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Ravish A, Narasimhachar BC, Xi Z, Vishwanath D, Mohan A, Gaonkar SL, Chandrashekara PG, Ahn KS, Pandey V, Lobie PE, Basappa B. Development of Piperazine- and Oxazine-Linked Pyrimidines as p65 Subunit Binders of NF-κB in Human Breast Cancer Cells. Biomedicines 2023; 11:2716. [PMID: 37893090 PMCID: PMC10604619 DOI: 10.3390/biomedicines11102716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 09/01/2023] [Accepted: 09/12/2023] [Indexed: 10/29/2023] Open
Abstract
Nuclear factor kappa B (NF-κB) is a potential therapeutic target in breast cancer. In the current study, a new class of oxazine- and piperazine-linked pyrimidines was developed as inhibitors of NF-κB, overcoming the complexity of the oxazine structure found in nature and enabling synthesis under laboratory conditions. Among the series of synthesized and tested oxazine-pyrimidine and piperazine-pyrimidine derivatives, compounds 3a and 5b inhibited breast cancer cell (MCF-7) viability with an IC50 value of 9.17 and 6.29 µM, respectively. In silico docking studies showed that the pyrimidine ring of 3a and the 4-methoxybenzyl thiol group of 5b could strongly bind the p65 subunit of NF-κB, with the binding energies -9.32 and -7.32 kcal mol-1. Furthermore, compounds 3a and 5b inhibited NF-κB in MCF-7 breast cancer cells. In conclusion, we herein report newer structures that target NF-κB in BC cells.
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Affiliation(s)
- Akshay Ravish
- Laboratory of Chemical Biology, Department of Studies in Organic Chemistry, University of Mysore, Mysore 570006, Karnataka, India; (A.R.); (D.V.); (A.M.)
| | - Bhanuprakash C. Narasimhachar
- Department of Chemistry, Yuvaraja’s College, University of Mysore, Mysuru 570005, Karnataka, India; (B.C.N.); (P.G.C.)
| | - Zhang Xi
- Shenzhen Bay Laboratory, Shenzhen 518055, China;
| | - Divakar Vishwanath
- Laboratory of Chemical Biology, Department of Studies in Organic Chemistry, University of Mysore, Mysore 570006, Karnataka, India; (A.R.); (D.V.); (A.M.)
| | - Arunkumar Mohan
- Laboratory of Chemical Biology, Department of Studies in Organic Chemistry, University of Mysore, Mysore 570006, Karnataka, India; (A.R.); (D.V.); (A.M.)
| | - Santosh L. Gaonkar
- Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India;
| | | | - Kwang Seok Ahn
- Department of Science in Korean Medicine, Kyung Hee University, 24 Kyungheedaero, Dongdaemungu, Seoul 02447, Republic of Korea;
| | - Vijay Pandey
- Tsinghua Berkeley Shenzhen Institute, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China;
- Institute of Biopharmaceutical and Health Engineering, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - Peter E. Lobie
- Shenzhen Bay Laboratory, Shenzhen 518055, China;
- Tsinghua Berkeley Shenzhen Institute, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China;
- Institute of Biopharmaceutical and Health Engineering, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - Basappa Basappa
- Laboratory of Chemical Biology, Department of Studies in Organic Chemistry, University of Mysore, Mysore 570006, Karnataka, India; (A.R.); (D.V.); (A.M.)
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Cytotoxicity and Genotoxicity of Biogenic Silver Nanoparticles in A549 and BEAS-2B Cell Lines. Bioinorg Chem Appl 2022; 2022:8546079. [PMID: 36193250 PMCID: PMC9525761 DOI: 10.1155/2022/8546079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 08/18/2022] [Accepted: 08/26/2022] [Indexed: 01/09/2023] Open
Abstract
Introduction. Biogenic silver nanoparticles (AgNPs-GA) were successfully synthesised using Garcinia atroviridis leaf extract as a reducing agent, which has ethnopharmacological claims against various diseases including cancer. Aim of the Study. Aim of the study is to discover whether AgNPs-GA has cytotoxic and genotoxic effects on cancerous (A549) and noncancerous (BEAS-2B) human lung cells. Materials and Methods. The cytotoxicity profiles of AgNPs-GA were characterized by MTT assay, intracellular reactive oxygen species (ROS) assay, and DAPI and AOPI double staining, whilst genotoxicity was assessed using Comet Assay analysis. The level of silver ions (Ag+) and cellular uptake of AgNPs-GA were evaluated by ICP-OES and TEM analyses, respectively. Results. A significant cytotoxic effect was observed by AgNPs-GA on both A549 and BEAS-2B cell lines, with IC50 values of 20–28 μg/ml and 12–35 μg/ml, respectively. The cytotoxicity profile of AgNPs-GA was also accompanied by a pronounced increase in ROS production, DNA damage, and apoptosis. Moreover, Ag+ was also detected in cells exposed to AgNPs-GA threefold higher compared to controls. In this study, AgNPs-GA were endocytosed within lysosomes, which may direct to secondary toxicity effects including oxidative stress, impairment of the cell membrane, DNA fragmentation, and cell death. Conclusions. Taken together, novel toxicological-related mechanisms by AgNPs-GA were proposed involving the generation of ROS that causes DNA damage which led to programmed cell death in both A549 and BEAS-2B cells. Therefore, a combination of scientific assessments is constantly needed to ensure that the quality of biosynthesized nanoparticles is controlled and their safe development is promoted.
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Etti IC, Abdullah R, Kadir A, Hashim NM, Yeap SK, Imam MU, Ramli F, Malami I, Lam KL, Etti U, Waziri P, Rahman M. The molecular mechanism of the anticancer effect of Artonin E in MDA-MB 231 triple negative breast cancer cells. PLoS One 2017; 12:e0182357. [PMID: 28771532 PMCID: PMC5542509 DOI: 10.1371/journal.pone.0182357] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Accepted: 07/17/2017] [Indexed: 02/07/2023] Open
Abstract
Nature has provided us with a wide spectrum of disease healing phytochemicals like Artonin E, obtained from the root bark of Artocarpus elasticus. This molecule had been predicted to be drug-like, possessing unique medicinal properties. Despite strides made in chemotherapy, prognosis of the heterogenous aggressive triple negative breast cancer is still poor. This study was conducted to investigate the mechanism of inhibition of Artonin E, a prenylated flavonoid on MDA-MB 231 triple negative breast cancer cell, with a view of mitigating the hallmarks displayed by these tumors. The anti-proliferative effect, mode of cell death and the mechanism of apoptosis induction were investigated. Artonin E, was seen to effectively relinquish MDA-MB 231 breast cancer cells of their apoptosis evading capacity, causing a half-maximal growth inhibition at low concentrations (14.3, 13.9 and 9.8 μM) after the tested time points (24, 48 and 72 hours), respectively. The mode of cell death was observed to be apoptosis with defined characteristics. Artonin E was seen to induce the activation of both extrinsic and intrinsic caspases initiators of apoptosis. It also enhanced the release of total reactive oxygen species which polarized the mitochondrial membrane, compounding the release of cytochrome c. Gene expression studies revealed the upregulation of TNF-related apoptosis inducing ligand and proapoptotic genes with down regulation of anti-apoptotic genes and proteins. A G2/M cell cycle arrest was also observed and was attributed to the observed upregulation of p21 independent of the p53 status. Interestingly, livin, a new member of the inhibitors of apoptosis was confirmed to be significantly repressed. In all, Artonin E showed the potential as a promising candidate to combat the aggressive triple negative breast cancer.
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Affiliation(s)
- Imaobong Christopher Etti
- Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Selangor, Malaysia
- Department of Pharmacology and Toxicology, University of Uyo, Uyo, Nigeria
| | - Rasedee Abdullah
- Department of Veterinary Pathology and Microbiology, Faculty of Veterinary Medicine, University Putra Malaysia, Selangor, Malaysia
| | - Arifah Kadir
- Department of Veterinary Preclinical Science, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Selangor, Malaysia
| | - Najihah Mohd Hashim
- Department of Pharmacy, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Swee Keong Yeap
- Laboratory of Vaccine and Immunotherapeutics, Institute of Bioscience, University Putra Malaysia, Selangor, Malaysia
| | - Mustapha Umar Imam
- School of Public Health, Zhengzhou University, Zhengzhou city, Henan Province, PR China
| | - Faiqah Ramli
- Institute of Bioproduct Development, Universiti Technologyi Malaysia, Johor, Malaysia
| | - Ibrahim Malami
- MAKNA-Cancer Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, Selangor, Malaysia
| | - Kian Lim Lam
- Faculty of Medicine and Health Sciences, Universiti Tunku Abdul Rahman, Selangor, Malaysia
| | - Ubong Etti
- Department of Biochemistry, Obafemi Awolowo University, Ile Ife, Nigeria
| | - Peter Waziri
- MAKNA-Cancer Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, Selangor, Malaysia
| | - Marsitoh Rahman
- Department of Pharmacy, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
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Retraction: Mechanism of action of novel piperazine containing a toxicant against human liver cancer cells. PeerJ 2017; 4:1588/retraction. [PMID: 28133563 PMCID: PMC5255982 DOI: 10.7717/peerj.1588/retraction] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Pant K, Yadav AK, Gupta P, Rathore AS, Nayak B, Venugopal SK. Humic acid inhibits HBV-induced autophagosome formation and induces apoptosis in HBV-transfected Hep G2 cells. Sci Rep 2016; 6:34496. [PMID: 27708347 PMCID: PMC5052648 DOI: 10.1038/srep34496] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Accepted: 09/14/2016] [Indexed: 12/26/2022] Open
Abstract
Hepatitis B Virus (HBV) utilizes several mechanisms to survive in the host cells and one of the main pathways being autophagosome formation. Humic acid (HA), one of the major components of Mineral pitch, is an Ayurvedic medicinal food, commonly used by the people of the Himalayan regions of Nepal and India for various body ailments. We hypothesized that HA could induce cell death and inhibit HBV-induced autophagy in hepatic cells. Incubation of Hep G2.2.1.5 cells (HepG2 cells stably expressing HBV) with HA (100 μM) inhibited both cell proliferation and autophagosome formation significantly, while apoptosis induction was enhanced. Western blot results showed that HA incubation resulted in decreased levels of beclin-1, SIRT-1 and c-myc, while caspase-3 and β-catenin expression were up-regulated. Western blot results showed that HA significantly inhibited the expression of HBx (3-fold with 50 μM and 5-fold with 100 μM) compared to control cells. When HA was incubated with HBx-transfected Hep G2 cells, HBx-induced autophagosome formation and beclin-1 levels were decreased. These data showed that HA induced apoptosis and inhibited HBV-induced autophagosome formation and proliferation in hepatoma cells.
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Affiliation(s)
- Kishor Pant
- Faculty of Life Sciences and Biotechnology, South Asian University, Akbar Bhawan Chanakyapuri New Delhi, India
| | - Ajay K. Yadav
- Faculty of Life Sciences and Biotechnology, South Asian University, Akbar Bhawan Chanakyapuri New Delhi, India
| | - Parul Gupta
- Faculty of Life Sciences and Biotechnology, South Asian University, Akbar Bhawan Chanakyapuri New Delhi, India
| | - Abhishek Singh Rathore
- Faculty of Life Sciences and Biotechnology, South Asian University, Akbar Bhawan Chanakyapuri New Delhi, India
| | - Baibaswata Nayak
- Department of Gastroenterology and Human Nutrition, All India Institute of Medical Sciences, New Delhi, India
| | - Senthil K. Venugopal
- Faculty of Life Sciences and Biotechnology, South Asian University, Akbar Bhawan Chanakyapuri New Delhi, India
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