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Mao X, Zhao G, Wang Q, He J, Liu Y, Liu T, Li W, Peng Y, Zheng J. Chelerythrine Chloride is an Affinity-Labeling Inactivator of CYP3A4 by Modification of Cysteine239. J Med Chem 2024; 67:2802-2811. [PMID: 38330258 DOI: 10.1021/acs.jmedchem.3c01943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
Chelerythrine chloride (CHE) is a quaternary benzo[c]phenanthridine alkaloid with an iminium group that was found to cause time- and concentration-dependent inhibition of CYP3A4. The loss of CYP3A4 activity was independent of NADPH. CYP3A4 competitive inhibitor ketoconazole and nucleophile N-acetylcysteine (NAC) slowed the inactivation. No recovery of CYP3A4 activity was observed after dialysis. Dihydrochelerythrine hardly inhibited CYP3A4, suggesting that the iminium group was primarily responsible for the inactivation. UV spectral analysis revealed that the maximal absorbance of CHE produced a significant red-shift after being mixed with NAC, suggesting that 1,2-addition possibly took place between the sulfhydryl group of NAC and iminium group of CHE. Molecular dynamics simulation and site-direct mutagenesis studies demonstrated that modification of Cys239 by the iminium group of CHE attributed to the inactivation. In conclusion, CHE is an affinity-labeling inactivator of CYP3A4. The observed enzyme inactivation resulted from the modification of Cys239 of CYP3A4 by the iminium group of CHE.
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Affiliation(s)
- Xu Mao
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang 550004, Guizhou, PR China
- Department of Pharmaceutical Analysis, College of Pharmacy, Mudanjiang Medical University, Mudanjiang 157011, PR China
| | - Guode Zhao
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, PR China
| | - Qian Wang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, PR China
- Shuangyashan Disease Control and Prevention Center, Shuangyashan 155100, PR China
| | - Junqi He
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang 550004, Guizhou, PR China
| | - Ying Liu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang 550004, Guizhou, PR China
| | - Ting Liu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang 550004, Guizhou, PR China
| | - Weiwei Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang 550004, Guizhou, PR China
| | - Ying Peng
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, PR China
| | - Jiang Zheng
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang 550004, Guizhou, PR China
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, PR China
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Tuzimski T, Petruczynik A. New trends in the practical use of isoquinoline alkaloids as potential drugs applicated in infectious and non-infectious diseases. Biomed Pharmacother 2023; 168:115704. [PMID: 37862968 DOI: 10.1016/j.biopha.2023.115704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 09/29/2023] [Accepted: 10/10/2023] [Indexed: 10/22/2023] Open
Abstract
In the last years, traditional natural products have been the center of attention for the scientific community and exploration of their therapeutic abilities is proceeding permanently. Isoquinoline alkaloids have always attracted scientific interest due to either their positive or negative effects on human organism. The present review describes research on isoquinoline alkaloids isolated from different plant species. Alkaloids are one of the most important classes of plant derived compounds among these isoquinoline alkaloids possess varied biological activities such as anticancer, antineurodegenerative diseases, antidiabetic, antiinflammatory, antimicrobial, and many others. The use of plants against different disorders is entrenched in traditional medicine around the globe. Recent progress in modern therapeutics has stimulated the use of natural products worldwide for various ailments and diseases. The review provides a collection of information on the capabilities of some isoquinoline alkaloids, its potential for the treatment of various diseases and is designed to be a guide for future research on different biologically active isoquinoline alkaloids and plant species containing them. The authors are aware that they were not able to cover the whole area of the topic related to biological activity of isoquinoline alkaloids. This review is intended to suggest directions for further research and can also help other researchers in future studies.
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Affiliation(s)
- Tomasz Tuzimski
- Department of Physical Chemistry, Medical University of Lublin, Chodźki 4a, 20-093 Lublin, Poland.
| | - Anna Petruczynik
- Department of Inorganic Chemistry, Medical University of Lublin, Chodźki 4a, 20-093 Lublin, Poland.
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Xie Z, Zhang S, Wu Y, Liang J, Yao W, Qu R, Tong X, Zhang G, Yang H. Interaction of isoquinoline alkaloids with pyrimidine motif triplex DNA by mass spectrometry and spectroscopies reveals diverse mechanisms. Heliyon 2023; 9:e14954. [PMID: 37082631 PMCID: PMC10112036 DOI: 10.1016/j.heliyon.2023.e14954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 03/21/2023] [Accepted: 03/22/2023] [Indexed: 04/22/2023] Open
Abstract
Isoquinoline alkaloids represent an important class of molecules due to their broad range of pharmacology and clinical utility. Prospective development and use of these alkaloids as effective anticancer agents have elicited great interest. In this study, in order to reveal structure-activity relationship, we present the characterization of bioactive isoquinoline alkaloid-DNA triplex interactions, with particular emphasis on the sequence selectivity and preference of binding to the two types of DNA triplexes, by electrospray ionization mass spectrometry (ESI-MS) and various spectroscopic techniques. The six alkaloids, including coptisine, columbamine, epiberberine, berberrubine, jateorhizine, and fangchinoline, were selected to explore their interactions with the TC and TTT triplex DNA structures. Berberrubine, fangchinoline, coptisine, columbamine, and epiberberine have preference for TC rich DNA sequences compared to TTT rich DNA triplex based on affinity values in MS. The experimental results from different fragmentation modes in tandem MS, subtractive and hyperchromic effects in UV absorption spectra, fluorescence quenching and enhancement in fluorescence spectra, and strong conformational changes in circular dichroism (CD) hinted that the interaction between isoquinoline alkaloid-TC/TTT DNA had diverse mechanisms including at least two different binding modes: the electrostatic binding and the intercalation binding. Interestingly, columbamine, berberrubine, and fangchinoline can stabilize TTT triplex as inferred from optical thermal melting profiles, while it was not the case in TC triplex. These results provide new insights into binding of isoquinoline alkaloids to pyrimidine motif triplex DNA.
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Affiliation(s)
- Zhaoyang Xie
- Northeast Asia Institute of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, 130021, China
| | - Sunuo Zhang
- School of Materials Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Yi Wu
- Northeast Asia Institute of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, 130021, China
| | - Jinling Liang
- College of Pharmacy, Changchun University of Chinese Medicine, Changchun, 130117, China
| | - Wenbin Yao
- College of Pharmacy, Changchun University of Chinese Medicine, Changchun, 130117, China
| | - Ruoning Qu
- China-Japan Union Hospital of Jilin University, Changchun, 130033, China
| | - Xiaole Tong
- Jilin Jian Yisheng Pharmaceutical Co., Ltd., Jian, 134200, China
| | - Guang Zhang
- China-Japan Union Hospital of Jilin University, Changchun, 130033, China
- Corresponding author.
| | - Hongmei Yang
- Northeast Asia Institute of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, 130021, China
- Corresponding author.
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Oladipo A, Ejeromedoghene O, Adebayo A, Ogunyemi O, Egejuru G. A mini review on the prospects of Fagara zanthoxyloides extract based composites: a remedy for COVID-19 and associated replica? PHYSICAL SCIENCES REVIEWS 2023. [DOI: 10.1515/psr-2022-0256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
Abstract
Studies are still being conducted to find a sustainable and long-lasting solution to the lethal consequences of the feared virus characterized as coronavirus disease (Covid-19) and its accompanying pathogenic replication, which pose a serious threat to human survival in the wake of its broad distribution. Since its emergence, researchers have investigated synthetic approaches in search of a dependable vaccine or treatment and curtail the spread of the virus and also enhance the health of a patient who has been affected. Unfortunately, the infection is yet to be entirely eradicated in many parts of the world. Despite the introduction of synthetic pharmaceuticals like remdesivir and derivatives of chloroquine, plant extracts may be an alternative reliable strategy that could successfully combat the operation of the virus. Herein, we investigated the prospects of fagara zanthoxyloides lam. (rutaceae) (syn. zanthoxylum zanthoxyloides), a well-known medicinal tree whose extracts have demonstrated success in treating many microbiological and viral-related infections. The distinctive plant extracts contain several bioactive phytochemicals with promising biological activity with minimal or no side effects and are being researched for a variety of applications, particularly in the pharmaceutical and medicinal industries. Consequently, in this review, we examined the crude extracts from the Fagara species and suggested that careful consideration should be given to its independent use or combination with other bioactive molecules, such as biopolymers and nano-metallic composites, to combat the terrifying Covid-19 virus and its associates.
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Affiliation(s)
- Abiodun Oladipo
- Co-Innovation Center for Sustainable Forestry in Southern China , College of Forestry , Nanjing Forestry University , 210037 Nanjing , Jiangsu , P. R. China
| | - Onome Ejeromedoghene
- School of Chemistry and Chemical Engineering , Southeast University , Jiangning District , Nanjing , Jiangsu Province , 211189 , P. R. China
| | - Ademola Adebayo
- Department of Forest and Conservation Sciences , Faculty of Forestry , University of British Columbia , V6T1Z4 B.C , Vancouver , Canada
| | - Olakunle Ogunyemi
- Department of Forestry and Wildlife Management , Federal University of Agriculture , PMB 2240 Abeokuta , Ogun State , Nigeria
| | - George Egejuru
- School of Public Health , Southeast University , Jiangning District , Nanjing , Jiangsu Province , 211189 , P. R. China
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Yang Y, Li Y, Amoroso V, Acma F, Guiang MM, Wu H. Comparison of production of bioactive components in Zanthoxylum nitidum taproots from different regions in southern China. Biomed Chromatogr 2023; 37:e5602. [PMID: 36779508 DOI: 10.1002/bmc.5602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/27/2022] [Accepted: 02/09/2023] [Indexed: 02/14/2023]
Abstract
Zanthoxylum nitidum (Roxb.) DC is a traditional Chinese herb from southern China and its 3-4-year old roots are used in medicine. However, there is a scarcity of studies on the differences in the content of different regions of the roots, as well as comprehensive evaluations of Z. nitidum from the main areas of production in China. This study used ultra performance liquid chromatography, triple quadrupole tandem mass spectrometry, HPLC, and Fourier-transform infrared spectroscopy to detect and identify the bioactive components from different parts and eight regions of 4-year-old roots of Z. nitidum. Our results revealed that the types and quantities of compounds extracted were similar in root bark and root wood, although the amount of alkaloids in the former was substantially higher. The contents of four alkaloids in samples from Guangdong were higher than those in Guangxi Province. Meanwhile, hierarchical cluster analysis and principal component analysis showed that the samples from different regions were effectively identified and evaluated based on alkaloids and other bioactive substances. Our findings have significant implications for Z. nitidum harvesting and usage, as well as for origin identification, quality evaluation, and sensible use of Z. nitidum resources.
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Affiliation(s)
- Yang Yang
- Central Mindanao University, Musuan, Bukidnon, The Philippines.,School of Pharmaceutical Sciences, Hunan University of Medicine, Huaihua, China
| | - Yanqun Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China.,Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, South China Agricultural University, Guangzhou, China
| | - Victor Amoroso
- Central Mindanao University, Musuan, Bukidnon, The Philippines
| | - Florfe Acma
- Central Mindanao University, Musuan, Bukidnon, The Philippines
| | | | - Hong Wu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China.,Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, South China Agricultural University, Guangzhou, China
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Abstract
Phosphatases and kinases maintain an equilibrium of dephosphorylated and phosphorylated proteins, respectively, that are required for critical cellular functions. Imbalance in this equilibrium or irregularity in their function causes unfavorable cellular effects that have been implicated in the development of numerous diseases. Protein tyrosine phosphatases (PTPs) catalyze the dephosphorylation of protein substrates on tyrosine residues, and their involvement in cell signaling and diseases such as cancer and inflammatory and metabolic diseases has made them attractive therapeutic targets. However, PTPs have proved challenging in therapeutics development, garnering them the unfavorable reputation of being undruggable. Nonetheless, great strides have been made toward the inhibition of PTPs over the past decade. Here, we discuss the advancement in small-molecule inhibition for the PTP subfamily known as the mitogen-activated protein kinase (MAPK) phosphatases (MKPs). We review strategies and inhibitor discovery tools that have proven successful for small-molecule inhibition of the MKPs and discuss what the future of MKP inhibition potentially might yield.
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Affiliation(s)
- Shanelle R Shillingford
- Department of Pharmacology, Yale University School of Medicine, New Haven, Connecticut, USA;
- Department of Chemistry, Yale University, New Haven, Connecticut, USA
| | - Anton M Bennett
- Department of Pharmacology, Yale University School of Medicine, New Haven, Connecticut, USA;
- Yale Center for Molecular and Systems Metabolism, Yale University School of Medicine, New Haven, Connecticut, USA
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Luikham S, Bhattacharyya J. Targeting Natural Polymeric DNAs with Harmane: An Insight into Binding and Thermodynamic Interaction Through Biophysical Approach. DNA Cell Biol 2022; 41:91-102. [PMID: 35049377 DOI: 10.1089/dna.2021.0132] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
DNA is one of the major molecular targets for a broad range of anticancer drugs. Hence, interaction studies involving cellular DNA and small molecules can be highly beneficial as they often lead to rational and efficient drug design. In this study, the binding interaction of Harmane (a naturally occurring, bioactive indole alkaloid) with two natural polymeric DNAs, that is, Calf thymus (CT) DNA and Herring testis (HT) DNA has been elucidated using biophysical techniques. A ground state, 1:1 complexation, was revealed by steady-state fluorescence spectroscopy. The thermodynamic profile and energetics of the associated reaction were evaluated by temperature-dependent fluorescence spectroscopy. The spontaneity of the binding was confirmed by the negative ΔG° values in both cases. Negative enthalpy change, along with stronger positive entropic contribution, indicated the dominant electrostatic nature of the interaction and finally the entropy-driven exothermic binding process throughout. Salt-dependent studies further demonstrated the significant contribution of electrostatic interactions in ligand binding toward DNA. Infrared data substantiated the structural information of the said interactions, leading to the exploration of the structure-function relationship.
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Affiliation(s)
- Soching Luikham
- Department of Chemistry, National Institute of Technology Nagaland, Chumukedima, Dimapur, India
| | - Jhimli Bhattacharyya
- Department of Chemistry, National Institute of Technology Nagaland, Chumukedima, Dimapur, India
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Abstract
After first describing the issue contents (Biophysical Reviews-Volume 12 Issue 6), this Editorial goes on to provide a short round-up of the activities of the journal in 2020. Directly following this Editorial are two obituaries marking the recent deaths of Prof. Fumio Oosawa (Japan) and Dr. Herbert Tabor (USA)-two major figures in Biophysical/Biochemical science from the last 100 years.
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Affiliation(s)
- Damien Hall
- Department of Life Sciences and Applied Chemistry, Nagoya Institute of Technology, Gokiso Showa, Nagoya, 466-8555 Japan
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