The Design and Synthesis of Novel Phenothiazine Derivatives as Potential Cytotoxic Agents

2019 ◽  
Vol 17 (1) ◽  
pp. 57-67
Author(s):  
Yepeng Luan ◽  
Jinyi Liu ◽  
Jianjun Gao ◽  
Jinhua Wang

Background: Cancer incidence and mortality have been increasing and cancer is still the leading cause of death all over the world. Despite the enormous progress in cancer treatment, many patients died of ineffective chemotherapy and drug resistance. Therefore, the design and development of anti-cancer drugs with high efficiency and low toxicity is still one of the most challenging tasks. Tricyclic heterocycles, such as phenothiazine, are always important sources of scaffolds for anti-cancer drug discovery. Methods: In this work, ten new urea-containing derivatives of phenothiazine coupled with different kinds of amine motifs at the endpoint through a three carbon long spacer were designed and synthesized. The structures of the synthesized compounds were elucidated and confirmed by 1H NMR and HRMS. All the synthesized compounds were tested for their antitumor activity in vitro against the proliferation of PC-3 cells, and the compounds with best potency entered further cytotoxicity evaluations against other 22 human tumor cell lines. Mechanism was also studied. Results: From all data, it showed that among all 10 target compounds, TTi-2 showed the best effect in inhibiting the proliferation of 23 human cancer cell lines while TTi-2 without obvious inhibitory effect on normal cell. Furthermore, our results also showed that TTi-2 could inhibit migration, invasion and colony formation of MDA-MB-231 cells. Finally, TTi-2 can induce arrest of cell cycle at G0/G1 phase and cell apoptosis by activating the caspase 3 activity. Conclusion: All these results suggested that TTi-2 might be used as a promising lead compound for anticancer drug development.

Drug Research ◽  
2021 ◽  
Author(s):  
Bilqees Sameem ◽  
Ebrahim Saeedian Moghadam ◽  
Majid Darabi ◽  
Zahra Shahsavari ◽  
Mohsen Amini

Abstract Background During the last recent years, several anti-cancer agents were introduced for the treatment of diverse kinds of cancer. Despite their potential in the treatment of cancer, drug resistance and adverse toxicity such as peripheral neuropathy are some of the negative criteria of anti-cancer agents and for this reason, the design and synthesis of new anti-cancer agents are important. Objective Design, synthesis, and anticancer activity evaluation of some pyrazole derivatives. Methods A series of Target compounds were prepared using multistep synthesis. Their cytotoxic activity against three different human cancer cell lines namely human colon carcinoma cells (HT-29), epithelial carcinoma cells (U-87MG), pancreatic cancerous cells (Panc-1) as well as AGO1522 normal cell line using in vitro 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay was investigated. Results 1,3-Diaryl-5-(3,4,5-trimethoxyphenyl)-4,5-dihydro-1H-pyrazole and 1,3-Diaryl-5-(3,4,5-trimethoxyphenyl)- 1H-pyrazole were synthesized in good yields and their structure and purity were confirmed using 1H-NMR, 13C-NMR, and elemental analysis. Generally, the synthesized scaffolds exhibited good cytotoxicity against cancerous cell lines in comparison to the reference standard, paclitaxel. Compounds 3a and 3c, in Annexin V/ PI staining assay, exerted remarkable activity in apoptosis induction in HT-29 cell lines. Both of them also led to cell cycle arrest in the sub-G1 phase which is inconsistent with the results of apoptosis assay. Conclusion Concerning obtained results, it is interesting to synthesis more pyrazole derivatives as anticancer agents.


2020 ◽  
Vol 17 (6) ◽  
pp. 459-465
Author(s):  
Soghra Khabnadideh ◽  
Zeinab Faghih ◽  
Leila Zamani ◽  
Kamiar Zomorodian ◽  
Bi Bi Fatemeh Mirjalili ◽  
...  

A simple and efficient method was developed for the synthesis of pyrazole derivatives via a one-pot reaction of 1,3-diketone and substituted hydrazines in the presence of nano-SnCl4/SiO2 as a mild catalyst. A series of some pyrazole derivatives (P1-P11) was synthesized and evaluated as antifungal and anti-cancer agents. Compounds P10 and P11 were demonstrated. The antimicrobial activities of the synthetic compounds showed that compounds P10 and P11 most excellently inhibited the growth of dermatophytes or Aspergillus species, respectively. Therefore, the cytotoxic activities of these compounds on two human cancer cell lines, A549 (lung cancer) and MCF-7 (breast cancer) were further assessed. Hence, results demonstrated that beside antifungal activity, P10 had also desirable cytotoxic effect on investigated cancerous cell lines, even higher than cisplatin.


Diseases ◽  
2018 ◽  
Vol 6 (4) ◽  
pp. 85 ◽  
Author(s):  
Jenna Gordon ◽  
Mark Brown ◽  
Melissa Reynolds

Determination of therapeutic efficacy is a major challenge in developing treatment options for cancer. Prior to in vivo studies, candidate therapeutics are evaluated using cell-based in vitro methods to assess their anti-cancer potential. This review describes the utility and limitations of evaluating therapeutic efficacy using human tumor-derived cell lines. Indicators for therapeutic efficacy using tumor-derived cell lines include cell viability, cell proliferation, colony formation, cytotoxicity, cytostasis, induction of apoptosis, and cell cycle arrest. Cell panel screens, 3D tumor spheroid models, drug-drug/drug-radiation combinatorial analysis, and invasion/migration assays reveal analogous in vitro information. In animal models, cellular assays can assess tumor micro-environment and therapeutic delivery. The utility of tumor-derived cell lines for efficacy determination is manifest in numerous commercially approved drugs that have been applied in clinical management of cancer. Studies reveal most tumor-derived cell lines preserve the genomic signature of the primary tumor source and cell line-based data is highly predictive of subsequent clinical studies. However, cell-based data often disregards natural system components, resulting in cell autonomous outcomes. While 3D cell culture platforms can counter such limitations, they require additional time and cost. Despite the limitations, cell-based methods remain essential in early stages of anti-cancer drug development.


2021 ◽  
Vol 18 ◽  
Author(s):  
Tran Khac Vu ◽  
Bach Xuan Nguyen ◽  
Linh Nguyen Pham Duy ◽  
Thuc Bao Nguyen Truong ◽  
Anh Tuan Phung ◽  
...  

Background: In this study, two novel hybrid series of artemisinin and quinazolinones were synthesized and evaluated in vitro cytotoxicity against two human cancer cell lines, including SKLu-1 (lung cancer), MCF- 7 (breast cancer). The bio-assay results indicated that most of the target compounds exhibited cytotoxic activities against both human cancer cell lines tested, and seemed to be more cytotoxic toward the breast (MCF-7) cancer cells than lung (SKLu-1) cancer cells. Among the synthesized artemisinin hybrids, the compound 13d containing a quinazolinone conjugated system exhibited the most potent cytotoxicity against the SKLu-1 and MCF-7 cell lines with IC50 values of 1.62 and 0.77 µM, respectively. Objective: This study aims at developing novel hybrids of artemisinin and quinazolinones as anti-cancer agents. Method: A series of novel hybrids were designed, synthesized and evaluated for cytotoxicity against two human cancer cell lines, including SKLu-1 and MCF-7 using SRB method. Results : All thirteen hybrids of artemisinin with quinazolinone exhibited cytotoxic activity against two tested cancer cell lines, in which the compound 13d exhibited the most potent cytotoxicity against the SKLu-1 and MCF-7 cell lines with IC50 values of 1.62 and 0.77 µM, respectively. Conclusion: The research results suggest that some compounds could be considered as leads for future design of hybrids and have the potential for further studies in the field of anti-cancer agent development.


Antioxidants ◽  
2018 ◽  
Vol 7 (11) ◽  
pp. 151 ◽  
Author(s):  
Sander Bekeschus ◽  
Eric Freund ◽  
Kristian Wende ◽  
Rajesh Gandhirajan ◽  
Anke Schmidt

Increasing numbers of cancer deaths worldwide demand for new treatment avenues. Cold physical plasma is a partially ionized gas expelling a variety of reactive oxygen and nitrogen species, which can be harnesses therapeutically. Plasmas and plasma-treated liquids have antitumor properties in vitro and in vivo. Yet, global response signatures to plasma treatment have not yet been identified. To this end, we screened eight human cancer cell lines to investigate effects of low-dose, tumor-static plasma-treated medium (PTM) on cellular activity, immune-modulatory properties, and transcriptional levels of 22 redox-related genes. With PTM, a moderate reduction of metabolic activity and modest modulation of chemokine/cytokine pattern and markers of immunogenic cell death was observed. Strikingly, the Nuclear factor (erythroid-derived 2)-like 2 (nrf2) target heme oxygenase 1 (hmox1) was upregulated in all cell lines 4 h post PTM-treatment. nrf2 was not changed, but its baseline expression inversely and significantly correlated with hmox1 expression after exposure to PTM. Besides awarding hmox1 a central role with plasma-derived oxidants, we present a transcriptional redox map of 22 targets and chemokine/cytokine secretion map of 13 targets across eight different human tumor cell lines of four tumor entities at baseline activity that are useful for future studies in this field.


2020 ◽  
Vol 16 (8) ◽  
pp. 1172-1180
Author(s):  
Radhika Chelamalla ◽  
Ajitha Makula

Background: Progress in the developments of pyrimidine-coumarin moiety as an IDO inhibitor is still continuing with an outcome of the good scaffold as pyrimidine as well as coumarin individually for anticancer activity. Hence we proposed a suitable approach for the synthesis of pyrimidinecoumarin moieties in a combined form from the results of docking studies. Objective: As part of our ongoing research towards the development of novel cytotoxic agents, the synthesis and cytotoxic activity of a series of N'-(1-(6-methyl-2-oxo/thioxo-4-sub phenyl-1,2,3,4- tetrahydropyrimidin-5-yl)vinyl)-2-oxo-2H-chromene-3-carbohydrazide derivatives are discussed in this study. Methods: N'-(1-(6-methyl-2-oxo/thioxo-4-sub phenyl-1,2,3,4-tetrahydropyrimidin-5-yl)vinyl)-2-oxo- 2H-chromene-3-carbohydrazide derivatives were designed, synthesized and evaluated for cytotoxic activity. The structures were confirmed by IR, 1H NMR, C13NMR, Mass spectroscopy. All the synthesized compounds were evaluated using in vitro MTT assay against HeLa and HepG2 cell lines. Results: Compound 6g showed inhibitory activity against IDO with IC50 values at nanomolar range in docking studies and compounds 6g and 6f also showed significant cytotoxic activity on human cancer cell lines like HepG2 and HeLa using in vitro MTT assay. Conclusion: This work showed that the coumarin containing pyrimidine derivatives are found to be the most potent against IDO through docking studies and cytotoxic against cell lines compared with cisplatin. This might give the information for the development of new series of compounds against IDO.


Author(s):  
SALWA EL-HALLOUTY ◽  
ASHWAQ BATAWI ◽  
MANAL SHAFI ◽  
ESAM RASHWAN ◽  
EZZELDIN ELHAWARY ◽  
...  

Objective: Five methanol plant extracts namely, Euphorbia hierosolymitana, Dracaena marginata, Cordyline terminalis, and Sapium sebifera were screened in vitro for their cytotoxic effect on human tumor cell lines; namely, PC-3, HepG-2, HCT-116, and MCF-7 (prostate, liver, colon, and breast cancer) and human normal cell lines, namely, BJ-1. Methods: E. hierosolymitana (extract A) selectively inhibited HCT-116 cell proliferation with IC50 of 4.22 μg/ml, both Dracaena marginata (extract B) (bark, leaves, and branches) showed moderate cytotoxicity on MCF-7 with IC50 of 22.4 and 48.2 μg/ml, respectively. The remaining two extracts showed minimal to insignificant percentage inhibition on all cell lines. Results: E. hierosolymitana extract was selected for further studying, where the effect of the extract on the HCT116 cells showed a downregulation of her2 and Bcl-2 gene and overexpression of the Bax gene. Flow cytometry analysis was also performed to understand the effect of E. hierosolymitana on the apoptosis induction and the cell cycle. The results showed the induction of early and late apoptosis by 5.81 and 10.01%, respectively. Conclusion: Our results infer that E. hierosolymitana has a promising chance in fighting colorectal cancer due to its high cytotoxic effects on HCT116 cancer cells while having minimal effects on the BJ-1 normal cell lines.


2020 ◽  
Vol 20 (10) ◽  
pp. 1241-1249
Author(s):  
Hong-Chuan Liu ◽  
Li-Ming Qiao ◽  
Wei Zheng ◽  
Zhao-Bao Xiang ◽  
Hai-Sheng Chen ◽  
...  

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.


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