Resistance to growth inhibitory and apoptotic effects of phorbol ester and UCN-01 in aggressive cancer cell lines

2001 ◽  
Author(s):  
Mikhail Blagosklonny ◽  
Shannon Dixon ◽  
Robert Robey ◽  
William Figg
Keyword(s):  
Cell Lines ◽  
Cancer Cell ◽  
Phorbol Ester ◽  
Cancer Cell Lines ◽  
Growth Inhibitory ◽  
Aggressive Cancer ◽  
Apoptotic Effects

scholarly journals Modifications on the Tetrahydroquinoline Scaffold Targeting a Phenylalanine Cluster on GPER as Antiproliferative Compounds against Renal, Liver and Pancreatic Cancer Cells

2021 ◽  
Vol 14 (1) ◽  
pp. 49
Author(s):  
David Méndez-Luna ◽  
Loreley Araceli Morelos-Garnica ◽  
Juan Benjamín García-Vázquez ◽  
Martiniano Bello ◽  
Itzia Irene Padilla-Martínez ◽  
...  
Keyword(s):  
Binding Site ◽  
Cell Lines ◽  
Cancer Cell ◽  
Inhibitory Activity ◽  
In Silico ◽  
Cancer Cell Lines ◽  
Pancreatic Cancer Cells ◽  
Growth Inhibitory ◽  
Growth Inhibitory Activity ◽  
New Compounds

The implementation of chemo- and bioinformatics tools is a crucial step in the design of structure-based drugs, enabling the identification of more specific and effective molecules against cancer without side effects. In this study, three new compounds were designed and synthesized with suitable absorption, distribution, metabolism, excretion and toxicity (ADME-tox) properties and high affinity for the G protein-coupled estrogen receptor (GPER) binding site by in silico methods, which correlated with the growth inhibitory activity tested in a cluster of cancer cell lines. Docking and molecular dynamics (MD) simulations accompanied by a molecular mechanics/generalized Born surface area (MMGBSA) approach yielded the binding modes and energetic features of the proposed compounds on GPER. These in silico studies showed that the compounds reached the GPER binding site, establishing interactions with a phenylalanine cluster (F206, F208 and F278) required for GPER molecular recognition of its agonist and antagonist ligands. Finally, a 3-(4,5-dimethylthiazol-2-yl)2,5-diphenyltetrazolium bromide (MTT) assay showed growth inhibitory activity of compounds 4, 5 and 7 in three different cancer cell lines—MIA Paca-2, RCC4-VA and Hep G2—at micromolar concentrations. These new molecules with specific chemical modifications of the GPER pharmacophore open up the possibility of generating new compounds capable of reaching the GPER binding site with potential growth inhibitory activities against nonconventional GPER cell models.

Antiproliferative and apoptotic effects of compounds from the flower of Mammea siamensis (Miq.) T. Anders. on human cancer cell lines

2013 ◽  
Vol 23 (1) ◽  
pp. 158-162 ◽  
Author(s):  
Nguyen Huu Tung ◽  
Takuhiro Uto ◽  
Ayana Sakamoto ◽  
Yuka Hayashida ◽  
Yuuki Hidaka ◽  
...  
Keyword(s):  
Cell Lines ◽  
Cancer Cell ◽  
Human Cancer ◽  
Cancer Cell Lines ◽  
Human Cancer Cell ◽  
Human Cancer Cell Lines ◽  
Apoptotic Effects

Novel thalidomide analogs: Anti-angiogenic and apoptotic effects on Hep-G2 and MCF-7 cancer cell lines

2014 ◽  
Vol 4 (3) ◽  
pp. 179-189 ◽  
Author(s):  
Roba Talaat ◽  
Waheba El-Sayed ◽  
Hussein Agwa ◽  
Amira Gamal-Eldeen ◽  
Shaden Moawia ◽  
...  
Keyword(s):  
Cell Lines ◽  
Cancer Cell ◽  
Cancer Cell Lines ◽  
Hep G2 ◽  
Apoptotic Effects ◽  
Mcf 7

scholarly journals In VitroGrowth Inhibitory Activities of Natural Products from Irciniid Sponges against Cancer Cells: A Comparative Study

2016 ◽  
Vol 2016 ◽  
pp. 1-6
Author(s):  
Yosr BenRedjem Romdhane ◽  
Monia Elbour ◽  
Marianna Carbone ◽  
Maria Letizia Ciavatta ◽  
Margherita Gavagnin ◽  
...  
Keyword(s):  
Cell Lines ◽  
Cancer Cell ◽  
Antimicrobial Properties ◽  
Human Tumor ◽  
Cancer Cell Lines ◽  
Marine Sponges ◽  
Inhibitory Effects ◽  
Experimental Conditions ◽  
Growth Inhibitory

Marine sponges of the Irciniidae family contain both bioactive furanosesterterpene tetronic acids (FTAs) and prenylated hydroquinones (PHQs). Both classes of compounds are known for their anti-inflammatory, antioxidant, and antimicrobial properties and known to display growth inhibitory effects against various human tumor cell lines. However, the different experimental conditions of the reportedin vitrobioassays, carried out on different cancer cell lines within separate studies, prevent realistic actual discrimination between the two classes of compounds from being carried out in terms of growth inhibitory effects. In the present work, a chemical investigation of irciniid sponges from Tunisian coasts led to the purification of three known FTAs and three known PHQs. Thein vitrogrowth inhibitory properties of the six purified compounds have been evaluated in the same experiment in a panel of five human and one murine cancer cell lines displaying various levels of sensitivity to proapoptotic stimuli. Surprisingly, FTAs and PHQs elicited distinct profiles of growth inhibitory-responses, differing by one to two orders of magnitude in favor of the PHQs in all cell lines. The obtained comparative results are discussed in the light of a better selection of drug candidates from natural sources.

Anticancer and antioxidant studies of the methanol extract and fractions of Conyza sumatrensis (retz.) E. H. Walker (asteraceae

2020 ◽  
Vol 23 ◽  
pp. 77-82
Author(s):  
E.O. Ikpefan ◽  
B.A. Ayinde ◽  
B.A. Mudassar ◽  
Ahsana Dar Farooq
Keyword(s):  
Cell Lines ◽  
Cancer Cell ◽  
Antioxidant Activities ◽  
Cancer Cell Lines ◽  
Total Phenolic ◽  
Chloroform Fraction ◽  
Aqueous Fraction ◽  
Growth Inhibitory ◽  
Mcf 7

The in vitro antiproliferative and antioxidant studies of the leaf extract and fractions of Conyza sumatrensis was investigated by applying the Sulforhodamine-B and 2, 2-diphenyl-1-picrylhydrazyl assays (DPPH-RSA) respectively. While the antiproliferative activity was carried out at 1-250 and 1-100 μg/ mL for the extract and fractions against breast (MCF-7) and lung (NCI-H460) cancer cell lines, the antioxidant study was conducted using DPPH at 31.25 -500 μg/ mL with the total phenolic and flavonoid contents calculated as well with reference to quercetin and gallic acid respectively. The extract and fractions were observed to elicit cytotoxic and growth inhibitory effects against breast (MCF-7) and lung cancer cell lines (NCI-H460) respectively. At 250 μg/mL, the extract of C. sumatrensis gave cytotoxicity of –1.76 ± 0.20 % against MCF-7 cell lines and inhibited growth of NCI-H460 at +94.40 ± 1.0 % respectively. While the chloroform fraction at 100 μg/mL gave -5.38 ± 0.33 % and 91 ± 1.61 % against MCF-7 and NCI-H460 cell lines, the aqueous fraction was observed to be inactive. For the DPPH-RSA activity, the chloroform fraction demonstrated an IC50 value of 125.5 μg/ mL compare to quercetin at 62.5 μg/ mL. The bioactivities were more pronounced in the chloroform fraction. This work has shown that C.  sumatrensis has antiproliferative and antioxidant activities which could be tied to the secondary metabolites present in the plant.

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