scholarly journals Synthesis and anticancer activity evaluation of η5-C5(CH3)4R ruthenium complexes bearing chelating diphosphine ligands

2015 ◽  
Vol 44 (7) ◽  
pp. 3265-3270 ◽  
Author(s):  
A. Rodríguez-Bárzano ◽  
R. M. Lord ◽  
A. M. Basri ◽  
R. M. Phillips ◽  
A. J. Blacker ◽  
...  

A series of ruthenium complexes with η5-C5(CH3)4R and diphosphine ligands have been synthesised and evaluated in vitro as anticancer agents. IC50 values in the nanomolar range have been obtained against two types of cell lines.

2022 ◽  
Author(s):  
Yunqiong Gu ◽  
Wen-Ying Shen ◽  
Qi-Yuan Yang ◽  
Zhen-Feng Chen ◽  
Hong Liang

Three ruthenium(III) complexes with pyrazolopyrimidine [Ru(Ln)(H2O)Cl3] (13, n=13) were prepared and characterized. These Ru(III) compounds show strong cytotoxicity against six cancer cell lines and low toxicity to normal human liver...


Molecules ◽  
2021 ◽  
Vol 26 (17) ◽  
pp. 5235
Author(s):  
Katharigatta N. Venugopala ◽  
Mohammed Habeebuddin ◽  
Bandar E. Aldhubiab ◽  
Afzal Haq Asif

Indoles derived from both natural sources or artificial synthetic methods have been known to interact with aryl hydrocarbon receptors (AhR), and exhibit anticancer activity. In light of these attractive properties, a series of hybrid molecules with structural features of indoles, i.e., those bearing a pyrazoline nucleus, were evaluated for their enhanced anticancer activity. The designed molecules were subjected to molecular docking in order to screen for potential AhR interacting compounds, and the identified indolyl dihydropyrazole derivatives were synthesized. The synthesized compounds were characterized, and their cytotoxicity was evaluated against four human cancer cell lines using the MTT assay. Based on the Glide g-score, H-bonding interactions and bonding energy of 20 candidate molecules were selected for further analysis from the 64 initially designed molecules. These candidate molecules have shown promising anti-proliferative activity against the cell lines tested. Among these candidate molecules, the compounds with hydroxy phenyl substitution on the pyrazoline ring have shown potent activity across all the tested cell lines. The designed scaffold was proven effective for screening potential candidate molecules with anticancer properties, and may be further optimized structurally for yielding the ideal anti-tumorigenic compound for the treatment of various cancers.


Author(s):  
Mamatha S. V ◽  
S. L. Belagali ◽  
Mahesh Bhat ◽  
Vijay M. Kumbar

Background: Coumarin and benzophenone possess a vast sphere of biological activities whereas thiazoles display various pharmacological properties. Hence we focused on incorporation of coumarin and thiazole core to the benzophenone skeleton to enhance the bioactivity anticipating their interesting biological properties. Objective: The objective of the current work is synthesis and biological evaluation of a novel series of coumarin fused thiazole derivatives. Methods: A novel series of Coumarin conjugated thiazolyl acetamide hybrid derivatives were synthesized by multistep reaction sequence and were characterized by the FT-IR, LCMS and NMR spectral techniques. The newly synthesized compounds were screened for anticancer activity by in-silico and in-vitro methods. The cytotoxicity of the synthesized unique compounds had been executed for two different cancer cell lines MCF-7 (Breast cancer) and KB (Oral cancer) in comparison with standard paclitaxel by MTT assay. Results: The compound 7f is the potent motif with an acceptable range of IC 50 values for anticancer activity were 63.54 µg/ml and 55.67 µg/ml, against the MCF-7 and KB cell lines, respectively. Molecule docking model revealed that this compound formed three conventional hydrogen bonds with the active sites of the amino acids MET 769, ARG 817 and LYS 721. Conclusion: Compound 7f with two methyl groups on the phenoxy ring and one 4-position methoxy group on the benzoyl ring, showed a significant cytotoxic effect. An advantageous level of low toxicity against normal cell line (L292) by MTT assay was determined.


Metallodrugs ◽  
2015 ◽  
Vol 1 (1) ◽  
Author(s):  
Mario Kubanik ◽  
Jason K. Y. Tu ◽  
Tilo Söhnel ◽  
Michaela Hejl ◽  
Michael A. Jakupec ◽  
...  

Abstract3-Hydroxyflavones belong to the naturally occurring class of flavonoids and have been extensively studied with regard to medicinal application. Moreover, it has been demonstrated that these compounds act as bioactive chelates to the ruthenium(II)–arene moiety. Such organometallic complexes have shown promising anticancer activity against tumor cells via a multitargeting mode of action, interacting with DNA and inhibiting topoisomerase IIα. In this paper, we present the synthesis and characterization of an extended series of 3-hydroxyflavone ligands and their corresponding ruthenium-p-cymene complexes to study the impact of substitution pattern as well as of electron-withdrawing and –donating substituents at the flavonol-phenyl group. The ligands and complexes were characterized by elemental analysis, ESI-MS, 1D as well as 2D NMR spectroscopy. The structures of four Ru(η6-p-cymene) complexes were determined in solid state by single-crystal X-ray diffraction, and the impact of the substitution pattern with regard to in vitro anticancer activity in human cancer cell lines is discussed. Structural differences, calculated octanol-water partition coefficients (clogP) of the flavonols and aqueous solubility were used to rationalize the finding that chlorido[3-(oxo-κO)-2-(3,5- dimethoxyphenyl)-chromen-4-onato-κO](η6-p-cymene)ruthenium(II) 2b exhibits the highest cytotoxicity with IC50 values in the low μM range in all tested cell lines.


Author(s):  
S. N. Mamle Desai ◽  
Rudrax N. S. Priolkar ◽  
Harshank A. Naik Karmali ◽  
Prabhav D. Ambe ◽  
B. S. Biradar

Objective: Synthesis, characterization and evaluation of quinolin-2-one derivatives as possible anticancer agents.Methods: A series of novel 4-hydroxy-1-phenyl/methyl-3-(3-substituted-1-(substitutedimino)propyl)quinolin-2(1H)-one derivatives IIa(1-5)/IIb(1-5) and 4-hydroxy-1-phenyl/methyl-3-(1-(substituedimino)ethyl)quinolin-2(1H)-one derivatives IIIa(1-3)/IIIb(1-3) were synthesised by nucleophilic addition of substituted anilines on 3-acetyl-4-hydroxy-1-phenyl/methylquinolin-2(1H)-one (a/b) and 4-hydroxy-3-(3-substitutedpropanoyl)-1-phenyl/methyl quinolin-2(1H)-one (Ia/Ib); respectively. The synthesised derivatives were characterised by spectral analysis and were tested for their in vitro anticancer activity against K562 and Hep 3b cell lines by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay method.Results: The compounds were tested for their in vitro anticancer activity against K562 and Hep 3b cell lines at 10, 20, 25, 30 and 50 µg/ml concentration using MTT assay method. The compound 4-hydroxy-3-(3-morpholino-1-(phenylimino)propyl)-1-phenylquinolin-2(1H)-one (IIa-1) showed anticancer activity with IC50 value 20 µg as compared to the control against K562 cell lines. The compound 4-hydroxy-1-phenyl-3-(1-(phenylimino) ethyl) quinolin-2(1H)-one (IIIa-1) showed anticancer activity with IC50 value less than 10 µg.Conclusion: The proposed method for the synthesis of novel derivatives is convenient and gives a good yield. Some of the synthesised compounds showed promising anticancer activity against K562 and Hep 3b cell lines. Compound IIa-1 (R=-C6H5; R1= morpholine; R2= C6H5-NH-) exhibited most potent activity against K562 cell lines. Compound IIIa-1 (R=-C6H5; R3= C6H5-NH-) has been proved to be the most cytotoxic compound among the other derivatives against Hep 3b cell lines.


Author(s):  
JAYACHANDRA KUNCHA ◽  
THIRUGNANASAMBANTHAM P ◽  
KUMARAN S ◽  
NARAYANAN N ◽  
SHARMILA DEVI V

Introduction: The use of natural products as anticancer agents has a long history that began with folklore medicine and through the years has been incorporated into traditional and allopathic medicine. Several drugs currently used are derived from medicinal plants. Objective: The main objective of this study is to investigate the cytotoxic potential of hepatoprotective polyherbal formulation in normal and cancer cell lines. Methods: A 3-(4,5-dimethythiazol-2-yl)-2,5-diphenyltetrazolium bromide assay was utilized to screen the cytotoxic activity. Results: The results revealed that the formulation does not induce much mortality in normal liver and kidney cell lines, and LC50 value of liver cell lines was found 1716.355 μg/ml and kidney cell lines 2464.910 μg/ml. The in vitro anticancer activity was performed on liver, colon, and prostate cancer cell lines, and IC50 values are found 2.077, 3.850, and 11.989 μg/ml, respectively, which show excellent anticancer activity. Conclusion: Based on the results obtained, the hepatoprotective polyherbal formulation is safe for normal cells and cytotoxic for cancer cells. Further, identification and quantification of phytoconstituents responsible for the activity are in progress.


2020 ◽  
Vol 19 (1) ◽  
pp. 25-28
Author(s):  
Suciati ◽  
Lusiana Arifianti

Marine sponges have been known as the source of natural products. Various metabolites with potent bioactivities have been reported from this organism. The current study aims to investigate the anticancer potency of three marine sponges namely Diacarnus debeauforti, Haliclona amboinensis and Agelas cavernosa collected from Barrang Lompo Island, South Sulawesi, Indonesia. The ethyl acetate extracts of the sponges were screened against T47D breast cancer cells and HeLa cervical cancer cells by using the MTT method. The results showed that these sponges demonstrated anticancer activity against both cancer cell lines. The lowest IC50 of 18.2 μg/ml was given by the extract of A. cavernosa against T47D cell line, while in the screening against HeLa cancer cell line, the extract of D. debeauforti revealed the highest potency with IC50 of 15.7 μg/ml. Our results suggested that the marine sponges namely D. debeauforti, H. amboinensis and A. cavernosa can be good candidates for the development of anticancer agents. Dhaka Univ. J. Pharm. Sci. 19(1): 25-28, 2020 (June)


Antioxidants ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1115
Author(s):  
Mindaugas Liaudanskas ◽  
Vaidotas Žvikas ◽  
Vilma Petrikaitė

In modern society, cancer is one of the most relevant medical problems. It is important to search for promising plant raw materials whose extracts have strong antioxidant and anticancer effects. The aim of this study was to determine the composition of phenolic compounds in plant extracts, to evaluate their antioxidant and anticancer activity, and to find the correlations between those activities. Extracts of calendula, sage, bearberry, eucalyptus, yarrow, and apple were selected for the study. The phenolic compounds of these extracts were determined by the UPLC-ESI-MS/MS method and the antioxidant activity was evaluated in vitro by four different UV-VIS spectrophotometric methods (ABTS, DPPH, CUPRAC, FRAP). The anticancer activity of extracts was tested against melanoma IGR39, glioblastoma U-87, and triple-negative breast cancer MDA-MB-231 cell lines in vitro by MTT assay. The highest content of identified and quantified phenolic compounds was found in sage leaf extract and the lowest in ethanol eucalyptus leaf extract. The highest antioxidant activity was determined by all applied methods for the acetone eucalyptus leaf extract. The majority of extracts were mostly active against the melanoma IGR39 cell line, and possessed the lowest activity against the glioblastoma U-87 cell line. Acetone extract of eucalyptus leaf samples exhibited the highest anticancer activity against all tested cell lines. Strong and reliable correlation has been found between antioxidant and anticancer activity in breast cancer and glioblastoma cell lines, especially when evaluating antioxidant activity by the FRAP method.


Author(s):  
Agnieszka Wróbel ◽  
Danuta Drozdowska

Background: Dihydrofolate reductase (DHFR) has been known for decades as a molecular target for antibacterial, antifungal and anti-malarial treatments. This enzyme is becoming increasingly important in the design of new anticancer drugs, which is confirmed by numerous studies including modelling, synthesis and in vitro biological research. This review aims to present and discuss some remarkable recent advances on the research of new DHFR inhibitors with potential anticancer activity. Methods: The scientific literature of the last decade on the different types of DHFR inhibitors has been searched. The studies on design, synthesis and investigation structure-activity relationship were summarized and divided into several subsections depending on the leading molecule and its structural modification. Various methods of synthesis, potential anticancer activity and possible practical applications as DHFR inhibitors of new chemical compounds were described and discussed. <p> Results: This review presents the current state of knowledge on the modification of known DHFR inhibitors and the structures and searching for over eighty new molecules, designed as potential anticancer drugs. In addition, DHFR inhibitors acting on thymidylate synthase (TS), carbon anhydrase (CA) and even DNA-binding are presented in this paper. <p> Conclusion: Thorough physicochemical characterization and biological investigations it is possible to understand structure-activity relationship of DHFR inhibitors. This will enable even better design and synthesis of active compounds, which would have the expected mechanism of action and the desired activity.


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