Expanding on the Structural Diversity of Flavone- Derived RutheniumII(ƞ6-arene) Anticancer Agents

Metallodrugs ◽  
2015 ◽  
Vol 1 (1) ◽  
Author(s):  
Mario Kubanik ◽  
Jason K. Y. Tu ◽  
Tilo Söhnel ◽  
Michaela Hejl ◽  
Michael A. Jakupec ◽  
...  
Keyword(s):  
Anticancer Activity ◽  
Cell Lines ◽  
Anticancer Agents ◽  
Human Cancer ◽  
Phenyl Group ◽  
Organometallic Complexes ◽  
2D Nmr Spectroscopy ◽  
Substitution Pattern ◽  
The Impact

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.

scholarly journals Design, Synthesis, and In Vitro Evaluation of Novel Indolyl DiHydropyrazole Derivatives as Potential Anticancer Agents

Molecules ◽  
2021 ◽  
Vol 26 (17) ◽  
pp. 5235
Author(s):  
Katharigatta N. Venugopala ◽  
Mohammed Habeebuddin ◽  
Bandar E. Aldhubiab ◽  
Afzal Haq Asif
Keyword(s):  
Anticancer Activity ◽  
Cell Lines ◽  
Anticancer Agents ◽  
Human Cancer ◽  
Structural Features ◽  
Synthetic Methods ◽  
Potential Candidate ◽  
Human Cancer Cell Lines ◽  
Hybrid Molecules

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.

Novel N-bridged pyrazole-1-carbothioamides with potential antiproliferative activity: design, synthesis, in vitro and in silico studies

2021 ◽  
Vol 13 (20) ◽  
pp. 1743-1766
Author(s):  
Islam H El Azab ◽  
Essa M Saied ◽  
Alaa A Osman ◽  
Amir E Mehana ◽  
Hosam A Saad ◽  
...  
Keyword(s):  
Cell Lines ◽  
Cancer Cell ◽  
Anticancer Agents ◽  
Antiproliferative Activity ◽  
In Silico ◽  
Human Cancer ◽  
Cancer Cell Lines ◽  
Molecular Docking Study ◽  
In Silico Studies

Thiazole-substituted pyrazole is an important structural feature of many bioactive compounds, including antiviral, antitubercular, analgesic and anticancer agents. Herein we describe an efficient and facile approach for the synthesis of two series of 36 novel N-bridged pyrazole-1-phenylthiazoles. The antiproliferative activity of a set of representative compounds was evaluated in vitro against different human cancer cell lines. Among the identified compounds, compound 18 showed potent anticancer activity against the examined cancer cell lines. The in silico molecular docking study revealed that compound 18 possesses high binding affinity toward both SK1 and CDK2. Overall, these results indicate that compound 18 is a promising lead anticancer compound which may be exploited for development of antiproliferative drugs.

scholarly journals Isolation, Synthesis and Biological Evaluation of Phenylpropanoids from the Rhizomes of Alpania galanga

2013 ◽  
Vol 8 (12) ◽  
pp. 1934578X1300801 ◽  
Author(s):  
Sumit S Chourasiya ◽  
Eppakayala Sreedhar ◽  
K. Suresh Babu ◽  
Nagula Shankaraiah ◽  
V. Lakshma Nayak ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Colon Cancer ◽  
Anticancer Activity ◽  
Cell Lines ◽  
Cancer Cell ◽  
Kinetic Resolution ◽  
Human Cancer ◽  
Cancer Cell Lines ◽  
Biological Evaluation

Bioactivity guided investigation of the DCM: MeOH (1:1) extract from the rhizomes of Alpinia galanga led to the isolation of phenylpropanoids (1–9) and their structures were established by 1H NMR, 13C NMR, IR and LC-MS/MS. These compounds have been evaluated for their in vitro anticancer activity against the human cancer cell lines A549 (lung cancer), Colo-205 (colon cancer), A431 (skin cancer), NCI H460 (lung cancer), PC-3 (prostate cancer), and HT-29 (colon cancer). Compounds 4 and 9 showed potent anticancer activity (ranging from 1.3–19.7 μg/mL) against all the tested cancer cell lines. In addition, an asymmetric synthesis of acetoxychavicol acetate (1) and trans-p-coumaryl alcohol (4) has been accomplished in six steps starting from readily available p-hydroxybenzaldehyde for the first time. Grignard reaction and Sharpless kinetic resolution reactions were utilized as the key steps to install the basic core.

scholarly journals Pharmacological Evaluation of the Anticancer Activity of Extracts and Fractions of Lannea barteri Oliv. (Anacardiaceae) on Adherent Human Cancer Cell Lines

Molecules ◽  
2020 ◽  
Vol 25 (4) ◽  
pp. 849 ◽  
Author(s):  
Florence N. Mbaoji ◽  
Steven Behnisch-Cornwell ◽  
Adaobi C. Ezike ◽  
Chukwuemeka S. Nworu ◽  
Patrick J. Bednarski
Keyword(s):  
Anticancer Activity ◽  
Cell Lines ◽  
Cancer Cell ◽  
Anticancer Agents ◽  
Human Cancer ◽  
Stem Bark ◽  
Cancer Cell Lines ◽  
Human Carcinoma ◽  
Human Cancer Cell Lines ◽  
Western Africa

In western Africa ethnomedicine, Lannea barteri Oliv. (Anacardiaceae) is believed to have activity against gastrointestinal, neurological and endocrine diseases. Previous studies on this plant have revealed antimicrobial, anticholinestrase, anticonvulsant, antioxidant and anti-inflammatory activities. However, the anticancer potential of L. barteri has not been studied to date. The aim of this study was to evaluate the anticancer potential of hot and cold extracts and silica gel column chromatographic fractions of L. barteri leaf and stem bark. The extracts and fractions were tested for anticancer activity by using the crystal violet cell proliferation assay on four adherent human carcinoma cell lines—5637 (bladder), KYSE 70 (oesophagus), SiSo (cervical) and HepG2 (hepatic). The inhibitory concentration (IC50) of fractions IH, 1I, 2E and 2F were: 3.75 ± 1.33, 3.88 ± 2.15, 0.53 ± 0.41, and 0.42 ± 0.45 µg/mL against KYSE 70 and 1.04 ± 0.94, 2.69 ± 1.17, 2.38 ± 3.64, 2.17 ± 1.92 µg/mL against SiSo cell lines respectively. Fraction 2E showed weak apoptotic activity at double the IC50 and some sign of cell cycle arrest in the G2/M phase. Thus, phytoconstituents of L. barteri leaf and stem bark can inhibit the proliferation of cancer cell lines indicating the presence of possible anticancer agents in this plant.

scholarly journals Purification and Characterization of a Lectin from Arisaema tortuosum Schott Having in-vitro Anticancer Activity against Human Cancer Cell Lines

BMB Reports ◽  
2005 ◽  
Vol 38 (5) ◽  
pp. 526-532 ◽  
Author(s):  
Vikram Dhuna ◽  
Jagmohan Singh Bains ◽  
Sukhdev Singh Kamboj ◽  
Jatinder Singh ◽  
Shanmugavel ◽  
...  
Keyword(s):  
Anticancer Activity ◽  
Cell Lines ◽  
Cancer Cell ◽  
Human Cancer ◽  
Cancer Cell Lines ◽  
Human Cancer Cell ◽  
Purification And Characterization ◽  
Human Cancer Cell Lines

scholarly journals Design, Synthesis, In Vitro Anticancer Evaluation and Molecular Modelling Studies of 3,4,5-Trimethoxyphenyl-Based Derivatives as Dual EGFR/HDAC Hybrid Inhibitors

2021 ◽  
Vol 14 (11) ◽  
pp. 1177
Author(s):  
Tarek S. Ibrahim ◽  
Azizah M. Malebari ◽  
Mamdouh F. A. Mohamed
Keyword(s):  
Cell Cycle ◽  
Cell Lines ◽  
Cancer Cell ◽  
Anticancer Agents ◽  
Hydroxamic Acid ◽  
Phenyl Group ◽  
Cancer Cell Lines ◽  
Anticancer Activities ◽  
Molecular Docking Study

Recently, combining histone deacetylase (HDAC) inhibitors with chemotherapeutic drugs or agents, in particular epidermal growth factor receptor (EGFR) inhibitors, is considered to be one of the most encouraging strategy to enhance the efficacy of the antineoplastic agents and decrease or avoid drug resistance. Therefore, in this work, based on introducing 3,4,5-trimethoxy phenyl group as a part of the CAP moiety, in addition to incorporating 4–6 aliphatic carbons linker and using COOH or hydroxamic acid as ZBG, 12 novel EGFR/HDAC hybrid inhibitors 2a–c, 3a–c, 4a–c and 5a–c were designed, constructed, and evaluated for their anticancer activities against 4 cancer cell lines (HepG2, MCF-7, HCT116 and A549). Among all, hybrids with hydroxamic acid 4a–c and 5a, exhibited the highest inhibition against all cancer cell lines with IC50 ranging from 0.536 to 4.892 μM compared to Vorinostat (SAHA) with IC50 ranging from 2.43 to 3.63 μM and Gefitinib with IC50 ranging from 1.439 to 3.366 μM. Mechanistically, the most potent hybrids 4a–c and 5a were further tested for their EGFR and HDACs inhibitory activities. The findings disclosed that hybrid 4b displayed IC50 = 0.063 µM on the target EGFR enzyme which is slightly less potent than the standard Staurosporine (IC50 = 0.044 µM). Furthermore, hybrid 4b showed less HDAC inhibitory activity IC50 against HDAC1 (0.148), 2 (0.168), 4 (5.852), 6 (0.06) and 8 (2.257) than SAHA. In addition, the investigation of apoptotic action of the most potent hybrid 4b showed a significant increase in Bax level up to 3.75-folds, with down-regulation in Bcl2 to 0.42-fold, compared to the control. Furthermore, hybrid 4b displayed an increase in the levels of Caspases 3 and 8 by 5.1 and 3.15 folds, respectively. Additionally, the cell cycle analysis of hybrid 4b revealed that it showed programmed cell death and cell cycle arrest at G1/S phase. Moreover, all these outcomes together with the molecular docking study recommended the rationalized target hybrids 4a–c and 5a, particularly 4b, may be considered to be promising lead candidates for discovery of novel anticancer agents via dual inhibition of both EGFR/HDAC enzymes.

scholarly journals Design, Synthesis, and Molecular Docking Study of Novel Heterocycles Incorporating 1,3,4-Thiadiazole Moiety as Potential Antimicrobial and Anticancer Agents

Molecules ◽  
2019 ◽  
Vol 24 (6) ◽  
pp. 1066 ◽  
Author(s):  
Mohamed El-Naggar ◽  
Hanan A. Sallam ◽  
Safaa S. Shaban ◽  
Salwa S. Abdel-Wahab ◽  
Abd El-Galil E. Amr ◽  
...  
Keyword(s):  
Molecular Docking ◽  
Cell Lines ◽  
Anticancer Agents ◽  
Human Cancer ◽  
Docking Study ◽  
Molecular Docking Study ◽  
Reference Drug ◽  
Human Cancer Cell Lines ◽  
Dhfr Inhibitors

A new series of 5-(3,5-dinitrophenyl)-1,3,4-thiadiazole derivatives were prepared and evaluated for their in vitro antimicrobial, antitumor, and DHFR inhibition activity. Compounds 9, 10, 13, and 16 showed strong and broad-spectrum antimicrobial activity comparable to Amoxicillin and Fluconazole as positive antibiotic and antifungal controls, respectively. Compounds 6, 14, and 15 exhibited antitumor activity against four human cancer cell lines, CCRF-CEM leukemia, HCT-15 colon, PC-3 prostate, and UACC-257 melanoma cell lines using Doxorubicin as a reference drug. Compounds 10, 13, 14, and 15 proved to be the most active DHFR inhibitors with an IC50 range of 0.04 ± 0.82–1.00 ± 0.85 µM, in comparison with Methotrexate (IC50 = 0.14 ± 1.38 µM). The highly potent DHFR inhibitors shared a similar molecular docking mode and made a critical hydrogen bond and arene‒arene interactions via Ser59 and Phe31 amino acid residues, respectively.

scholarly journals Potent In Vitro and In Vivo Anticancer Activity of New Bipyridine and Bipyrimidine Gold (III) Dithiocarbamate Derivatives

Cancers ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 474 ◽  
Author(s):  
Muhammad Altaf ◽  
Naike Casagrande ◽  
Elena Mariotto ◽  
Nadeem Baig ◽  
Abdel-Nasser Kawde ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Anticancer Activity ◽  
Cell Lines ◽  
Cancer Cell ◽  
Human Cancer ◽  
Cancer Cell Lines ◽  
Ros Generation ◽  
Dna Breaks

We synthesized eight new bipyridine and bipyrimidine gold (III) dithiocarbamate-containing complexes (C1–C8) and tested them in a panel of human cancer cell lines. We used osteosarcoma (MG-63), lung (A549), prostate (PC3 and DU145), breast (MCF-7), ovarian (A2780 and A2780cis, cisplatin- and doxorubicin-resistant), and cervical (ME-180 and R-ME-180, cisplatin resistant) cancer cell lines. We found that C2, C3, C6, and C7 were more cytotoxic than cisplatin in all cell lines tested and overcame cisplatin and doxorubicin resistance in A2780cis and R-ME-180 cells. In the PC3 prostate cancer cell line, the gold (III) complex C6 ([Au2(BPM)(DMDTC)2]Cl4) induced apoptosis and double-stranded DNA breaks, modified cell cycle phases, increased Reactive Oxigen Species (ROS) generation, and reduced thioredoxin reductase and proteasome activities. It inhibited PC3 cell migration and was more cytotoxic against PC3 cells than normal human adipose-derived stromal cells. In mice bearing PC3 tumor xenografts, C6 reduced tumor growth by more than 70% without causing weight loss. Altogether, our results demonstrate the anticancer activity of these new gold (III) complexes and support the potential of C6 as a new agent for prostate cancer treatment.

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