scholarly journals Synthesis, Antiproliferative, and Antioxidant Evaluation of 2-Pentylquinazolin-4(3H)-one(thione) Derivatives with DFT Study

Molecules ◽  
2019 ◽  
Vol 24 (20) ◽  
pp. 3787
Author(s):  
Amira A. El-Sayed ◽  
Mahmoud F. Ismail ◽  
Abd El-Galil E. Amr ◽  
Ahmed M. Naglah

The current study was chiefly designed to examine the antiproliferative and antioxidant activities of some novel quinazolinone(thione) derivatives 6–14. The present work focused on two main points; firstly, comparing between quinazolinone and quinazolinthione derivatives. Whereas, antiproliferative (against two cell lines namely, HepG2 and MCF-7) and antioxidant (by two methods; ABTS and DPPH) activities of the investigated compounds, the best quinazolinthione derivatives were 6 and 14, which exhibited excellent potencies comparable to quinazolinone derivatives 5 and 9, respectively. Secondly, we compared the activity of four series of Schiff bases which included the quinazolinone moiety (11a–d). In addition, the antiproliferative and antioxidant activities of the compounds with various aryl aldehyde hydrazone derivatives (11a–d) analogs were studied. The compounds exhibited potency that increased with increasing electron donating group in p-position (OH > OMe > Cl) due to extended conjugated systems. Noteworthy, most of antiproliferative and antioxidant activities results for the tested compounds are consistent with the DFT calculations.

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Mehdi Farshad Ashraf ◽  
Maheran Abd Aziz ◽  
Johnson Stanslas ◽  
Ismanizan Ismail ◽  
Mihdzar Abdul Kadir

The present paper focused on antioxidant and cytotoxicity assessment of crude and total saponin fraction ofChlorophytum borivilianumas an important medicinal plant. In this study, three different antioxidant activities (2,2-diphenyl-1-picrylhydrazyl radical scavenging (DPPH), ferrous ion chelating (FIC), andβ-carotene bleaching (BCB) activity) of crude extract and total saponin fraction ofC. borivilianumtubers were performed. Crude extract was found to possess higher free radical scavenging activity (ascorbic acid equivalents 2578 ± 111 mg AA/100 g) and bleaching activity (IC50= 0.7 mg mL−1), while total saponin fraction displayed higher ferrous ion chelating (EC50= 1 mg mL−1). Cytotoxicity evaluation of crude extract and total saponin fraction against MCF-7, PC3, and HCT-116 cancer cell lines using 3-(4,5-dimethylthiazol-2-yl)-2,5 diphenyltetrazolium bromide (MTT) cell viability assay indicated a higher cytotoxicity activity of the crude extract than the total saponin fraction on all cell lines, being most effective and selective on MCF-7 human breast cancer cell line.


2020 ◽  
Vol 23 ◽  
pp. 77-82
Author(s):  
E.O. Ikpefan ◽  
B.A. Ayinde ◽  
B.A. Mudassar ◽  
Ahsana Dar Farooq

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.


2020 ◽  
pp. 1-8
Author(s):  
D. Devananda ◽  
Shashanka K Prasad ◽  
D. Devananda

Annona muricata L. has been widely used in traditional medicine for the treatment of various diseases ranging from fever to cancer. In this study, we evaluate the in vitro anticancer potential of methanol extracted A. muricata fruit pulp (AMPM) and seeds (AMSM) phytochemicals against breast (MCF-7), cervical (HeLa), prostate (PC-3) and colorectal (HCT-116) cancer cell lines. Additionally, the in vitro antiinflammatory and antioxidant activities of the extracts have been carried. The findings suggest that the AMSM is the most potent among the either extracts. Notwithstanding, both AMPM and AMSM showed significant dose and cell line-dependent anticancer potential(s).


2020 ◽  
Vol 17 (2) ◽  
pp. 138-144 ◽  
Author(s):  
Sanal Dev ◽  
Della Grace Thomas Parambi ◽  
Bency Baby ◽  
Githa Elizabeth Mathew ◽  
Hendawy Omnia Magdy ◽  
...  

Background: Grindstone technique has been widely used as an efficient, consistent, more environmentally benign, solvent-free protocol for the preparation of many compounds with higher atom economy. Methods: A series of fourteen piperonal chalcone compounds were synthesized by this method and characterized by physical and spectral data (FT-IR, 1H NMR, Mass and elemental analysis). All chalcones were evaluated for their cytotoxic action against the cancer cell lines, MCF-7 and HepG2. One 2-pyridyl-substituted compound 14 with IC50 values 17.4±0.2 towards MCF-7 and 15.4±0.6µmol L-1 towards HepG2 cells. Results: The results demonstrated that the cytotoxic activity of 2-pyridyl-substituted compound shown higher activity as compared with the standard cisplatin towards HepG2 cells. Conclusion: Compound 14 showed good antioxidant activities in the DPPH test and H2O2 assay (IC50 = 17.23± 33/µg/mL and 20.17± 0.33µg/mL) when compared with the standard ascorbic acid (IC50=µg/mL 18.26 ± 0.22and 21.66± 1.06 µg/mL).


2019 ◽  
Vol 19 (4) ◽  
pp. 538-545 ◽  
Author(s):  
Maher A. El-hashash ◽  
Amira T. Ali ◽  
Rasha A. Hussein ◽  
Wael M. El-Sayed

Background: The genetic heterogeneity of tumor cells and the development of therapy-resistant cancer cells in addition to the high cost necessitate the continuous development of novel targeted therapies. Methods: In this regard, 14 novel benzoxazinone derivatives were synthesized and examined for anticancer activity against two human epithelial cancer cell lines; breast MCF-7 and liver HepG2 cells. 6,8-Dibromo-2- ethyl-4H-benzo[d][1,3]oxazin-4-one was subjected to react with nitrogen nucleophiles to afford quinazolinone derivatives and other related moieties (3-12). Benzoxazinone 2 responds to attack with oxygen nucleophile such as ethanol to give ethyl benzoate derivative 13. The reaction of benzoxazinone 2 with carbon electrophile such as benzaldehyde derivatives afforded benzoxazinone derivatives 14a and 14b.The structure of the prepared compounds was confirmed with spectroscopic tools including IR, 1H-NMR, and 13C-NMR. Results: Derivatives 3, 9, 12, 13, and 14b exhibited high antiproliferative activity and were selective against cancer cells showing no toxicity in normal fibroblasts. Derivative 3 with NH-CO group in quinazolinone ring was effective only against breast cells, while derivative 12 with NH-CO group in imidazole moiety was only effective against liver cells probably through arresting cell cycle and enabling repair mechanisms. The other derivatives (9, 13, and 14b) had broader antiproliferative activity against both cell lines. These derivatives enhance the expression of the p53 and caspases 9 and 3 to varying degrees in both cell lines. Derivative 14b caused the highest induction in the investigated genes and was the only derivative to inhibit the EGFR activity. Conclusions: The unique features about derivative 14b could be attributed to its high lipophilicity, high carbon content, or its extended conjugation through planar aromatic system. More investigations are required to identify the lead compound(s) in animal models.


Antioxidants ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 590
Author(s):  
Mikel Etxebeste-Mitxeltorena ◽  
Daniel Plano ◽  
Nora Astrain-Redín ◽  
Cristina Morán-Serradilla ◽  
Carlos Aydillo ◽  
...  

Breast cancer is a multifactor disease, and many drug combination therapies are applied for its treatment. Selenium derivatives represent a promising potential anti-breast cancer treatment. This study reports the cytotoxic activity of forty-one amides and phosphoramidates containing selenium against five cancer cell lines (MCF-7, CCRF-CEM, HT-29, HTB-54 and PC-3) and two nonmalignant cell lines (184B5 and BEAS-2B). MCF-7 cells were the most sensitive and the selenoamides I.1f and I.2f and the selenium phosphoramidate II.2d, with GI50 values ranging from 0.08 to 0.93 µM, were chosen for further studies. Additionally, radical scavenging activity for all the compounds was determined using DPPH and ABTS colorimetric assays. Phosphoramidates turned out to be inactive as radical scavengers. No correlation was observed for the antioxidant activity and the cytotoxic effect, except for compounds I.1e and I.2f, which showed dual antioxidant and antitumor activity. The type of programmed cell death and cell cycle arrest were determined, and the results provided evidence that I.1f and I.2f induced cell death via autophagy, while the derivative II.2d provoked apoptosis. In addition, Western blot analysis corroborated these mechanisms with an increase in Beclin1 and LC3-IIB and reduced SQSTM1/p62 levels for I.1f and I.2f, as well as an increase in BAX, p21 and p53 accompanied by a decrease in BCL-2 levels for derivative II.2d.


Author(s):  
Arif Ayar ◽  
Masuk Aksahin ◽  
Seda Mesci ◽  
Burak Yazgan ◽  
Melek Gül ◽  
...  

Background: Pyrrole compounds having a heterocyclic structure are the most researched and biological activities such as antioxidant and anticancer. Objective: Herein is a first effort to study the significance of heterocyclic compounds to include pyrrole and triazolidine-3,5-dion moiety, on the pharmacokinetic, antioxidant activity and cytotoxic activity on MCF-7 and MCF-12A cell lines. Method: The molecular structures of compounds I-XIV were simulated by the theoretical B3LYP/DFT method. Pharmacokinetic studies of PhTAD-substituted heterocyclic compounds (I-XIV) were analyzed to show Lipinski's rules via in-silico methods of Swiss-ADME. The drug likeness calculations were carried out Molinspiration analyses. The some toxicity risk parameter can be quantified using Osiris. Antioxidant activities determined by DPPH, Fe+2 ions chelating and reducing. Cytotoxic activity measured by MTT and RTCA. Results: Compared with the DPPH activity, the metal chelating activity exhibited serious similar antioxidant effects by PhTAD substituted pyrrole compounds. The same compounds showed the highest activity among the two antioxidant activities. The IC50 values of the compounds are in the range of 12 and 290 µM in MCF-7 cell line. In the MTT and RTCA assays, All compounds showed cytotoxic activity, but about half of the fourteen compounds showed high cytotoxicity. IC50 values of the compounds are in the range of 5 and 54 µM for MTT and range of 1.5 and 44 µM for RTCA. Conclusion: Data of the antioxidant and cytotoxic activity of PhTAD-substituted dihydropyrrole-derived compounds in MCF-7 and MCF-12A cell lines confirmed that the compounds are a biologically active compound and is notable for anti-cancer researches.


2020 ◽  
Vol 26 (1) ◽  
pp. 192-205
Author(s):  
Abdeltawab Mohamed Saeed ◽  
Shaikha S. AlNeyadi ◽  
Ibrahim M. Abdou

Abstract New Schiff bases and azo dyes derivatives have been synthesized via appropriate conventional methods using pyranoquinolinone as a starting material. The compounds obtained were characterized by spectral analysis and evaluated for anticancer activity in several human tumor cell lines: MCF-7 breast cancer, HepG2 liver cancer and HCT-116 colon carcinoma. 5-fluorouracil was used as a reference drug. The in vitro cytotoxicity screening results revealed that all tested compounds showed promising activity against MCF-7 cells. In particular, compounds 6a, 6b, and 7b showed excellent activity against the three human tumor cell lines. Structure-activity relationship studies indicated that the azo derivative with a trifluoromethoxy group (compound 7b) was the most potent candidate against the three human tumor cell lines (IC50, 1.82-8.06 μg/mL). Our findings highlight pyranoquinolinone analogues as a promising class of compounds for new anticancer therapies.


2020 ◽  
Vol 58 (1) ◽  
pp. 12
Author(s):  
Tran Khac Vu

The paper presents a simple synthesis of new quinazolinone derivatives 13a-i. Synthesized derivatives were tested for their cytotoxic effect against three cancer cell lines including SKLU-1, MCF-7 and HepG-2. The bioassay result showed that only compound 13e exhibited significant cytotoxic effect against cancer cell lines tested with IC50 values of 9.48, 20.39 and 18.04 µg/ mL, respectively.


2020 ◽  
Vol 17 (2) ◽  
pp. 145-154 ◽  
Author(s):  
Mohamed Jawed Ahsan ◽  
Lakshya Bhandari ◽  
Shally Makkar ◽  
Rajan Singh ◽  
Mohd. Zaheen Hassan ◽  
...  

Background: Oxadiazole emerged as an important class of heterocyclic compound with diverse biological activities like anticancer, antitubercular, anticonvulsant, anti-tubulin, antimicrobial, anti-inflammatory, antioxidant etc. Objective: The objective of this study is to synthesis series of twelve substituted N-[(1,3,4-oxadiazol-2- yl)methyl]benzamines (6a-l) and their evaluation as antiproliferative and antioxidant agents. Methods: The substituted N-[(1,3,4-oxadiazol-2-yl)methyl]benzamines (6a-l) analogues were synthesized as per the reported procedure. The antiproliferative activity was tested against nine different panels cancer cell lines (leukemia, colon, renal, non-small cell lung, breast, CNS, melanoma, prostate, and ovarian cancer) at 10 µM drug concentrations as per the NCI US Protocol. Results: 2-(5-((3-Chloro-4-fluorophenylamino)methyl)-1,3,4-oxadiazol-2-yl)phenol (6e) revealed the significant antiproliferative activity among the series of title compounds (6a-l). The compound, 6e showed maximum sensitivity towards CCRF-CEM, MCF-7, MOLT-4, T-47D, and SR cell lines with percent growth inhibitions (%GIs) of 79.92, 56.67, 39.62, 34.71 and 33.35, respectively. Furthermore, the compounds, 6e and 6c showed promising antioxidant activity with an IC50 value of 15.09 and 19.02 µM, respectively in DPPH free radicals (FR) scavenging activity.R Conclusion: The present study may support a significant value in cancer drug discovery programme.


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