scholarly journals Bauhinia variegataLeaf Extracts Exhibit Considerable Antibacterial, Antioxidant, and Anticancer Activities

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Amita Mishra ◽  
Amit Kumar Sharma ◽  
Shashank Kumar ◽  
Ajit K. Saxena ◽  
Abhay K. Pandey

The present study reports the phytochemical profiling, antimicrobial, antioxidant, and anticancer activities ofBauhinia variegataleaf extracts. The reducing sugar, anthraquinone, and saponins were observed in polar extracts, while terpenoids and alkaloids were present in nonpolar and ethanol extracts. Total flavonoid contents in various extracts were found in the range of 11–222.67 mg QE/g. In disc diffusion assays, petroleum ether and chloroform fractions exhibited considerable inhibition againstKlebsiella pneumoniae. Several other extracts also showed antibacterial activity against pathogenic strains ofE. coli,Proteusspp. andPseudomonasspp. Minimum bactericidal concentration (MBC) values of potential extracts were found between 3.5 and 28.40 mg/mL. The lowest MBC (3.5 mg/mL) was recorded for ethanol extract againstPseudomonasspp. The antioxidant activity of the extracts was compared with standard antioxidants. Dose dependent response was observed in reducing power of extracts. Polar extracts demonstrated appreciable metal ion chelating activity at lower concentrations (10–40 μg/mL). Many extracts showed significant antioxidant response in beta carotene bleaching assay. AQ fraction ofB. variegatashowed pronounced cytotoxic effect against DU-145, HOP-62, IGR-OV-1, MCF-7, and THP-1 human cancer cell lines with 90–99% cell growth inhibitory activity. Ethyl acetate fraction also produced considerable cytotoxicity against MCF-7 and THP-1 cell lines. The study demonstrates notable antibacterial, antioxidant, and anticancer activities inB. variegataleaf extracts.

2021 ◽  
Author(s):  
Cheng-Ting Zi ◽  
Bo-Ya Shi ◽  
Ze-Hao Wang ◽  
Ning Zhang ◽  
Yin-Rong Xie ◽  
...  

Abstract Novel glucosylated (-)-epigallocatechin-3-gallate derivatives 10 – 13 having the EGCG analogues conjugated to the D-glucosyl azide were synthesized by carrying out the copper-catalyzed azide-alkyne cycloaddition (CuAAC) reaction, and were evaluated for their cytotoxicities against a panel of five human cancer cell lines (HL-60, SMMC-7721, A-549, MCF-7 and SW480) using MTT assays. Compounds 10 and 11 showed the highest levels of cytotoxicity against the HL-60 cells with IC50 values of 4.57 μM and 3.78 μM, respectively, and showed moderate selectivity towards cancer cell lines. Compound 11 was also shown to induce apoptosis in HL-60 cells. Most notably, inclusion of the perbutyrylated glucose residue in an EGCG derivative was concluded to lead to increased anticancer activity.


2019 ◽  
Vol 17 (1) ◽  
pp. 54-60
Author(s):  
Eeduri R. Devi ◽  
Reddymasu Sreenivasulu ◽  
Koya P. Rao ◽  
Ratnakaram V. Nadh ◽  
Malladi Sireesha

Cancer is a second leading cause of death after heart attack, in developing as well as undeveloped countries. It is caused by unregulated growth and metastasis of the abnormal cancer cells. Cancer can be cured by radiation, immunotherapy and chemotherapy, among them; chemotherapy is a good treatment for cancer, in which chemotherapeutic drug is used. The anticancer activity of newly synthesized compounds (13a-j) was carried out on four different types of human cancer cell lines like MCF-7 (breast), A549 (lung), Colo-205 (colon) and A2780 (ovarian) by the MTT method, and compared to etoposide used as a positive control. Among them, compound 13g with electron-withdrawing (3,5-dinitro) group, exhibited more promising activity in all cell lines (MCF-7 = 0.10±0.076 µM, A549 = 0.17±0.039 µM, Colo-205= 0.13±0.022 µM and A2780 = 0.87±0.027µM). This compound may act as lead drug in cancer chemotherapy. In future, this compound can be examined for clinical studies.


Molecules ◽  
2021 ◽  
Vol 26 (13) ◽  
pp. 3923
Author(s):  
Adel A.-H. Abdel-Rahman ◽  
Amira K. F. Shaban ◽  
Ibrahim F. Nassar ◽  
Dina S. EL-Kady ◽  
Nasser S. M. Ismail ◽  
...  

New pyridine, pyrazoloyridine, and furopyridine derivatives substituted with naphthyl and thienyl moieties were designed and synthesized starting from 6-(naphthalen-2-yl)-2-oxo-4-(thiophen-2-yl)-1,2-dihydropyridine-3-carbonitrile (1). The chloro, methoxy, cholroacetoxy, imidazolyl, azide, and arylamino derivatives were prepared to obtain the pyridine-−C2 functionalized derivatives. The derived pyrazolpyridine-N-glycosides were synthesized via heterocyclization of the C2-thioxopyridine derivative followed by glycosylation using glucose and galactose. The furopyridine derivative 14 and the tricyclic pyrido[3′,2′:4,5]furo[3,2-d]pyrimidine 15 were prepared via heterocyclization of the ester derivative followed by a reaction with formamide. The newly synthesized compounds were evaluated for their ability to in vitro inhibit the CDK2 enzyme. In addition, the cytotoxicity of the compounds was tested against four different human cancer cell lines (HCT-116, MCF-7, HepG2, and A549). The CDK2/cyclin A2 enzyme inhibitory results revealed that pyridone 1, 2-chloro-6-(naphthalen-2-yl)-4-(thiophen-2-yl)nicotinonitrile (4), 6-(naphthalen-2-yl)-4-(thiophen-2-yl)-1H-pyrazolo[3,4-b]pyridin-3-amine (8), S-(3-cyano-6-(naphthaen-2-yl)-4-(thiophen-2-yl)pyridin-2-yl) 2-chloroethanethioate (11), and ethyl 3-amino-6-(naphthalen-2-yl)-4-(thiophen-2-yl)furo[2,3-b]pyridine-2-carboxylate (14) are among the most active inhibitors with IC50 values of 0.57, 0.24, 0.65, 0.50, and 0.93 µM, respectively, compared to roscovitine (IC50 0.394 μM). Most compounds showed significant inhibition on different human cancer cell lines (HCT-116, MCF-7, HepG2, and A549) with IC50 ranges of 31.3–49.0, 19.3–55.5, 22.7–44.8, and 36.8–70.7 μM, respectively compared to doxorubicin (IC50 40.0, 64.8, 24.7 and 58.1 µM, respectively). Furthermore, a molecular docking study suggests that most of the target compounds have a similar binding mode as a reference compound in the active site of the CDK2 enzyme. The structural requirements controlling the CDK2 inhibitory activity were determined through the generation of a statistically significant 2D-QSAR model.


Author(s):  
Agnes Paradissis ◽  
Sophia Hatziantoniou ◽  
Aristidis Georgopoulos ◽  
Konstantinos Dimas ◽  
Costas Demetzos

2013 ◽  
Vol 91 (8) ◽  
pp. 741-754 ◽  
Author(s):  
Karam Chand ◽  
Amir Nasrolahi Shirazi ◽  
Preeti Yadav ◽  
Rakesh K. Tiwari ◽  
Meena Kumari ◽  
...  

A series of 6- and 8-cinnamoylchromen-2-one and dihydropyranochromen-2-one derivatives were synthesized and their antiproliferative activities were evaluated against three human cancer cell lines, i.e., ovarian adenocarcinoma (SK-OV-3), leukemia (CCRF-CEM), and breast carcinoma (MCF-7). In general, 8-cinnamoylchromen-2-one derivatives were found to have higher antiproliferative activity against the cancer cells when compared with 6-cinnamoyl analogues. Among all of the hybrid chromen-2-one − chalcone/flavanone compounds, a 7-hydroxy-8-cinnamoylchromen-2-one derivative 35 was found to be consistently active against all the cancer cell lines and inhibited the cell proliferation of SK-OV-3, CCRF-CEM, and MCF-7 by 63%, 50%, and 43%, respectively, at a concentration of 50 μmol/L after 72 h of incubation. This compound also exhibited the highest Src kinase inhibition (IC50 = 14.5 μmol/L). Structure−activity relationship studies provided insights for designing the next generation of chromen-2-one − chalcone hybrid prototypes and the development of new leads as anticancer agents and (or) Src kinase inhibitors.


Molecules ◽  
2019 ◽  
Vol 24 (15) ◽  
pp. 2772 ◽  
Author(s):  
Balkrishna ◽  
Das ◽  
Pokhrel ◽  
Joshi ◽  
Laxmi ◽  
...  

Colchicine was extracted from Gloriosa superba seeds using the Super Critical Fluid (CO2) Extraction (SCFE) technology. The seeds were purified upto 99.82% using column chromatography. Colchicine affinity was further investigated for anticancer activity in six human cancer cell lines, i.e., A549, MCF-7, MDA-MB231, PANC-1, HCT116, and SiHa. Purified colchicine showed the least cell cytotoxicity and antiproliferation and caused no G2/M arrest at clinically acceptable concentrations. Mitotic arrest was observed in only A549 and MDA-MB231 cell lines at 60nM concentration. Our finding indicated the possible use of colchicine at a clinically acceptable dose and provided insight into the science behind microtubule destabilization. However, more studies need to be conducted beforethese findings could be established.


2019 ◽  
Vol 14 (5) ◽  
pp. 1934578X1984413
Author(s):  
Thi Hong Van Nguyen ◽  
Thi Tuyen Tran ◽  
Thi Inh Cam ◽  
Minh Quan Pham ◽  
Quoc Long Pham ◽  
...  

Zanthoxylum nitidum (Roxb.) DC (Rutaceae) is a traditional medicine used for the treatment of various diseases like toothache, gingivitis, fever, colic vomiting, diarrhea, and cholera. Three new alkaloids, zanthocadinanine C (1), 7-methoxy-8-demethoxynitidine (2), and zanthonitiside I (3) were isolated from the stems and twigs of Z. nitidum. Their structures were determined on the basis of extensive spectroscopic, including 1-dimensional and 2-dimensional nuclear magnetic resonance and mass spectroscopy data. Compounds 1–3 were evaluated for cytotoxic activity against 5 human cancer cell lines, KB, MCF-7, LNCaP, HepG-2, and LU-1. Compound 2 showed significant cytotoxic activity against all tested human cancer cell lines with IC50 values ranging from 10.3 to 12.6 µM.


2016 ◽  
Vol 78 (10) ◽  
Author(s):  
Putri Nur Hidayah Al-Zikri ◽  
Muhammad Taher ◽  
Deny Susanti ◽  
Solachuddin Jauhari Arief Ichwan

Luvunga scandens belongs to the family of Rutaceae which usually inhabit tropical and moist environment. This plant is known as ‘Mengkurat Jakun’ among locals and used traditionally to treat fever and fatigue via decoction. The aim of this study was to investigate the cytotoxic activity of the leaves and stems extracts of L. scandens extract. Extracts of the leaves and stems were obtained from sequential extraction procedures by various organic solvents. All extracts were subjected to cytotoxic study by 3-(4, 5-dimethylthaizol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) assay. In in vitro cytotoxicity assay, all L. scandens extracts exhibited cytotoxicity against human breast adenocarcinoma (MCF-7) and human lung adenocarcinoma (A549) cell lines. The IC50 values of dichloromethane and methanol extracts from the leaves of L. scandens against MCF-7 cell line were 62.5 µg/mL and 88.0 µg/mL, respectively, whereas IC50 of methanol extract from stem was 81.0 µg/mL. All extracts were less active against A549 cell line where IC50 value were not be determined. The present findings revealed the potential of L. scandens as a cytotoxic agent against MCF-7 cell line. However, further studies should be planned to evaluate role of the plant in cytotoxic activity.


2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Amita Mishra ◽  
Shashank Kumar ◽  
Abhay K. Pandey

Present communication reports the scientific evaluation ofTinospora cordifoliafor its medicinal efficacy which includes phytochemical screening, antimicrobial, antioxidant, and anticancer activities of the plant. Secondary metabolites including anthraquinones, terpenoids, and saponins were present in many extracts in addition to phenolics. Total phenol contents in various extracts were found in the range of 8.75–52.50 catechol equivalent per gram (CE/g). In disc diffusion assays, polar extracts exhibited considerable inhibition againstKlebsiella pneumoniae. Several other extracts also showed antibacterial activity against pathogenic strains ofE. coli,Pseudomonasspp., andProteusspp. Minimum bactericidal concentration (MBC) values of potential extracts were found between 1.29 and 22.73 mg/mL. The lowest MBC (1.29 mg/mL) was recorded for acetone and ethyl acetate extracts againstK. pneumoniaeandPseudomonasspp., respectively. The antioxidant activity of the extracts was comparable to that of standard antioxidants and concentration-dependent response was shown in reducing power assay. Aqueous extracts demonstrated substantial metal ion chelating activity (67–95%) at lower concentrations (10–40 μg/mL). Other extracts also exhibited considerable metal chelating response. Most of the extracts revealed considerable inhibition of MCF-7 cancer cell line. The study established remarkable antibacterial, antioxidant, and anticancer potential inT. cordifoliastem extracts.


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