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Mukherjee D, Hasan MN, Ghosh R, Ghosh G, Bera A, Prasad SE, Hiwale A, Vemula PK, Das R, Pal SK. Decoding the Kinetic Pathways toward a Lipid/DNA Complex of Alkyl Alcohol Cationic Lipids Formed in a Microfluidic Channel. J Phys Chem B 2022; 126:588-600. [PMID: 35041417 DOI: 10.1021/acs.jpcb.1c07263] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Complexes of cationic liposomes with DNA have emerged as promising nonviral vectors for delivering genetic information into cells for gene therapy. Kinetics of the liposome/DNA complex (lipoplex) formation on a millisecond time scale are studied by monitoring time evolution of fluorescence of 8-anilino-1-naphthalene sulfonic acid (ANS) and ethidium bromide (EtBr) in a continuous flow microfluidic channel coupled to a fluorescence microscope. The formation of lipoplexes between calf thymus DNA and liposomes based on two novel cationic lipids (Lip1810 and Lip1814) are found to follow a two-step process with kinetic constants for the Lip1814/DNA complex (k1 = 1120-1383 s-1, k2 = 0.227-1.45 s-1) being significantly different from those (k1 = 68.53-98.5 s-1, k2 = 32.3-60.19 s-1) corresponding to formation of the Lip1810/DNA complex. The kinetic pathway leading to the formation of Lip1814/DNA complex is diffusion-controlled whereas the formation of Lip1810/DNA complex occurs by a conformational rearrangement-controlled pathway. The observed difference in the kinetics of lipoplex formation likely originates from different structures of the lipid/DNA complexes.
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Affiliation(s)
- Dipanjan Mukherjee
- Department of Chemical, Biological & Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700106, India
| | - Md Nur Hasan
- Department of Chemical, Biological & Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700106, India
| | - Ria Ghosh
- Department of Chemical, Biological & Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700106, India.,Department of Biochemistry, University of Calcutta, 35 Ballygunge Circular Road, Ballygunge, Kolkata 700019, India
| | - Gourab Ghosh
- Department of Chemistry, West Bengal State University, Barasat, Kolkata 700126, India
| | - Arpan Bera
- Department of Chemical, Biological & Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700106, India
| | - Sujanthi Easwara Prasad
- Institute for Stem Cell Science and Regenerative Medicine (instem), GKVK Campus, Bellary Road, Bangalore, 560065 KA, India.,School of Chemical and Biotechnology, SASTRA University, Thanjavur 613401, TN, India
| | - Ankita Hiwale
- Institute for Stem Cell Science and Regenerative Medicine (instem), GKVK Campus, Bellary Road, Bangalore, 560065 KA, India
| | - Praveen K Vemula
- Institute for Stem Cell Science and Regenerative Medicine (instem), GKVK Campus, Bellary Road, Bangalore, 560065 KA, India
| | - Ranjan Das
- Department of Chemistry, West Bengal State University, Barasat, Kolkata 700126, India
| | - Samir Kumar Pal
- Department of Chemical, Biological & Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700106, India
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Mukherjee D, Paul D, Sarker S, Hasan MN, Ghosh R, Prasad SE, Vemula PK, Das R, Adhikary A, Pal SK, Rakshit T. Polyethylene Glycol-Mediated Fusion of Extracellular Vesicles with Cationic Liposomes for the Design of Hybrid Delivery Systems. ACS Appl Bio Mater 2021; 4:8259-8266. [PMID: 35005950 DOI: 10.1021/acsabm.1c00804] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
To realize a customizable biogenic delivery platform, herein we propose combining cell-derived extracellular vesicles (EVs) derived from breast cancer cell line MCF-7 with synthetic cationic liposomes using a fusogenic agent, polyethylene glycol (PEG). We performed a fluorescence resonance energy transfer (FRET)-based lipid-mixing assay with varying PEG 1000 concentrations (0%, 15%, and 30%) correlated with flow cytometry-based analysis and supported by dimensional analysis by dynamic light scattering (DLS), transmission electron microscopy (TEM), and atomic force microscopy (AFM) to validate our fusion strategy. Our data revealed that these hybrid vesicles at a particular concentration of PEG (∼15%) improved the cellular delivery efficiency of a model siRNA molecule to the EV parental breast cancer cells, MCF-7, by factors of 2 and 4 compared to the loaded liposome and EV precursors, respectively. The critical rigidity/pliability balance of the hybrid systems fused by PEG seems to be playing a pivotal role in improving their delivery capability. This approach can provide clinically viable delivery solutions using EVs.
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Affiliation(s)
- Dipanjan Mukherjee
- Department of Chemical, Biological & Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700106, India
| | - Debashish Paul
- Department of Chemical, Biological & Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700106, India
| | - Sushmita Sarker
- Centre for Research in Nanoscience and Nanotechnology, University of Calcutta, Salt Lake, Kolkata 700106, India
| | - Md Nur Hasan
- Department of Chemical, Biological & Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700106, India
| | - Ria Ghosh
- Department of Chemical, Biological & Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700106, India
| | - Sujanthi Easwara Prasad
- UAS-GKVK Campus, Institute for Stem Cell Science and Regenerative Medicine (in Stem), Bellary Road, Bengaluru, Karnataka 560065, India
| | - Praveen K Vemula
- UAS-GKVK Campus, Institute for Stem Cell Science and Regenerative Medicine (in Stem), Bellary Road, Bengaluru, Karnataka 560065, India
| | - Ranjan Das
- Department of Chemistry, West Bengal State University, Barasat, Kolkata 700126, India
| | - Arghya Adhikary
- Centre for Research in Nanoscience and Nanotechnology, University of Calcutta, Salt Lake, Kolkata 700106, India
| | - Samir Kumar Pal
- Department of Chemical, Biological & Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700106, India
| | - Tatini Rakshit
- Department of Chemical, Biological & Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700106, India
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