scholarly journals Cytotoxicity and Modes of Action of the Methanol Extracts of Six Cameroonian Medicinal Plants against Multidrug-Resistant Tumor Cells

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Victor Kuete ◽  
Aimé G. Fankam ◽  
Benjamin Wiench ◽  
Thomas Efferth
Keyword(s):  
Cell Cycle ◽  
Medicinal Plants ◽  
Cell Lines ◽  
Cancer Cell ◽  
Cancer Cell Lines ◽  
Multidrug Resistant ◽  
Cycle Arrest ◽  
Enhanced Production ◽  
Resazurin Assay ◽  
Induced Apoptosis

Introduction. The present study aims at evaluating the cytotoxicity of twelve parts from six Cameroonian medicinal plants on sensitive and drug-resistant cancer cell lines. We also studied the mode of action of the most active plants,Gladiolus quartinianus,Vepris soyauxii, andAnonidium mannii.Methods. The cytotoxicity of the extracts was determined using a resazurin assay. Flow cytometry was used for cell-cycle analysis and detection of apoptosis, analysis of mitochondrial membrane potential (MMP), and measurement of reactive oxygen species (ROS).Results. At 40 g/mL, three extracts showed a growth of CCRF-CEM leukemia cells by less than 50%. This includes the extracts fromG. quartinianus(GQW; 25.69%),Vepris soyauxiileaves (VSL; 29.82%), andAnonidium manniileaves (AML; 31.58%). The lowest IC50values below 30 μg/mL were obtained with GQW, AML and VSL against 7/9, 8/9, and 9/9 tested cancer cell lines, respectively. The lowest IC50values for each plant were 4.09 μg/mL, and 9.14 μg/mL (against U87MG.ΔEGFRcells), respectively, for VSL and AML and 10.57 μg/mL (against CCRF-CEM cells) for GQW. GQW induced cell cycle arrest between G0/G1 and S phases, whilst VSL and AML induced arrest in G0/G1. All three extracts induced apoptosis in CCRF-CEM cells by loss of MMP, whilst AML also enhanced production of ROS.Conclusion. The three active plants may be a source for the development of new anticancer drugs.

scholarly journals Thymoquinone-Loaded Nanostructured Lipid Carrier Exhibited Cytotoxicity towards Breast Cancer Cell Lines (MDA-MB-231 and MCF-7) and Cervical Cancer Cell Lines (HeLa and SiHa)

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Wei Keat Ng ◽  
Latifah Saiful Yazan ◽  
Li Hua Yap ◽  
Wan Abd Ghani Wan Nor Hafiza ◽  
Chee Wun How ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cell Cycle ◽  
Cervical Cancer ◽  
Cell Cycle Arrest ◽  
Cell Lines ◽  
Cancer Cell ◽  
Cancer Cell Lines ◽  
Nanostructured Lipid Carrier ◽  
Cycle Arrest ◽  
Mcf 7

Thymoquinone (TQ) has been shown to exhibit antitumor properties. Thymoquinone-loaded nanostructured lipid carrier (TQ-NLC) was developed to improve the bioavailability and cytotoxicity of TQ. This study was conducted to determine the cytotoxic effects of TQ-NLC on breast cancer (MDA-MB-231 and MCF-7) and cervical cancer cell lines (HeLa and SiHa). TQ-NLC was prepared by applying the hot high pressure homogenization technique. The mean particle size of TQ-NLC was 35.66 ± 0.1235 nm with a narrow polydispersity index (PDI) lower than 0.25. The zeta potential of TQ-NLC was greater than −30 mV. Polysorbate 80 helps to increase the stability of TQ-NLC. Differential scanning calorimetry showed that TQ-NLC has a melting point of 56.73°C, which is lower than that of the bulk material. The encapsulation efficiency of TQ in TQ-NLC was 97.63 ± 0.1798% as determined by HPLC analysis. TQ-NLC exhibited antiproliferative activity towards all the cell lines in a dose-dependent manner which was most cytotoxic towards MDA-MB-231 cells. Cell shrinkage was noted following treatment of MDA-MB-231 cells with TQ-NLC with an increase of apoptotic cell population (P<0.05). TQ-NLC also induced cell cycle arrest. TQ-NLC was most cytotoxic towards MDA-MB-231 cells. It induced apoptosis and cell cycle arrest in the cells.

scholarly journals Apoptosis Induction, Cell Cycle Arrest and in Vitro Anticancer Activity of Gonothalamin in a Cancer Cell Lines

2012 ◽  
Vol 13 (10) ◽  
pp. 5131-5136 ◽  
Author(s):  
Aied M. Alabsi ◽  
Rola Ali ◽  
Abdul Manaf Ali ◽  
Sami Abdo Radman Al-Dubai ◽  
Hazlan Harun ◽  
...  
Keyword(s):  
Cell Cycle ◽  
Anticancer Activity ◽  
Cell Cycle Arrest ◽  
Cell Lines ◽  
Cancer Cell ◽  
Cancer Cell Lines ◽  
Apoptosis Induction ◽  
Cycle Arrest

Oleiferasaponin C6 from the seeds of Camellia oleifera Abel.: a novel compound inhibits proliferation through inducing cell-cycle arrest and apoptosis on human cancer cell lines in vitro

RSC Advances ◽  
2016 ◽  
Vol 6 (94) ◽  
pp. 91386-91393 ◽  
Author(s):  
Jianfa Zong ◽  
Dongxu Wang ◽  
Weiting Jiao ◽  
Liang Zhang ◽  
Guanhu Bao ◽  
...  
Keyword(s):  
Cell Cycle ◽  
Cell Cycle Arrest ◽  
Cell Lines ◽  
Cancer Cell ◽  
Human Cancer ◽  
Cancer Cell Lines ◽  
Camellia Oleifera ◽  
Human Cancer Cell Lines ◽  
Cycle Arrest

Oleiferasaponin C6 was isolated from Camellia oleifera Abel. and inhibits proliferation through inducing cell-cycle arrest and apoptosis on cancer cell lines in vitro.

scholarly journals Cytotoxic Constituents of the Bark of Hypericum roeperianum towards Multidrug-Resistant Cancer Cells

2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Michel-Gael F. Guefack ◽  
Francois Damen ◽  
Armelle T. Mbaveng ◽  
Simplice Beaudelaire Tankeo ◽  
Gabin T. M. Bitchagno ◽  
...  
Keyword(s):  
Cancer Cells ◽  
Cell Lines ◽  
Cancer Cell ◽  
Colon Adenocarcinoma ◽  
Cancer Cell Lines ◽  
Multidrug Resistant ◽  
Leukemia Cells ◽  
Ros Production ◽  
Cytotoxic Effects ◽  
Induced Apoptosis

The global cancer burden remains a serious concern with the alarming incidence of one in eight men and one in eleven women dying in developing countries. This situation is aggravated by the multidrug resistance (MDR) of cancer cells that hampers chemotherapy. In this study, the cytotoxicity of the methanol extract (HRB), fractions (HRBa, HRBb, and HRBa1-5), and compounds from the bark of Hypericum roeperianum (HRB) was evaluated towards a panel of 9 cancer cell lines. The mode of action of the HRB and trichadonic acid (1) was also studied. Column chromatography was applied to isolate the constituents of HRB. The cytotoxicity of botanicals and phytochemicals was evaluated by the resazurin reduction assay (RRA). Caspase-Glo assay was used to evaluate the activity of caspases, and reactive oxygen species (ROS) (H2DCFH-DA) were assessed by flow cytometry. Phytochemicals isolated from HRB were trichadonic acid (1), fridelan-3-one (2), 2-hydroxy-5-methoxyxanthone (3), norathyriol (4), 1,3,5,6-tetrahydroxyxanthone (5), betulinic acid (6), 3′-hydroxymethyl-2′-(4″-hydroxy-3″,5″-dimethoxyphenyl)-5′,6′:5,6-(6,8-dihydroxyxanthone)-1′,4′-dioxane (7), and 3′-hydroxymethyl-2′-(4″-hydroxy-3″,5″-dimethoxyphenyl)-5′,6′:5,6-(xanthone)-1′,4′-dioxane (8). Botanicals HRB, HRBa, HRBa2-4, HRBb, and doxorubicin displayed cytotoxic effects towards the 9 tested cancer cell lines. The recorded IC50 values ranged from 11.43 µg/mL (against the P-glycoprotein (gp)-overexpressing CEM/ADR5000 leukemia cells) to 26.75 µg/mL (against HCT116 (p53+/+) colon adenocarcinoma cells) for the crude extract HRB. Compounds 1, 5, and doxorubicin displayed cytotoxic effects towards the 9 tested cancer cell lines with IC50 values varying from 14.44 µM (against CCRF-CEM leukemia cells) to 44.20 µM (against the resistant HCT116 (p53−/−) cells) for 1 and from 38.46 µM (against CEM/ADR5000 cells) to 112.27 µM (against the resistant HCT116 (p53−/−) cells) for 5. HRB and compound 1 induced apoptosis in CCRF-CEM cells. The apoptotic process was mediated by enhanced ROS production for HRB or via caspases activation and enhanced ROS production for compound 1. This study demonstrated that Hypericum roeperianum is a potential source of cytotoxic phytochemicals such as trichadonic acid and could be further exploited in cancer chemotherapy.

Naphthoquinone rich Onosma visianii Clem (Boraginaceae) root extracts induce apoptosis and cell cycle arrest in HCT-116 and MDA-MB-231 cancer cell lines

2017 ◽  
Vol 32 (22) ◽  
pp. 2712-2716 ◽  
Author(s):  
Milena D. Vukic ◽  
Nenad L. Vukovic ◽  
Ana D. Obradovic ◽  
Suzana Lj. Popovic ◽  
Milan M. Zaric ◽  
...  
Keyword(s):  
Cell Cycle ◽  
Cell Cycle Arrest ◽  
Cell Lines ◽  
Cancer Cell ◽  
Cancer Cell Lines ◽  
Root Extracts ◽  
Cycle Arrest ◽  
Hct 116

scholarly journals Degalactotigonin, a Steroidal Glycoside from Solanum nigrum, Induces Apoptosis and Cell Cycle Arrest via Inhibiting the EGFR Signaling Pathways in Pancreatic Cancer Cells

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Hoang Le Tuan Anh ◽  
Phuong Thao Tran ◽  
Do Thi Thao ◽  
Duong Thu Trang ◽  
Nguyen Hai Dang ◽  
...  
Keyword(s):  
Cell Cycle ◽  
Pancreatic Cancer ◽  
Cell Cycle Arrest ◽  
Cell Lines ◽  
Cancer Cell ◽  
Cancer Cell Lines ◽  
Solanum Nigrum ◽  
Dependent Manner ◽  
Concentration Dependent Manner ◽  
Cycle Arrest

Degalactotigonin (1) and three other steroidal compounds solasodine (2), O-acetyl solasodine (3), and soladulcoside A (4) were isolated from the methanolic extract of Solanum nigrum, and their chemical structures were elucidated by spectroscopic analyses. The isolated compounds were evaluated for cytotoxic activity against human pancreatic cancer cell lines (PANC1 and MIA-PaCa2) and lung cancer cell lines (A549, NCI-H1975, and NCI-H1299). Only degalactotigonin (1) showed potent cytotoxicity against these cancer cell lines. Compound 1 induced apoptosis in PANC1 and A549 cells. Further study on its mechanism of action in PANC1 cells demonstrated that 1 significantly inhibited EGF-induced proliferation and migration in a concentration-dependent manner. Treatment of PANC1 cells with degalactotigonin induced cell cycle arrest at G0/G1 phase. Compound 1 induced downregulation of cyclin D1 and upregulation of p21 in a time- and concentration-dependent manner and inhibited EGF-induced phosphorylation of EGFR, as well as activation of EGFR downstream signaling molecules such as Akt and ERK.

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