell ◽  
Cell Lines ◽  
Virus Strain ◽  
Zika Virus ◽  
Whole Genome ◽  
Genome Sequences ◽  
Complete Genomes ◽  
Vero Cell Lines

ABSTRACT We report 26 complete genomes of Zika virus (ZIKV) isolated after passaging the Zika virus strain FLR in mosquito (C6/36) and mammalian (Vero) cell lines. The consensus ZIKV genomes we recovered show greater than 99% nucleotide identify with each other and with the FLR strain used as input.

Effect of Different Hydatid Cyst Molecules on Hela and Vero Cell Lines Growth In vitro

2013 ◽  
Vol 02 (01) ◽  
Author(s):  
Nasir Aref ◽  
Hedayatollah Shirzad ◽  
Morteza Yousefi ◽  
Hossein Yousofi.Darani
Keyword(s):  
Hydatid Cyst ◽  
Vero Cell ◽  
Cell Lines ◽  
Vero Cell Lines

scholarly journals Transcriptomic analysis of marine endophytic fungi extract identifies highly enriched anti-fungal fractions targeting cancer pathways in HepG2 cell lines

BMC Genomics ◽  
2020 ◽  
Vol 21 (1) ◽  
Author(s):  
Ethel Juliet Blessie ◽  
Wasco Wruck ◽  
Benaiah Annertey Abbey ◽  
Audrey Ncube ◽  
Nina Graffmann ◽  
...  
Keyword(s):  
Hepg2 Cell ◽  
Cell Lines ◽  
Endophytic Fungi ◽  
Transcriptomic Analysis ◽  
Cancer Pathways ◽  
Hepg2 Cell Lines ◽  
Anti Fungal
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