Chemical constituents and antiproliferative effects of cultured Mougeotia nummuloides and Spirulina major against cancerous cell lines

2016 ◽  
Vol 71 (3-4) ◽  
pp. 87-92 ◽  
Author(s):  
Ramazan Erenler ◽  
Koksal Pabuccu ◽  
Ayse Sahin Yaglioglu ◽  
Ibrahim Demirtas ◽  
Fatih Gul

AbstractIn this study, the effect ofMougeotia nummuloidesandSpirulina majoron Vero cells (African green monkey kidney), C6 cells (rat brain tumor cells) and HeLa cells (human uterus carcinoma) was investigatedin vitro. The antiproliferative effect of the methanol extract ofM. nummuloidesandS. majorcompared with 5-fluorourasil (5-FU) and cisplatin was tested at various concentrations using the BrdU Cell Proliferation ELISA. BothM. nummuloidesandS. majorextracts significantly inhibited the proliferation of Vero, HeLa and C6 cancer cell lines with IC50and IC75values. TheM. nummuloidesextract exhibited higher activity than 5-FU and cisplatin on Vero and C6 cells at high concentrations. TheS. majorextract revealed better antifproliferative activity than standards against Vero cells at 500 μg/mL. The compounds of methanol extracts were determined by GC-MS after the silylation process. Trehalose, monostearin and 1-monopalmitin were detected as major products in theM. nummuloidesextract where as in theS. majorextract; monostearin, 1-monopalmitin and hexyl alcohol were the main constituents.

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Ibrahim Demirtas ◽  
Ayse Sahin

Several species ofCentaurea, biennial (or more rarely perennial) plants which belong to the Asteraceae family, possess medicinal properties and are currently used in phytotherapy. In the present study, antiproliferative activity of hexane extract from stems and roots ofCentaurea carduiformisDC. subsp.carduiformisvar.carduiformis(CCS and CCR) on Vero cells (African green monkey kidney), C6 cells (Rat Brain tumor cells), and HeLa cells (human uterus carcinoma) was investigatedin vitro. Antiproliferative effect of the extract was tested at 500 μg/mL and 1000 μg/mL using BrDu Cell Proliferation ELISA. The hexane extract was significantly inhibited proliferation of Vero, HeLa, and C6 cancer cell lines with absorbance values. The extract of CCS and CCR showed the highest activity against the Vero, HeLa, and C6 cell lines at 500 μg/mL and 1000 μg/mL.


2011 ◽  
Vol 6 (6) ◽  
pp. 1934578X1100600 ◽  
Author(s):  
Eufemio Moreno ◽  
Titto Varughese ◽  
Carmenza Spadafora ◽  
A. Elizabeth Arnold ◽  
Phyllis D. Coley ◽  
...  

Chemical investigation of a new endophytic fungus, Mycosphaerella sp. nov. strain F2140, associated with the foliage of the plant Psychotria horizontalis (Rubiaceae) in Panama, resulted in the isolation of cercosporin (1) and a new cercosporin analog (3) as the major components. The structures of minor compounds in the extract were elucidated by detailed spectroscopic analysis as 2-(2-butyl)-6-ethyl-3-hydroxy-6-methylcyclohex-2-ene-1, 5-dione (4), 3-(2-butyl)-6-ethyl-5-hydroxy-2-methoxy-6-methyl-cyclohex-2-enone (5), and an isomer of 5 (6). To study the influence of the hydroxy groups on the antiparasitic activity of cercosporin, compound 1 was acetylated to obtain derivative 2. The isolated compounds 1-6 were tested in vitro to determine their antiparasitic activity against the causal agents of malaria ( Plasmodium falciparum), leishmaniasis ( Leishmania donovani), and Chagas disease ( Trypanosoma cruzi). Cytotoxicity and potential anticancer activity of these compounds were evaluated using mammalian Vero cells and MCF7 cancer cell lines, respectively. Compounds 1 and 2 displayed high potency against L. donovani (IC50 0.46 and 0.64 μM), T. cruzi (IC50 1.08 and 0.78 μM), P. falciparum (IC50 1.03 and 2.99 μM), and MCF7 cancer cell lines (IC50 4.68 and 3.56 μM). Compounds 3-6 were not active in these assays at a concentration of 10 μg/mL.


Author(s):  
Zeinab Abedian ◽  
Niloofar Jenabian ◽  
Ali Akbar Moghadamnia ◽  
Ebrahim Zabihi ◽  
Roghayeh Pourbagher ◽  
...  

Objective/ Background: Cancer is still the most common cause of morbidity in world and new powerful anticancer agents without severe side effects from natural sources is important. Methods: The evaluation of cytotoxicity and apoptosis induction was carried out in MCF-7,HeLa and Saos-2 as cancerous cell lines with different histological origin and human fibroblast served as control normal cell. The cells were treated with different concentrations of chitosan and the cytotoxicity was determined using MTT assay after 24, 48 and 72 h .The mode of death was evaluated by flow cytometry . Results: While both types of chitosan showed significant concentration-dependently cytotoxic effects against the three cancerous cell lines, fibroblast cells showed somehow more compatibility with chitosan. On the other hand, there were no significant differences between LMWC and HMWC cytotoxicity in all cell lines. The flow cytometry results showed the apoptosis pattern of death more in Saos-2 and HeLa while necrosis was more observable with MCF7. Also higher viability with both types of chitosan was seen in fibroblast as normal cells Conclusion: Chitosan shows anticancerous effect against 3 cancerous cell lines, while it is compatible with normal diploid fibroblast cells. Furthermore, it seems that the molecular weight of chitosan does not affect its anticancerous property.


2018 ◽  
Vol 93 (2) ◽  
Author(s):  
Jonathan L. Miller ◽  
Darin J. Weed ◽  
Becky H. Lee ◽  
Suzanne M. Pritchard ◽  
Anthony V. Nicola

ABSTRACTThe alphaherpesvirus pseudorabies virus (PRV) is the causative agent of pseudorabies, a disease of great economic and welfare importance in swine. Other alphaherpesviruses, including herpes simplex virus (HSV), utilize low-pH-mediated endocytosis to enter a subset of cell types. We investigated whether PRV used this entry pathway in multiple laboratory model cell lines. Inhibition of receptor-mediated endocytosis by treatment with hypertonic medium prevented PRV entry. PRV entry into several cell lines, including porcine kidney (PK15) cells and African green monkey kidney (Vero) cells, was inhibited by noncytotoxic concentrations of the lysosomotropic agents ammonium chloride and monensin, which block the acidification of endosomes. Inactivation of virions by acid pretreatment is a hallmark of viruses that utilize a low-pH-mediated entry pathway. Exposure of PRV virions to pH 5.0 in the absence of host cell membranes reduced entry into PK15 and Vero cells by >80%. Together, these findings suggest that endocytosis followed by fusion with host membranes triggered by low endosomal pH is an important route of entry for PRV.IMPORTANCEPRV is a pathogen of great economic and animal welfare importance in many parts of the world. PRV causes neurological, respiratory, and reproductive disorders, often resulting in mortality of young and immunocompromised animals. Mortality, decreased production, and trade restrictions result in significant financial losses for the agricultural industry. Understanding the molecular mechanisms utilized by PRV to enter host cells is an important step in identifying novel strategies to prevent infection and spread. A thorough understanding of these mechanisms will contribute to a broader understanding of alphaherpesvirus entry. Here, we demonstrate PRV entry into multiple model cell lines via a low-pH endocytosis pathway. Together, these results provide a framework for elucidating the early events of the PRV replicative cycle.


2017 ◽  
Vol 12 (9) ◽  
pp. 1934578X1701200
Author(s):  
Mohamad A. Mahdzir ◽  
Jamil A. Shilpi ◽  
Norfaizah Mahmud ◽  
Sujatha Ramasamy ◽  
Khalijah Awang

A phytochemical study on the bark of Walsura pinnata has led to the isolation of a new oleanane triterpene acid, 3-oxo-olean-9(11),12-dien-28-oic acid (1), together with nine known compounds (2–10). Their structures were established on the basis of the detailed spectroscopic analysis, including one- and two-dimensional NMR, ESI-MS and HR-ESI-MS techniques. Compounds 2, 3, 5, 6 and 8 were isolated from W. pinnata for the first time. Compounds 3 and 4 showed in vitro growth inhibitory activity against two human cancer cell lines MCF-7 and SK-OV-3 with IC50 values within the range of 8.85 - 18.28 μg/mL. To the best of our knowledge, this is the first report on the cytotoxic activity of compound 3 towards both cancer cell lines.


Cancers ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 3292
Author(s):  
Mari Palviainen ◽  
Kirsi Laukkanen ◽  
Zeynep Tavukcuoglu ◽  
Vidya Velagapudi ◽  
Olli Kärkkäinen ◽  
...  

Cancer alters cell metabolism. How these changes are manifested in the metabolite cargo of cancer-derived extracellular vesicles (EVs) remains poorly understood. To explore these changes, EVs from prostate, cutaneous T-cell lymphoma (CTCL), colon cancer cell lines, and control EVs from their noncancerous counterparts were isolated by differential ultracentrifugation and analyzed by nanoparticle tracking analysis (NTA), electron microscopy (EM), Western blotting, and liquid chromatography-mass spectrometry (LC-MS). Although minor differences between the cancerous and non-cancerous cell-derived EVs were observed by NTA and Western blotting, the largest differences were detected in their metabolite cargo. Compared to EVs from noncancerous cells, cancer EVs contained elevated levels of soluble metabolites, e.g., amino acids and B vitamins. Two metabolites, proline and succinate, were elevated in the EV samples of all three cancer types. In addition, folate and creatinine were elevated in the EVs from prostate and CTCL cancer cell lines. In conclusion, we present the first evidence in vitro that the altered metabolism of different cancer cells is reflected in common metabolite changes in their EVs. These results warrant further studies on the significance and usability of this metabolic fingerprint in cancer.


1983 ◽  
Vol 29 (12) ◽  
pp. 1731-1735 ◽  
Author(s):  
Clifford S. Mintz ◽  
Dean O. Cliver ◽  
R. H. Deibel

The attachment of Salmonella typhimurium strain PHL67342 to several mammalian tissue culture cell lines was investigated. Strain PHL67342 failed to attach in significant numbers to the Buffalo green monkey (BGM), swine testicular (ST), and HeLa cell lines. Significant attachment was observed with the Henle intestinal cell line. Log-phase cells of strain PHL67342 attached in greatest numbers to the Henle cells after 45 min of incubation at 37 °C. Attachment to the Henle cells was not affected by D-mannose or D-galactose, but was markedly inhibited by high concentrations of alpha-methyl-D-mannoside. Also, Salmonella lipopolysaccharide had no effect on the attachment of strain PHL67342 to the Henle cells. Fimbriae were not detected on the bacterial cells used in the adherence experiments. These results suggest that some bacterial factor(s) other than fimbriae and lipopolysaccharide mediate the attachment of strain PHL67342 to the Henle cells.


Parasitology ◽  
2005 ◽  
Vol 131 (5) ◽  
pp. 583-590 ◽  
Author(s):  
YING LEI ◽  
M. DAVEY ◽  
J. T. ELLIS

Attachment and invasion ofToxoplasma gondiiandNeospora caninumto a cat and a dog fibroblast cell line and 2 epithelial cell lines (a cat kidney and Vero) were comparedin vitrousing fluorescence antibody methodology. In addition, trypsin treatment of tachyzoites was used to determine whether protein molecules were essential to the process of invasion. The results show that bothT. gondiiandN. caninuminvaded all 4 cell lines, and that pre-treatment ofT. gondiitachyzoites with trypsin caused an increase in the ability of the parasite to invade these host cells. FurthermoreT. gondii, in comparison toN. caninum, invaded all 4 cell lines at greater levels. The results here support the conclusion that bothT. gondiiandN. caninumhave the ability to invade a variety of cell types including both dog and cat cells, and questions the utility of Vero cells as an appropriate host cell forin vitrostudies on the biology of these taxa.


2014 ◽  
Vol 15 (6) ◽  
pp. 1630-1643 ◽  
Author(s):  
Nirav Khatri ◽  
Dipesh Baradia ◽  
Imran Vhora ◽  
Mohan Rathi ◽  
Ambikanandan Misra

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