Novel Conjugated Quinazolinone-Based Hydroxamic Acids: Design, Synthesis and Biological Evaluation

2020 ◽  
Vol 16 ◽  
Author(s):  
Tran Khac Vu ◽  
Nguyen Thi Thanh ◽  
Nguyen Van Minh ◽  
Nguyen Huong Linh ◽  
Nguyen Thi Phương Thao ◽  
...  

Background: Target-based approach to drug discovery currently attracts a great deal of interest from medicinal chemists in anticancer drug discovery and development. Histone deacetylase (HDAC) inhibitors represent an extensive class of targeted anti-cancer agents. Among the most explored structure moieties, hydroxybenzamides and hydroxypropenamides have been demonstrated to have potential HDAC inhibitory effects. Several compounds of these structural classes have been approved for clinical uses to treat different types of cancer, such as vorinostat and belinostat. Aims: This study aims at developing novel HDAC inhibitors bearing conjugated quinazolinone scaffolds with potential cytotoxicity against different cancer cell lines. Method: A series of novel N-hydroxyheptanamides incorporating conjugated 6-hydroxy-2 methylquinazolin-4(3H)- ones (15a-l) was designed, synthesized and evaluated for HDAC inhibitory potency as well as cytotoxicity against three human cancer cell lines, including HepG-2, MCF-7 and SKLu-1. Molecular simulations were finally performed to gain more insight into the structure-activity. relationships. Results: It was found that among novel conjugated quinazolinone-based hydroxamic acids synthesized, compounds 15a, 15c and 15f were the most potent, both in terms of HDAC inhibition and cytotoxicity. Especially, compound 15f displayed up to nearly 4-fold more potent than SAHA (vorinostat) in terms of cytotoxicity against MCF-7 cell line with IC50 value of 1.86 µM, and HDAC inhibition with IC50 value of 6.36 µM. Docking experiments on HDAC2 isozyme showed that these compounds bound to HDAC2 with binding affinities ranging from -10.08 to -14.93 kcal/mol compared to SAHA (-15.84 kcal/mol). It was also found in this research that most of the target compounds seemed to be more cytotoxic toward SKLu-1than MCF-7 and HepG-2. Conclusion: The resesrch results suggest that some hydroxamic acids could emerge for further evaluation and the results are well served as basics for further design of more potent HDAC inhibitors and antitumor agents.

2019 ◽  
Vol 19 (12) ◽  
pp. 1543-1557
Author(s):  
Nguyen V. Minh ◽  
Nguyen T. Thanh ◽  
Hoang T. Lien ◽  
Dinh T.P. Anh ◽  
Ho D. Cuong ◽  
...  

Background: Target-based approach to drug discovery currently attracts a great deal of interest from medicinal chemists in anticancer drug discovery and development worldwide, and Histone Deacetylase (HDAC) inhibitors represent an extensive class of targeted anti-cancer agents. Among the most explored structure moieties, hydroxybenzamides and hydroxypropenamides have been demonstrated to have potential HDAC inhibitory effects. Several compounds of these structural classes have been approved for clinical uses to treat different types of cancer, such as vorinostat and belinostat. Aims: This study aims at developing novel HDAC inhibitors bearing quinazolinone scaffolds with potential cytotoxicity against different cancer cell lines. Methods: A series of novel N-hydroxyheptanamides incorporating 6-hydroxy-2 methylquinazolin-4(3H)-ones (14a-m) was designed, synthesized and evaluated for HDAC inhibitory potency as well as cytotoxicity against three human cancer cell lines, including HepG-2 (liver cancer), MCF-7 (breast cancer) and SKLu-1 (lung cancer). Molecular simulations were finally carried out to gain more insight into the structure-activity relationships. ADME-T predictions for selected compounds were also performed to predict some important features contributing to the absorption profile of the present hydroxamic derivatives. Results: It was found that the N-hydroxyheptanamide 14i and 14j were the most potent, both in terms of HDAC inhibition and cytotoxicity. These compounds displayed up to 21-71-fold more potent than SAHA (suberoylanilide hydroxamic acid, vorinostat) in terms of cytotoxicity, and strong inhibition against the whole cell HDAC enzymes with IC50 values of 7.07-9.24μM. Docking experiments on HDAC2 isozyme using Autodock Vina showed all compounds bound to HDAC2 with relatively higher affinities (from -7.02 to -11.23 kcal/mol) compared to SAHA (-7.4 kcal/mol). It was also found in this research that most of the target compounds seemed to be more cytotoxic toward breast cancer cells (MCF-7) than liver (HepG2), and lung (SKLu-1) cancer cells.


Molecules ◽  
2018 ◽  
Vol 23 (11) ◽  
pp. 3043 ◽  
Author(s):  
Victoria Abzianidze ◽  
Petr Beltyukov ◽  
Sofya Zakharenkova ◽  
Natalia Moiseeva ◽  
Jennifer Mejia ◽  
...  

New derivatives of phaeosphaeride A (PPA) were synthesized and characterized. Anti-tumor activity studies were carried out on the HCT-116, PC3, MCF-7, A549, К562, NCI-Н929, Jurkat, THP-1, RPMI8228 tumor cell lines, and on the HEF cell line. All of the compounds synthesized were found to have better efficacy than PPA towards the tumor cell lines mentioned. Compound 6 was potent against six cancer cell lines, HCT-116, PC-3, K562, NCI-H929, Jurkat, and RPMI8226, showing a 47, 13.5, 16, 4, 1.5, and 7-fold increase in anticancer activity comparative to those of etoposide, respectively. Compound 1 possessed selectivity toward the NCI-H929 cell line (IC50 = 1.35 ± 0.69 μM), while product 7 was selective against three cancer cell lines, HCT-116, MCF-7, and NCI-H929, each having IC50 values of 1.65 μM, 1.80 μM and 2.00 μM, respectively.


2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Ahmad M. Eid ◽  
Mohammed Hawash ◽  
Johnny Amer ◽  
Abdullah Jarrar ◽  
Samira Qadri ◽  
...  

Cancer now is one of the leading causes of mortality in the world. There has been a lot of effort to discover new anticarcinogenic agents that allow treatment with fewer side effects. A series of isoxazole-carboxamide derivatives (2a–2g) were synthesised and evaluated for their cytotoxic activity against breast (MCF-7), cervical (HeLa), and liver (Hep3B) cancer cell lines and their antioxidant activity in the 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay. The results showed that 2d and 2e were the most active compounds against Hep3B cells, with a half-maximal inhibitory concentration (IC50) of around 23 μg/ml; 2d showed the highest activity against HeLa cells, with an IC50 15.48 μg/ml. However, 2a had the lowest IC50 (39.80 μg/ml) against MCF-7 cells. By contrast, compound 2g was inactive against all cancer cell lines, with IC50 values >400 μg/ml. Both 2d and 2e reduced Hep3B secretion of alpha-fetoprotein (to 1829.33 ± 65.91   ng / ml and 1758.66 ± 54.04   ng / ml , respectively). Furthermore, in cell cycle analysis, 2d and 2e induced a delay in the G2/M phase of 18.07%, which is similar to the doxorubicin positive control. Moreover, 2d and 2e reduced the necrosis rate of Hep3B threefold and instead shifted the cells to apoptosis. Our results indicate that 2d and 2e have potent and promising anticancer activity. However, compound 2a was the most active as antioxidant agent ( I C 50 = 7.8 ± 1.21   μ g / ml ) compared with Trolox as a positive control (IC50 2.75 μg/ml).


2021 ◽  
Vol 27 (1) ◽  
pp. 133-141
Author(s):  
Mohammed Hawash ◽  
Nidal Jaradat ◽  
Noor Bawwab ◽  
Kamilah Salem ◽  
Hadeel Arafat ◽  
...  

Abstract The present study aimed to design and synthesize a series of phenyl-isoxazole-carboxamide derivatives and investigate their antitumor and antioxidant activities. The in vitro cytotoxic evaluation was conducted using the MTS assay against four cancer cell lines: hepatocellular carcinoma (Hep3B and HepG2), cervical adenocarcinoma (HeLa), breast carcinoma (MCF-7), in addition to the normal cell line (Hek293T). Besides, the antioxidant activity was evaluated using a 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay. All obtained compounds were found to have potent to moderate activities against Hep3B and MCF-7 cancer cells lines, except compound 2e. It was found that compound 2a has potent activity against HeLa and Hep3B cancer cell lines with IC50 values of 0.91 and 8.02 µM, respectively. The IC50 dose range of the tested compounds against Hep3B was 5.96–28.62 µM, except for 2e, compared with doxorubicin, which has an IC50 value of 2.23 µM. Also, the IC50 value range of the compounds against Hek293T was 112.78–266.66 µM, compared with doxorubicin, which has an IC50 dose of 0.581 µM. The antioxidant activity of the synthesized compounds was weak, and compound 2d showed moderate activity against the DPPH enzyme with an IC50 value of 138.50 µM in comparison with Trolox, which has an IC50 dose of 37.23 µM.


Author(s):  
Omid K. Arjomandi ◽  
Saiedeh Almasi ◽  
Leila Hosseinzadeh ◽  
Mahboubeh Kavoosi ◽  
Hadi Adibi

Background: Curcumin is a natural polyphenol and lead compound of the rhizomes of curcuma longa that it has been widely used for pharmacological activities. Objective: In this study, series of novel derivatives of curcumin, which this group was linked to a 2-amino-4-phenylpyran-3-carbonitrile system, have been synthesized and tested for their antitumor activities in-vitro against a panel of three human cancer cell lines (MCF-7, A2780, and U-87MG). Method: The in-vitro cytotoxic activity of the synthesized compounds was tested on three cancer cell lines (MCF-7, A2780, and U87MG) using MTT colorimetric assay. Meanwhile, the ability of the active compounds to induce apoptosis in cancer cells was investigated by examination of caspase-3 and caspase-9 and mitochondrial membrane potential assay. Results: Under relatively mild conditions in ethanol, the reaction of a series of substrates afforded the corresponding derivatives of curcumin mostly in good yields (13 analogues, 48-94% yields). Bioassay results indicated that compounds L6 (para-Bromo), L9 (paraNitro) and L12 (meta-Methoxy) were the most active members in this study demonstrating potent activities against A2780 cancer cells and experimental results of fluorescent staining and flow cytometry analysis revealed that L6 and L9 could induce apoptosis in A2780 cells with apoptosis ratios of about 40% and 46%, respectively at 24 h of treatment at 15.35 µM and 23µM in A2780 cells. On the other hand, they could increase the caspase-3 activity slightly (10%), while had no significant impact on the activities of caspase-9. Conclusion: Those two derivatives could be considered as useful templates for future development to obtain more potent antitumor agents.


2018 ◽  
Vol 8 (3) ◽  
pp. 159 ◽  
Author(s):  
Meghan Fragis ◽  
Abdulmonem I. Murayyan ◽  
Suresh Neethirajan

Background: Breast cancer is the most commonly diagnosed cancer and the second leading cause of cancer deaths among Canadian women. Cancer management through changes in lifestyle, such as increased intake of foods rich in dietary flavonoids, have been shown to decrease the risk associated with breast, liver, colorectal, and upper-digestive cancers in epidemiologic studies. Onions are high in flavonoid content and one of the most common vegetables. Additionally, onions are used in most Canadian cuisines.Methods: We investigated the effect of five prominent Ontario grown onion (Stanley, Ruby Ring, LaSalle, Fortress, and Safrane) extracts on two subtypes of breast cancer cell lines: a triple negative breast cancer line MDA-MB-231 and an ER+ breast cancer line MCF-7.Results: These onion extracts elicited strong anti-proliferative, anti-migratory, and cytotoxic activities on both the cancer cell lines. Flavonoids present in these onion extracts induced apoptosis, cell cycle arrest in the G2/M phase, and a reduction in mitochondrial membrane potential at dose-dependent concentrations. Onion extracts were more effective against MDA-MB-231 compared to the MCF-7 cell line. Conclusion: In this study, we investigated the extracts synthesized from Ontario-grown onion varieties in inducing anti-migratory, cytostatic, and cytotoxic activities in two sub-types of human breast cancer cell lines. Anti-tumor activity of these extracts depends upon the varietal and can be formulated into nutraceuticals and functional foods for the wellbeing of cancer patients. Overall, the results suggest that onion extracts are a good source of flavonoids with anti-cancerous properties.Keywords: onion extracts; flavonoids; anti-proliferative; breast cancer; cytotoxic activity


2020 ◽  
Vol 17 (5) ◽  
pp. 345-351
Author(s):  
Syndla Premalatha ◽  
G. Rambabu ◽  
Islavathu Hatti ◽  
Dittakavi Ramachandran

A new series of 3-(3,4,5-trimethoxyphenyl)-5-(2-(5-arylbenzo[b]thiophen-3-yl)oxa zol-5- yl)isoxazole derivatives were designed and synthesized. All these derivatives were evaluated for their anticancer activity against various human cancer cell lines such as MCF-7 (breast cancer), A549 (lung cancer), DU-145 (prostate cancer) and MDA MB-231 (breast cancer)-four human cancer cell lines by using MTT assay. Here, etoposide was used as a standard reference drug and most of the compounds were exhibited good anticancer activity with respect to cell lines. Among all compounds, five compounds 11b, 11c, 11f, 11i and 11j showed more potent activity than standard drug, in which, compound 11f was the most promising compound.


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