1
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Li Y, Ge X. Role of Berberine as a Potential Efflux Pump Inhibitor against MdfA from Escherichia coli: In Vitro and In Silico Studies. Microbiol Spectr 2023; 11:e0332422. [PMID: 36786641 PMCID: PMC10100983 DOI: 10.1128/spectrum.03324-22] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 01/30/2023] [Indexed: 02/15/2023] Open
Abstract
Infections by Gram-negative pathogens are usually difficult to manage due to the drug export by efflux pumps. With the evolution and horizontal transfer of efflux pumps, there is an urgent need to discover safe and effective efflux pump inhibitors. Here, we found that the natural compound berberine (BBR), a traditional medicine for intestinal infection, is an inhibitor against the major facilitator superfamily (MFS) efflux pump MdfA in Escherichia coli. The impact of BBR on MdfA was evaluated in a recombinant E. coli reporter strain. We demonstrated that low levels of BBR significantly increased intracellular ciprofloxacin concentrations and restored antibiotic susceptibility of the reporter strain. At the same time, we conducted molecular dynamics simulations to investigate the mechanisms of BBR's effect on MdfA. Our data indicated that BBR can aggregate to the periplasmic and cytoplasmic sides of MdfA in both of its inward and outward conformations. Protein rigidities were affected to different degrees. More importantly, two major driving forces for the conformational transition, salt bridges and hydrophilic interactions with water, were changed by BBR's aggregation to MdfA, which affected its conformational transition. In summary, our data provide evidence for the extended application of BBR as an efflux pump inhibitor at a clinically meaningful level. We also reveal the mechanisms and provide insights into BBR's effect on the reciprocal motion of MdfA. IMPORTANCE In this work, we evaluated the role of berberine (BBR) as an inhibitor of the MFS efflux pump MdfA from E. coli. We demonstrated that low levels of BBR significantly increased intracellular ciprofloxacin concentrations and restored antibiotic susceptibility of the reporter strain. Molecular dynamics simulations revealed the effect of BBR on the conformational transition of MdfA. Our data suggested that driving forces for MdfA's conformational transition were affected by BBR and provided evidence for BBR's extended application as an effective inhibitor of MdfA.
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Affiliation(s)
- Ying Li
- College of Biochemical Engineering, Beijing Union University, Beijing, China
| | - Xizhen Ge
- College of Biochemical Engineering, Beijing Union University, Beijing, China
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2
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Peng S, Chang Y, Zeng X, Lai R, Yang M, Wang D, Zhou X, Shao Y. Selectivity of natural isoquinoline alkaloid assembler in programming poly(dA) into parallel duplex by polyvalent synergy. Anal Chim Acta 2023; 1241:340777. [PMID: 36657870 DOI: 10.1016/j.aca.2022.340777] [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: 10/05/2022] [Revised: 12/04/2022] [Accepted: 12/31/2022] [Indexed: 01/03/2023]
Abstract
Ligand-induced assembly of disordered DNAs attracts much attention due to its potential action in transcription regulation and molecular switches-based sensors. Among natural isoquinoline alkaloids (NIAs), we screened out nitidine (NIT) as polyvalent-binding assembler to program poly(dA) into a parallel duplex assembly at neutral pH. The molecule planarity of NIAs was believed to be a determinant factor in programming the parallel poly(dA) assembly. Poly(dA) with more than six adenines can initiate the synergistic binding of NIT to generate the parallel assembly. It is expected that one A-A pair in duplex can bind one NIT molecule provided that poly(dA) is long enough, suggesting the pivotal role of the polyvalent synergy of NIT in programming the parallel poly(dA) assembly. A gold nanoparticles-based colorimetric method was also developed to screen NIT out of NIAs having the potential to construct the poly(dA) assembly. Our work will inspire more interest in developing polyadenine-based switches and sensors by concentrating NIT within the polyadenine parallel assembly.
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Affiliation(s)
- Shuzhen Peng
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, Zhejiang, PR China
| | - Yun Chang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, Zhejiang, PR China
| | - Xingli Zeng
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, Zhejiang, PR China
| | - Rong Lai
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, Zhejiang, PR China
| | - Mujing Yang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, Zhejiang, PR China
| | - Dandan Wang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, Zhejiang, PR China
| | - Xiaoshun Zhou
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, Zhejiang, PR China
| | - Yong Shao
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, Zhejiang, PR China.
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3
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Fu L, Mou J, Deng Y, Ren X. Structural modifications of berberine and their binding effects towards polymorphic deoxyribonucleic acid structures: A review. Front Pharmacol 2022; 13:940282. [PMID: 36016553 PMCID: PMC9395745 DOI: 10.3389/fphar.2022.940282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 07/14/2022] [Indexed: 11/19/2022] Open
Abstract
Berberine (BBR) is a plant derived quaternary benzylisoquinoline alkaloid, which has been widely used in traditional medicines for a long term. It possesses broad pharmacological effects and is widely applied in clinical. In recent years, the anti-tumor effects of BBR have attracted more and more attention of the researchers. The canonical right-handed double-stranded helical deoxyribonucleic acid (B-DNA) and its polymorphs occur under various environmental conditions and are involved in a plethora of genetic instability-related diseases especially tumor. BBR showed differential binding effects towards various polymorphic DNA structures. But its poor lipophilicity and fast metabolism limited its clinical utility. Structural modification of BBR is an effective approach to improve its DNA binding activity and bioavailability in vivo. A large number of studies dedicated to improving the binding affinities of BBR towards different DNA structures have been carried out and achieved tremendous advancements. In this article, the main achievements of BBR derivatives in polymorphic DNA structures binding researches in recent 20 years were reviewed. The structural modification strategy of BBR, the DNA binding effects of its derivatives, and the structure activity relationship (SAR) analysis have also been discussed.
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Affiliation(s)
| | - Jiajia Mou
- *Correspondence: Jiajia Mou, ; Xiaoliang Ren,
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4
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Li RT, Chen M, Yang ZC, Chen YJ, Huang NH, Chen WH, Chen J, Chen JX. AIE-based gold nanostar-berberine dimer nanocomposites for PDT and PTT combination therapy toward breast cancer. NANOSCALE 2022; 14:9818-9831. [PMID: 35771232 DOI: 10.1039/d2nr03408e] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
We designed and synthesized three new berberine-based compounds, namely, pyridine-2,6-dimethyl-/2,2'-bipyridine-3,3'-dimethyl-tethered berberine dimers BD1 and BD2, and a tetrakis(4-benzyl)ethylene linked berberine tetramer BD4. We identified that the dimer BD2 and tetramer BD4, as well as 1,10-phenanthroline-2,9-dimethyl-linked berberine dimer BD3 previously reported by us, showed remarkable aggregation-induced emission (AIE) properties which endowed them with higher singlet oxygen (1O2) production ability than berberine. Of the four compounds, BD3 exhibits the lowest ΔEST energy with the highest 1O2 generation ability and thus was selected for further construction of AuNSs-BD3@HA (denoted as ABH, AuNSs = gold nanostars; HA = hyaluronic acid). The nanosystem of ABH shows a remarkable therapeutic effect toward breast cancer by combining photodynamic therapy (PDT) from BD3, photothermal therapy (PTT) from AuNSs, and the CD44-targeting capability of HA. The synergistically enhanced PDT and PTT induce superior cancer cell apoptosis/necrosis in vitro and anti-breast cancer activity in vivo. This study provides a new concept for PDT using natural product derivatives and their combination with PTT for efficient treatment of tumors.
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Affiliation(s)
- Rong-Tian Li
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, Guangdong, China.
| | - Ming Chen
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, Guangdong, China.
| | - Zi-Chuan Yang
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, Guangdong, China.
| | - Yong-Jian Chen
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, Guangdong, China.
| | - Nai-Han Huang
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, Guangdong, China.
| | - Wen-Hua Chen
- School of Biotechnology and Health Sciences, International Healthcare Innovation Institute (Jiangmen), Wuyi University, 529040, Jiangmen, China.
| | - Jun Chen
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, Guangdong, China.
| | - Jin-Xiang Chen
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, Guangdong, China.
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5
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Zhang C, Sheng J, Li G, Zhao L, Wang Y, Yang W, Yao X, Sun L, Zhang Z, Cui R. Effects of Berberine and Its Derivatives on Cancer: A Systems Pharmacology Review. Front Pharmacol 2020; 10:1461. [PMID: 32009943 PMCID: PMC6974675 DOI: 10.3389/fphar.2019.01461] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 11/13/2019] [Indexed: 12/15/2022] Open
Abstract
Numerous studies have shown that berberine and its derivatives demonstrate important anti-tumor effects. However, the specific underlying mechanism remains unclear. Therefore, based on systems pharmacology, this review summarizes the information available on the anti-tumor effects and mechanism of berberine and its derivatives. The action and potential mechanism of action of berberine and its derivatives when used in the treatment of complex cancers are systematically examined at the molecular, cellular, and organismic levels. It is concluded that, with further in-depth investigations on their toxicity and efficacy, berberine and its derivatives have the potential for use as drugs in cancer therapy, offering improved clinical efficacy and safety.
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Affiliation(s)
- Chaohe Zhang
- Jilin Provincial Key Laboratory on Molecular and Chemical Genetic, Second Hospital of Jilin University, Changchun, China
| | - Jiyao Sheng
- Jilin Provincial Key Laboratory on Molecular and Chemical Genetic, Second Hospital of Jilin University, Changchun, China
| | - Guangquan Li
- Jilin Provincial Key Laboratory on Molecular and Chemical Genetic, Second Hospital of Jilin University, Changchun, China
| | - Lihong Zhao
- Jilin Provincial Key Laboratory on Molecular and Chemical Genetic, Second Hospital of Jilin University, Changchun, China
| | - Yicun Wang
- Jilin Provincial Key Laboratory on Molecular and Chemical Genetic, Second Hospital of Jilin University, Changchun, China
| | - Wei Yang
- Jilin Provincial Key Laboratory on Molecular and Chemical Genetic, Second Hospital of Jilin University, Changchun, China
| | - Xiaoxiao Yao
- Jilin Provincial Key Laboratory on Molecular and Chemical Genetic, Second Hospital of Jilin University, Changchun, China
| | - Lihuan Sun
- Jilin Provincial Key Laboratory on Molecular and Chemical Genetic, Second Hospital of Jilin University, Changchun, China
| | - Zhuo Zhang
- China-Japan Union Hospital of Jilin University, Changchun, China
| | - Ranji Cui
- Jilin Provincial Key Laboratory on Molecular and Chemical Genetic, Second Hospital of Jilin University, Changchun, China
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6
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Banerjee A, Mohanty M, Lima S, Samanta R, Garribba E, Sasamori T, Dinda R. Synthesis, structure and characterization of new dithiocarbazate-based mixed ligand oxidovanadium(iv) complexes: DNA/HSA interaction, cytotoxic activity and DFT studies. NEW J CHEM 2020. [DOI: 10.1039/d0nj01246g] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis, structure and characterization of mixed ligand oxidovanadium(iv) complexes [VIVOL1–2(LN–N)] (1–3) are reported. With a view to evaluating their biological activity, their DNA/HSA interaction and cytotoxicity activity have been explored.
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Affiliation(s)
- Atanu Banerjee
- Department of Chemistry
- National Institute of Technology
- Rourkela
- India
| | - Monalisa Mohanty
- Department of Chemistry
- National Institute of Technology
- Rourkela
- India
| | - Sudhir Lima
- Department of Chemistry
- National Institute of Technology
- Rourkela
- India
| | - Rajib Samanta
- Department of Chemistry
- National Institute of Technology
- Rourkela
- India
| | - Eugenio Garribba
- Dipartimento di Chimica e Farmacia
- Università di Sassari
- I-07100 Sassari
- Italy
| | - Takahiro Sasamori
- Graduate School of Natural Sciences
- Nagoya City University Yamanohata 1
- Nagoya
- Japan
| | - Rupam Dinda
- Department of Chemistry
- National Institute of Technology
- Rourkela
- India
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7
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Su D, Li N, Liu Y, Wang M, Su X. Ratiometric fluorescence strategy for p53 gene assay by using nitrogen doped graphene quantum dots and berberine as fluorescence reporters. Anal Chim Acta 2019; 1084:78-84. [DOI: 10.1016/j.aca.2019.07.048] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 07/22/2019] [Accepted: 07/23/2019] [Indexed: 01/10/2023]
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8
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Song X, Fu B, Lan Y, Chen Y, Wei Y, Dong C. Label-free fluorescent aptasensor berberine-based strategy for ultrasensitive detection of Hg 2+ ion. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 204:301-307. [PMID: 29945113 DOI: 10.1016/j.saa.2018.06.058] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 06/07/2018] [Accepted: 06/15/2018] [Indexed: 06/08/2023]
Abstract
A label-free fluorescent aptasensing platform was fabricated and a simple and rapid method to detect Hg2+ ion in aqueous solution was put forward by means of berberine and Hg2+ ion-aptamer are as the fluorescence probe and the recognition element, respectively. Various factors including the concentration of berberine, Hg2+ ion and Hg2+ ion-aptamer, pH effect and the reaction time were investigated in detail. Under the optimal experimental conditions, in the sensing system, the fluorescence intensity changes displayed a calibration response for Hg2+ ion in the range of 0.1 μM to 10.0 μM and the detection limit was of 7.7 nM (S/N = 3). The fabricated label-free fluorescence aptasensor is not only conveniently but also effectively applicable used for analysis of Hg2+ ion in blood serum and tap water samples and the recovery range is of 96.0%-105.7%. In brief, this study offers an easy, economical and stable assay system for detecting Hg2+ ion in rough condition.
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Affiliation(s)
- Xiuli Song
- Department of Chemistry, Taiyuan Normal University, Jinzhong 030619, PR China; Institute of Environmental Science, Shanxi University, Taiyuan 030006, PR China
| | - Baochun Fu
- Institute of Horticulture, Shanxi Academy of Agriculture Science, Taiyuan 030031, PR China
| | - Yifeng Lan
- Institute of Environmental Science, Shanxi University, Taiyuan 030006, PR China
| | - Yanxia Chen
- Institute of Environmental Science, Shanxi University, Taiyuan 030006, PR China
| | - Yanli Wei
- Institute of Environmental Science, Shanxi University, Taiyuan 030006, PR China.
| | - Chuan Dong
- Institute of Environmental Science, Shanxi University, Taiyuan 030006, PR China
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9
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Basu A, Kumar GS. Nucleic acids binding strategies of small molecules: Lessons from alkaloids. Biochim Biophys Acta Gen Subj 2018; 1862:1995-2016. [DOI: 10.1016/j.bbagen.2018.06.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 06/11/2018] [Accepted: 06/11/2018] [Indexed: 01/14/2023]
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10
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Hesari A, Ghasemi F, Cicero AFG, Mohajeri M, Rezaei O, Hayat SMG, Sahebkar A. Berberine: A potential adjunct for the treatment of gastrointestinal cancers? J Cell Biochem 2018; 119:9655-9663. [DOI: 10.1002/jcb.27392] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 07/09/2018] [Indexed: 12/14/2022]
Affiliation(s)
- AmirReza Hesari
- Department of Biotechnology Faculty of Medicine, Arak University of Medical Sciences Arak Iran
| | - Faezeh Ghasemi
- Department of Biotechnology Faculty of Medicine, Arak University of Medical Sciences Arak Iran
| | - Arrigo F. G. Cicero
- Medical and Surgical Sciences Department University of Bologna Bologna Italy
| | - Mohammad Mohajeri
- Neurogenic Inflammation Research Center Mashhad University of Medical Sciences Mashhad Iran
- Department of Medical Biotechnology Faculty of Medicine, Mashhad University of Medical Sciences Mashhad Iran
| | - Omid Rezaei
- Faculty of Medicine, Arak University of Medical Sciences Arak Iran
| | | | - Amirhossein Sahebkar
- Neurogenic Inflammation Research Center Mashhad University of Medical Sciences Mashhad Iran
- Biotechnology Research Center, Pharmaceutical Technology Institute Mashhad University of Medical Sciences Mashhad Iran
- School of Pharmacy Mashhad University of Medical Sciences Mashhad Iran
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11
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Probing the binding of lomefloxacin to a calf thymus DNA-histone H1 complex by multi-spectroscopic and molecular modeling techniques. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.02.031] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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12
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Shakibapour N, Dehghani Sani F, Beigoli S, Sadeghian H, Chamani J. Multi-spectroscopic and molecular modeling studies to reveal the interaction between propyl acridone and calf thymus DNA in the presence of histone H1: binary and ternary approaches. J Biomol Struct Dyn 2018; 37:359-371. [DOI: 10.1080/07391102.2018.1427629] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Niloufar Shakibapour
- Faculty of Sciences, Department of Biology, Islamic Azad University, Mashhad Branch, Mashhad, Iran
| | - Farzad Dehghani Sani
- Faculty of Sciences, Department of Biology, Islamic Azad University, Mashhad Branch, Mashhad, Iran
| | - Sima Beigoli
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Hamid Sadeghian
- Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Laboratory Sciences, School of Paramedical Sciences, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Jamshidkhan Chamani
- Faculty of Sciences, Department of Biology, Islamic Azad University, Mashhad Branch, Mashhad, Iran
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13
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Guo Q, Zhang Z, Song Y, Liu S, Gao W, Qiao H, Guo L, Wang J. Investigation on interaction of DNA and several cationic surfactants with different head groups by spectroscopy, gel electrophoresis and viscosity technologies. CHEMOSPHERE 2017; 168:599-605. [PMID: 27838032 DOI: 10.1016/j.chemosphere.2016.11.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 10/01/2016] [Accepted: 11/05/2016] [Indexed: 06/06/2023]
Abstract
In this study, the interaction between DNA and several cationic surfactants with different head groups such as ethyl hexadecyl dimethyl ammonium bromide (EHDAB), hexadecyl dimethyl benzyl ammonium chloride (HDBAC), and cetyl pyridinium bromide (CPB) were investigated by UV-vis absorption, fluorescence and circular dichroism (CD) spectroscopy, gel electrophoresis, and viscosity technologies. The results show that these cationic surfactants can interact with DNA and major binding modes are electrostatic and hydrophobic. Also, CPB and HDBAC molecules interact with DNA by partial intercalation, and CPB has slightly stronger intercalation than HDBAC, while EHDAB interacts with DNA by non-intercalation. The different head groups of the surfactant molecules can influence the interaction strength. CPB has the stronger interaction with DNA than the others. Moreover, surfactant concentration, the ratio of DNA and fluorescence probe, ionic strength can influence the interaction. The surfactants may interact with DNA by the competition reactions with BR for DNA-BR. The increase of ionic strength may favor the surface binding between DNA and surfactants to some extent. This work provides deep mechanistic insight on the toxicity of cationic surfactants with different head groups to DNA molecules.
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Affiliation(s)
- Qing Guo
- School of Environment, Liaoning University, Shenyang 110036, PR China
| | - Zhaohong Zhang
- School of Environment, Liaoning University, Shenyang 110036, PR China.
| | - Youtao Song
- School of Environment, Liaoning University, Shenyang 110036, PR China
| | - Shuo Liu
- Shenyang Red Cross Hospital, Shenyang 110014, PR China
| | - Wei Gao
- School of Environment, Liaoning University, Shenyang 110036, PR China
| | - Heng Qiao
- School of Environment, Liaoning University, Shenyang 110036, PR China; Pony Testing International Group, Qingdao 266100, PR China
| | - Lili Guo
- School of Environment, Liaoning University, Shenyang 110036, PR China
| | - Jun Wang
- School of Chemistry, Liaoning University, Shenyang 110036, PR China.
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14
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Zhou X, Chen M, Zheng Z, Zhu GY, Jiang ZH, Bai LP. Synthesis and evaluation of novel 12-aryl berberine analogues with hypoxia-inducible factor-1 inhibitory activity. RSC Adv 2017. [DOI: 10.1039/c7ra02238g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Seven novel 12-phenyl berberines (3a–3f, 3k) showed more potent inhibitory effect on hypoxia-induced HIF-1 transcriptional activity than the parent berberine.
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Affiliation(s)
- Xiaobo Zhou
- State Key Laboratory of Quality Research in Chinese Medicine
- Macau Institute for Applied Research in Medicine and Health
- Macau University of Science and Technology
- Taipa
- China
| | - Ming Chen
- State Key Laboratory of Quality Research in Chinese Medicine
- Macau Institute for Applied Research in Medicine and Health
- Macau University of Science and Technology
- Taipa
- China
| | - Zhiyuan Zheng
- State Key Laboratory of Quality Research in Chinese Medicine
- Macau Institute for Applied Research in Medicine and Health
- Macau University of Science and Technology
- Taipa
- China
| | - Guo-Yuan Zhu
- State Key Laboratory of Quality Research in Chinese Medicine
- Macau Institute for Applied Research in Medicine and Health
- Macau University of Science and Technology
- Taipa
- China
| | - Zhi-Hong Jiang
- State Key Laboratory of Quality Research in Chinese Medicine
- Macau Institute for Applied Research in Medicine and Health
- Macau University of Science and Technology
- Taipa
- China
| | - Li-Ping Bai
- State Key Laboratory of Quality Research in Chinese Medicine
- Macau Institute for Applied Research in Medicine and Health
- Macau University of Science and Technology
- Taipa
- China
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15
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An exonuclease I-based label-free fluorometric aptasensor for adenosine triphosphate (ATP) detection with a wide concentration range. Biosens Bioelectron 2016; 63:311-316. [PMID: 25113049 DOI: 10.1016/j.bios.2014.07.064] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2014] [Revised: 07/24/2014] [Accepted: 07/25/2014] [Indexed: 12/17/2022]
Abstract
A novel aptamer-based label-free assay for sensitive and selective detection of ATP was developed. This assay employs a new aptamer/fluorescent probe system that shows resistance to exonuclease I (Exo I) digestion upon binding to ATP molecules. In the absence of ATP, the complex between the ATP-binding aptamer (ATP-aptamer) and a DNA binding dye, berberine, is digested upon the addition of exonuclease I, leading to the release of berberine into solution and consequently, quenched berberine fluorescence. In the presence of ATP, the ATP-binding aptamer folds into a G-quadruplex structure that is resistant to Exo I digestion. Accordingly, berberine is protected in the G-quadruplex structure and high fluorescence intensity is observed. As such, based on the fluorescence signal change, a label-free fluorescence assay for ATP was developed. Factors affecting the analysis of ATP including the concentration of ATP-binding aptamer, reaction time, temperature and the concentration of Exo I were comprehensively investigated. Under optimal conditions, the fluorescence intensity of the sensing system displayed a response for ATP in a wide range up to 17.5 mM with a detection limit of 140 nM.
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16
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Chen CY, Bai LP, Ke ZF, Liu Y, Wang JR, Jiang ZH. G-Quadruplex DNA-binding quaternary alkaloids from Tylophora atrofolliculata. RSC Adv 2016. [DOI: 10.1039/c6ra21056b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Quaternary alkaloids from T. atrofolliculata with human telomeric DNA G-quadruplex binding capacity.
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Affiliation(s)
- Cheng-Yu Chen
- State Key Laboratory of Quality Research in Chinese Medicine
- Macau Institute for Applied Research in Medicine and Health
- Macau University of Science and Technology
- Taipa
- China
| | - Li-Ping Bai
- State Key Laboratory of Quality Research in Chinese Medicine
- Macau Institute for Applied Research in Medicine and Health
- Macau University of Science and Technology
- Taipa
- China
| | - Zhuo-Feng Ke
- School of Materials Science and Engineering
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-sen University
- Guangzhou 510275
| | - Yan Liu
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- PR China
| | - Jing-Rong Wang
- State Key Laboratory of Quality Research in Chinese Medicine
- Macau Institute for Applied Research in Medicine and Health
- Macau University of Science and Technology
- Taipa
- China
| | - Zhi-Hong Jiang
- State Key Laboratory of Quality Research in Chinese Medicine
- Macau Institute for Applied Research in Medicine and Health
- Macau University of Science and Technology
- Taipa
- China
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Xie J, Chen D, Wu Q, Wang J, Qiao H. Spectroscopic analyses on interaction of melamine, cyanuric acid and uric acid with DNA. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 149:714-721. [PMID: 25988817 DOI: 10.1016/j.saa.2015.04.060] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2014] [Revised: 03/10/2015] [Accepted: 04/21/2015] [Indexed: 06/04/2023]
Abstract
In this work, the interaction of DNA with melamine (MEL), cyanuric acid (CYA) and uric acid (UA) were studied, respectively, by means of UV-vis, fluorescence, circular dichroism (CD) spectroscopy, viscosity and gel electrophoresis methods. The fluorescence quenching was used to study the interaction models of MEL, CYA and UA with DNA, respectively, and the bimolecular quenching constant (Kq), apparent quenching constant (Ksv), effective binding constant (KA) and corresponding dissociation constant (KD) and binding site number (n) were calculated by adopting Stern-Volmer, Lineweaver-Burk and Double logarithm equations. The results show that MEL, CYA and UA are all able to markedly bind to DNA, and the binding strength order is DNA-UA>DNA-CYA>DNA-MEL. It is wished that these researches would facilitate the understanding of the formation of kidney stones and gout in the body after ingesting excess MEL.
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Affiliation(s)
- Jinhui Xie
- College of Chemistry, Liaoning University, Shenyang 110036, PR China
| | - Dandan Chen
- College of Chemistry, Liaoning University, Shenyang 110036, PR China
| | - Qiong Wu
- College of Chemistry, Liaoning University, Shenyang 110036, PR China
| | - Jun Wang
- College of Chemistry, Liaoning University, Shenyang 110036, PR China.
| | - Heng Qiao
- College of Environment, Liaoning University, Shenyang 110036, PR China
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Guo Y, Chen Y, Wei Y, Li H, Dong C. Label-free fluorescent aptasensor for potassium ion using structure-switching aptamers and berberine. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 136 Pt C:1635-1641. [PMID: 25459726 DOI: 10.1016/j.saa.2014.10.058] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Revised: 10/09/2014] [Accepted: 10/12/2014] [Indexed: 06/04/2023]
Abstract
A simple, rapid and label-free fluorescent aptasensor was fabricated for the detection of potassium ion (K(+) ion) in aqueous solution using K(+) ion-stabilized single stranded DNA (ssDNA) with G-rich sequence as the recognition element and a fluorescent dye, berberine, as the fluorescence probe. In the presence of K(+) ion, the G-rich ssDNA is promoted to form the aptamer-target complex with a G-quadruplex conformation, and berberine binding to the G-quadruplex structure results in the enhancement of its fluorescence. The fluorescence intensity of the sensing system displayed a calibration response for K(+) ion in the range of 0-1600μM with a detection limit of 31nM (S/N=3) and a relative standard deviation (RSD) of 0.45%. This label-free fluorescence aptasensor is conveniently and effectively applicable for analysis of K(+) ion in blood serum samples with the recovery range of 81.7-105.3%. The assay for detection of potassium ion is easy, economical, robust, and stable in rough conditions.
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Affiliation(s)
- Yanqing Guo
- Department of Chemistry, Jinzhong University, Jinzhong, Shanxi 030600, PR China; Institute of Environmental Science, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, PR China
| | - Yanxia Chen
- Institute of Environmental Science, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, PR China
| | - Yanli Wei
- Institute of Environmental Science, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, PR China.
| | - Huanhuan Li
- Institute of Environmental Science, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, PR China
| | - Chuan Dong
- Institute of Environmental Science, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, PR China.
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Cui HM, Zhang QY, Wang JL, Chen JL, Zhang YL, Tong XL. In vitro studies of berberine metabolism and its effect of enzyme induction on HepG2 cells. JOURNAL OF ETHNOPHARMACOLOGY 2014; 158 Pt A:388-396. [PMID: 25456436 DOI: 10.1016/j.jep.2014.10.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Revised: 09/23/2014] [Accepted: 10/13/2014] [Indexed: 06/04/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Berberine (BER) and BER-original herbal medicines have a variety of pharmacological functions and have been widely used in clinical. However, its effect of enzyme induction on cytochrome P450 (CYP) in human hepatocytes is unknown. MATERIAL AND METHOD Metabolism of berberine and its effect on main metabolic enzymes in HepG2 cell in vitro was investigated. Cocktail probe drugs, mRNA expression and protein expression were used to evaluate the metabolism potency. Meanwhile, an UPLC-MS/MS method was validated for the analysis of BER and four probe drugs in HepG2 cell. RESULT BER significantly increased the metabolism of midazolam, phenacetin and tolbutamide by inducing the CYP1A2 and 3A4 enzyme in a dose-dependent manner, the mRNA and protein expression of CYP1A2 and 3A4 were increased by berberine at 1000ng·mL(-1). The activity of CYP1A2 and 3A4 could be induced by BER more than 500ng·mL(-1) in HepG2 cell, which was confirmed by the increase of its mRNA and protein expression. CONCLUSION BER increases the metabolism of cocktail drugs such as midazolam, phenacetin and tolbutamide by increasing the mRNA and protein expression of CYP1A2 and 3A4.
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Affiliation(s)
- Han-Ming Cui
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China.
| | - Qiu-Yan Zhang
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Jia-Long Wang
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Jian-Long Chen
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Yu-Ling Zhang
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Xiao-Lin Tong
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China.
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Ma C, Tang K, Liu Q, Zhu R, Cao Z. Calmodulin as a potential target by which berberine induces cell cycle arrest in human hepatoma Bel7402 cells. Chem Biol Drug Des 2014; 81:775-83. [PMID: 23421648 DOI: 10.1111/cbdd.12124] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2012] [Revised: 01/05/2013] [Accepted: 02/09/2013] [Indexed: 01/04/2023]
Abstract
Berberine is an isoquinoline alkaloid that has drawn extensive attention because it possesses various biological activities. Several mechanisms have been proposed to interpret the anticancer activity of berberine. However, these explanations are mostly based on its downstream-regulated genes or proteins; information on the direct target proteins that mediate the antiproliferative action of berberine remains unclear. In this study, a computational pipeline based on a ligand-protein inverse docking program and mining of the 'Connectivity MAP' data was adopted to explore the potential target proteins for berberine. The results showed that four proteins, that is calmodulin, cytochrome P450 3A4, sex hormone-binding globulin, and carbonic anhydrase II, were suggested to be the potential targets of berberine. The anticalmodulin property of berberine was demonstrated with an in vitro phosphodiesterase activity assay. Flow cytometric analysis found that G1 cell cycle arrest induced by berberine in Bel7402 cells was enhanced by cotreatment with calmodulin inhibitors. Western blotting results indicated that berberine treatment decreased phosphorylation of calmodulin kinase II and blocked subsequent MEK1 activation as well as p27 protein degradation. These results suggested that calmodulin might play crucial roles in berberine-induced cell cycle arrest in cancer cells.
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Affiliation(s)
- Chao Ma
- School of Life Sciences and Technology, Tongji University, 1239 Siping Road, Shanghai 200092, China
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21
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Berberine inhibits the growth of human colorectal adenocarcinoma in vitro and in vivo. J Nat Med 2013; 68:53-62. [PMID: 23604974 DOI: 10.1007/s11418-013-0766-z] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Accepted: 03/18/2013] [Indexed: 01/31/2023]
Abstract
Berberine is an alkaloid isolated from the Chinese herbal medicine Huanglian, and has long been used as an antibiotic. Its antineoplastic properties were subsequently discovered in vitro. The purpose of this study was to investigate the effects of berberine on the growth of human colorectal carcinoma cells in vitro and in vivo. The results showed that berberine inhibited human colorectal adenocarcinoma (LoVo) cell growth in a time- and dose-dependent manner. A WST-1 assay showed that the IC50 value after 72 h was 40.79 ± 4.11 μM. Cell cycle analysis of 40 μM berberine-treated LoVo cells by flow cytometry showed accumulation of cells in the G2/M phase. The inhibition of LoVo cell growth by berberine was associated with the suppression of cyclin B1, cdc2, and cdc25c proteins. Berberine at a dose of 50 mg kg(-1) day(-1) showed inhibitory rates of 45.3% in a human colorectal adenocarcinoma xenograft in nude mice. The combination of berberine and 5-fluorouracil (5-FU) had a higher inhibitory rate (59.8%) than the berberine group (36.4%, P = 0.01), but no significant difference was observed between the 5-FU group (43.0%, P = 0.06) and the combination group. These results support the possibility that berberine may be useful as an alternative therapy for colorectal carcinoma.
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Wang YM, Zhou CQ, Chen JX, Chen WH. Synthesis and DNA-binding Properties of Trehalose-tethered Monomeric and Dimeric Berberines. B KOREAN CHEM SOC 2013. [DOI: 10.5012/bkcs.2013.34.3.749] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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23
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Basu A, Jaisankar P, Suresh Kumar G. Binding of the 9-O-N-aryl/arylalkyl amino carbonyl methyl substituted berberine analogs to tRNA(phe.). PLoS One 2013; 8:e58279. [PMID: 23526972 PMCID: PMC3602459 DOI: 10.1371/journal.pone.0058279] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2012] [Accepted: 02/01/2013] [Indexed: 12/19/2022] Open
Abstract
Background Three new analogs of berberine with aryl/arylalkyl amino carbonyl methyl substituent at the 9-position of the isoquinoline chromophore along with berberrubine were studied for their binding to tRNAphe by wide variety of biophysical techniques like spectrophotometry, spectrofluorimetry, circular dichroism, thermal melting, viscosity and isothermal titration calorimetry. Methodology/Principal Findings Scatchard binding isotherms revealed that the cooperative binding mode of berberine was propagated in the analogs also. Thermal melting studies showed that all the 9-O-N-aryl/arylalkyl amino carbonyl methyl substituted berberine analogs stabilized the tRNAphe more in comparison to berberine. Circular dichroism studies showed that these analogs perturbed the structure of tRNAphe more in comparison to berberine. Ferrocyanide quenching studies and viscosity results proved the intercalative binding mode of these analogs into the helical organization of tRNAphe. The binding was entropy driven for the analogs in sharp contrast to the enthalpy driven binding of berberine. The introduction of the aryl/arylalkyl amino carbonyl methyl substituent at the 9-position thus switched the enthalpy driven binding of berberine to entropy dominated binding. Salt and temperature dependent calorimetric studies established the involvement of multiple weak noncovalent interactions in the binding process. Conclusions/Significance The results showed that 9-O-N-aryl/arylalkyl amino carbonyl methyl substituted berberine analogs exhibited almost ten folds higher binding affinity to tRNAphe compared to berberine whereas the binding of berberrubine was dramatically reduced by about twenty fold in comparison to berberine. The spacer length of the substitution at the 9-position of the isoquinoline chromophore appears to be critical in modulating the binding affinities towards tRNAphe.
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Affiliation(s)
- Anirban Basu
- Chemistry Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India
- Biophysical Chemistry Laboratory, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | | | - Gopinatha Suresh Kumar
- Chemistry Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India
- Biophysical Chemistry Laboratory, CSIR-Indian Institute of Chemical Biology, Kolkata, India
- * E-mail:
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24
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Synthesis of novel bis-anthraquinone derivatives and their biological evaluation as antitumor agents. Arch Pharm Res 2013; 36:573-8. [DOI: 10.1007/s12272-013-0074-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2012] [Accepted: 02/24/2013] [Indexed: 11/27/2022]
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25
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Wang YM, Zhou CQ, Chen JX, Lin YL, Zeng W, Kuang BC, Fu WL, Chen WH. Facile synthesis of a polyether-tethered dimeric berberine as a highly effective DNA-cleaving agent in the presence of Cu(ii) ion. MEDCHEMCOMM 2013. [DOI: 10.1039/c3md00136a] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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26
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Le PM, McCooeye M, Windust A. Characterization of the alkaloids in goldenseal (Hydrastis canadensis) root by high resolution Orbitrap LC-MSn. Anal Bioanal Chem 2012. [DOI: 10.1007/s00216-012-6539-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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27
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Khan AY, Hossain M, Kumar GS. Binding of plant alkaloids berberine and palmatine to serum albumins: a thermodynamic investigation. Mol Biol Rep 2012; 40:553-66. [DOI: 10.1007/s11033-012-2092-z] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2012] [Accepted: 10/03/2012] [Indexed: 01/29/2023]
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Li J, Li B, Wu Y, Shuang S, Dong C, Choi MMF. Luminescence and binding properties of two isoquinoline alkaloids chelerythrine and sanguinarine with ctDNA. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 95:80-85. [PMID: 22613127 DOI: 10.1016/j.saa.2012.04.075] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2011] [Revised: 03/30/2012] [Accepted: 04/18/2012] [Indexed: 06/01/2023]
Abstract
The binding mode and mechanism of the interactions between two planar cationic alkaloids chelerythrine (Che) and sanguinarine (San) with calf thymus DNA (ctDNA) were systematically investigated at pH 5.40 using UV-vis absorption spectroscopy, fluorescence spectroscopy and cyclic voltammetry. Che and San show strong fluorescence at 570 and 589 nm, respectively. Che displays fluorescence enhancement with ctDNA whereas the fluorescence of San is quenched on interaction with ctDNA. In addition, UV-vis spectra of both alkaloids show apparent hypochromicity and are bathochromic shifted, indicating that they could intercalate into ctDNA bases. The fluorescence polarization of Che and San increases in the presence of ctDNA, again implying the intercalation of two alkaloids with ctDNA. This conclusion was also supported by the results obtained from anion quenching and cyclic voltammetry. The binding constants of both alkaloids with ctDNA were calculated in the order of 10(5)L/mol. San binds with ctDNA 3-fold stronger than Che. The stoichiometric bindings are five nucleotides per Che or San. Electrostatic binding also exists between the alkaloids and DNA helix. Finally, theoretical calculations show that only certain parts of Che and San molecules intercalate into the DNA helix.
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Affiliation(s)
- Junfen Li
- School of Chemistry and Chemical Engineering, Research Center of Environmental Science and Engineering, Shanxi University, 92 Wucheng Street, Taiyuan 030006, PR China
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29
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Straightforward preparation of organic colloidal particles by harnessing spontaneous non-covalent interactions of active molecules from natural origin. J Colloid Interface Sci 2012; 374:150-6. [DOI: 10.1016/j.jcis.2012.01.056] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2011] [Revised: 01/23/2012] [Accepted: 01/24/2012] [Indexed: 11/19/2022]
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30
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Tyagi G, Charak S, Mehrotra R. Binding of an indole alkaloid, vinblastine to double stranded DNA: A spectroscopic insight in to nature and strength of interaction. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2012; 108:48-52. [DOI: 10.1016/j.jphotobiol.2011.12.009] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2011] [Revised: 11/07/2011] [Accepted: 12/18/2011] [Indexed: 11/17/2022]
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31
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Li XL, Hu YJ, Wang H, Yu BQ, Yue HL. Molecular spectroscopy evidence of berberine binding to DNA: comparative binding and thermodynamic profile of intercalation. Biomacromolecules 2012; 13:873-80. [PMID: 22316074 DOI: 10.1021/bm2017959] [Citation(s) in RCA: 199] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Berberine (BH) is an important traditional medicinal herb endowed with diverse pharmacological and biological activities. In this work, the binding characteristics and molecular mechanism of the interaction between the BH and herring sperm DNA were explored by UV-vis absorbance and fluorescence spectroscopy. In the mechanism discussion, fluorescence quenching, absorption spectra, competition experiment, and iodide quenching experiment studies hinted at an intercalative mode of binding for BH to DNA. Fluorescence studies revealed the binding constant (K) of BH-DNA was ∼10(4) L·mol(-1). The effects of temperature, chemical denaturants, thermal denaturation, and pH were studied to show the factors of the interaction and provided further support for the intercalative binding mode. The results of thermodynamic parameters ΔG, ΔH, and ΔS at different temperatures indicated that the hydrogen bonds and van der Waals interactions played major roles in the reaction, and the effect of ionic strength indicated that electrostatic attraction between the BH and DNA was also a component of the interaction.
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Affiliation(s)
- Xiao-Ling Li
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, Department of Chemistry, Hubei Normal University, Huangshi 435002, PR China
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32
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Synthesis and human telomeric G-quadruplex DNA-binding activity of glucosaminosides of shikonin/alkannin. Bioorg Med Chem Lett 2012; 22:1582-6. [DOI: 10.1016/j.bmcl.2011.12.143] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2011] [Revised: 12/24/2011] [Accepted: 12/29/2011] [Indexed: 11/19/2022]
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33
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Wang JR, Tanaka T, Zhang H, Kouno I, Jiang ZH. Formation and Conformation of Baicalin–Berberine and Wogonoside–Berberine Complexes. Chem Pharm Bull (Tokyo) 2012; 60:706-11. [DOI: 10.1248/cpb.60.706] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Jing-Rong Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology
| | - Takashi Tanaka
- Department of Natural Product Chemistry, Graduate School of Biomedical Sciences, Nagasaki University
| | - Hong Zhang
- Department of Natural Product Chemistry, Graduate School of Biomedical Sciences, Nagasaki University
| | - Isao Kouno
- Department of Natural Product Chemistry, Graduate School of Biomedical Sciences, Nagasaki University
| | - Zhi-Hong Jiang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology
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Bodiwala HS, Sabde S, Mitra D, Bhutani KK, Singh IP. Synthesis of 9-substituted derivatives of berberine as anti-HIV agents. Eur J Med Chem 2011; 46:1045-9. [DOI: 10.1016/j.ejmech.2011.01.016] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2010] [Revised: 01/06/2011] [Accepted: 01/12/2011] [Indexed: 10/18/2022]
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35
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Cui JS, Xu F, Pang JY, Chen WH, Jiang ZH. Synthesis and DNA-Binding Affinities of Protoberberine-Based Multivalent Agents. Chem Biodivers 2010; 7:2908-16. [DOI: 10.1002/cbdv.200900386] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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36
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Ozbalci Ç, Unsal Ç, Kazan D, Sariyar-Akbulut B. Proteomic response of Escherichia coli to the alkaloid extract of Papaver polychaetum. ANN MICROBIOL 2010. [DOI: 10.1007/s13213-010-0118-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Bhadra K, Kumar GS. Therapeutic potential of nucleic acid-binding isoquinoline alkaloids: Binding aspects and implications for drug design. Med Res Rev 2010; 31:821-62. [DOI: 10.1002/med.20202] [Citation(s) in RCA: 219] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Maiti M, Kumar GS. Biophysical aspects and biological implications of the interaction of benzophenanthridine alkaloids with DNA. Biophys Rev 2009; 1:119-129. [PMID: 28509993 DOI: 10.1007/s12551-009-0014-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2009] [Accepted: 08/03/2009] [Indexed: 10/20/2022] Open
Abstract
Benzophenanthridine alkaloids represent a very interesting and significant group of natural products that exhibit a broad range of biological and pharmacological properties. Among this group of alkaloids, sanguinarine, nitidine, fagaronine, and chelerythrine have the potential to form molecular complexes with DNA structures and have attracted recent attention for their possible clinical and pharmacological utility. This review focuses on the interaction of these alkaloids with polymorphic DNA structures (B-form, Z-form, HL-form, and triple helical form) reported by several research groups employing various physical techniques such as spectrophotometry, spectrofluorimetry, circular dichroism, NMR spectroscopy, thermal melting, viscometry as well as thermodynamic analysis by isothermal titration calorimetry and differential scanning calorimetry to elucidate the mode and mechanism of action at the molecular level to determine the structure-activity relationship. DNA binding properties of these alkaloids are interpreted in relation to their biological activity.
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Affiliation(s)
- Motilal Maiti
- Biophysical Chemistry Laboratory, Indian Institute of Chemical Biology, Kolkata, 700032, India.
| | - Gopinatha Suresh Kumar
- Biophysical Chemistry Laboratory, Indian Institute of Chemical Biology, Kolkata, 700032, India
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Lee CS, Yu TC, Luo JW, Cheng YY, Chuang CP. Radical-initiated cyclization as a key step for the synthesis of oxoprotoberberine alkaloids. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.05.095] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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40
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Hydroxyl radical scavenging activities of isoquinoline alkaloids isolated from Coptis chinensis. Arch Pharm Res 2009; 32:341-5. [PMID: 19387576 DOI: 10.1007/s12272-009-1305-z] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2009] [Revised: 02/26/2009] [Accepted: 03/05/2009] [Indexed: 02/04/2023]
Abstract
The hydroxyl radical (*OH) scavenging and ferrous ion chelating activities of four isoquinoline alkaloids isolated from Coptis chinensis Franch were studied for the identification of their structural characteristics to scavenge *OH. The *OH was generated via Fe(II)-catalazed Fenton reaction in this study and the reliable measurement of *OH scavenging activities of isoquinoline alkaloids were achieved using electron spin resonance (ESR) spectrometry method. At the 1 mM concentration, berberrubine (85%) showed the strongest *OH scavenging activity and the next were in the decreasing order of coptisine (79%), berberine (23%), and palmatine (22%). The ferrous ion chelating effects of the alkaloids showed similar pattern with their *OH scavenging effects. These results suggest that *OH scavenging effects of the alkaloids were closely related to their ferrous ion chelating activities. In addition, metal chelating functional groups such as hydroxy group at C-9 and methylenedioxy group at C-9 and C-10 were thought to contribute to the *OH scavenging activities of the isoquinoline alkaloids.
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Li YH, Yang P, Kong WJ, Wang YX, Hu CQ, Zuo ZY, Wang YM, Gao H, Gao LM, Feng YC, Du NN, Liu Y, Song DQ, Jiang JD. Berberine analogues as a novel class of the low-density-lipoprotein receptor up-regulators: synthesis, structure-activity relationships, and cholesterol-lowering efficacy. J Med Chem 2009; 52:492-501. [PMID: 19090767 DOI: 10.1021/jm801157z] [Citation(s) in RCA: 79] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Twenty-nine derivatives of berberine (1) or pseudoberberine (2) were designed, semisynthesized, and evaluated for their up-regulatory activity on the low-density-lipoprotein receptor (LDLR) expression. SAR analysis revealed that (i) the methylenedioxy group at the 2- and 3-position is an essential element to keep the activity, (ii) the 7-position quaternary ammonium and planar structure of the compound are activity-required, and (iii) addition of electron-donating groups at the 7- or 13-position reduced the activity. Of the compound 1 analogues, compound 2 exhibited an increased activity on LDLR expression compared to 1. In the hyperlipidemic rats, compound 2 (100 (mg/kg)/day) reduced blood CHO and LDL-c by 42.6% and 49.4%, respectively, more efficient than 1 did (p < 0.01 for both). The results were confirmed in the hyperlipidemic mice. LD(50) of 2 in mice was over 5000 mg/kg (oral). We consider compound 2 a promising cholesterol-lowering drug candidate.
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Affiliation(s)
- Ying-Hong Li
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
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XU F, PANG J, LU B, WANG J, ZHANG Y, SHE Z, VRIJMOED LLP, GARETH JONES EB, LIN Y. Two Metabolites with DNA-Binding Affinity from the Mangrove FungusXylariasp. (#2508) from the South China Sea Coast. CHINESE J CHEM 2009. [DOI: 10.1002/cjoc.200990059] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Bai LP, Cai Z, Zhao ZZ, Nakatani K, Jiang ZH. Site-specific binding of chelerythrine and sanguinarine to single pyrimidine bulges in hairpin DNA. Anal Bioanal Chem 2008; 392:709-16. [DOI: 10.1007/s00216-008-2302-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2008] [Revised: 06/02/2008] [Accepted: 07/17/2008] [Indexed: 11/30/2022]
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Wang Z, Guo X, Liu Z, Cui M, Song F, Liu S. Studies on alkaloids binding to GC-rich human survivin promoter DNA using positive and negative ion electrospray ionization mass spectrometry. JOURNAL OF MASS SPECTROMETRY : JMS 2008; 43:327-335. [PMID: 17968851 DOI: 10.1002/jms.1320] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Electrospray ionization mass spectrometry (ESI-MS) was used to investigate the binding of 13 alkaloids to two GC-rich DNA duplexes which are critical sequences in human survivin promoter. Negative ion ESI-MS was first applied to screen the binding of the alkaloids to the duplexes. Six alkaloids (including berberine, jatrorrhizine, palmatine, reserpine, berbamine, and tetrandrine) show complexation with the target DNA sequences. Relative binding affinities were estimated from the negative ion ESI data, and the alkaloids show a binding preference to the duplex with higher GC content. Positive ion ESI mass spectra of the complexes were also recorded and compared with those obtained in negative ion mode. Only the 1 : 1 complex with berbamine was observed with lower abundance in the positive ion mass spectrum while complexes with the other alkaloids were absolutely absent. Collision-induced dissociation (CID) experiments indicate that the complexes with the protoberberine alkaloids (berberine, jatrorrhizine, and palmatine) dissociate via base loss and covalent cleavage. In contrast, product ion spectra of the complexes with the alkaloids reserpine, berbamine, and tetrandrine show the predominant loss of a neutral alkaloid molecule, accompanied by base loss and covalent cleavage to a lesser extent. A comparison of the gas-phase behaviors of complexes with the alkaloids to those with the traditional DNA binders has suggested an intercalative binding mode of these alkaloids to the target DNA duplexes.
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Affiliation(s)
- Zhaofu Wang
- Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun Center of Mass Spectrometry, Changchun, 130022, P R China
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Bhadra K, Maiti M, Kumar GS. Thermodynamics of the binding of cytotoxic protoberberine molecule coralyne to deoxyribonucleic acids. Biochim Biophys Acta Gen Subj 2008; 1780:298-306. [DOI: 10.1016/j.bbagen.2007.11.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2007] [Revised: 11/14/2007] [Accepted: 11/30/2007] [Indexed: 11/15/2022]
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Bhadra K, Maiti M, Kumar GS. Molecular recognition of DNA by small molecules: AT base pair specific intercalative binding of cytotoxic plant alkaloid palmatine. Biochim Biophys Acta Gen Subj 2007; 1770:1071-80. [PMID: 17434677 DOI: 10.1016/j.bbagen.2007.03.001] [Citation(s) in RCA: 119] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2006] [Revised: 02/27/2007] [Accepted: 03/03/2007] [Indexed: 11/28/2022]
Abstract
The base dependent binding of the cytotoxic alkaloid palmatine to four synthetic polynucleotides, poly(dA).poly(dT), poly(dA-dT).poly(dA-dT), poly(dG).poly(dC) and poly(dG-dC).poly(dG-dC) was examined by competition dialysis, spectrophotometric, spectrofluorimetric, thermal melting, circular dichroic, viscometric and isothermal titration calorimetric (ITC) studies. Binding of the alkaloid to various polynucleotides was dependent upon sequences of base pairs. Binding data obtained from absorbance measurements according to neighbour exclusion model indicated that the intrinsic binding constants decreased in the order poly(dA).poly(dT)>poly(dA-dT).poly(dA-dT)>poly(dG-dC).poly(dG-dC)>poly(dG).poly(dC). This affinity was also revealed by the competition dialysis, increase of steady state fluorescence intensity, increase in fluorescence quantum yield, stabilization against thermal denaturation and perturbations in circular dichroic spectrum. Among the polynucleotides, poly(dA).poly(dT) showed positive cooperativity at binding values lower than r=0.05. Viscosity studies revealed that in the strong binding region, the increase of contour length of DNA depended strongly on the sequence of base pairs being higher for AT polymers and induction of unwinding-rewinding process of covalently closed superhelical DNA. Isothermal titration calorimetric data showed a single entropy driven binding event in the AT homo polymer while that with the hetero polymer involved two binding modes, an entropy driven strong binding followed by an enthalpy driven weak binding. These results unequivocally established that the alkaloid palmatine binds strongly to AT homo and hetero polymers by mechanism of intercalation.
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Affiliation(s)
- Kakali Bhadra
- Biophysical Chemistry Laboratory, Indian Institute of Chemical Biology, Kolkata 700 032, India
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Qin Y, Pang JY, Chen WH, Zhao ZZ, Liu L, Jiang ZH. Inhibition of DNA Topoisomerase I by Natural and Synthetic Mono- and Dimeric Protoberberine Alkaloids. Chem Biodivers 2007; 4:481-7. [PMID: 17372950 DOI: 10.1002/cbdv.200790040] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A series of natural (i.e., 1-7) and synthetic (i.e., 8-23) protoberberine alkaloids were evaluated for their inhibitory activities towards DNA topoisomerase I. Both the natural, monomeric protoberberine alkaloids and their mono-modified congeners showed only minor activities. In contrast, most of the dimeric protoberberine alkaloids, especially compounds 12-22, were highly active, with a similar cleavage efficiency as camptothecin (CPT), a well-known, potent topoisomerase-I inhibitor. Thus, these dimeric compounds are promising candidates to be further elaborated as anticancer leads. The mechanism of topoisomerase-I inhibition seems to be dependent on drug concentration for the dimeric protoberberines. At low concentration, they exhibit similar characteristics as CPT. At high concentration, this ability is mostly lost, and the dimers inhibit the relaxation activity of topoisomerase I. Thus, we suppose that the active, dimeric protoberberines strongly bind to plasmid DNA at elevated drug concentration. This most likely results in blocking the enzyme's access to plasmid DNA, thus inhibiting its relaxation.
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Affiliation(s)
- Yong Qin
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong
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Qin Y, Chen WH, Pang JY, Zhao ZZ, Liu L, Jiang ZH. DNA-Binding Affinities and Sequence Specificities of Protoberberine Alkaloids and Their Demethylated Derivatives: A Comparative Study. Chem Biodivers 2007; 4:145-53. [PMID: 17311227 DOI: 10.1002/cbdv.200790019] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Berberrubine (1a), jatrorubine (2a), and palmatrubine (3a) have been chemically prepared by partial demethylation of berberine (1), jatrorrhizine (2), and palmatine (3), respectively. Their interactions with calf thymus (CT) DNA, poly(dA-dT)poly(dA-dT), poly(dG-dC)poly(dG-dC), and eight AT-rich 12-mer double-stranded DNAs have been investigated by means of competitive ethidium bromide (EB) displacement experiments. The results showed that DNA-binding affinities of these protoberberine alkaloids have been significantly improved by partial demethylation, and that all of these alkaloids have the preferable binding affinities with AT-rich DNA. Especially, the sequence specificities of DNA-binding of demethylated derivatives 1a, 2a, and 3a had changed to a certain extent when compared with the parent alkaloids 1, 2, and 3, respectively. The binding mode of these alkaloids was further confirmed by UV spectroscopic titration experiments. All the compounds bind to double-stranded DNA most probably via an intercalating mode.
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Affiliation(s)
- Yong Qin
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong
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Grycová L, Dostál J, Marek R. Quaternary protoberberine alkaloids. PHYTOCHEMISTRY 2007; 68:150-75. [PMID: 17109902 DOI: 10.1016/j.phytochem.2006.10.004] [Citation(s) in RCA: 297] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2006] [Revised: 09/18/2006] [Accepted: 10/03/2006] [Indexed: 05/12/2023]
Abstract
This contribution reviews some general aspects of the quaternary iminium protoberberine alkaloids. The alkaloids represent a very extensive group of secondary metabolites with diverse structures, distribution in nature, and biological effects. The quaternary protoberberine alkaloids (QPA), derived from the 5,6-dihydrodibenzo[a,g]quinolizinium system, belong to a large class of isoquinoline alkaloids. Following a general introduction, the plant sources of QPA, their biosynthesis, and procedures for their isolation are discussed. Analytical methods and spectral data are summarized with emphasis on NMR spectroscopy. The reactivity of QPA is characterized by the sensitivity of the iminium bond CN(+) to nucleophilic attack. The addition of various nucleophiles to the protoberberine skeleton is discussed. An extended discussion of the principal chemical reactivity is included since this governs interactions with biological targets. Quaternary protoberberine alkaloids and some related compounds exhibit considerable biological activities. Recently reported structural studies indicate that the QPA interact with nucleic acids predominantly as intercalators or minor groove binders. Currently, investigations in many laboratories worldwide are focused on the antibacterial and antimalarial activity, cytotoxicity, and potential genotoxicity of QPA.
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Affiliation(s)
- Lenka Grycová
- National Center for Biomolecular Research, Faculty of Science, Masaryk University, Kamenice 5/A4, CZ-625 00 Brno, Czech Republic
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Protoberberine Alkaloids: Physicochemical and Nucleic Acid Binding Properties. TOPICS IN HETEROCYCLIC CHEMISTRY 2007. [DOI: 10.1007/7081_2007_071] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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