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Hu M, Liu H, Zhang Y, Lu D, Zheng L, Wang Y, Chen S, Liu T. Preparation and evaluation of the PD0721‑DOX antibody‑drug conjugate targeting EGFRvIII to inhibit glioblastoma. Exp Ther Med 2024; 27:254. [PMID: 38682116 PMCID: PMC11046186 DOI: 10.3892/etm.2024.12542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Accepted: 03/06/2024] [Indexed: 05/01/2024] Open
Abstract
Epidermal growth factor receptor variant III (EGFRvIII) is prominently expressed in various epithelial tumors. PD0721, a single-chain antibody (scFv), has been developed to specifically target EGFRvIII. Although doxorubicin (DOX) is an essential treatment approach for glioblastoma (GBM), its toxic effects and limited targeting capabilities are a challenge. To overcome the above limitations, antibody-drug conjugates (ADCs) have been developed to exploit the specificity of monoclonal antibodies in directing potent cytotoxic drugs to tumor cells expressing the target antigens. The present study aimed to conjugate DOX with PD0721 scFv to construct a PD0721-DOX ADC targeting EGFRvIII and examine its targeting effect and in vitro anti-GBM activity. PD0721-DOX ADC was generated by combining PD0721 scFv with DOX, using dextran T-10 as a linker. The drug-to-antibody ratio (DAR) was measured by ultraviolet and visible spectrophotometry (UV-Vis). A series of techniques, including cytotoxicity assays, immunofluorescence, cell internalization and flow cytometry assays were employed to evaluate the targeting efficacy and anti-GBM activity of the PD0721-DOX ADC. Following the conjugation of PD0721 scFv with DOX, the UV-Vis results showed a noticeable red shift in the maximum absorbance. The DAR of PD0721 scFv and DOX was 9.23:1. Cytotoxicity assays demonstrated that DK-MG cells treatment with PD0721-DOX ADC at 10 and 20 µg/ml significantly increased cytotoxicity compared with U-87MG ATCC cells (all P<0.01). Confocal microscopy revealed distinct green and red fluorescence in EGFRvIII-expressing DK-MG cells, while no fluorescence was observed in EGFRvIII negative U-87MG ATCC cells. Furthermore, compared with U-87MG ATCC cells, DK-MG cells showed effective internalization of the PD0721-DOX ADC (P<0.001). Finally, flow cytometric analyses indicated that the PD0721-DOX ADC significantly promoted the apoptosis of DK-MG cells compared with U-87MG ATCC cells (P<0.01). In summary, the current study suggested that the PD0721-DOX ADC could exhibit a notable targeting efficacy and potent anti-GBM activity.
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Affiliation(s)
- Minmin Hu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
- School of Pharmacy, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Hong Liu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
- School of Pharmacy, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Yubing Zhang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Dingyan Lu
- Engineering Research Center for The Development and Application of Ethnic Medicine and TCM (Ministry of Education)/National Engineering Research Center of Miao's Medicines, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Lin Zheng
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Yonglin Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Shuaishuai Chen
- Engineering Research Center for The Development and Application of Ethnic Medicine and TCM (Ministry of Education)/National Engineering Research Center of Miao's Medicines, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Ting Liu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
- School of Pharmacy, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
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Neelakantan M, Latha V, Thalamuthu S. Polyaromatic ring containing β-diketone derivatives with antiproliferative activity toward human breast cancer cell lines: Synthesis, structure, DNA binding and molecular docking. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131573] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Zhu M, Hu X, Zhang Y, Pan J, Zhang G. Revealing the groove binding characteristics of plant growth regulator 3-indoleacetic acid with calf thymus DNA. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.115265] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Ender Biçer, Billy TA, Macit M. Voltammetric and Docking Investigation of the Binding Interaction between (E)-1-[(2-Phenoxyphenylimino)methyl]naphthalen-2-ol and Calf Thymus DNA. RUSS J ELECTROCHEM+ 2021. [DOI: 10.1134/s1023193520120046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Prabhu Kumar K, Vasantha Kumar B, Kumar PR, Butcher RJ, Vivek H, Suchetan P, Revanasiddappa H, Foro S. Synthesis, characterization, CT‐DNA binding and docking studies of novel selenated ligands and their palladium complexes. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5634] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- K.M. Prabhu Kumar
- Department of Studies and Research in ChemistryTumkur University Tumkur Karnataka 572 103 India
| | - B.C. Vasantha Kumar
- Department of Studies in ChemistryUniversity of Mysore Mysuru Karnataka 570 006 India
| | - P. Raghavendra Kumar
- Department of Studies and Research in ChemistryTumkur University Tumkur Karnataka 572 103 India
| | | | - H.K. Vivek
- Faculty of Natural SciencesAdichunchanagiri University B. G. Ngara Mandya Karnataka India
| | - P.A. Suchetan
- Department of Studies and Research in ChemistryTumkur University Tumkur Karnataka 572 103 India
| | - H.D. Revanasiddappa
- Department of Studies in ChemistryUniversity of Mysore Mysuru Karnataka 570 006 India
| | - Sabine Foro
- Institute of Materials ScienceDarmstadt University of Technology Petersenstr. 23 D‐64287 Darmstadt Germany
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Singhal S, Khanna P, Khanna L. Synthesis, DFT studies, molecular docking, antimicrobial screening and UV fluorescence studies on ct-DNA for novel Schiff bases of 2-(1-aminobenzyl) benzimidazole. Heliyon 2019; 5:e02596. [PMID: 31667415 PMCID: PMC6812229 DOI: 10.1016/j.heliyon.2019.e02596] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 06/27/2019] [Accepted: 10/01/2019] [Indexed: 01/26/2023] Open
Abstract
Novel Schiff bases (SBs) were synthesized by condensation of 2-(1-Amino benzyl) benzimidazole with heterocyclic and aromatic carbonyl compounds. The structural characterization was done using 1H, 13C NMR, FTIR and ES-MS spectroscopic techniques. The in silico pharmacokinetics showed that nearly all compounds obeyed Lipinski rule of 5 with low toxicity and metabolic stability. The global reactivity descriptors were calculated using DFT approach. The molecular docking result of SBs with ct-DNA suggested interaction via groove binding mode. The antibacterial activity was tested against S. aureus and E. coli, indicated significant inhibition than reference drug. The compound 4d gave best results at 50 μg ml-1 concentrations. UV/Vis and Fluorescence spectroscopy tools were used to evaluate ct-DNA binding ability of compounds 4a-e through hypochromic shift. The steady state fluorescence predicted a moderate binding constant of 1.12 × 104 for 4d, indicative of non-intercalative mode.
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Affiliation(s)
- Sugandha Singhal
- University School of Basic and Applied Sciences, Guru Gobind Singh Indraprastha University, Sector 16-C, Dwarka, New Delhi, 110078, India
| | - Pankaj Khanna
- Department of Chemistry, Acharya Narendra Dev College, University of Delhi, Kalkaji, New Delhi, 110019, India
| | - Leena Khanna
- University School of Basic and Applied Sciences, Guru Gobind Singh Indraprastha University, Sector 16-C, Dwarka, New Delhi, 110078, India
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Kumar H, Devaraji V, Prasath R, Jadhao M, Joshi R, Bhavana P, Ghosh SK. Groove binding mediated structural modulation and DNA cleavage by quinoline appended chalcone derivative. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 151:605-615. [PMID: 26163783 DOI: 10.1016/j.saa.2015.07.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Revised: 06/30/2015] [Accepted: 07/01/2015] [Indexed: 06/04/2023]
Abstract
The present study embodies the detail DNA binding interaction of a potential bioactive quinoline appended chalcone derivative (E)-3-(anthracen-10-yl)-1-(6,8-dibromo-2-methylquinolin-3-yl)prop-2-en-1-one (ADMQ) with calf thymus DNA (ctDNA) and its consequences by UV-Vis absorption, steady state fluorescence spectroscopy, fluorescence anisotropy, circular dichromism, helix melting, agarose gel electrophoresis, molecular docking, Induced Fit Docking (IFD) and molecular dynamics (MD) simulation. The UV-Vis absorption and fluorescence study reveal that the molecule undergoes considerable interaction with the nucleic acid. The control KI quenching experiment shows the lesser accessibility of ADMQ molecule to the ionic quencher (I(-)) in presence of ctDNA as compared to the bulk aqueous phase. Insignificant change in helix melting temperature as well as in circular dichromism (CD) spectra points toward non-covalent groove binding interaction. The moderate rotational confinement of this chalcone derivative (anisotropy=0.106) trapped in the nucleic acid environment, the comparative displacement assay with well-known minor groove binder Hoechst 33258 and intercalator Ethidium Bromide establishes the minor groove binding interactions of the probe molecule. Molecular docking, IFD and MD simulation reveal that the DNA undergoes prominent morphological changes in terms of helix unwinding and bending to accommodate ADMQ in a crescent shape at an angle of 110° in a sequence specific manner. During interaction, ADMQ rigidifies and bends the sugar phosphate backbone of the nucleic acid and thereby shortens its overall length by 3.02Å. Agarose gel electrophoresis experiment with plasmid pBR 322 reveals that the groove binded ADMQ result in a concentration dependent cleavage of plasmid DNA into its supercoiled and nicked circular form. The consolidated spectroscopic research described herein provides quantitative insight into the interaction of a heterocyclic chalcone derivative with relevant target nucleic acid, which may be useful for the future research on chalcone based therapeutic agents.
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Affiliation(s)
- Himank Kumar
- Department of Chemistry, Visvesvaraya National Institute of Technology, Nagpur, Maharashtra 440010, India
| | - Vinod Devaraji
- Department of Pharmaceutical Chemistry, College of Pharmacy, Madras Medical College, Chennai 600003, India
| | - Rangaraj Prasath
- Department of Chemistry, BITS-Pilani, K.K. Birla Goa Campus, Zuarinagar, Goa 403726, India
| | - Manojkumar Jadhao
- Department of Chemistry, Visvesvaraya National Institute of Technology, Nagpur, Maharashtra 440010, India
| | - Ritika Joshi
- Department of Chemistry, Visvesvaraya National Institute of Technology, Nagpur, Maharashtra 440010, India
| | - Purushothaman Bhavana
- Department of Chemistry, BITS-Pilani, K.K. Birla Goa Campus, Zuarinagar, Goa 403726, India
| | - Sujit Kumar Ghosh
- Department of Chemistry, Visvesvaraya National Institute of Technology, Nagpur, Maharashtra 440010, India.
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Hegde M, Sharath Kumar KS, Thomas E, Ananda H, Raghavan SC, Rangappa KS. A novel benzimidazole derivative binds to the DNA minor groove and induces apoptosis in leukemic cells. RSC Adv 2015. [DOI: 10.1039/c5ra16605e] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
In the present study, we have synthesized various benzimidazole derivatives, evaluated their potential to act as DNA minor groove binder and tested their chemotherapeutic efficacy.
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Affiliation(s)
- Mahesh Hegde
- Department of Studies in Chemistry
- Manasagangotri, University of Mysore
- Mysuru-570006, India
| | | | - Elizabeth Thomas
- Department of Biochemistry
- Indian Institute of Science
- Bangalore-560012, India
| | - Hanumappa Ananda
- Department of Studies in Chemistry
- Manasagangotri, University of Mysore
- Mysuru-570006, India
| | - Sathees C. Raghavan
- Department of Biochemistry
- Indian Institute of Science
- Bangalore-560012, India
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