Discovery of novel substituted N-(6-Chloro-3-cyano-4-phenyl-4H-chromen-2-yl)-2-(4-chloro-phenoxy)-acetamide for biphasic anticancer and anticonvulsant activities

2019 ◽  
Vol 15 ◽  
Author(s):  
Divya Chauhan ◽  
Syed Riaz Hashim ◽  
Priyanka Rani ◽  
Sushil Kumar ◽  
Navratan Shrimal ◽  
...  

Background : Privileged 4H-chromenes possess the potent anticancer and anticonvulsant actives. By inspiring potency of 4H-chromenes and demands of present era of scaffold, discovery of effective molecule was carried out for the treatment of cancer and conversant. Objective : Designed and synthesized a novel series of 4H-chromene derivatives from one port synthesis for the treatment of cancer and conversant. Method : Substitution of side amide chain was formed in multiple steps on amine group of chromene. Later, anticancer activity of synthesized compounds was investigated against human colon adenocarcinoma cell line (HT-29) using sulforhodamine B (SRB) assay. Moreover, anticonvulsant activity was also screened out by using maximal electroshock seizure (MES) model and subcutaneous Metrazol Seizure Threshold Test (scMET) in albino Wistar rats. Neurotoxicity was evaluated using by rotarod test. Before the synthesis, docking studies were performed using various molecular targets. Subsequently, the computational study of the titled compounds was performed to predict the pharmacokinetic profile. Result: Among the fifteen tested compounds, A4 and A9 were found to be active against HT-29 cells (growth inhibitory dose 50% (GI50) <11µM). Moreover, compounds A4 showed the protection at 300mg/kg in scMET (h) for albino Wistar rats and compounds A9, A11, A15 exhibited the anticonvulsant effect at the doses 100, 300 and 300 mg/kg, respectively in MES screen(h). Conclusion : Due to these encouraging results, we concluded that both A4 and A9 may be effective against colon cancer. While compound A9 may be used as a considerable effective molecule for the treatment of epilepsy.

Author(s):  
Tanmoy Gangopadhyay ◽  
Ananya Mandal ◽  
Uma Shanker Keshri

Background: Individuals with epilepsy have a higher incidence of psychiatric disorders than person without epilepsy. Epidemiological studies have shown that the co-morbidity of epilepsy and depression to be high as 50%. The conventional anti-depressants are believed to lower the seizure threshold making it difficult to treat the co-morbid depression, but animal studies have shown SSRIs, a common anti-depressant, to have anti-convulsant properties. So, we propose to study the anticonvulsant effects of fluoxetine, a SSRI, in albino rats against maximal electroshock seizure and to compare against a standard antiepileptic drug phenytoin.Methods: The anticonvulsant effect of fluoxetine was observed in model of maximal electroconvulsive seizure threshold in albino rats. The animals were divided into 3 groups having 6 animals each, receiving distilled water, fluoxetine and phenytoin respectively. The drugs were given orally, and the effect was observed on day 7, 14 and 21. Tonic hind-limb extension was taken as the parameter of electroshock seizure. The effects were compared against a standard anti-seizure drug phenytoin.Results: Fluoxetine showed significant elevation of the seizure threshold following 14 days of administration (P value 0.031). The effect was comparable to phenytoin with no significant difference after 7, 14 and 21 days of treatment (P-value 0.485, 0.699 and 0.818 respectively) though phenytoin showed significant anti-seizure effect since day 7 of treatment.Conclusions: Fluoxetine showed significant anti-seizure activity against electroconvulsive seizure in albino rats.


2008 ◽  
Vol 102 (2) ◽  
pp. 207-214 ◽  
Author(s):  
Paola Palozza ◽  
Diana Bellovino ◽  
Rossella Simone ◽  
Alma Boninsegna ◽  
Francesco Cellini ◽  
...  

Lycopene β-cyclase (tlcy-b) tomatoes, obtained by modulating carotenogenesis via genetic engineering, contain a large amount of β-carotene, as clearly visible by their intense orange colour. In the present study we have subjected tlcy-b tomatoes to an in vitro simulated digestion and analysed the effects of digestate on cell proliferation. To this aim we used HT-29 human colon adenocarcinoma cells, grown in monolayers, as a model. Digested tomatoes were diluted (20 ml, 50 ml and 100 ml/l) in culture medium and added to the cells for different incubation times (24 h, 48 h and 72 h). Inhibition of cell growth by tomato digestate was dose-dependent and resulted from an arrest of cell cycle progression at the G0/G1 and G2/M phase and by apoptosis induction. A down-regulation of cyclin D1, Bcl-2 and Bcl-xl expression was observed. We also found that heat treatment of samples before digestion enhanced β-carotene release and therefore cell growth inhibition. To induce with purified β-carotene solubilised in tetrahydrofuran the same cell growth inhibition obtained with the tomato digestate, a higher amount of the carotenoid was necessary, suggesting that β-carotene micellarised during digestion is utilised more efficiently by the cells, but also that other tomato molecules, reasonably made available during digestion, may be present and cooperate with β-carotene in promoting cell growth arrest.


2001 ◽  
Vol 172 (2) ◽  
pp. 151-157 ◽  
Author(s):  
Giuseppe Cassano ◽  
Nicoletta Resta ◽  
Giuseppe Gasparre ◽  
Claudio Lippe ◽  
Ginevra Guanti

2016 ◽  
Vol 116 (03) ◽  
pp. 171-178 ◽  
Author(s):  
M. Vijay ◽  
G. Sivagami ◽  
K. Thayalan ◽  
N. Nalini

2021 ◽  
Vol 17 (74) ◽  
pp. 367
Author(s):  
Jianping Zhao ◽  
Zhenyu Feng ◽  
Shuang Meng ◽  
Xiaorong Zhou ◽  
Xiaojuan Ma ◽  
...  

Antioxidants ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 1261
Author(s):  
Gabriele Vilkickyte ◽  
Lina Raudone ◽  
Vilma Petrikaite

Lingonberry leaves and fruits are associated with a range of potential bioactivities related to their phenolic content and composition, but the identification of major biological activity markers remains limited. The present study aimed at the isolation of lingonberry phenolic fractions and biological activity evaluation of them. Crude dry extracts of lingonberry leaves and fruits were fractionated by chromatography using Sephadex LH-20 and analyzed by validated HPLC-PDA method. For each fraction, the anticancer activity against human clear cell renal cell carcinoma (CaKi-1), human colon adenocarcinoma (HT-29), and human malignant melanoma (IGR39) cell lines was determined using MTT assay, and the radical scavenging, reducing, and chelating activities were investigated using ABTS, FRAP, and FIC assays, respectively. Further, 28 phenolics were identified and quantified in the crude extract of lingonberry leaves and 37 in the extract of fruits. These compounds, during fractionation steps, were selectively eluted into active fractions, enriched with different groups of phenolics—monophenols, anthocyanins, phenolic acids, catechins, flavonols, or proanthocyanidins. Fractions of lingonberry leaves and fruits, obtained by the last fractionation step, proved to be the most active against tested cancer cell lines and possessed the greatest antioxidant activity. In this perspective, the predominant compounds of these fractions—polymeric and mainly A-type dimeric proanthocyanidins—also quercetin can be considered to be anticancer and antioxidant activity markers of lingonberries.


Materials ◽  
2020 ◽  
Vol 13 (23) ◽  
pp. 5389
Author(s):  
Paula Ecaterina Florian ◽  
Madalina Icriverzi ◽  
Claudia Mihaela Ninciuleanu ◽  
Elvira Alexandrescu ◽  
Bogdan Trica ◽  
...  

Salecan is a microbial polysaccharide suitable to obtain hydrogel for biomedical applications due to the excellent hydrophilicity and biocompatibility properties. In this work, Salecan of different concentrations was introduced into polymethacrylic acid (PMAA) in the presence of clay to form novel semi synthetic hydrogel nanocomposites systems and loaded afterwards with doxorubicin (DOX). The physical–chemical characteristics of the nanocomposites systems and their effect on the viability, and morphology of MDBK (Madin–Darby bovine kidney), HT-29 human colorectal adenocarcinoma and Colo 205 human colon adenocarcinoma cell lines were investigated. DOX release from the nanocomposite systems, cell up-take and subsequent effect on cell proliferation was also analyzed. It was found that Salecan concentration determined the swelling behavior, structural parameters and morphological features of the nanocomposite systems. The hydrogen bonds strongly influenced the formation of PMAA–Salecan–clay systems, each component bringing its own contribution, thus demonstrating the achievement of an advanced crosslinked network and a more compacted hydrogel nanocomposite morphology. All the synthesized nanocomposites had negligible toxicity to normal MDBK cells and chemoresistent HT-29 cell line, whereas in the case of Colo 205 cells a decrease by 40% of the cell viability was obtained for the sample containing the highest amount of Salecan. This effect was correlated with the lowest pore size distribution leading to highest available specific surface area and entrapped amount of DOX which was further released from the nanocomposite sample. Corroborating all the data it can be suggested that the synthesized nanocomposites with Salecan and clay could be good candidates as vehicles for chemotherapeutic agents.


2012 ◽  
Vol 50 (3-4) ◽  
pp. 660-671 ◽  
Author(s):  
Gunasekaran Sivagami ◽  
Rajamanickam Vinothkumar ◽  
Christo Paul Preethy ◽  
Anvarbatcha Riyasdeen ◽  
Mohammad Abdulkader Akbarsha ◽  
...  

2013 ◽  
Vol 8 (9) ◽  
pp. 1934578X1300800 ◽  
Author(s):  
Antonio J. León-González ◽  
Miguel López-Lázaro ◽  
José L. Espartero ◽  
Carmen Martín-Cordero

During our search for cytotoxic compounds from Andalusian vascular plants, the ethyl acetate extract from the leaves of Corema album (L.) D. Don (Ericaceae) was selected for its cytotoxic activity against the HT-29 human colon adenocarcinoma cell line. Two dihydrochalcones, 2′,4′-dihydroxydihydrochalcone (1) and 2′-methoxy-4′-hydroxydihydrochalcone (2), have been isolated from the leaves of C. album. Their structural identification was based on 1H NMR and 13C NMR data, including 2D NMR, and mass spectrometry. These compounds were subjected to the sulfhorhodamine B (SRB) cytotoxic assay against human colon adenocarcinoma cells (HT-29). Compounds 1 and 2 showed higher cytotoxicity than the positive control 5-fluorouracil (5-FU); the IC50 values (μM ± SEM) were 1.8 ± 0.4 for compound 1, 8.5 ± 2.1 μM for compound 2, and 8.7 ± 4.0 for 5-FU. The cytotoxic activity of 1 and 2 was reduced in the presence of the antioxidants N-acetylcysteine (NAC) and Mn(III) Tetrakis(1-methyl-4-pyridyl) porphyrin pentachloride (MnTMPyP), therefore suggesting that reactive oxygen species generation participates in the cytotoxic activity of these dihydrochalcones.


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