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Chauhan C, Singh P, Muthu SA, Parvez S, Selvapandiyan A, Ahmad B. Plumbagin accelerates serum albumin's amyloid aggregation kinetics and generates fibril polymorphism by inducing non-native β-sheet structures. BIOCHIMICA ET BIOPHYSICA ACTA. PROTEINS AND PROTEOMICS 2024; 1872:141028. [PMID: 38849109 DOI: 10.1016/j.bbapap.2024.141028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 05/31/2024] [Accepted: 06/03/2024] [Indexed: 06/09/2024]
Abstract
The ligand-induced conformational switch of proteins has great significance in understanding the biophysics and biochemistry of their self-assembly. In this work, we have investigated the ability of plumbagin (PL), a hydroxynaphthoquinone compound found in the root of the medicinal plant Plumbago zeylanica, to modulate aggregation precursor state, aggregation kinetics and generate distinct fibril of human serum albumin (HSA). PL was found to moderately bind (binding constant Ka ∼ 10-4 M-1)) to domain-II of HSA in the stoichiometric ratio of 1:1. We found that PL-HSA complex aggregation was accelerated as compared to that of HSA aggregation and it may be through an independent pathway. We also detected that fibril produced in the presence of PL is wider in diameter, contains a higher amount of β-sheet (∼18%) and disordered (∼46%) structures, and is less stable. We concluded that the acceleration of aggregation reaction and generation of fibril polymorphism was mainly because of the higher extent of unfolding and high content of non-native β-sheet structure in the aggregation precursor state of PL-HSA complex. This study offers opportunities to explore the ability of ligand binding to modulate aggregation reactions and generate polymorphic protein fibrils.
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Affiliation(s)
- Chanchal Chauhan
- Department of Medical Elementology and Toxicology, Jamia Hamdard, New Delhi 110062, India; Department of Molecular Medicine, Jamia Hamdard, New Delhi 10062, India
| | - Poonam Singh
- UM-DAE Centre for Excellence in Basic Sciences, University of Mumbai, Vidyanagari Campus, Mumbai 400098, India
| | - Shivani A Muthu
- Department of Medical Elementology and Toxicology, Jamia Hamdard, New Delhi 110062, India; Department of Molecular Medicine, Jamia Hamdard, New Delhi 10062, India
| | - Suhel Parvez
- Department of Medical Elementology and Toxicology, Jamia Hamdard, New Delhi 110062, India
| | | | - Basir Ahmad
- Department of Medical Elementology and Toxicology, Jamia Hamdard, New Delhi 110062, India.
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Lin Y, Chen X, Yu C, Xu G, Nie X, Cheng Y, Luan Y, Song Q. Radiotherapy-mediated redox homeostasis-controllable nanomedicine for enhanced ferroptosis sensitivity in tumor therapy. Acta Biomater 2023; 159:300-311. [PMID: 36642338 DOI: 10.1016/j.actbio.2023.01.022] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 12/18/2022] [Accepted: 01/06/2023] [Indexed: 01/15/2023]
Abstract
Ferroptosis has received increasing attentions in cancer therapy owing to its unique advantages over apoptosis. However, ferroptosis is governed by the efficiency of reactive oxygen species (ROS) production and the tumor cell antioxidant microenvironment that compromises therapeutic efficacy of ferroptosis. It is of great significance to develop a strategy that can both achieve high-efficiency ROS production and modulate tumor cell antioxidant microenvironment to amplify ferroptosis. However, until now, such a strategy has rarely been realized. Here, we, for the first time, reported a radiotherapy -mediated redox homeostasis-controllable nanomedicine for amplifying ferroptosis sensitivity in tumor therapy. The nanomedicine is constructed by co-assembling a ferroptosis inducer hemin and a thioredoxin 1 (Trx-1) inhibitor 1-methylpropyl 2-imidazolyl disulfide (PX-12) with human serum albumin. For our nanomedicine, hemin converts H2O2 to ROS via Fenton reaction to induce ferroptosis while PX-12 effectively inhibits the activity of antioxidant Trx-1 to suppress ROS depletion, resulting in amplified ferroptosis. Particularly, combining radiotherapy with the nanomedicine, radiotherapy depletes the other key antioxidant glutathione and generates additional radiotherapy-induced ROS, further boosting the ferroptosis effect. Therefore, our strategy can simultaneously ensure efficient ROS production and regulation of tumor cell antioxidant microenvironment, thereby enhancing efficacy of ferroptosis in tumor therapy. Our work offers an innovative approach to amplify ferroptosis sensitivity against tumors by simultaneously promoting ROS production and regulating redox homeostasis. STATEMENT OF SIGNIFICANCE: The antioxidants such as thioredoxin 1 (Trx-1) and glutathione (GSH) in tumor cells, are significantly upregulated by the innate cancer cellular redox homeostasis, severely restricting the reactive oxygen species (ROS)-based therapy and compromising the effect of Fenton reaction-induced ferroptosis against tumors. It is urgent to develop a strategy to simultaneously achieve Fenton reaction-induced ferroptosis and regulate the cancer cellular redox homeostasis against upregulated levels of Trx-1 and GSH. A radiotherapy-mediated redox homeostasis-regulatable nanomedicine was designed for amplifying ferroptosis sensitivity in tumor therapy, where the therapeutic efficacy of ferroptosis against tumors can be significantly amplified by integrating Fenton reaction-induced and radiotherapy-induced ferroptosis as well as PX-12-enabled inhibition of antioxidant Trx-1 and radiotherapy-induced downregulation of antioxidant GSH levels.
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Affiliation(s)
- Yang Lin
- Key Laboratory of Chemical Biology (Ministry of Education), NMPA Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Xiangwu Chen
- Key Laboratory of Chemical Biology (Ministry of Education), NMPA Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Cancan Yu
- Key Laboratory of Chemical Biology (Ministry of Education), NMPA Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Guixiang Xu
- Key Laboratory of Chemical Biology (Ministry of Education), NMPA Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Xinxin Nie
- Key Laboratory of Chemical Biology (Ministry of Education), NMPA Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Yufeng Cheng
- Department of Radiation Oncology, Qilu Hospital of Shandong University, 107 West Wenhua Road, Jinan, Shandong 250012, China
| | - Yuxia Luan
- Key Laboratory of Chemical Biology (Ministry of Education), NMPA Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China.
| | - Qingxu Song
- Department of Radiation Oncology, Qilu Hospital of Shandong University, 107 West Wenhua Road, Jinan, Shandong 250012, China; Key Laboratory of Chemical Biology (Ministry of Education), NMPA Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China.
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Synthesis, characterization, antimicrobial and interaction studies of pteridines with human serum albumin: A combined multi-spectroscopic and computational study. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131857] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Anand BG, Prajapati KP, Purohit S, Ansari M, Panigrahi A, Kaushik B, Behera RK, Kar K. Evidence of Anti-amyloid Characteristics of Plumbagin via Inhibition of Protein Aggregation and Disassembly of Protein Fibrils. Biomacromolecules 2021; 22:3692-3703. [PMID: 34375099 DOI: 10.1021/acs.biomac.1c00344] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The biological consequences associated with the conversion of soluble proteins into insoluble toxic amyloids are not only limited to the onset of neurodegenerative diseases but also to the potential health risks associated with supplements of protein therapeutic agents as well. Hence, finding inhibitors against amyloid formation is important, and natural product-based anti-amyloid compounds have gained much interest because of their higher efficacy and biocompatibility. Plumbagin has been identified as a potential natural product with multiple medical benefits; however, it remains largely unclear whether plumbagin can act against amyloid formation of proteins. Here, we show that plumbagin can effectively inhibit the temperature-induced amyloid aggregation of important proteins (insulin and serum albumin). Both experimental and computational data revealed that the presence of plumbagin in protein solutions, under aggregating conditions, promotes a direct protein-plumbagin interaction, which is predominantly stabilized by stronger H-bonds and hydrophobic interactions. Plumbagin-mediated retention of the native structures of proteins appears to play a crucial role in preventing their conversion into insoluble β-sheet-rich amyloid aggregates. More importantly, the addition of plumbagin into a suspension of protein fibrils triggered their spontaneous disassembly, promoting the release of soluble proteins. The results highlight that a possible synergistic effect via both the stabilization of protein structures and the restriction of the monomer recruitment at the fibril growth sites could be important for the mechanism of plumbagin's anti-aggregation effect. These findings may inspire the development of plumbagin-based formulations to benefit both the prevention and treatment of amyloid-related health complications.
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Affiliation(s)
- Bibin G Anand
- Biophysical and Biomaterials Research Laboratory, Room 310, School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Kailash P Prajapati
- Biophysical and Biomaterials Research Laboratory, Room 310, School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Sampreeta Purohit
- Biophysical and Biomaterials Research Laboratory, Room 310, School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Masihuzzaman Ansari
- Biophysical and Biomaterials Research Laboratory, Room 310, School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Ayoushna Panigrahi
- Biophysical and Biomaterials Research Laboratory, Room 310, School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Bharti Kaushik
- Biophysical and Biomaterials Research Laboratory, Room 310, School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Rajendra Kumar Behera
- Biophysical and Biomaterials Research Laboratory, Room 310, School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Karunakar Kar
- Biophysical and Biomaterials Research Laboratory, Room 310, School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
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Zhou Y, Ren X, Hou Z, Wang N, Jiang Y, Luan Y. Engineering a photosensitizer nanoplatform for amplified photodynamic immunotherapy via tumor microenvironment modulation. NANOSCALE HORIZONS 2021; 6:120-131. [PMID: 33206735 DOI: 10.1039/d0nh00480d] [Citation(s) in RCA: 87] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Photosensitizer-based photodynamic therapy (PDT) can not only kill tumor cells by the generated cytotoxic reactive oxygen species (ROS), but also trigger immunogenic cell death (ICD) and activate an immune response for immunotherapy. However, such photodynamic immunotherapy suffers from major obstacles in the tumor microenvironment. The hypoxic microenvironment greatly weakens PDT, while the immunosuppressive tumor microenvironment caused by aberrant tumor blood vessels and indoleamine 2,3-dioxygenase (IDO) leads to a significant reduction in immunotherapy. To overcome these obstacles, herein, an engineered photosensitizer nanoplatform is designed for amplified photodynamic immunotherapy by integrating chlorin e6 (Ce6, a photosensitizer), axitinib (AXT, a tyrosine kinase inhibitor) and dextro-1-methyl tryptophan (1MT, an IDO inhibitor). In our nanoplatform, AXT improves the tumor microenvironment by normalizing tumor blood vessels, which not only promotes PDT by reducing the level of hypoxia of the tumor microenvironment, but also promotes immunotherapy through facilitating infiltration of immune effector cells into the tumor and reversing the immunosuppressive effect of vascular endothelial growth factor (VEGF). Moreover, 1MT effectively inhibits the activity of IDO, further reducing the immunosuppressive nature of the tumor microenvironment. Therefore, this nanoplatform demonstrates an amplified photodynamic immunotherapy via tumor microenvironment modulation, exhibiting outstanding therapeutic efficacy against tumor growth and metastasis with negligible side toxicity. The current concept of engineering photosensitizer nanoplatforms for overcoming photodynamic immunotherapy obstacles provides a promising strategy against tumors.
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Affiliation(s)
- Yaxin Zhou
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China.
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Vasav AP, Pable AA, Barvkar VT. Differential transcriptome and metabolome analysis of Plumbago zeylanica L. reveal putative genes involved in plumbagin biosynthesis. Fitoterapia 2020; 147:104761. [PMID: 33069837 DOI: 10.1016/j.fitote.2020.104761] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 09/24/2020] [Accepted: 10/05/2020] [Indexed: 11/20/2022]
Abstract
Plumbagin is a pharmacologically active naphthoquinone present in the Plumbago zeylanica L. having important medicinal properties. The root of P. zeylanica is rich and primary tissue of the plumbagin biosynthesis and accumulation. The complete biosynthetic pathway of plumbagin in plant is still obscure. The present study attempts to understand the plumbagin biosynthetic pathway with the help of differential transcriptome and metabolome analysis of P. zeylanica leaf and root. The transcriptome data showed co-expression of Aldo-keto reductase (PzAKR), Polyketide cyclase (Pzcyclase) and Cytochrome P450 (PzCYPs) transcripts along with the Polyketide synthase (PzPKS) transcripts. Their higher expression in root as compared to leaf supports their possible involvement in plumbagin biosynthesis. The metabolome data of leaf and root revealed naphthalene derivative isoshinanolone that could be potential precursor of plumbagin. Pathway elucidation and transcriptome data of P. zeylanica, will enable and accelerate research on naphthoquinone biosynthesis in plants.
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Affiliation(s)
- Arati P Vasav
- Department of Botany, Savitribai Phule Pune University, Pune 411007, India
| | - Anupama A Pable
- Department of Microbiology, Savitribai Phule Pune University, Pune 411007, India
| | - Vitthal T Barvkar
- Department of Botany, Savitribai Phule Pune University, Pune 411007, India.
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Yasrebi SA, Takjoo R, Riazi GH. HSA-interaction studies of uranyl complexes of alkyl substituted isothiosemicarbazone. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.04.126] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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An FF, Zhang XH. Strategies for Preparing Albumin-based Nanoparticles for Multifunctional Bioimaging and Drug Delivery. Theranostics 2017; 7:3667-3689. [PMID: 29109768 PMCID: PMC5667340 DOI: 10.7150/thno.19365] [Citation(s) in RCA: 278] [Impact Index Per Article: 39.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Accepted: 03/31/2017] [Indexed: 12/12/2022] Open
Abstract
Biosafety is the primary concern in clinical translation of nanomedicine. As an intrinsic ingredient of human blood without immunogenicity and encouraged by its successful clinical application in Abraxane, albumin has been regarded as a promising material to produce nanoparticles for bioimaging and drug delivery. The strategies for synthesizing albumin-based nanoparticles could be generally categorized into five classes: template, nanocarrier, scaffold, stabilizer and albumin-polymer conjugate. This review introduces approaches utilizing albumin in the preparation of nanoparticles and thereby provides scientists with knowledge of goal-driven design on albumin-based nanomedicine.
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Affiliation(s)
- Fei-Fei An
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory of Carbon-based Functional Materials and Devices, Soochow University, Suzhou, Jiangsu, 215123, P.R. China
- Department of Radiology, Molecular Imaging Innovations Institute (MI3), Weill Cornell Medicine, 413 E 69th St, New York, NY, 10065
| | - Xiao-Hong Zhang
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory of Carbon-based Functional Materials and Devices, Soochow University, Suzhou, Jiangsu, 215123, P.R. China
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Zhang Y, Zhang Z, Gou Y, Jiang M, Khan H, Zhou Z, Liang H, Yang F. Design an anticancer copper(II) pro-drug based on the flexible IIA subdomain of human serum albumin. J Inorg Biochem 2017; 172:1-8. [DOI: 10.1016/j.jinorgbio.2017.04.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2016] [Revised: 03/21/2017] [Accepted: 04/02/2017] [Indexed: 12/20/2022]
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Qi J, Zhang Y, Gou Y, Zhang Z, Zhou Z, Wu X, Yang F, Liang H. Developing an Anticancer Copper(II) Pro-Drug Based on the His242 Residue of the Human Serum Albumin Carrier IIA Subdomain. Mol Pharm 2016; 13:1501-7. [PMID: 27017838 DOI: 10.1021/acs.molpharmaceut.5b00938] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
To increase delivery efficiency, anticancer activity, and selectivity of anticancer metal agents in vivo, we proposed to develop the anticancer metal pro-drug based on His242 residue of the human serum albumin (HSA) carrier IIA subdomain. To confirm our hypothesis, we prepared two Cu(II) compounds [Cu(P4 mT)Cl and Cu(Bp44 mT)Cl] by modifying Cu(II) compound ligand structure. Studies with two HSA complex structures revealed that Cu(P4 mT)Cl bound to the HSA subdomain IIA via hydrophobic interactions, but Cu(Bp44 mT)Cl bound to the HSA subdomain IIA via His242 replacement of a Cl atom of Cu(Bp44 mT)Cl, and a coordination to Cu(2+). Furthermore, Cu(II) compounds released from HSA could be regulated at different pHs. In vivo data revealed that the HSA-Cu(Bp44 mT) complex increased copper's selectivity and capacity of inhibiting tumor growth compared to Cu(Bp44 mT)Cl alone.
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Affiliation(s)
- Jinxu Qi
- State Key Laboratory Cultivation Base for the Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Science and Technology of China, Guangxi Normal University , Guilin, Guangxi 541004, China
| | - Yao Zhang
- State Key Laboratory Cultivation Base for the Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Science and Technology of China, Guangxi Normal University , Guilin, Guangxi 541004, China
| | - Yi Gou
- State Key Laboratory Cultivation Base for the Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Science and Technology of China, Guangxi Normal University , Guilin, Guangxi 541004, China
| | - Zhenlei Zhang
- State Key Laboratory Cultivation Base for the Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Science and Technology of China, Guangxi Normal University , Guilin, Guangxi 541004, China
| | - Zuping Zhou
- Guangxi Universities Key Laboratory of Stem Cell and Pharmaceutical Biotechnology, Guangxi Normal University , Guilin, Guangxi 541004, China
| | - Xiaoyang Wu
- Ben May Department for Cancer Research, University of Chicago , Chicago, Illinois 60637, United States
| | - Feng Yang
- State Key Laboratory Cultivation Base for the Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Science and Technology of China, Guangxi Normal University , Guilin, Guangxi 541004, China
| | - Hong Liang
- State Key Laboratory Cultivation Base for the Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Science and Technology of China, Guangxi Normal University , Guilin, Guangxi 541004, China
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Green Production of Indolylquinones, Derivatives of Perezone, and Related Molecules, Promising Antineoplastic Compounds. J CHEM-NY 2016. [DOI: 10.1155/2016/3870529] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
A green approach to produce the indolyl derivatives from four natural quinones (perezone, isoperezone, menadione, and plumbagin) was performed; in this regard, a comparative study was accomplished among the typical mantle heating and three nonconventional activating modes of reaction (microwave, near-infrared, and high speed ball milling or tribochemical), under solventless conditions and using bentonitic clay as a catalyst. In addition, the tribochemical production of isoperezone from perezone is also commented on. It is also worth noting that the cytotoxicity of the synthesized indolylquinones in human breast cancer cell was tested by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay, with the 3-indolylisoperezone being the most active. The structural attribution of the target molecules was performed by typical spectroscopic procedures; moreover, the experimental and computed1H and13C NMR chemical shifts data, with previous acquisition of the corresponding minimum energetic structures, were in good agreement.
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