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Mahalingam G, Rachamalla HK, Arjunan P, Karuppusamy KV, Periyasami Y, Mohan A, Subramaniyam K, M S, Rajendran V, Moorthy M, Varghese GM, Mohankumar KM, Thangavel S, Srivastava A, Marepally S. SMART-lipid nanoparticles enabled mRNA vaccine elicits cross-reactive humoral responses against the omicron sub-variants. Mol Ther 2024; 32:1284-1297. [PMID: 38414245 PMCID: PMC11081802 DOI: 10.1016/j.ymthe.2024.02.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 12/19/2023] [Accepted: 02/23/2024] [Indexed: 02/29/2024] Open
Abstract
The continual emergence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants has necessitated the development of broad cross-reactive vaccines. Recent findings suggest that enhanced antigen presentation could lead to cross-reactive humoral responses against the emerging variants. Toward enhancing the antigen presentation to dendritic cells (DCs), we developed a novel shikimoylated mannose receptor targeting lipid nanoparticle (SMART-LNP) system that could effectively deliver mRNAs into DCs. To improve the translation of mRNA, we developed spike domain-based trimeric S1 (TS1) mRNA with optimized codon sequence, base modification, and engineered 5' and 3' UTRs. In a mouse model, SMART-LNP-TS1 vaccine could elicit robust broad cross-reactive IgGs against Omicron sub-variants, and induced interferon-γ-producing T cells against SARS-CoV-2 virus compared with non-targeted LNP-TS1 vaccine. Further, T cells analysis revealed that SMART-LNP-TS1 vaccine induced long-lived memory T cell subsets, T helper 1 (Th1)-dominant and cytotoxic T cells immune responses against the SARS-CoV-2 virus. Importantly, SMART-LNP-TS1 vaccine produced strong Th1-predominant humoral and cellular immune responses. Overall, SMART-LNPs can be explored for precise antigenic mRNA delivery and robust immune responses. This platform technology can be explored further as a next-generation delivery system for mRNA-based immune therapies.
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Affiliation(s)
- Gokulnath Mahalingam
- Centre for Stem Cell Research (CSCR) (a unit of inStem, Bengaluru), CMC Campus, Vellore, TN 632002, India
| | - Hari Krishnareddy Rachamalla
- Department of Biochemistry and Molecular Biology, Mayo Clinic Florida, 4500 San Pablo Road S, Jacksonville, FL 32224, USA
| | - Porkizhi Arjunan
- Centre for Stem Cell Research (CSCR) (a unit of inStem, Bengaluru), CMC Campus, Vellore, TN 632002, India; Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
| | - Karthik V Karuppusamy
- Centre for Stem Cell Research (CSCR) (a unit of inStem, Bengaluru), CMC Campus, Vellore, TN 632002, India; Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
| | - Yogapriya Periyasami
- Centre for Stem Cell Research (CSCR) (a unit of inStem, Bengaluru), CMC Campus, Vellore, TN 632002, India
| | - Aruna Mohan
- Centre for Stem Cell Research (CSCR) (a unit of inStem, Bengaluru), CMC Campus, Vellore, TN 632002, India
| | - Kanimozhi Subramaniyam
- Centre for Stem Cell Research (CSCR) (a unit of inStem, Bengaluru), CMC Campus, Vellore, TN 632002, India
| | - Salma M
- Centre for Stem Cell Research (CSCR) (a unit of inStem, Bengaluru), CMC Campus, Vellore, TN 632002, India
| | - Vigneshwar Rajendran
- Centre for Stem Cell Research (CSCR) (a unit of inStem, Bengaluru), CMC Campus, Vellore, TN 632002, India
| | - Mahesh Moorthy
- Department of Clinical Virology, Christian Medical College and Hospital, Vellore, TN 632002, India
| | - George M Varghese
- Department of Infectious Diseases, Christian Medical College and Hospital, Vellore, TN 632002, India
| | - Kumarasamypet M Mohankumar
- Centre for Stem Cell Research (CSCR) (a unit of inStem, Bengaluru), CMC Campus, Vellore, TN 632002, India
| | - Saravanabhavan Thangavel
- Centre for Stem Cell Research (CSCR) (a unit of inStem, Bengaluru), CMC Campus, Vellore, TN 632002, India
| | - Alok Srivastava
- Centre for Stem Cell Research (CSCR) (a unit of inStem, Bengaluru), CMC Campus, Vellore, TN 632002, India
| | - Srujan Marepally
- Centre for Stem Cell Research (CSCR) (a unit of inStem, Bengaluru), CMC Campus, Vellore, TN 632002, India.
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Deshpande SS, Veeragoni D, Rachamalla HK, Misra S. Anticancer properties of ZnO-Curcumin nanocomposite against melanoma cancer and its genotoxicity profiling. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Veeragoni D, Deshpande S, Rachamalla HK, Ande A, Misra S, Mutheneni SR. In Vitro and In Vivo Anticancer and Genotoxicity Profiles of Green Synthesized and Chemically Synthesized Silver Nanoparticles. ACS Appl Bio Mater 2022; 5:2324-2339. [PMID: 35426672 DOI: 10.1021/acsabm.2c00149] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 12/25/2022]
Abstract
Silver nanoparticles were green synthesized (Ag-PTs) employing the crude extract of Padina tetrastromatica, a marine alga, and their anticancer and safety profile were compared with those of chemically synthesized silver nanoparticles (Ag-NPs) by in vitro and in vivo models. Ag-PT exhibited potent cytotoxicity against B16-F10 (IC50 = 3.29), MCF-7 (IC50 = 4.36), HEPG2 (IC50 =3.89), and HeLa (IC50 = 4.97) cancer cell lines, whereas they exhibited lower toxicity on normal CHO-K1 cells (IC50 = 5.16). The potent anticancer activity of Ag-PTs on cancer cells is due to the liberation of ions from the nanoparticles. Increased ion internalization to the cells promotes reactive oxygen species (ROS) production and ultimately leads to cell death. The in vitro anticancer results and in vivo melanoma tumor regression study showed significant inhibition of melanoma tumor growth due to Ag-PT treatment. Ag-PT is involved in the upregulation of the p53 protein and downregulation of Sox-2 along with the Ki-67 protein. The antitumor effects of Ag-PTs may be due to the additional release of ions at a lower pH of the tumor microenvironment than that of the normal tissue. The results of safety investigations of Ag-PT by studying mitotic chromosome aberrations (CAs), micronucleus (MN) induction, and mitotic index (MI) demonstrated Ag-PT to be less genotoxic compared to Ag-NP. The bioefficacy and toxicology outcomes together demonstrated that the green synthesized silver nanoparticles (Ag-PTs) could be explored to develop a biocompatible, therapeutic agent and a vehicle of drug delivery for various biomedical applications.
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Affiliation(s)
- Dileepkumar Veeragoni
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500007, Telangana, India.,Academy of Scientific & Innovative Research (AcSIR), Sector-19, Kamala Nehru Nagar, Ghaziabad 201002, Uttar Pradesh, India
| | - Shruti Deshpande
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500007, Telangana, India.,Academy of Scientific & Innovative Research (AcSIR), Sector-19, Kamala Nehru Nagar, Ghaziabad 201002, Uttar Pradesh, India
| | - Hari Krishnareddy Rachamalla
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500007, Telangana, India
| | - Arundha Ande
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500007, Telangana, India
| | - Sunil Misra
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500007, Telangana, India.,Academy of Scientific & Innovative Research (AcSIR), Sector-19, Kamala Nehru Nagar, Ghaziabad 201002, Uttar Pradesh, India
| | - Srinivasa Rao Mutheneni
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500007, Telangana, India.,Academy of Scientific & Innovative Research (AcSIR), Sector-19, Kamala Nehru Nagar, Ghaziabad 201002, Uttar Pradesh, India
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Rachamalla HK, Voshavar C, Arjunan P, Mahalingam G, Chowath RP, Banerjee R, Vemula PK, Marepally S. Skin-Permeable Nano-Lithocholic Lipidoid Efficiently Alleviates Psoriasis-like Chronic Skin Inflammations. ACS Appl Mater Interfaces 2022; 14:14859-14870. [PMID: 35347979 DOI: 10.1021/acsami.1c19180] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Long-term application of topical therapeutics for psoriasis has a plethora of side effects. Additionally, skin-permeating agents used in their formulations for deeper dermal delivery damage the skin. To address these limitations, we developed novel lithocholic acid analogues that could form lipid nanoparticles (nano-LCs) spontaneously in the aqueous milieu, permeate through the skin, penetrate the deeper dermal layers, and exert anti-inflammatory effects against psoriasis-like chronic skin inflammations. Prior findings demonstrated that lithocholic acid acts as a vitamin D receptor agonist without affecting the Ca+2 metabolism and also as an antagonist for ephrin type-A receptor 2 (EphA2). Taking cues from the previous findings, lithocholic acid derivatives with twin alkyl chains (LC6, LC8, LC10, and LC-12) were synthesized, nanoparticles (nano-LCs) were prepared, and they were evaluated for their skin permeability and anti-inflammatory properties. Among these nano-LCs, nano-LC10 demonstrated superior anti-inflammatory properties and inhibition of keratinocyte proliferation in various cell-based evaluations. Furthermore, the therapeutic efficiency of nano-LC10 was evaluated in an imiquimod-induced psoriasis-like mouse model and demonstrated comparable efficiency with the standard topical formulation, Sorvate, in reducing skin inflammations. Nano-LC10 also reduced systemic inflammation, organ toxicity, and also proinflammatory serum cytokine levels. Overall, nano-lithocholic lipidoid (nano-LC10) can be a potential novel class of therapeutics for topical application in treating psoriasis.
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Affiliation(s)
| | - Chandrashekhar Voshavar
- College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, Florida 32307, United States
| | - Porkizhi Arjunan
- Centre for Stem Cell Research (CSCR) (a Unit of InStem, Bengaluru), CMC Campus, Bagayam, Vellore, Tamil Nadu 632002, India
- Manipal Academy of Higher Education, Manipal, Karnataka 76793, India
| | - Gokulnath Mahalingam
- Centre for Stem Cell Research (CSCR) (a Unit of InStem, Bengaluru), CMC Campus, Bagayam, Vellore, Tamil Nadu 632002, India
| | - Rashmi Praksash Chowath
- Centre for Stem Cell Research (CSCR) (a Unit of InStem, Bengaluru), CMC Campus, Bagayam, Vellore, Tamil Nadu 632002, India
| | - Rajkumar Banerjee
- CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 506007, India
| | - Praveen Kumar Vemula
- Institute for Stem Cell Science and Regenerative Medicine (inStem), UAS-GKVK Campus, Bellary Road, Bengaluru 560065, India
| | - Srujan Marepally
- Centre for Stem Cell Research (CSCR) (a Unit of InStem, Bengaluru), CMC Campus, Bagayam, Vellore, Tamil Nadu 632002, India
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Mahalingam G, Rachamalla HK, Arjunan P, Periyasami Y, M S, Thangavel S, Mohankumar KM, Moorthy M, Velayudhan SR, Srivastava A, Marepally S. Optimization of SARS-CoV-2 Pseudovirion Production in Lentivirus Backbone With a Novel Liposomal System. Front Pharmacol 2022; 13:840727. [PMID: 35401169 PMCID: PMC8990231 DOI: 10.3389/fphar.2022.840727] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 02/21/2022] [Indexed: 01/11/2023] Open
Abstract
Due to the fast mutating nature of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the development of novel therapeutics, vaccines, and evaluating the efficacies of existing one’s against the mutated strains is critical for containing the virus. Pseudotyped SARS-CoV-2 viruses are proven to be instrumental in evaluating the efficiencies of therapeutics, owing to their ease in application and safety when compared to handling the live virus. However, a comprehensive protocol that includes selecting transfection reagents, validating different packaging systems for high-throughput screening of neutralizing antibodies, is still a requisite. To this end, we designed and synthesized amide linker-based cationic lipids with varying hydrophilic head groups from dimethyl (Lipo-DME) to methyl, ethylhydroxyl (Lipo-MeOH), and diethylhydroxyl (Lipo-DOH) keeping the hydrophobic tail, stearic acid, as constant. Among the liposomal formulations of these lipids, Lipo-DOH was found to be superior in delivering plasmids and demonstrated comparable transfection efficiencies with commercial standard Lipofectamine 3000. We further used Lipo-DOH for lentivirus and SARS-CoV-2 pseudovirion preparation. For comparing different lentivirus packaging systems, we optimized conditions using Addgene and BEI systems and found that the BEI lenti plasmid system was found to be efficient in making lentiviruses using Lipo-DOH. Using the optimized transfection reagent and the lentivirus system, we developed a robust protocol for the generation of SARS-CoV-2 pseudovirions and characterized their infectivity in human ACE2 expressing HEK-293T cells and neutralizing properties in IgG against spike protein of SARS-CoV-2 positive human sera from individuals recovered from COVID-19.
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Affiliation(s)
- Gokulnath Mahalingam
- Centre for Stem Cell Research (CSCR) (a Unit of InStem, Bengaluru), CMC Campus, Vellore, India
| | | | - Porkizhi Arjunan
- Centre for Stem Cell Research (CSCR) (a Unit of InStem, Bengaluru), CMC Campus, Vellore, India
| | - Yogapriya Periyasami
- Centre for Stem Cell Research (CSCR) (a Unit of InStem, Bengaluru), CMC Campus, Vellore, India
| | - Salma M
- Centre for Stem Cell Research (CSCR) (a Unit of InStem, Bengaluru), CMC Campus, Vellore, India
| | | | | | - Mahesh Moorthy
- Department of Clinical Virology, Christian Medical College, Vellore, India
| | - Shaji R. Velayudhan
- Centre for Stem Cell Research (CSCR) (a Unit of InStem, Bengaluru), CMC Campus, Vellore, India
| | - Alok Srivastava
- Centre for Stem Cell Research (CSCR) (a Unit of InStem, Bengaluru), CMC Campus, Vellore, India
| | - Srujan Marepally
- Centre for Stem Cell Research (CSCR) (a Unit of InStem, Bengaluru), CMC Campus, Vellore, India
- *Correspondence: Srujan Marepally,
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Rachamalla HK, Bhattacharya S, Ahmad A, Sridharan K, Madamsetty VS, Mondal SK, Wang E, Dutta SK, Jan BL, Jinka S, Chandra Sekhar Jaggarapu MM, Yakati V, Mukhopadhyay D, Alkharfy KM, Banerjee R. Enriched pharmacokinetic behavior and antitumor efficacy of thymoquinone by liposomal delivery. Nanomedicine (Lond) 2021; 16:641-656. [PMID: 33769068 DOI: 10.2217/nnm-2020-0470] [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: 12/23/2022] Open
Abstract
Background: Thymoquinone (TQ) has potential anti-inflammatory, immunomodulatory and anticancer effects but its clinical use is limited by its low solubility, poor bioavailability and rapid clearance. Aim: To enhance systemic bioavailability and tumor-specific toxicity of TQ. Materials & methods: Cationic liposomal formulation of TQ (D1T) was prepared via ethanol injection method and their physicochemical properties, anticancer effects in orthotopic xenograft pancreatic tumor model and pharmacokinetic behavior of D1T relative to TQ were evaluated. Results: D1T showed prominent inhibition of pancreatic tumor progression, significantly greater in vivo absorption, approximately 1.5-fold higher plasma concentration, higher bioavailability, reduced volume of distribution and improved clearance relative to TQ. Conclusion: Encapsulation of TQ in cationic liposomal formulation enhanced its bioavailability and anticancer efficacy against xenograft pancreatic tumor.
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Affiliation(s)
- Hari Krishnareddy Rachamalla
- Applied Biology Division, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad, Telangana 500007, India
| | - Santanu Bhattacharya
- Department of Biochemistry & Molecular Biology, Mayo Clinic College of Medicine & Science, Jacksonville, FL, USA.,Department of Physiology & Biomedical Engineering, Mayo Clinic College of Medicine & Science, Jacksonville, FL, USA
| | - Ajaz Ahmad
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Kathyayani Sridharan
- Applied Biology Division, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad, Telangana 500007, India
| | - Vijay Sagar Madamsetty
- Department of Biochemistry & Molecular Biology, Mayo Clinic College of Medicine & Science, Jacksonville, FL, USA
| | - Sujan Kumar Mondal
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA.,UPMC Hilman Cancer Center, Pittsburgh, PA 15232, USA
| | - Enfeng Wang
- Department of Biochemistry & Molecular Biology, Mayo Clinic College of Medicine & Science, Jacksonville, FL, USA
| | - Shamit K Dutta
- Department of Biochemistry & Molecular Biology, Mayo Clinic College of Medicine & Science, Jacksonville, FL, USA
| | - Basit L Jan
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Sudhakar Jinka
- Applied Biology Division, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad, Telangana 500007, India
| | | | - Venu Yakati
- Applied Biology Division, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad, Telangana 500007, India
| | - Debabrata Mukhopadhyay
- Department of Biochemistry & Molecular Biology, Mayo Clinic College of Medicine & Science, Jacksonville, FL, USA.,Department of Physiology & Biomedical Engineering, Mayo Clinic College of Medicine & Science, Jacksonville, FL, USA
| | - Khalid M Alkharfy
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Rajkumar Banerjee
- Applied Biology Division, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad, Telangana 500007, India
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Jinka S, Rachamalla HK, Bhattacharyya T, Sridharan K, Sekhar Jaggarapu MMC, Yakati V, Banerjee R. Glucocorticoid receptor-targeted liposomal delivery system for delivering small molecule ESC8 and anti-miR-Hsp90 gene construct to combat colon cancer. Biomed Mater 2021; 16:024105. [PMID: 33434900 DOI: 10.1088/1748-605x/abdb08] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
High mortality rate in colon cancer patients is often attributed to late diagnosis. To overcome the conventional chemotherapy associated challenges, chemotherapeutic drugs (single or combination) or genetic drugs are often delivered using ligand-modified delivery systems that selectively target over expressed receptors or particular receptors that act abnormally in cancer cells. In the current investigation, first we assessed anti-colon cancer effect of a cationic estrogenic molecule, ESC8 which was earlier shown to act against estrogen receptor (ER) ± breast cancer cells. We found that against both colon and breast cancer cells the anticancer activity is intervened by AMPK-mTOR pathway and at the same time it acts as anti-angiogenic agent. It also showed enhancement of mesenchymal-to-epithelial (MET) transition as well as reduction of cyclin D in both cells. Earlier we demonstrated the use of glucocorticoid receptor (GR) targeted cationic liposomal delivery system carrying anti-Hsp90 plasmid and ESC8 to act as potent anti-skin cancer therapeutics. As ESC8 demonstrated anti-colon cancer effect in vitro, in here, we used the same GR-targeted liposomal formulation but carrying a more fusogenic cationic lipid D1 and used against colon tumor orthotopic model in mice. We show that GR targeted formulation (D1XE-Hsp90) exhibited efficient cellular uptake, transfection and selective cytotoxicity in colon cancer cells, tumor-targeted bio-distribution and enhanced survivability, reduced tumor size in orthotopic colon tumor-bearing mice. The tumor sections exhibited reduced tumor proliferation as well as neo-vascularization, thus supporting the holistic antitumor effect of the D1XE-Hsp90 formulation. Over all our results establish the GR-targeted D1XE-Hsp90 formulation as potent anti-colon cancer therapeutics.
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Affiliation(s)
- Sudhakar Jinka
- Applied Biology Division, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad, Telangana 500007, India. Academy of Scientific & Innovative Research (AcSIR), CSIR-HRDC Campus, Ghaziabad, Uttar Pradesh 201002, India
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Rachamalla HK, Mondal SK, Deshpande SS, Sridharan K, Javaji K, Jaggarapu MMCS, Jinka S, Bollu V, Misra S, Banerjee R. Efficient anti-tumor nano-lipoplexes with unsaturated or saturated lipid induce differential genotoxic effects in mice. Nanotoxicology 2019; 13:1161-1175. [PMID: 31294672 DOI: 10.1080/17435390.2019.1643049] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [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: 01/21/2023]
Abstract
Cationic lipids are well-known excipients for nanometric liposomal gene delivery systems. However, because of the suspected, collateral toxicity in normal cells, the use of cationic lipids for the treatment of human tumor is largely limited. Recently, we developed a glucocorticoid receptor (GR)-targeted liposomal, anticancer delivery system (DXE nano-lipoplex), which carried cationic lipid of saturated twin aliphatic chains. It exhibited efficient anti-tumor effect in aggressive and drug-resistant tumor models. Toward exploring lipoplex's human clinical use, we incorporated another nano-lipoplex (D1XE) group that carried cationic lipid with one of its aliphatic chain carrying unsaturation and compared in vivo genotoxicological profiling-based safety assessment and the respective anti-tumor efficacy of the lipoplexes. Thus, both the lipoplexes differ only by the chemical identity of one of their constituent cationic lipid. Unsaturated aliphatic chains in lipid generally impart efficient cell surface fusogenic property in lipid formulations. Herein, we report that nanoplex with unsaturated cationic lipid (D1XE) exhibited better physical appearance with less flocculent behavior than nanoplex with saturated lipid (DXE). Upon multiple injections, D1XE nanoplex imparted better tumor regression but most importantly, exhibited much lower overall toxicity (e.g. genotoxicity, weight loss, etc.) than DXE nanoplex. With a higher antitumor effect but a lower genotoxic effect, D1XE is proved to be a better nanoplex than DXE for the potential clinical trial. Thus, this study clearly delineates the importance of incorporating a constituent lipid that carries a single unsaturated aliphatic chain toward developing efficient anti-tumor nano-lipoplexes with reduced genotoxicity.
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Affiliation(s)
- Hari Krishnareddy Rachamalla
- Applied Biology Division, CSIR-Indian Institute of Chemical Technology , Hyderabad , India.,Academy of Scientific & Innovative Research (AcSIR), CSIR-HRDC Campus , Ghaziabad , India
| | - Sujan Kumar Mondal
- Applied Biology Division, CSIR-Indian Institute of Chemical Technology , Hyderabad , India.,Academy of Scientific & Innovative Research (AcSIR), CSIR-HRDC Campus , Ghaziabad , India
| | - Shruti S Deshpande
- Applied Biology Division, CSIR-Indian Institute of Chemical Technology , Hyderabad , India.,Academy of Scientific & Innovative Research (AcSIR), CSIR-HRDC Campus , Ghaziabad , India
| | - Kathyayani Sridharan
- Applied Biology Division, CSIR-Indian Institute of Chemical Technology , Hyderabad , India.,Academy of Scientific & Innovative Research (AcSIR), CSIR-HRDC Campus , Ghaziabad , India
| | - Kalpana Javaji
- Applied Biology Division, CSIR-Indian Institute of Chemical Technology , Hyderabad , India.,Academy of Scientific & Innovative Research (AcSIR), CSIR-HRDC Campus , Ghaziabad , India
| | - Madan Mohan Chandra Sekhar Jaggarapu
- Applied Biology Division, CSIR-Indian Institute of Chemical Technology , Hyderabad , India.,Academy of Scientific & Innovative Research (AcSIR), CSIR-HRDC Campus , Ghaziabad , India
| | - Sudhakar Jinka
- Applied Biology Division, CSIR-Indian Institute of Chemical Technology , Hyderabad , India.,Academy of Scientific & Innovative Research (AcSIR), CSIR-HRDC Campus , Ghaziabad , India
| | - Vishnusravan Bollu
- Applied Biology Division, CSIR-Indian Institute of Chemical Technology , Hyderabad , India.,Academy of Scientific & Innovative Research (AcSIR), CSIR-HRDC Campus , Ghaziabad , India
| | - Sunil Misra
- Applied Biology Division, CSIR-Indian Institute of Chemical Technology , Hyderabad , India.,Academy of Scientific & Innovative Research (AcSIR), CSIR-HRDC Campus , Ghaziabad , India
| | - Rajkumar Banerjee
- Applied Biology Division, CSIR-Indian Institute of Chemical Technology , Hyderabad , India.,Academy of Scientific & Innovative Research (AcSIR), CSIR-HRDC Campus , Ghaziabad , India
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Muripiti V, Brijesh L, Rachamalla HK, Marepally SK, Banerjee R, Patri SV. α-Tocopherol-ascorbic acid hybrid antioxidant based cationic amphiphile for gene delivery: Design, synthesis and transfection. Bioorg Chem 2018; 82:178-191. [PMID: 30326400 DOI: 10.1016/j.bioorg.2018.02.025] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 02/23/2018] [Accepted: 02/23/2018] [Indexed: 12/11/2022]
Abstract
Natural antioxidants and vitamins have potential to protect biological systems from peroxidative damage induced by peroxyl radicals, α-tocopherol (Vitamin E, lipid soluble) and ascorbic acid (vitamin C, water soluble), well known natural antioxidant molecules. In the present study we described the synthesis and biological evaluation of hybrid of these two natural antioxidants with each other via ammonium di-ethylether linker, Toc-As in gene delivery. Two control cationic lipids N14-As and Toc-NOH are designed in such a way that one is with ascorbic acid moiety and no tocopherol moiety; another is with tocopherol moiety and no ascorbic acid moiety respectively. All the three cationic lipids can form self-assembled aggregates. The antioxidant efficiencies of the three lipids were compared with free ascorbic acid. The cationic lipids (Toc-As, N14-As and Toc-NOH) were formulated individually with a well-known fusogenic co-lipid DOPE and characterization studies such as DNA binding, heparin displacement, size, charge, circular dichroism were performed. The biological characterization studies such as cell viability assay and in vitro transfection studies were carried out with the above formulations in HepG2, Neuro-2a, CHO andHEK-293T cell lines. The three formulations showed their transfection efficiencies with highest in Toc-As, moderate inN14-As and least in Toc-NOH. Interestingly, the transfection efficiency observed with the antioxidant based conjugated lipid Toc-As is found to be approximately two and half fold higher than the commercially available lipofectamine 2000 at 4:1 charge ratio in Hep G2 cell lines. In the other cell lines studied the efficiency of Toc-As is found to be either higher or similarly active compared to lipofectamine 2000. The physicochemical characterization results show that Toc-As lipid is showing maximum antioxidant potency, strong binding with pDNA, least size and optimal zeta potential. It is also found to be least toxic in all the cell lines studied especially in Neuro-2a cell lines when compared to other two lipids. In summary, the designed antioxidant lipid can be exploited as a delivering system for treating ROS related diseases such as malignancy, brain stroke, etc.
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Affiliation(s)
| | | | - Hari Krishnareddy Rachamalla
- Division of Lipid Science and Technology, Indian Institute of Chemical Technology, Hyderabad 500607, Telangana, India
| | | | - Rajkumar Banerjee
- Division of Lipid Science and Technology, Indian Institute of Chemical Technology, Hyderabad 500607, Telangana, India
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Muripiti V, Rachamalla HK, Banerjee R, Patri SV. α-Tocopherol-based cationic amphiphiles with a novel pH sensitive hybrid linker for gene delivery. Org Biomol Chem 2018; 16:2932-2946. [DOI: 10.1039/c8ob00276b] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Endosomal escape is one of the barriers for the efficient liposomal gene delivery.
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Affiliation(s)
| | | | - Rajkumar Banerjee
- Center for Chemical Biology
- Indian Institute of Chemical Technology
- Hyderabad-500607
- India
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