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Baig MMFA, Lai WF, Akhtar MF, Saleem A, Mikrani R, Farooq MA, Ahmed SA, Tahir A, Naveed M, Abbas M, Ansari MT. Targeting folate receptors (α1) to internalize the bleomycin loaded DNA-nanotubes into prostate cancer xenograft CWR22R cells. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113785] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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DNA nanotechnology as a tool to develop molecular tension probes for bio-sensing and bio-imaging applications: An up-to-date review. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.nanoso.2020.100523] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Baig MMFA, Lai WF, Mikrani R, Jabeen M, Naveed M, Abbas M, Farooq MA, Ahsan A, Kassim SA, Khan GJ, Ansari MT. Synthetic NRG-1 functionalized DNA nanospindels towards HER2/neu targets for in vitro anti-cancer activity assessment against breast cancer MCF-7 cells. J Pharm Biomed Anal 2020; 182:113133. [PMID: 32004770 DOI: 10.1016/j.jpba.2020.113133] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 01/14/2020] [Accepted: 01/24/2020] [Indexed: 02/08/2023]
Abstract
DNA based nano-carriers synthesized from short circular scaffolds (circular DNA nanotechnology) attains stiffer topology for ligand functionalization (neuregulin-1/NRG-1 ligand) and biological applications (targeted drug delivery). Daunorubicin (DR) is a hydrophobic chemical that requires robust vectors to efficiently encapsulate and avoid its free dispersion in water, biological media and cell culture. Here we design DNA nanospindels (DNA-NS) to efficiently load DR and target the (highly expressed) HER2/neu receptors on the plasma membrane of drug-resistant MCF-7 (breast cancer) cells. DNA-NS were synthesized by polymerizing the DNA-triangles (utilizing 84-nt short circular scaffold strand) into larger DNA nano-ribbons characterized by the native-PAGE testing. AFM results revealed the spinning of DNA nanoribbons on its (own) axis because of the intrinsic curvature of the DNA double helix resulting in the formation of the firm and twisted DNA-NS with the diameter (50-70 nm) and length (0.5-4 μm). DA loading onto DNA-NS was confirmed by the UV shift analysis. The MTT results with the blank DNA-NS evidenced its biocompatibility (remained value of 93%) compared to the decreased viability of the MCF-7 cells after treatment with DNA-NS (DR loaded). These findings were further supported by the analysis of cell proliferation/apoptosis through flow cytometry showing 64% apoptosis after treating with the DR loaded DNA-NS. Hence, through the short circular DNA nanotechnology, we have achieved a stiffer, uniform, and biocompatible DNA-NS for applications in the targeted therapy.
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Affiliation(s)
- Mirza Muhammad Faran Ashraf Baig
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, PR China; Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Bahauddin Zakariya University, Multan 60000, Pakistan.
| | - Wing-Fu Lai
- Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hong Kong Special Administrative Region, PR China; School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, PR China
| | - Reyaj Mikrani
- Department of Pharmaceutics, Basic medicine, and Clinical Pharmacy, School of Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, PR China
| | - Mehreen Jabeen
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Bahauddin Zakariya University, Multan 60000, Pakistan
| | - Muhammad Naveed
- School of Pharmacy, Nanjing Medical University, Jiangsu Province, Nanjing 211166, PR China
| | - Muhammad Abbas
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Muhammad Asim Farooq
- Department of Pharmaceutics, Basic medicine, and Clinical Pharmacy, School of Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, PR China
| | - Anam Ahsan
- College of Animal Science & Veterinary Medicine, Shanxi Agricultural University, Taigu, PR China
| | - Said Abasse Kassim
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, PR China
| | - Ghulam Jilany Khan
- Faculty of Pharmacy, University of Central Punjab, Lahore, 54570, Pakistan
| | - Muhammad Tayyab Ansari
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Bahauddin Zakariya University, Multan 60000, Pakistan
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Ali M, Afshan N, Jiang C, Zheng H, Xiao SJ. 2D DNA lattice arrays assembled from DNA dumbbell tiles using poly(A-T)-rich stems. NANOSCALE 2019; 11:22216-22221. [PMID: 31728476 DOI: 10.1039/c9nr07911d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Poly(A-T)-rich sequences have been applied as stems of DNA dumbbell tiles for construction of single crystalline 2D DNA lattice arrays in slightly acidic solutions. These arrays show much higher stability and better organised crystalline lattice structures than those assembled from DNA dumbbell tiles with randomly sequenced stems in slightly alkaline environments. DNA nanotechnology probably provides a useful platform to study the mechanical properties of DNA duplexes with specific sequences.
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Affiliation(s)
- Mashooq Ali
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, Jiangsu, China.
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