scholarly journals Design, synthesis and biological evaluation of novel 5-bromo derivatives of indole phytoalexins

2020 ◽  
Author(s):  
Mariana Budovská ◽  
Ivana Selešová ◽  
Viera Tischlerová ◽  
Radka Michalková ◽  
Ján Mojžiš
Keyword(s):  
Human Cancer ◽  
Type A ◽  
Biological Evaluation ◽  
Synthetic Approach ◽  
Design Synthesis ◽  
Human Cancer Cell Lines ◽  
Drug Candidates ◽  
Indole Phytoalexins ◽  
Derivatives Of

The increasing diversity of small molecule libraries is a major source for the discovery of new drug candidates. In term of this trend, we report the synthesis five series 5-bromosubstituted derivatives of indole phytoalexins Type A-E using straightforward synthetic approach. Novel compounds were screened in vitro for antiproliferative/cytotoxic activity against seven human cancer cell lines by MTT assay. Evaluation of their antiproliferative potency showed that the activity of some analogues was better or comparable to that of cisplatin and at the same time the toxicity of these compounds on 3T3 cells was lower than that of cisplatin. We found that all 5-bromosubstituted analogues of indole phytoalexins Type A-E exhibited lower or approximately the same activities as a previously studied corrensponding non-brominated compounds.

scholarly journals Design, Synthesis, and Cytotoxic Evaluation of Novel Lupane Triterpenoid Derived Hydroxamates

2020 ◽  
Vol 15 (6) ◽  
pp. 1934578X2093196
Author(s):  
Dang Thi Tuyet Anh ◽  
Dinh Thi Cuc ◽  
Le Nhat Thuy Giang ◽  
Nguyen Thi Hien ◽  
Vu Ngoc Doan ◽  
...  
Keyword(s):  
Anticancer Agents ◽  
Human Cancer ◽  
Human Cancer Cell ◽  
Design Synthesis ◽  
Human Cancer Cell Lines ◽  
Lupane Triterpenoids ◽  
Lead Compounds ◽  
Diphenyltetrazolium Bromide ◽  
Derivatives Of

A series of new hydroxamate derivatives of lupane triterpenoids has been designed and successfully synthesized. The synthesized compounds were evaluated for their in vitro antitumor activity using the 3-[4,5-dimethylthiazol-2-yl]−2,5-diphenyltetrazolium bromide-based assay against the human cancer cell lines KB and HepG2. Most of these derivatives possess at least moderate cytotoxic activity and the hydroxamate derivative compounds 3c, 3e, 7a, and 15b could be lead compounds for further optimization to develop novel anticancer agents.

scholarly journals Design, Synthesis, and Biological Evaluation of Aromatic Amide-Substituted Benzimidazole-Derived Chalcones. The Effect of Upregulating TP53 Protein Expression

Molecules ◽  
2020 ◽  
Vol 25 (5) ◽  
pp. 1162
Author(s):  
Lintao Wu ◽  
Yuting Yang ◽  
Zhijun Wang ◽  
Xi Wu ◽  
Feng Su ◽  
...  
Keyword(s):  
Antitumor Activity ◽  
Human Cancer ◽  
Biological Evaluation ◽  
Mechanistic Study ◽  
Design Synthesis ◽  
Human Cancer Cell Lines ◽  
Aromatic Amide ◽  
Synthesis And Biological Evaluation ◽  
Tp53 Protein

A series of benzimidazole-derived chalcones containing aromatic amide substituent were designed and synthesized. All of the chalcone compounds were tested for their in vitro antitumor activity against human cancer cell lines (HCT116, HepG2, A549, and CRL-5908). The antiproliferative activity of compounds 3, 6, 9, 14, 15, 16 against HCT116 cells was significantly better than that that of 5-Fluorouracil (IC50: 94.63 µM). The antitumor activity of these compounds showed obvious differences between the wild type HCT116 and mutant HCT116 (TP53−/−) cells. A preliminary mechanistic study suggested that these compounds act by upregulating the expression of TP53 protein in tumor cells without inhibiting the MDM2-TP53 interaction.

Synthesis and Cytotoxicity Assessment of Novel 7-O- and 14-O-Derivatives of Glaucocalyxin A

2020 ◽  
Vol 20 (10) ◽  
pp. 1241-1249
Author(s):  
Hong-Chuan Liu ◽  
Li-Ming Qiao ◽  
Wei Zheng ◽  
Zhao-Bao Xiang ◽  
Hai-Sheng Chen ◽  
...  
Keyword(s):  
Acute Toxicity ◽  
Cell Lines ◽  
Cancer Cell ◽  
Human Cancer ◽  
Folk Medicine ◽  
A549 Cells ◽  
Cancer Cell Lines ◽  
Human Cancer Cell Lines ◽  
Derivatives Of

Background: Rabdosia japonica has been historically used in China as a popular folk medicine for the treatment of cancer, hepatitis, and gastricism. Glaucocalyxin A (GLA), an ent-kaurene diterpene isolated from Rabdosia japonica, is one of the main active ingredients showing potent inhibitory effects against several types of tumor cells. To the best of our knowledge, studies regarding the structural modification and Structure- Activity Relations (SAR) of this compound have not yet been reported. Objective: The aim of this study was to discover more potent derivatives of GLA and investigate their SAR and cytotoxicity mechanisms. Methods: Novel 7-O- and 14-O-derivatives of GLA were synthesized by condensation of acids or acyl chloride. The anti-tumor activities of these derivatives against various human cancer cell lines were evaluated in vitro by MTT assays. Apoptosis assays of compound 17 (7,14-diacylation product) were performed on A549 and HL-60 cells by flow cytometry and TUNNEL. The acute toxicity of this compound was tested on mice, at the dose of 300mg per kg body weight. Results: Seventeen novel 7-O- and 14-O-derivatives of GLA (1-17) were synthesized. These compounds showed potent cytotoxicity against the tested cancer cell lines, and almost all of them were found to be more cytotoxic than GLA and oridonin. Of the synthesized derivatives, compound 17 presented the greatest cytotoxicity, with IC50 values of 0.26μM and 1.10μM in HL-60 and CCRF-CEM cells, respectively. Furthermore, this compound induced weak apoptosis of A549 cells but showed great potential in stimulating the apoptosis of HL- 60 cells. Acute toxicity assays indicated that compound 17 is relatively safer. Conclusion: The results reported herein indicate that the synthesized GLA derivatives exhibited greater cytotoxicity against leukemia cells than against other types of tumors. In particular, 7,14-diacylation product of GLA was found to be an effective anti-tumor agent. However, the cytotoxicity mechanism of this product in A549 cells is expected to be different than that in other tumor cell lines. Further research is needed to confirm this hypothesis.

scholarly journals Synthesis, characterization and biological activity of organometallic derivatives of the antimalarial drug mefloquine as new antischistosomal drug candidates

MedChemComm ◽  
2018 ◽  
Vol 9 (11) ◽  
pp. 1905-1909 ◽  
Author(s):  
Faustine d'Orchymont ◽  
Jeannine Hess ◽  
Gordana Panic ◽  
Marta Jakubaszek ◽  
Lea Gemperle ◽  
...  
Keyword(s):  
Biological Activity ◽  
Antimalarial Drug ◽  
Biological Evaluation ◽  
Design Synthesis ◽  
Drug Candidates ◽  
Derivatives Of

The design, synthesis, characterization and biological evaluation of new ferrocenyl and ruthenocenyl derivatives of the antimalarial mefloquine is described.

scholarly journals Design, synthesis and biological evaluation of imidazopyridine–propenone conjugates as potent tubulin inhibitors

MedChemComm ◽  
2017 ◽  
Vol 8 (5) ◽  
pp. 1000-1006 ◽  
Author(s):  
Ibrahim Bin Sayeed ◽  
V. Lakshma Nayak ◽  
Mohd Adil Shareef ◽  
Neeraj Kumar Chouhan ◽  
Ahmed Kamal
Keyword(s):  
Antitumor Activity ◽  
Cell Lines ◽  
Cancer Cell ◽  
Human Cancer ◽  
Biological Evaluation ◽  
Human Cancer Cell ◽  
Design Synthesis ◽  
Human Cancer Cell Lines ◽  
Tubulin Inhibitors ◽  
Synthesis And Biological Evaluation

A library of imidazopyridine–propenone conjugates (8a–8u) were synthesized and evaluated for their antitumor activity against four human cancer cell lines.

scholarly journals Chloroquine Urea Derivatives: Synthesis and Antitumor Activity in Vitro

2018 ◽  
Vol 68 (4) ◽  
pp. 471-483 ◽  
Author(s):  
Kristina Pavić ◽  
Zrinka Rajić ◽  
Zvonimir Mlinarić ◽  
Lidija Uzelac ◽  
Marijeta Kralj ◽  
...  
Keyword(s):  
Antitumor Activity ◽  
Anticancer Agents ◽  
Human Cancer ◽  
Human Cancer Cell ◽  
Urea Derivatives ◽  
Design Synthesis ◽  
Human Cancer Cell Lines ◽  
Lead Compounds ◽  
Insight Into

Abstract In the current paper, we describe the design, synthesis and antiproliferative screening of novel chloroquine derivatives with a quinoline core linked to a hydroxy or halogen amine through a flexible aminobutyl chain and urea spacer. Synthetic pathway leading to chloroquine urea derivatives 4-10 includes two crucial steps: i) synthesis of chloroquine benzotriazolide 3 and ii) formation of urea derivatives through the reaction of compound 3 with the corresponding amine. Testing of antiproliferative activity against four human cancer cell lines revealed that chloroquine urea derivatives 9 and 10 with aromatic moieties show activity at micromolar concentrations. Therefore, these molecules represent interesting lead compounds that might provide an insight into the design of new anticancer agents.

scholarly journals Novel Steroidal 5α,8α-Endoperoxide Derivatives with Semicarbazone/Thiosemicarbazone Side-chain as Apoptotic Inducers through an Intrinsic Apoptosis Pathway: Design, Synthesis and Biological Studies

Molecules ◽  
2020 ◽  
Vol 25 (5) ◽  
pp. 1209 ◽  
Author(s):  
Liwei Ma ◽  
Haijun Wang ◽  
Jing Wang ◽  
Lei Liu ◽  
Song Zhang ◽  
...  
Keyword(s):  
Hepg2 Cells ◽  
Antitumor Agents ◽  
Human Cancer ◽  
Side Chain ◽  
Design Synthesis ◽  
Apoptosis Pathway ◽  
Human Cancer Cell Lines ◽  
Biological Studies ◽  
Intrinsic Apoptosis Pathway

A series of novel steroidal 5α,8α-endoperoxide derivatives bearing semicarbazone (7a–g) or thiosemicarbazone (7h–k) side chain were designed, synthesized and evaluated for their cytotoxicities in four human cancer cell lines (HepG2, HCT-116, MCF-7, and A549) using the MTT assay in vitro. The results showed that compound 7j exhibited significant cytotoxic activity against HepG2 cells (IC50 = 3.52 μM), being more potent than ergosterol peroxide. Further cellular mechanism studies in HepG2 cells indicated that compound 7j triggered the mitochondrial-mediated apoptosis by decreasing mitochondrial membrane potential (MMP), which was associated with up-regulation of Bax, down-regulation of Bcl-2, activation levels of the caspase cascade, and formation of reactive oxygen species (ROS). The above findings indicated that compound 7j may be used as a promising skeleton for antitumor agents with improved efficacy.

Design, Synthesis, and Cytotoxic Activity of New Tubulysin Analogues

Synlett ◽  
2021 ◽  
Author(s):  
Anh Tuan Tran ◽  
Chien Van Tran ◽  
Hai Van Le ◽  
Loc Van Tran ◽  
Thao Thi Phuong Tran ◽  
...  
Keyword(s):  
Cytotoxic Activity ◽  
Cell Lines ◽  
Cancer Cell ◽  
Human Cancer ◽  
Cancer Cell Lines ◽  
Cytotoxic Activities ◽  
Design Synthesis ◽  
Human Cancer Cell Lines ◽  
Ht 29

AbstractSynthesis of tubulysin analogues, containing an N-methyl substituent on tubuvaline-amide together with the replacement of either the hydrophobic N-terminal N-methyl pipecolic acid (Mep) or at both N- and C- terminal peptides with available heteroaromatic acids and an unsaturated tubuphenylalanine moiety, respectively, were described. The in vitro cytotoxic activity by SRB assay on five cancer cell lines for sixteen tubulysins was evaluated. Among them, five analogues exhibited strong cytotoxic activities against five human cancer cell lines, including human breast carcinoma (MCF7), human colorectal adenocarcinoma (HT-29), HL-60, SW-480, human lung adenocarcinoma (A459). Interestingly, one analogue showed the strongest cytotoxicity on all five tested cell lines even much higher toxicity than the reference compound ellipticine.

Design, synthesis, and biological evaluation of novel 5-bromo derivatives of indole phytoalexins

2020 ◽  
Vol 151 (11) ◽  
pp. 1737-1758
Author(s):  
Mariana Budovská ◽  
Ivana Selešová ◽  
Viera Tischlerová ◽  
Radka Michalková ◽  
Ján Mojžiš
Keyword(s):  
Biological Evaluation ◽  
Design Synthesis ◽  
Indole Phytoalexins ◽  
Synthesis And Biological Evaluation ◽  
Derivatives Of
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