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Yuan W, Zhang R, Lyu H, Xiao S, Guo D, Zhang Q, Ali DW, Michalak M, Chen XZ, Zhou C, Tang J. Dysregulation of tRNA methylation in cancer: Mechanisms and targeting therapeutic strategies. Cell Death Discov 2024; 10:327. [PMID: 39019857 PMCID: PMC11254935 DOI: 10.1038/s41420-024-02097-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 07/04/2024] [Accepted: 07/09/2024] [Indexed: 07/19/2024] Open
Abstract
tRNA is the RNA type that undergoes the most modifications among known RNA, and in recent years, tRNA methylation has emerged as a crucial process in regulating gene translation. Dysregulation of tRNA abundance occurs in cancer cells, along with increased expression and activity of tRNA methyltransferases to raise the level of tRNA modification and stability. This leads to hijacking of translation and synthesis of multiple proteins associated with tumor proliferation, metastasis, invasion, autophagy, chemotherapy resistance, and metabolic reprogramming. In this review, we provide an overview of current research on tRNA methylation in cancer to clarify its involvement in human malignancies and establish a theoretical framework for future therapeutic interventions targeting tRNA methylation processes.
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Affiliation(s)
- Wenbin Yuan
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Hubei Key Laboratory of Industrial Microbiology, School of Life and Health Sciences, Hubei University of Technology, Wuhan, China
| | - Rui Zhang
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Hubei Key Laboratory of Industrial Microbiology, School of Life and Health Sciences, Hubei University of Technology, Wuhan, China
| | - Hao Lyu
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Hubei Key Laboratory of Industrial Microbiology, School of Life and Health Sciences, Hubei University of Technology, Wuhan, China
| | - Shuai Xiao
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Hubei Key Laboratory of Industrial Microbiology, School of Life and Health Sciences, Hubei University of Technology, Wuhan, China
| | - Dong Guo
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Hubei Key Laboratory of Industrial Microbiology, School of Life and Health Sciences, Hubei University of Technology, Wuhan, China
| | - Qi Zhang
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Hubei Key Laboratory of Industrial Microbiology, School of Life and Health Sciences, Hubei University of Technology, Wuhan, China
| | - Declan William Ali
- Department of Biological Sciences, University of Alberta, Edmonton, AB, Canada
| | - Marek Michalak
- Department of Biochemistry, University of Alberta, Edmonton, AB, Canada
| | - Xing-Zhen Chen
- Membrane Protein Disease Research Group, Department of Physiology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Cefan Zhou
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Hubei Key Laboratory of Industrial Microbiology, School of Life and Health Sciences, Hubei University of Technology, Wuhan, China.
| | - Jingfeng Tang
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Hubei Key Laboratory of Industrial Microbiology, School of Life and Health Sciences, Hubei University of Technology, Wuhan, China.
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Mala P, Saraogi I. Enhanced Codon-Anticodon Interaction at In-Frame UAG Stop Codon Improves the Efficiency of Non-Natural Amino Acid Mutagenesis. ACS Chem Biol 2022; 17:1051-1060. [PMID: 35532803 DOI: 10.1021/acschembio.1c00782] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The introduction of non-natural amino acids into proteins through the stop codon readthrough methodology has been used to design proteins for diverse applications. However, this method suffers from low yields of the modified protein, as the suppressor tRNA that recognizes the stop codon is unable to compete effectively with release factor 1 (RF1), which terminates translation. We reasoned that a suppressor tRNA with improved interaction with the UAG stop codon on the mRNA will be able to compete more effectively with RF1. To test this idea, we inserted two 2,6-diaminopurine (D) units in the tRNA anticodon stem loop, including one at the third position of the tRNA anticodon. The modified suppressor tRNA could potentially form additional H-bonds between the N2-exocyclic amine of D and the C2 carbonyl group of uracil, thereby enhancing mRNA-tRNA interaction and/or altering tRNA conformation. The stronger interaction at the codon-anticodon interface resulted in improved UAG decoding efficiency and a higher yield of the modified protein containing a non-natural amino acid at multiple sites. Our findings are consistent with the importance of hydrogen bonding and tRNA conformation at the tRNA-mRNA duplex interface during in-frame UAG suppression, which improves protein translation at multiple UAG stop sites. This work provides valuable inputs toward improved non-natural amino acid mutagenesis for creating designer proteins.
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Affiliation(s)
- Purnima Mala
- Department of Biological Sciences, Indian Institute of Science Education and Research Bhopal, Bhopal 462066, India
| | - Ishu Saraogi
- Department of Biological Sciences, Indian Institute of Science Education and Research Bhopal, Bhopal 462066, India
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal 462066, India
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Packeiser EM, Taher L, Kong W, Ernst M, Beck J, Hewicker-Trautwein M, Brenig B, Schütz E, Murua Escobar H, Nolte I. RNA-seq of nine canine prostate cancer cell lines reveals diverse therapeutic target signatures. Cancer Cell Int 2022; 22:54. [PMID: 35109825 PMCID: PMC8812184 DOI: 10.1186/s12935-021-02422-9] [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: 05/01/2021] [Accepted: 12/21/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Canine prostate adenocarcinoma (PAC) and transitional cell carcinoma (TCC) are typically characterized by metastasis and chemoresistance. Cell lines are important model systems for developing new therapeutic strategies. However, as they adapt to culturing conditions and undergo clonal selection, they can diverge from the tissue from which they were originally derived. Therefore, a comprehensive characterization of cell lines and their original tissues is paramount. METHODS This study compared the transcriptomes of nine canine cell lines derived from PAC, PAC metastasis and TCC to their respective original primary tumor or metastasis tissues. Special interests were laid on cell culture-related differences, epithelial to mesenchymal transition (EMT), the prostate and bladder cancer pathways, therapeutic targets in the PI3K-AKT signaling pathway and genes correlated with chemoresistance towards doxorubicin and carboplatin. RESULTS Independent analyses for PAC, PAC metastasis and TCC revealed 1743, 3941 and 463 genes, respectively, differentially expressed in the cell lines relative to their original tissues (DEGs). While genes associated with tumor microenvironment were mostly downregulated in the cell lines, patient-specific EMT features were conserved. Furthermore, examination of the prostate and bladder cancer pathways revealed extensive concordance between cell lines and tissues. Interestingly, all cell lines preserved downstream PI3K-AKT signaling, but each featured a unique therapeutic target signature. Additionally, resistance towards doxorubicin was associated with G2/M cell cycle transition and cell membrane biosynthesis, while carboplatin resistance correlated with histone, m- and tRNA processing. CONCLUSION Comparative whole-transcriptome profiling of cell lines and their original tissues identifies models with conserved therapeutic target expression. Moreover, it is useful for selecting suitable negative controls, i.e., cell lines lacking therapeutic target expression, increasing the transfer efficiency from in vitro to primary neoplasias for new therapeutic protocols. In summary, the dataset presented here constitutes a rich resource for canine prostate and bladder cancer research.
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Affiliation(s)
- Eva-Maria Packeiser
- Small Animal Clinic, University of Veterinary Medicine Hannover, Hannover, Germany
- Department of Medicine, Clinic III, Hematology, Oncology and Palliative Medicine, University Medical Center Rostock, Rostock, Germany
| | - Leila Taher
- Institute of Biomedical Informatics, Graz University of Technology, Graz, Austria
- Division of Bioinformatics, Department of Biology, Friedrich-Alexander Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
- Institute for Biostatistics and Informatics in Medicine and Ageing Research, Rostock University Medical Center, 18057, Rostock, Germany
| | - Weibo Kong
- Small Animal Clinic, University of Veterinary Medicine Hannover, Hannover, Germany
- Department of Medicine, Clinic III, Hematology, Oncology and Palliative Medicine, University Medical Center Rostock, Rostock, Germany
- Institute of Muscle Biology and Growth, Research Institute for Farm Animal Biology (FBN), 18196, Dummerstorf, Germany
| | - Mathias Ernst
- Division of Bioinformatics, Department of Biology, Friedrich-Alexander Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | | | | | - Bertram Brenig
- University of Göttingen, Institute of Veterinary Medicine, Göttingen, Germany
| | | | - Hugo Murua Escobar
- Small Animal Clinic, University of Veterinary Medicine Hannover, Hannover, Germany.
- Department of Medicine, Clinic III, Hematology, Oncology and Palliative Medicine, University Medical Center Rostock, Rostock, Germany.
- Comprehensive Cancer Center Mecklenburg-Vorpommern (CCC-MV), Campus Rostock, University of Rostock, 18057, Rostock, Germany.
| | - Ingo Nolte
- Small Animal Clinic, University of Veterinary Medicine Hannover, Hannover, Germany.
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Parveen S, Jafri S, Yasir Khan H, Tabassum S, Arjmand F. Elucidating the interaction of enantiomeric Cu(II) complexes with DNA, RNA and HSA: A comparative study. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115501] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Jahmidi-Azizi N, Gault S, Cockell CS, Oliva R, Winter R. Ions in the Deep Subsurface of Earth, Mars, and Icy Moons: Their Effects in Combination with Temperature and Pressure on tRNA-Ligand Binding. Int J Mol Sci 2021; 22:ijms221910861. [PMID: 34639202 PMCID: PMC8509373 DOI: 10.3390/ijms221910861] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/03/2021] [Accepted: 10/06/2021] [Indexed: 01/12/2023] Open
Abstract
The interactions of ligands with nucleic acids are central to numerous reactions in the biological cell. How such reactions are affected by harsh environmental conditions such as low temperatures, high pressures, and high concentrations of destructive ions is still largely unknown. To elucidate the ions’ role in shaping habitability in extraterrestrial environments and the deep subsurface of Earth with respect to fundamental biochemical processes, we investigated the effect of selected salts (MgCl2, MgSO4, and Mg(ClO4)2) and high hydrostatic pressure (relevant for the subsurface of that planet) on the complex formation between tRNA and the ligand ThT. The results show that Mg2+ salts reduce the binding tendency of ThT to tRNA. This effect is largely due to the interaction of ThT with the salt anions, which leads to a strong decrease in the activity of the ligand. However, at mM concentrations, binding is still favored. The ions alter the thermodynamics of binding, rendering complex formation that is more entropy driven. Remarkably, the pressure favors ligand binding regardless of the type of salt. Although the binding constant is reduced, the harsh conditions in the subsurface of Earth, Mars, and icy moons do not necessarily preclude nucleic acid–ligand interactions of the type studied here.
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Affiliation(s)
- Nisrine Jahmidi-Azizi
- Physical Chemistry I-Biophysical Chemistry, Department of Chemistry and Chemical Biology, TU Dortmund University, 44227 Dortmund, Germany;
| | - Stewart Gault
- UK Centre for Astrobiology, SUPA School of Physics and Astronomy, University of Edinburgh, James Clerk Maxwell Building, Edinburgh EH9 3FD, UK; (S.G.); (C.S.C.)
| | - Charles S. Cockell
- UK Centre for Astrobiology, SUPA School of Physics and Astronomy, University of Edinburgh, James Clerk Maxwell Building, Edinburgh EH9 3FD, UK; (S.G.); (C.S.C.)
| | - Rosario Oliva
- Physical Chemistry I-Biophysical Chemistry, Department of Chemistry and Chemical Biology, TU Dortmund University, 44227 Dortmund, Germany;
- Correspondence: (R.O.); (R.W.)
| | - Roland Winter
- Physical Chemistry I-Biophysical Chemistry, Department of Chemistry and Chemical Biology, TU Dortmund University, 44227 Dortmund, Germany;
- Correspondence: (R.O.); (R.W.)
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Ternary Copper Complex of L-Glutamine and Phenanthroline as Counterions of Cyclo-Tetravanadate Anion: Experimental–Theoretical Characterization and Potential Antineoplastic Activity. METALS 2021. [DOI: 10.3390/met11101541] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Over the last decade, therapeutic metallodrugs have become substantially effective in the treatment of cancer. Thus, developing new effective anticancer drugs is a significant research area against the continuing increase in cancers worldwide. In the search for heterobimetallic prodrugs containing V/Cu, a new cyclo-tetravanadate was synthesized and characterized by UV-visible and FTIR spectroscopies and single-crystal X-ray diffraction. L-Glutamine and 1,10-phenanthroline allow the crystallization of [Cu(L-Gln)(phen)(H2O)]4[V4O12]∙8(H2O) (1), in which the cyclo-tetravanadate acts as a free anion. Density functional theory (DFT) calculations were carried out to characterize the frontier molecular orbitals and molecular electrostatic potential. Global reactivity indexes were calculated and analyzed to give insight into the cyclo-tetravanadate anion and complex counterions interactions. Also, using Bader’s theory of atoms in molecules (AIM), non-covalent interactions were analyzed. Docking analysis with the Casiopeina-like complex resulting from the hydrolysis of compound 1 provided insights into these complex potential anticancer activities by interacting with DNA/tRNA via H-bonds and hydrophobic interactions. The release of both components could act together or separately, acting as prodrugs with potential dual antineoplastic activities.
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Abstract
Gene expression signatures (GES) connect phenotypes to differential messenger RNA (mRNA) expression of genes, providing a powerful approach to define cellular identity, function, and the effects of perturbations. The use of GES has suffered from vague assessment criteria and limited reproducibility. Because the structure of proteins defines the functional capability of genes, we hypothesized that enrichment of structural features could be a generalizable representation of gene sets. We derive structural gene expression signatures (sGES) using features from multiple levels of protein structure (e.g., domain and fold) encoded by the mRNAs in GES. Comprehensive analyses of data from the Genotype-Tissue Expression Project (GTEx), the all RNA-seq and ChIP-seq sample and signature search (ARCHS4) database, and mRNA expression of drug effects on cardiomyocytes show that sGES are useful for characterizing biological phenomena. sGES enable phenotypic characterization across experimental platforms, facilitates interoperability of expression datasets, and describe drug action on cells.
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Corona-Motolinia ND, Martínez-Valencia B, Noriega L, Sánchez-Gaytán BL, Méndez-Rojas MÁ, Melendez FJ, Castro ME, González-Vergara E. Synthesis, Crystal Structure, and Computational Methods of Vanadium and Copper Compounds as Potential Drugs for Cancer Treatment. Molecules 2020; 25:E4679. [PMID: 33066356 PMCID: PMC7587343 DOI: 10.3390/molecules25204679] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 09/23/2020] [Accepted: 10/02/2020] [Indexed: 12/24/2022] Open
Abstract
Transition metal-based compounds have shown promising uses as therapeutic agents. Among their unique characteristics, these compounds are suitable for interaction with specific biological targets, making them important potential drugs to treat various diseases. Copper compounds, of which Casiopeinas® are an excellent example, have shown promising results as alternatives to current cancer therapies, in part because of their intercalative properties with DNA. Vanadium compounds have been extensively studied for their pharmacological properties and application, mostly in diabetes, although recently, there is a growing interest in testing their activity as anti-cancer agents. In the present work, two compounds, [Cu(Metf)(bipy)Cl]Cl·2H2O and [Cu(Impy)(Gly)(H2O)]VO3, were obtained and characterized by visible and FTIR spectroscopies, single-crystal X-ray diffraction, and theoretical methods. The structural and electronic properties of the compounds were calculated through the density functional theory (DFT) using the Austin-Frisch-Petersson functional with dispersion APFD, and the 6-311 + G(2d,p) basis set. Non-covalent interactions were analyzed using Hirshfeld surface analysis (HSA) and atom in molecules analysis (AIM). Additionally, docking analysis to test DNA/RNA interactions with the Casiopeina-like complexes were carried out. The compounds provide metals that can interact with critical biological targets. In addition, they show interesting non-covalent interactions that are responsible for their supramolecular arrangements.
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Affiliation(s)
- Nidia D. Corona-Motolinia
- Centro de Química del Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, 18 sur y Av. San Claudio, Col. San Manuel, Puebla C. P. 72570, Mexico; (N.D.C.-M.); (B.M.-V.); (B.L.S.-G.)
| | - Beatriz Martínez-Valencia
- Centro de Química del Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, 18 sur y Av. San Claudio, Col. San Manuel, Puebla C. P. 72570, Mexico; (N.D.C.-M.); (B.M.-V.); (B.L.S.-G.)
| | - Lisset Noriega
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, 18 sur y Av. San Claudio, Col. San Manuel, Puebla C. P. 72570, Mexico; (L.N.); (F.J.M.)
| | - Brenda L. Sánchez-Gaytán
- Centro de Química del Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, 18 sur y Av. San Claudio, Col. San Manuel, Puebla C. P. 72570, Mexico; (N.D.C.-M.); (B.M.-V.); (B.L.S.-G.)
| | - Miguel Ángel Méndez-Rojas
- Departamento de Ciencias Químico Biológicas, Universidad de las Américas. Puebla, Sta. Catarina Mártir, Cholula Puebla C.P. 72820, Mexico;
| | - Francisco J. Melendez
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, 18 sur y Av. San Claudio, Col. San Manuel, Puebla C. P. 72570, Mexico; (L.N.); (F.J.M.)
| | - María Eugenia Castro
- Centro de Química del Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, 18 sur y Av. San Claudio, Col. San Manuel, Puebla C. P. 72570, Mexico; (N.D.C.-M.); (B.M.-V.); (B.L.S.-G.)
| | - Enrique González-Vergara
- Centro de Química del Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, 18 sur y Av. San Claudio, Col. San Manuel, Puebla C. P. 72570, Mexico; (N.D.C.-M.); (B.M.-V.); (B.L.S.-G.)
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Parveen S, Fatima K, Zehra S, Arjmand F. RNA-targeted Cu(II)-based potential antitumor drug entity: comprehensive structural, biological {DNA/RNA binding, cleavage, cytotoxicity} and computational studies. J Biomol Struct Dyn 2020; 39:6070-6083. [DOI: 10.1080/07391102.2020.1797535] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Sabiha Parveen
- Department of Chemistry, Aligarh Muslim University, Aligarh, India
| | - Kaneez Fatima
- Department of Chemistry, Aligarh Muslim University, Aligarh, India
| | - Siffeen Zehra
- Department of Chemistry, Aligarh Muslim University, Aligarh, India
| | - Farukh Arjmand
- Department of Chemistry, Aligarh Muslim University, Aligarh, India
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Parveen S, Arjmand F, Zhang Q, Ahmad M, Khan A, Toupet L. Molecular docking, DFT and antimicrobial studies of Cu(II) complex as topoisomerase I inhibitor. J Biomol Struct Dyn 2020; 39:2092-2105. [PMID: 32174234 DOI: 10.1080/07391102.2020.1743365] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Herein, we report the synthesis and single crystal X-ray structure of Cu(II)-picolinic acid complex, 1 as a potent topoisomerase I inhibitor. The complex 1 crystallized in the triclinic crystal system with space group P-1. Comparative in vitro binding studies of complex 1 with CT DNA and tRNA were carried out revealing an electrostatic binding mode with higher binding propensity towards tRNA. The intrinsic bonding constant value, Kb was calculated to be 4.36 × 104 and 8.78 × 104 M-1 with CT DNA and tRNA respectively. DNA cleavage activity was carried out with a pBR322 plasmid DNA substrate to ascertain the cleaving ability. Furthermore, Topo-I inhibition assay of complex 1, performed via gel electrophoresis revealed a significant inhibitory effect on the enzyme catalytic activity at a minimum concentration of 15 µM. The DFT studies were carried out to provide better insight in the electronic transitions observed in the absorption spectrum of the complex 1. Molecular docking studies were carried out with DNA, RNA and Topo-I to determine the specific binding preferences at the target site and complement the spectroscopic studies. The antimicrobial potential of complex 1 was screened against E. coli, S. aureus, P. aeruginosa, B. subtilis and C. albicans; and compared with doxycycline, exhibiting an excellent maximum zone of inhibition of 28 mm against E. coli.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Shazia Parveen
- Chemistry Department, Faculty of Science, Taibah University, Yanbu, Saudi Arabia.,Department of Chemistry, Aligarh Muslim University, Aligarh, India
| | - Farukh Arjmand
- Department of Chemistry, Aligarh Muslim University, Aligarh, India
| | - Qianfan Zhang
- Chemistry Department, Brown University, Providence, RI, USA
| | - Musheer Ahmad
- Department of Applied Chemistry, Aligarh Muslim University, Aligarh, India
| | - Arif Khan
- Department of Chemistry, SCLS, Jamia Hamdard, Delhi, India
| | - Loic Toupet
- Institut de Physique de Rennes, UMR 625, Université de Rennes 1, Rennes Cedex, France
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Khan HY, Tabassum S, Arjmand F. Evaluation of cytotoxic potential of structurally well-characterized RNA targeted ionic non-steroidal anti-inflammatory (NSAID) Cu(ii) & Zn(ii) DACH–mefenamato drug conjugates against human cancer cell lines. RSC Adv 2020; 10:166-178. [PMID: 35492558 PMCID: PMC9048248 DOI: 10.1039/c9ra07464c] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 12/12/2019] [Indexed: 11/21/2022] Open
Abstract
New RNA targeted ionic [Cu(DACH)2(H2O)2](mef)2, 1 and [Zn(DACH)2(H2O)2](mef)2, 2 drug conjugates were synthesized and characterized by spectroscopic techniques FT-IR, UV-vis, EPR in case of 1 and 1H and 13C NMR in case of 2, ESI-MS, thermogravimetric analysis and single-crystal X-ray structure determination in case of 1. The interaction studies of 1 & 2 with most likely drug targets like ctDNA and tRNA were performed which demonstrated that the complexes 1 and 2 exhibited strong preferential binding to tRNA as compared to ctDNA, Kb = 2.52(±0.04) × 105 M−1, 7.85(±0.02) × 104 M−1, respectively. Scanning electron microscopy analyses of complex-ctDNA/tRNA condensates suggested the interaction of complexes with ctDNA/tRNA had occurred, followed by lengthening of DNA double helix and bulge region of tRNA. Cytotoxic activity of 1 and 2 against human cancer cell lines namely; MCF-7 (breast), HeLa (cervical), MIA-PA-CA 2 (pancreatic), A-498 (kidney), Hep-G2 (hepatoma) was evaluated by SRB assay. The obtained results showed that copper complex 1 was an outstanding cytotoxic agent with remarkably good GI50 value (<10 μg ml−1) against the tested cancer cell lines except for MIA-PA-CA 2, while zinc complex 2 revealed moderate cytotoxicity against all the tested cancer cell lines. New RNA targeted ionic NSAID drug conjugates were evaluated for their antiproliferative activity against human cancer cell lines.![]()
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Affiliation(s)
| | - Sartaj Tabassum
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
| | - Farukh Arjmand
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
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Wang X, Rusin A, Walkey CJ, Lin JJ, Johnson DL. The RNA polymerase III repressor MAF1 is regulated by ubiquitin-dependent proteasome degradation and modulates cancer drug resistance and apoptosis. J Biol Chem 2019; 294:19255-19268. [PMID: 31645432 DOI: 10.1074/jbc.ra119.008849] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 10/01/2019] [Indexed: 01/03/2023] Open
Abstract
MAF1 homolog, negative regulator of RNA polymerase III (MAF1) is a key repressor of RNA polymerase (pol) III-dependent transcription and functions as a tumor suppressor. Its expression is frequently down-regulated in primary human hepatocellular carcinomas (HCCs). However, this reduction in MAF1 protein levels does not correlate with its transcript levels, indicating that MAF1 is regulated post-transcriptionally. Here, we demonstrate that MAF1 is a labile protein whose levels are regulated through the ubiquitin-dependent proteasome pathway. We found that MAF1 ubiquitination is enhanced upon mTOR complex 1 (TORC1)-mediated phosphorylation at Ser-75. Moreover, we observed that the E3 ubiquitin ligase cullin 2 (CUL2) critically regulates MAF1 ubiquitination and controls its stability and subsequent RNA pol III-dependent transcription. Analysis of the phenotypic consequences of modulating either CUL2 or MAF1 protein expression revealed changes in actin cytoskeleton reorganization and altered sensitivity to doxorubicin-induced apoptosis. Repression of RNA pol III-dependent transcription by chemical inhibition or knockdown of BRF1 RNA pol III transcription initiation factor subunit (BRF1) enhanced HCC cell sensitivity to doxorubicin, suggesting that MAF1 regulates doxorubicin resistance in HCC by controlling RNA pol III-dependent transcription. Together, our results identify the ubiquitin proteasome pathway and CUL2 as important regulators of MAF1 levels. They suggest that decreases in MAF1 protein underlie chemoresistance in HCC and perhaps other cancers and point to an important role for MAF1 and RNA pol III-mediated transcription in chemosensitivity and apoptosis.
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Affiliation(s)
- Xianlong Wang
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas 77030
| | - Aleksandra Rusin
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas 77030
| | - Christopher J Walkey
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas 77030
| | | | - Deborah L Johnson
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas 77030
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Charak S, Shandilya M, Mehrotra R. RNA targeting by an anthracycline drug: spectroscopic and in silico evaluation of epirubicin interaction with tRNA. J Biomol Struct Dyn 2019; 38:1761-1771. [PMID: 31084352 DOI: 10.1080/07391102.2019.1617786] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Anthracyclines are putative anticancer agents used to treat a wide range of cancers. Among these anthracyclines, epirubicin is derived from the doxorubicin by the subtle difference in the orientation of C4-hydroxyl group at sugar molecule. Epirubicin has great significance as it has propitious anticancer potential with lesser cardiotoxicity and faster elimination from the body. The present study is done to understand the molecular aspect of epirubicin binding to tRNA. We have used various spectroscopic techniques like Fourier transform infrared spectroscopy (FTIR), absorption spectroscopy and circular dichroism to illustrate the binding sites, the extent of binding and conformational changes associated with tRNA after interacting with epirubicin. From infrared studies, we infer that epirubicin interacts with guanine and uracil bases of tRNA. Results obtained from infrared and CD studies suggest that epirubicin complexation with tRNA does not result in any conformational change in tRNA structure. Binding constant (2.1 × 103 M-1) calculated from the absorbance data illustrates that epirubicin has a weak interaction with tRNA molecule. These spectroscopic results like the binding site of epirubicin and binding energy of epirubicin-tRNA complex were also verified by the molecular docking. Results of the present study provide information that aids in the development of efficient RNA targeted drugs from the existing drugs by certain chemical modification in their structure resulting in lesser side effects and better efficacy.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Sonika Charak
- Physico Mechanical Metrology Division, CSIR-National Physical Laboratory, New Delhi, India
| | - Manish Shandilya
- Amity School of Applied Sciences, Amity University Haryana, Gurgaon, India
| | - Ranjana Mehrotra
- Physico Mechanical Metrology Division, CSIR-National Physical Laboratory, New Delhi, India
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14
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Thong QX, Biabanikhankahdani R, Ho KL, Alitheen NB, Tan WS. Thermally-responsive Virus-like Particle for Targeted Delivery of Cancer Drug. Sci Rep 2019; 9:3945. [PMID: 30850643 PMCID: PMC6408444 DOI: 10.1038/s41598-019-40388-x] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 02/15/2019] [Indexed: 12/14/2022] Open
Abstract
Multifunctional nanocarriers displaying specific ligands and simultaneously response to stimuli offer great potentials for targeted and controlled drug delivery. Several synthetic thermally-responsive nanocarriers have been studied extensively for hyperthermia incorporated chemotherapy. However, no information is available on the application of virus-like particle (VLP) in thermally-controlled drug delivery systems. Here, we describe the development of a novel multifunctional nanovehicle based on the VLP of Macrobrachium rosenbergii nodavirus (MrNVLP). Folic acid (FA) was covalently conjugated to lysine residues located on the surface of MrNVLP, while doxorubicin (Dox) was loaded inside the VLP using an infusion method. This thermally-responsive nanovehicle, namely FA-MrNVLP-Dox, released Dox in a sustained manner and the rate of drug release increased in response to a hyperthermia temperature at 43 °C. The FA-MrNVLP-Dox enhanced the delivery of Dox to HT29 cancer cells expressing high level of folate receptor (FR) as compared to CCD841CoN normal cells and HepG2 cancer cells, which express low levels of FR. As a result, FA-MrNVLP-Dox increased the cytotoxicity of Dox on HT29 cells, and decreased the drug's cytotoxicity on CCD841CoN and HepG2 cells. This study demonstrated the potential of FA-MrNVLP-Dox as a thermally-responsive nanovehicle for targeted delivery of Dox to cancer cells rich in FR.
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Affiliation(s)
- Qiu Xian Thong
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
| | - Roya Biabanikhankahdani
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
- Department of Microbiology, College of Science, Agriculture and Modern Technologies, Shiraz Branch, Islamic Azad University, Shiraz, Iran
| | - Kok Lian Ho
- Department of Pathology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
| | - Noorjahan Banu Alitheen
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
- Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
| | - Wen Siang Tan
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia.
- Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia.
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15
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Yousuf I, Usman M, Ahmad M, Tabassum S, Arjmand F. Single X-ray crystal structure, DFT studies and topoisomerase I inhibition activity of a tailored ionic Ag( i) nalidixic acid–piperazinium drug entity specific for pancreatic cancer cells. NEW J CHEM 2018; 42:506-519. [DOI: 10.1039/c7nj03602g] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
DFT studies, Topo I inhibition assay and cytotoxic activity of novel ionic Ag(i) nalidixic acid–piperazinium molecular entity.
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Affiliation(s)
- Imtiyaz Yousuf
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
| | - Mohammad Usman
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
| | - Musheer Ahmad
- Department of Applied Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
| | - Sartaj Tabassum
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
| | - Farukh Arjmand
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
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16
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Arjmand F, Afsan Z, Roisnel T. Design, synthesis and characterization of novel chromone based-copper(ii) antitumor agents with N,N-donor ligands: comparative DNA/RNA binding profile and cytotoxicity. RSC Adv 2018; 8:37375-37390. [PMID: 35557803 PMCID: PMC9089433 DOI: 10.1039/c8ra06722h] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 10/23/2018] [Indexed: 01/05/2023] Open
Abstract
A series of new chromone based-Cu(ii) complexes 1–3 derived from bioactive pharmacophore, 3-formylchromone and N,N-donor ligands viz., 1,10-phenanthroline, 2,2′-bipyridine and 1R,2R-DACH were synthesized as potential antitumor agents and thoroughly characterized by UV-vis, FT-IR, EPR, ESI-MS and elemental analysis. Single X-crystal diffraction studies of complex 2 revealed triclinic P1̄ space group with square pyramidal geometry around the Cu(ii) center. Comparative in vitro binding studies with ct-DNA and tRNA were carried out using absorption and emission titration experiments which revealed intercalative mode of binding with higher binding propensity of complexes 1–3 towards tRNA as compared to ct-DNA. Additionally, complex 1 exhibited high binding affinity among all the three complexes due to the involvement of phen co-ligands via π-stacking interactions in between nucleic acid base pairs. Furthermore, Hirshfeld surface analysis was carried out for complex 2 to investigate various intra and intermolecular non-covalent interactions (H-bonding, C–H⋯π etc.) accountable for stabilization of crystal lattice. The cleavage activity of complex 1 was performed by gel electrophoretic assay with pBR322 DNA and tRNA which revealed efficient DNA/tRNA cleaving ability of complex, suggesting tRNA cleavage both concentration and time dependent. Furthermore, in vitro cytotoxic activity of complexes 1–3 on a selected panel of human cancer cell lines was performed which revealed that all three complexes exhibited remarkably good cytotoxic activity with GI50 value < 10 μg mL−1 (<20 μM). New chromone-based Cu(ii) tRNA targeted complexes 1–3 as potential anticancer agents have been synthesized and thoroughly characterized.![]()
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Affiliation(s)
- Farukh Arjmand
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
| | - Zeenat Afsan
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
| | - Thierry Roisnel
- Institut des Sciences Chimiques de Rennes
- UMR 6226, Université de Rennes 1
- 15335042 Rennes
- France
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17
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Jeong H, Lee SH, Hwang Y, Yoo H, Jung H, Kim SH, Mok H. Multivalent Aptamer-RNA Conjugates for Simple and Efficient Delivery of Doxorubicin/siRNA into Multidrug-Resistant Cells. Macromol Biosci 2016; 17. [PMID: 27863037 DOI: 10.1002/mabi.201600343] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Revised: 10/07/2016] [Indexed: 01/08/2023]
Abstract
Multivalent aptamer-siRNA conjugates containing multiple mucin-1 aptamers and BCL2-specific siRNA are synthesized, and doxorubicin, an anthracycline anticancer drug, is loaded into these conjugates through intercalation with nucleic acids. These doxorubicin-incorporated multivalent aptamer-siRNA conjugates are transfected to mucin-1 overexpressing MCF-7 breast cancer cells and their multidrug-resistant cell lines. Doxorubicin-incorporated multivalent aptamer-siRNA conjugates exert promising anticancer effects, such as activation of caspase-3/7 and decrease of cell viability, on multidrug-resistant cancer cells because of their high intracellular uptake efficiency. Thus, this delivery system is an efficient tool for combination oncotherapy with chemotherapeutics and nucleic acid drugs to overcome multidrug resistance.
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Affiliation(s)
- Hyosook Jeong
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, 143-701, Republic of Korea
| | - Soo Hyeon Lee
- Department of Chemistry and Applied Biosciences, Institute of Pharmaceutical Sciences, Swiss Federal Institute of Technology Zurich (ETHZ), 8093 Zurich, Switzerland
| | - Yeonju Hwang
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, 143-701, Republic of Korea
| | - Hyundong Yoo
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, 143-701, Republic of Korea
| | - Heesun Jung
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, 143-701, Republic of Korea
| | - Sun Hwa Kim
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Seoul, 136-791, Republic of Korea
| | - Hyejung Mok
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, 143-701, Republic of Korea
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18
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Ray B, Agarwal S, Kadian H, Gambhir K, Sharma P, Mehrotra R. Deciphering molecular aspects of interaction between anticancer drug mitoxantrone and tRNA. J Biomol Struct Dyn 2016; 35:2090-2102. [DOI: 10.1080/07391102.2016.1213185] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Bhumika Ray
- Academy of Scientific & Innovative Research (AcSIR), CSIR-National Physical Laboratory Campus, New Delhi 110012, India
- Quantum Phenomena and Applications, CSIR-National Physical Laboratory, Dr. K. S. Krishnan Marg, New Delhi 110012, India
| | - Shweta Agarwal
- Academy of Scientific & Innovative Research (AcSIR), CSIR-National Physical Laboratory Campus, New Delhi 110012, India
- Quantum Phenomena and Applications, CSIR-National Physical Laboratory, Dr. K. S. Krishnan Marg, New Delhi 110012, India
| | - Heena Kadian
- Quantum Phenomena and Applications, CSIR-National Physical Laboratory, Dr. K. S. Krishnan Marg, New Delhi 110012, India
| | - Kaweri Gambhir
- Academy of Scientific & Innovative Research (AcSIR), CSIR-National Physical Laboratory Campus, New Delhi 110012, India
- Quantum Phenomena and Applications, CSIR-National Physical Laboratory, Dr. K. S. Krishnan Marg, New Delhi 110012, India
| | - Parag Sharma
- Academy of Scientific & Innovative Research (AcSIR), CSIR-National Physical Laboratory Campus, New Delhi 110012, India
- Quantum Phenomena and Applications, CSIR-National Physical Laboratory, Dr. K. S. Krishnan Marg, New Delhi 110012, India
| | - Ranjana Mehrotra
- Academy of Scientific & Innovative Research (AcSIR), CSIR-National Physical Laboratory Campus, New Delhi 110012, India
- Quantum Phenomena and Applications, CSIR-National Physical Laboratory, Dr. K. S. Krishnan Marg, New Delhi 110012, India
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19
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Soininen SK, Vellonen KS, Heikkinen AT, Auriola S, Ranta VP, Urtti A, Ruponen M. Intracellular PK/PD Relationships of Free and Liposomal Doxorubicin: Quantitative Analyses and PK/PD Modeling. Mol Pharm 2016; 13:1358-65. [PMID: 26950248 DOI: 10.1021/acs.molpharmaceut.6b00008] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Nanomedicines are widely studied for intracellular delivery of cancer drugs. However, the relationship between intracellular drug concentrations and drug responses are poorly understood. In this study, cellular and nuclear concentrations of doxorubicin were quantified with LC/MS after cell exposure with free and liposomal doxorubicin (pH-sensitive and pegylated liposomes). Cellular uptake of pegylated liposomes was low (∼3-fold extracellular concentrations) compared with doxorubicin in free form and pH-sensitive liposomes (up to 280-fold extracellular concentrations) in rat glioma (BT4C) and renal clear cell carcinoma (Caki-2) cells. However, after the cell exposure with pegylated liposomes, intracellular doxorubicin was distributed into the nuclear compartment in both cell types. Despite high drug concentrations in the nuclei, Caki-2 cells showed strong resistance toward doxorubicin. A model was successfully built to describe PK/PD relationship between drug concentrations in nucleus and cytotoxic responses in BT4C cells. This model is the first step to link target site concentration of doxorubicin into its effect and can be a useful part of more comprehensive future in vivo PK/PD models.
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Affiliation(s)
- Suvi K Soininen
- School of Pharmacy, Faculty of Health Sciences, University of Eastern Finland , Kuopio campus, P.O. Box 1627, FI-70211, Kuopio, Finland
| | - Kati-Sisko Vellonen
- School of Pharmacy, Faculty of Health Sciences, University of Eastern Finland , Kuopio campus, P.O. Box 1627, FI-70211, Kuopio, Finland
| | - Aki T Heikkinen
- School of Pharmacy, Faculty of Health Sciences, University of Eastern Finland , Kuopio campus, P.O. Box 1627, FI-70211, Kuopio, Finland
| | - Seppo Auriola
- School of Pharmacy, Faculty of Health Sciences, University of Eastern Finland , Kuopio campus, P.O. Box 1627, FI-70211, Kuopio, Finland
| | - Veli-Pekka Ranta
- School of Pharmacy, Faculty of Health Sciences, University of Eastern Finland , Kuopio campus, P.O. Box 1627, FI-70211, Kuopio, Finland
| | - Arto Urtti
- School of Pharmacy, Faculty of Health Sciences, University of Eastern Finland , Kuopio campus, P.O. Box 1627, FI-70211, Kuopio, Finland.,Centre for Drug Research, Faculty of Pharmacy, University of Helsinki , P.O. Box 56, FI-00014, Helsinki, Finland
| | - Marika Ruponen
- School of Pharmacy, Faculty of Health Sciences, University of Eastern Finland , Kuopio campus, P.O. Box 1627, FI-70211, Kuopio, Finland
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20
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Review on the binding of anticancer drug doxorubicin with DNA and tRNA: Structural models and antitumor activity. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2016; 158:274-9. [PMID: 26971631 DOI: 10.1016/j.jphotobiol.2016.02.032] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Accepted: 02/13/2016] [Indexed: 01/08/2023]
Abstract
In this review, we have compared the results of multiple spectroscopic studies and molecular modeling of anticancer drug doxorubicin (DOX) bindings to DNA and tRNA. DOX was intercalated into DNA duplex, while tRNA binding is via major and minor grooves. DOX-DNA intercalation is close to A-7, C-5, *C-19 (H-bonding with DOX NH2 group), G-6, T-8 and T-18 with the free binding energy of -4.99kcal/mol. DOX-tRNA groove bindings are near A-29, A-31, A-38, C-25, C-27, C-28, *G-30 (H-bonding) and U-41 with the free binding energy of -4.44kcal/mol. Drug intercalation induced a partial B to A-DNA transition, while tRNA remained in A-family structure. The structural differences observed between DOX bindings to DNA and tRNA can be the main reasons for drug antitumor activity. The results of in vitro MTT assay on SKC01 colon carcinoma are consistent with the observed DNA structural changes. Future research should be focused on finding suitable nanocarriers for delivery of DOX in vivo in order to exploit the full capacity of this very important anticancer drug.
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21
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Yousuf I, Arjmand F, Tabassum S, Toupet L, Khan RA, Siddiqui MA. Mechanistic insights into a novel chromone-appended Cu(II) anticancer drug entity: in vitro binding profile with DNA/RNA substrates and cytotoxic activity against MCF-7 and HepG2 cancer cells. Dalton Trans 2016; 44:10330-42. [PMID: 25970097 DOI: 10.1039/c5dt00770d] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A new chromone-appended Cu(ii) drug entity () was designed and synthesized as a potential anticancer chemotherapeutic agent. The structural elucidation was carried out thoroughly by elemental analysis, FT-IR, EPR, ESI-MS and single crystal X-ray crystallography. Complex resulted from the in situ methoxylation reaction of the 3-formylchromone ligand and its subsequent complexation with the copper nitrate salt in a 2 : 1 ratio, respectively. crystallized in the monoclinic P21/c space group possessing the lattice parameters, a = 8.75 Å, b = 5.07 Å, c = 26.22 Å, α = γ = 90°, β = 96.3° per unit cell. Furthermore, in vitro interaction studies of with ct-DNA and tRNA were carried out which suggested more avid binding propensity towards the RNA target via intercalative mode, which was reflected from its Kb, K and Ksv values. The gel electrophoretic mobility assay was carried out on the pBR322 plasmid DNA substrate, to ascertain the cleaving ability and the mechanistic pathway in the presence of additives, and the results revealed the efficient cleaving ability of via the oxidative pathway. In vitro cell growth inhibition via the MTT assay was carried out to evaluate the cytotoxicity of complex and IC50 values were found to be in the range of 5-10 μg mL(-1) in HepG2 and MCF-7 cancer cell lines, which were found to be much lower than the IC50 values of previously reported similar Cu(ii) complexes. Additionally, in the presence of , reactive oxygen species (ROS) and thiobarbituric acid reactive substance (TBARS) levels in the tested cancer cell lines increased significantly, coupled with reduced glutathione (GSH) levels. Thus, our results suggested that ROS plays an important role in cell apoptosis induced by the Cu(ii) complex and validates its potential to act as a robust anticancer drug entity.
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Affiliation(s)
- Imtiyaz Yousuf
- Department of Chemistry, Aligarh Muslim University, Aligarh 202002, India.
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22
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Pawlowska R, Janicka M, Jedrzejczyk D, Chworos A. RNA fragments mimicking tRNA analogs interact with cytochrome c. Mol Biol Rep 2016; 43:295-304. [DOI: 10.1007/s11033-016-3954-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 02/11/2016] [Indexed: 01/08/2023]
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23
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Sharma S, Toupet L, Ahmad M, Arjmand F. Synthesis, characterization, and crystal structure of RNA targeted l- and d-phenylalanine-(1,10-phen)–copper(ii) conjugate complexes: comparative in vitro RNA binding profile of enantiomers and their biological evaluation by morphological studies and antibacterial activity. RSC Adv 2016. [DOI: 10.1039/c6ra14503e] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Chiral Cu(ii) complexes targeting RNA showing morphological changes and Docking model.
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Affiliation(s)
- Surbhi Sharma
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
| | - Loic Toupet
- Institut de Physique de Rennes
- UMR 625
- Université de Rennes 1
- 35042 Rennes Cedex
- France
| | - Musheer Ahmad
- Department of Applied Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
| | - Farukh Arjmand
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
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24
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Rubio AR, Busto N, Leal JM, García B. Doxorubicin binds to duplex RNA with higher affinity than ctDNA and favours the isothermal denaturation of triplex RNA. RSC Adv 2016. [DOI: 10.1039/c6ra21387a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
The higher affinity of DOX with AU to give the intercalated complex AU/DOX is responsible for the disproportionation of the groove binding complex, UAU/DOX, to give rise to the AU/DOX and the U/DOX complexes at 25 °C
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Affiliation(s)
- Ana R. Rubio
- Chemistry Department
- University of Burgos
- 09001 Burgos
- Spain
| | - Natalia Busto
- Chemistry Department
- University of Burgos
- 09001 Burgos
- Spain
| | - José M. Leal
- Chemistry Department
- University of Burgos
- 09001 Burgos
- Spain
| | - Begoña García
- Chemistry Department
- University of Burgos
- 09001 Burgos
- Spain
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25
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Subastri A, Ramamurthy C, Suyavaran A, Lokeswara Rao P, Preedia Babu E, Hari Krishna K, Suresh Kumar M, Thirunavukkarasu C. Probing the interaction of troxerutin with transfer RNA by spectroscopic and molecular modeling. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2015; 153:137-44. [DOI: 10.1016/j.jphotobiol.2015.09.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Revised: 09/09/2015] [Accepted: 09/14/2015] [Indexed: 12/19/2022]
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26
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Wu Y, Zhang Y, Zhang W, Sun C, Wu J, Tang J. Reversing of multidrug resistance breast cancer by co-delivery of P-gp siRNA and doxorubicin via folic acid-modified core-shell nanomicelles. Colloids Surf B Biointerfaces 2015; 138:60-9. [PMID: 26655793 DOI: 10.1016/j.colsurfb.2015.11.041] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 11/20/2015] [Accepted: 11/22/2015] [Indexed: 12/16/2022]
Abstract
Multidrug resistance (MDR) remains one of major limitation for the successful treatment of many cancers including breast cancer. Co-delivery of chemotherapeutic drugs and small interfering RNA (siRNA) has been developed because of its ability to generate synergistic anticancer effects via different mechanisms of action, to reverse MDR and increase the efficacy of chemotherapeutic drugs in cancer therapy. Herein, we employed a kind of efficient multifunctional tumor targeted nanomicelles (PECL3) for the co-delivery of hydrophobic anti-cancer drugs and siRNA. This kind of nanomicelles were constructed by folic acid (FA)-decorated PEG-b-(PCL-g-PEI)-b-PCL triblock copolymers, which were synthesized through "click chemistry" and "ring opening" polymerization. Driven by the "core-shell" structure and the electrostatic interaction, this triblock copolymer could efficiently encapsulate P-glycoprotein (P-gp) siRNA and doxorubicin (DOX). The obtained nanomicelles can prevent renal clearance, RNase degradation and aggregation in circulation. Compared to the non-specific delivery, these FA functionalized nanomicelles could efficiently deliver P-gp siRNA to reducing both P-gp expression levels and IC50 value of the DOX in DOX-resistant breast cancer cells (MCF-7/ADR). Additionally, in vivo results showed that DOX loaded PECL3 (D-PECL3) micelles could reduce toxicity of DOX on nontarget tissues and significantly inhibited MCF-7/ADR tumor growth through encapsulating DOX in the micelles and deliver them to target tumor region. Taken together, these results proof that PECL3 micelles could co-deliver siRNA and drug to inhibit MDR tumor growth. These results suggested that the co-delivery of DOX and siRNA in tumor-targeting nanomicelles could excite synergistic effect of gene therapy and chemotherapy, thus can efficiently reverse MDR cancer and kill the cancer cells.
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Affiliation(s)
- Yang Wu
- Research Center of Clinical Oncology, Jiangsu Cancer Hospital, Nanjing 210009, PR China
| | - Yu Zhang
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210009, PR China
| | - Wei Zhang
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210009, PR China
| | - Chunlong Sun
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, PR China
| | - Jianzhong Wu
- Research Center of Clinical Oncology, Jiangsu Cancer Hospital, Nanjing 210009, PR China
| | - Jinhai Tang
- Department of General Surgery, Jiangsu Cancer Hospital, Nanjing 210009, PR China.
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27
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N'soukpoé-Kossi CN, Bourassa P, Mandeville JS, Bekale L, Bariyanga J, Tajmir-Riahi HA. Locating the binding sites of antioxidants resveratrol, genistein and curcumin with tRNA. Int J Biol Macromol 2015; 80:41-7. [PMID: 26093317 DOI: 10.1016/j.ijbiomac.2015.06.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Revised: 06/03/2015] [Accepted: 06/06/2015] [Indexed: 12/26/2022]
Abstract
We located the binding sites of antioxidants resveratrol, genistein and curcumin on tRNA in aqueous solution at physiological conditions using constant tRNA concentration and various polyphenol contents. FTIR, UV-visible, CD spectroscopic methods and molecular modeling were used to determine polyphenol binding sites, the binding constant and the effects of polyphenol complexation on tRNA conformation and particle formation. Structural analysis showed that polyphenols bind tRNA via G-C and A-U base pairs through hydrophilic, hydrophobic and H-bonding contacts with overall binding constants of K(res-tRNA)=8.95(±0.80)×10(3) M(-1), K(gen-tRNA)=3.07(±0.5)×10(3) M(-1) and K(cur-tRNA)=1.55(±0.3)×10(4) M(-1). Molecular modeling showed the participation of several nucleobases in polyphenol-tRNA adduct formation with free binding energy of -4.43 for resveratrol, -4.26 kcal/mol for genistein and -4.84 kcal/mol for curcumin, indicating that the interaction process is spontaneous at room temperature. While tRNA remains in A-family structure, major biopolymer aggregation and particle formation occurred at high polyphenol contents.
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Affiliation(s)
- C N N'soukpoé-Kossi
- Department of Chemistry-Physics, Université du Québec à Trois-Riviéres, C. P. 500v, Trois-Riviéres, Québec, Canada G9A 5H7
| | - P Bourassa
- Department of Chemistry-Physics, Université du Québec à Trois-Riviéres, C. P. 500v, Trois-Riviéres, Québec, Canada G9A 5H7
| | - J S Mandeville
- Department of Chemistry-Physics, Université du Québec à Trois-Riviéres, C. P. 500v, Trois-Riviéres, Québec, Canada G9A 5H7
| | - L Bekale
- Department of Chemistry-Physics, Université du Québec à Trois-Riviéres, C. P. 500v, Trois-Riviéres, Québec, Canada G9A 5H7
| | - J Bariyanga
- Department of Chemistry, University of Hawaii-West O'ahu, 96-129 Ala Ike, Pearl City, HI 96782, USA
| | - H A Tajmir-Riahi
- Department of Chemistry-Physics, Université du Québec à Trois-Riviéres, C. P. 500v, Trois-Riviéres, Québec, Canada G9A 5H7.
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Arjmand F, Yousuf I, Zaidi Y, Toupet L. Crystal structure determination, spectroscopic characterization and biological profile of a tailored ionic molecular entity, Sn(iv) iminodiacetic acid–piperazinediium conjugate: in vitro DNA/RNA binding studies, Topo I inhibition activity, cytotoxic and systemic toxicity studies. RSC Adv 2015. [DOI: 10.1039/c4ra13718c] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In vitro DNA/RNA binding studies and cytotoxic activity of complex 1 along with its in vivo systemic toxicity assay.
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Affiliation(s)
- Farukh Arjmand
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
| | - Imtiyaz Yousuf
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
| | - Yusra Zaidi
- Department of Zoology
- Aligarh Muslim University
- Aligarh 202002
- India
| | - Loic Toupet
- Institut de Physique de Rennes
- UMR 625
- Université de Rennes 1
- 35042 Rennes, Cedex
- France
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29
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Bourassa P, Thomas TJ, Bariyanga J, Tajmir-Riahi HA. Breast anticancer drug tamoxifen and its metabolites bind tRNA at multiple sites. Int J Biol Macromol 2014; 72:692-8. [PMID: 25263468 DOI: 10.1016/j.ijbiomac.2014.09.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Revised: 09/07/2014] [Accepted: 09/08/2014] [Indexed: 12/17/2022]
Abstract
The binding sites of breast anticancer drug tamoxifen and its metabolites with tRNA were located by FTIR, CD, UV-visible, and fluorescence spectroscopic methods and molecular modeling. Structural analysis showed that tamoxifen and its metabolites bind tRNA at several binding sites with overall binding constants of K(tam-tRNA) = 5.2 (± 0.6) × 10(4) M(-1), K(4-hydroxytam-tRNA) = 6.5 ( ± 0.5) × 10(4) M(-1) and K(endox-tRNA) = 1.3 (± 0.2) × 10(4) M(-1). The number of binding sites occupied by drug molecules on tRNA were 1 (tamoxifen), 0.8 (4-hydroxitamoxifen) and 1.2 (endoxifen). Docking showed the participation of several nucleobases in drug-tRNA complexes with the free binding energy of -4.31 (tamoxifen), -4.45 (4-hydroxtamoxifen) and -4.38 kcal/mol (endoxifen). The order of binding is 4-hydroxy-tamoxifen > tamoxifen > endoxifen. Drug binding did not alter tRNA conformation from A-family structure, while biopolymer aggregation occurred at high drug concentration.
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Affiliation(s)
- P Bourassa
- Department of Chemistry-Physics, University of Québec in Trois-Rivières, C. P. 500, Trois-Rivières, Québec G9A 5H7, Canada
| | - T J Thomas
- Department of Medicine, Rutgers Robert Wood Johnson Medical School, and Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08901, USA
| | - J Bariyanga
- Division of Humanities: Math/Sciences, University of Hawaii-West O'ahu, 91-1001 Farrington Highway, Kapolei, HI 96707, USA
| | - H A Tajmir-Riahi
- Department of Chemistry-Physics, University of Québec in Trois-Rivières, C. P. 500, Trois-Rivières, Québec G9A 5H7, Canada.
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30
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Synthesis, crystal structure and antiproliferative activity of Cu(II) nalidixic acid–DACH conjugate: Comparative in vitro DNA/RNA binding profile, cleavage activity and molecular docking studies. Eur J Med Chem 2014; 81:76-88. [DOI: 10.1016/j.ejmech.2014.04.080] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2014] [Revised: 04/27/2014] [Accepted: 04/29/2014] [Indexed: 11/19/2022]
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31
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Agudelo D, Bourassa P, Beauregard M, Bérubé G, Tajmir-Riahi HA. tRNA binding to antitumor drug doxorubicin and its analogue. PLoS One 2013; 8:e69248. [PMID: 23922696 PMCID: PMC3726733 DOI: 10.1371/journal.pone.0069248] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Accepted: 06/06/2013] [Indexed: 12/16/2022] Open
Abstract
The binding sites of antitumor drug doxorubicin (DOX) and its analogue N-(trifluoroacetyl) doxorubicin (FDOX) with tRNA were located, using FTIR, CD, fluorescence spectroscopic methods and molecular modeling. Different binding sites are involved in drug-tRNA adducts with DOX located in the vicinity of A-29, A-31, A-38, C-25, C-27, C-28, G-30 and U-41, while FDOX bindings involved A-23, A-44, C-25, C-27, G-24, G-42, G-53, G-45 and U-41 with similar free binding energy (-4.44 for DOX and -4.41 kcal/mol for FDOX adducts). Spectroscopic results showed that both hydrophilic and hydrophobic contacts are involved in drug-tRNA complexation and FDOX forms more stable complexes than DOX with K DOX-tRNA=4.7 (± 0.5)× 10(4) M(-1) and K FDOX-tRNA=6.3 (± 0.7)× 10(4) M(-1). The number of drug molecules bound per tRNA (n) was 0.6 for DOX and 0.4 for FDOX. No major alterations of tRNA structure were observed and tRNA remained in A-family conformation, while biopolymer aggregation and particle formation occurred at high drug concentrations.
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Affiliation(s)
- Daniel Agudelo
- Department of Chemistry and Physics, University of Québec at Trois-Rivières, Trois-Rivières, Québec, Canada
| | - Philippe Bourassa
- Department of Chemistry and Physics, University of Québec at Trois-Rivières, Trois-Rivières, Québec, Canada
| | - Marc Beauregard
- Department of Chemistry and Physics, University of Québec at Trois-Rivières, Trois-Rivières, Québec, Canada
| | - Gervais Bérubé
- Department of Chemistry and Physics, University of Québec at Trois-Rivières, Trois-Rivières, Québec, Canada
| | - Heidar-Ali Tajmir-Riahi
- Department of Chemistry and Physics, University of Québec at Trois-Rivières, Trois-Rivières, Québec, Canada
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