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Kumar S, Taumar D, Gaikwad S, More A, Nema V, Mukherjee A. Antiretroviral action of Rosemary oil-based atazanavir formulation and the role of self-nanoemulsifying drug delivery system in the management of HIV-1 infection. Drug Deliv Transl Res 2024; 14:1888-1908. [PMID: 38161197 DOI: 10.1007/s13346-023-01492-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/06/2023] [Indexed: 01/03/2024]
Abstract
Atazanavir or ATV is an FDA-approved, HIV-1 protease inhibitor that belongs to the azapeptide group. Over time, it has been observed that ATV can cause multiple adverse side effects in the form of liver diseases including elevations in serum aminotransferase, indirect hyper-bilirubinemia, and idiosyncratic acute liver injury aggravating the underlying chronic viral hepatitis. Hence, there is an incessant need to explore the safe and efficacious method of delivering ATV in a controlled manner that may reduce the proportion of its idiosyncratic reactions in patients who are on antiretroviral therapy for years. In this study, we assessed ATV formulation along with Rosemary oil to enhance the anti-HIV-1 activity and its controlled delivery through self-nanoemulsifying drug delivery system or SNEDDS to enhance its oral bioavailability. While the designing, development, and characterization of ATV-SNEDDS were addressed through various evaluation parameters and pharmacokinetic-based studies, in vitro cell-based experiments assured the safety and efficacy of the designed ATV formulation. The study discovered the potential of ATV-SNEDDS to inhibit HIV-1 infection at a lower concentration as compared to its pure counterpart. Simultaneously, we could also demonstrate the ATV and Rosemary oil providing leads for designing and developing such formulations for the management of HIV-1 infections with the alleviation in the risk of adverse reactions.
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Affiliation(s)
- Shobhit Kumar
- Department of Pharmaceutical Technology, Meerut Institute of Engineering and Technology (MIET), NH-58, Delhi-Roorkee Highway, Meerut, 250005, Uttar Pradesh, India
| | - Dhananjay Taumar
- Department of Pharmaceutical Technology, Meerut Institute of Engineering and Technology (MIET), NH-58, Delhi-Roorkee Highway, Meerut, 250005, Uttar Pradesh, India
| | - Shraddha Gaikwad
- Division of Virology, ICMR-National AIDS Research Institute, Ministry of Health & Family Welfare, Plot No. 73, 'G' Block, MIDC, Bhosari, Pune, 411026, Maharashtra, India
| | - Ashwini More
- Division of Virology, ICMR-National AIDS Research Institute, Ministry of Health & Family Welfare, Plot No. 73, 'G' Block, MIDC, Bhosari, Pune, 411026, Maharashtra, India
| | - Vijay Nema
- Division of Virology, ICMR-National AIDS Research Institute, Ministry of Health & Family Welfare, Plot No. 73, 'G' Block, MIDC, Bhosari, Pune, 411026, Maharashtra, India
| | - Anupam Mukherjee
- Division of Virology, ICMR-National AIDS Research Institute, Ministry of Health & Family Welfare, Plot No. 73, 'G' Block, MIDC, Bhosari, Pune, 411026, Maharashtra, India.
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Hao J, Zhang X, Hu R, Lu X, Wang H, Li Y, Cheng K, Li Q. Metabolomics combined with network pharmacology reveals a role for astragaloside IV in inhibiting enterovirus 71 replication via PI3K-AKT signaling. J Transl Med 2024; 22:555. [PMID: 38858642 PMCID: PMC11163744 DOI: 10.1186/s12967-024-05355-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Accepted: 05/29/2024] [Indexed: 06/12/2024] Open
Abstract
BACKGROUND Astragaloside IV (AST-IV), as an effective active ingredient of Astragalus membranaceus (Fisch.) Bunge. It has been found that AST-IV inhibits the replication of dengue virus, hepatitis B virus, adenovirus, and coxsackievirus B3. Enterovirus 71 (EV71) serves as the main pathogen in severe hand-foot-mouth disease (HFMD), but there are no specific drugs available. In this study, we focus on investigating whether AST-IV can inhibit EV71 replication and explore the potential underlying mechanisms. METHODS The GES-1 or RD cells were infected with EV71, treated with AST-IV, or co-treated with both EV71 and AST-IV. The EV71 structural protein VP1 levels, the viral titers in the supernatant were measured using western blot and 50% tissue culture infective dose (TCID50), respectively. Network pharmacology was used to predict possible pathways and targets for AST-IV to inhibit EV71 replication. Additionally, ultra-high performance liquid chromatography-high resolution mass spectrometry (UHPLC-HRMS) was used to investigate the potential targeted metabolites of AST-IV. Associations between metabolites and apparent indicators were performed via Spearman's algorithm. RESULTS This study illustrated that AST-IV effectively inhibited EV71 replication. Network pharmacology suggested that AST-IV inhibits EV71 replication by targeting PI3K-AKT. Metabolomics results showed that AST-IV achieved these effects by elevating the levels of hypoxanthine, 2-ketobutyric acid, adenine, nicotinic acid mononucleotide, prostaglandin H2, 6-hydroxy-1 H-indole-3- acetamide, oxypurinol, while reducing the levels of PC (14:0/15:0). Furthermore, AST-IV also mitigated EV71-induced oxidative stress by reducing the levels of MDA, ROS, while increasing the activity of T-AOC, CAT, GSH-Px. The inhibition of EV71 replication was also observed when using the ROS inhibitor N-Acetylcysteine (NAC). Additionally, AST-IV exhibited the ability to activate the PI3K-AKT signaling pathway and suppress EV71-induced apoptosis. CONCLUSION This study suggests that AST-IV may activate the cAMP and the antioxidant stress response by targeting eight key metabolites, including hypoxanthine, 2-ketobutyric acid, adenine, nicotinic acid mononucleotide, prostaglandin H2, 6-Hydroxy-1 H-indole-3-acetamide, oxypurinol and PC (14:0/15:0). This activation can further stimulate the PI3K-AKT signaling to inhibit EV71-induced apoptosis and EV71 replication.
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Affiliation(s)
- JinFang Hao
- School of Pharmaceutical, Department of Laboratory Medicine of Fenyang College, Shanxi Medical University, Taiyuan, Shanxi Province, 030001, China
- Shanxi Key Laboratory of Innovative Drug for the Treatment of Serious Diseases Basing Chronic Inflammation, Shanxi University of Chinese Medicine, Jinzhong, 030619, China
- Medicinal Basic Research Innovation Center of Chronic Kidney Disease, Ministry of Education, Shanxi Medical University, Taiyuan, China
| | - Xiaoyan Zhang
- School of Pharmaceutical, Department of Laboratory Medicine of Fenyang College, Shanxi Medical University, Taiyuan, Shanxi Province, 030001, China.
| | - Ruixian Hu
- School of Pharmaceutical, Department of Laboratory Medicine of Fenyang College, Shanxi Medical University, Taiyuan, Shanxi Province, 030001, China
| | - Xiufeng Lu
- School of Pharmaceutical, Department of Laboratory Medicine of Fenyang College, Shanxi Medical University, Taiyuan, Shanxi Province, 030001, China
| | - Hui Wang
- School of Pharmaceutical, Department of Laboratory Medicine of Fenyang College, Shanxi Medical University, Taiyuan, Shanxi Province, 030001, China
| | - Yuanhong Li
- School of Pharmaceutical, Department of Laboratory Medicine of Fenyang College, Shanxi Medical University, Taiyuan, Shanxi Province, 030001, China
| | - Kai Cheng
- School of Pharmaceutical, Department of Laboratory Medicine of Fenyang College, Shanxi Medical University, Taiyuan, Shanxi Province, 030001, China
| | - Qingshan Li
- School of Pharmaceutical, Department of Laboratory Medicine of Fenyang College, Shanxi Medical University, Taiyuan, Shanxi Province, 030001, China.
- Shanxi Key Laboratory of Innovative Drug for the Treatment of Serious Diseases Basing Chronic Inflammation, Shanxi University of Chinese Medicine, Jinzhong, 030619, China.
- Medicinal Basic Research Innovation Center of Chronic Kidney Disease, Ministry of Education, Shanxi Medical University, Taiyuan, China.
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Chaijan S, Chaijan M, Uawisetwathana U, Panya A, Phonsatta N, Shetty K, Panpipat W. Phenolic and Metabolic Profiles, Antioxidant Activities, Glycemic Control, and Anti-Inflammatory Activity of Three Thai Papaya Cultivar Leaves. Foods 2024; 13:1692. [PMID: 38890920 PMCID: PMC11171871 DOI: 10.3390/foods13111692] [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: 05/03/2024] [Revised: 05/26/2024] [Accepted: 05/27/2024] [Indexed: 06/20/2024] Open
Abstract
This study thoroughly examined the proximate composition, bioactive composition, and in vitro biological activities of three different cultivars of papaya leaf extracts (PLEs) as potential functional ingredients and nutraceuticals. The dark green leaves of three papaya cultivars, Khaek Dam (KD), Holland (H), and Thai Local (L), were used in this study. The protein content of the leaves ranged from 25.96 to 32.18%, the fat content ranged from 7.34 to 11.66%, the carbohydrate content ranged from 5.80 to 17.91%, the moisture content ranged from 6.02 to 6.49%, the ash content ranged from 11.23 to 12.40%, and the fiber content ranged from 23.24 to 38.48%. The L cultivar possessed significantly higher protein and carbohydrate contents, whereas the H cultivar had the highest ash content (p < 0.05). The total phenolic content (TPC) ranged from 113.94 to 173.69 mg GAE/g extract, with the KD cultivar having the highest TPC (p < 0.05). Several metabolic compounds such as phenolic compounds (particularly kaempferol, isorhamnetin, quercetin, ferulic acid, isoferulic acid, salicylic acid, sinapic acid, syringic acid, and vanillin), terpenoids (such as eucalyptol), glycosides, and indole were identified. The PLE from the KD cultivar had the highest levels of DPPH• inhibition, metal chelation, reducing power, and antidiabetic activity (p < 0.05), suggesting superior biological activity. All three PLEs reduced the proliferation of RAW 264.7 cells in a dose-dependent manner with low nitric oxide formation. These results indicate that the papaya leaf, particularly from the KD cultivar, could be a promising source of functional food ingredients.
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Affiliation(s)
- Sirinet Chaijan
- Food Technology and Innovation Research Center of Excellence, Department of Food Science and Innovation, School of Agricultural Technology and Food Industry, Walailak University, Nakhon Si Thammarat 80160, Thailand; (S.C.); (M.C.)
| | - Manat Chaijan
- Food Technology and Innovation Research Center of Excellence, Department of Food Science and Innovation, School of Agricultural Technology and Food Industry, Walailak University, Nakhon Si Thammarat 80160, Thailand; (S.C.); (M.C.)
| | - Umaporn Uawisetwathana
- Microarray Research Team, National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Khlong Nueng, Khlong Luang, Pathum Thani 12120, Thailand;
- International Joint Research Center on Food Security (IJC-FOODSEC), 111 Thailand Science Park, Pahonyothin Road, Khong Luang, Pathum Thani 12120, Thailand
- Thailand Metabolomics Society, Bangkok, Thailand
| | - Atikorn Panya
- Food Biotechnology Research Unit, National Center for Genetic Engineering and Biotechnology (BIOTEC), 113 Thailand Science Park, Phaholyothin Rd., Khlong Nueng, Khlong Luang, Pathum Thani 12120, Thailand; (A.P.); (N.P.)
| | - Natthaporn Phonsatta
- Food Biotechnology Research Unit, National Center for Genetic Engineering and Biotechnology (BIOTEC), 113 Thailand Science Park, Phaholyothin Rd., Khlong Nueng, Khlong Luang, Pathum Thani 12120, Thailand; (A.P.); (N.P.)
| | - Kalidas Shetty
- Global Institute of Food Security and International Agriculture (GIFSIA), North Dakota State University, 374 D Loftsgard Hall, 1360 Albrecht Blvd., Fargo, ND 58108, USA;
| | - Worawan Panpipat
- Food Technology and Innovation Research Center of Excellence, Department of Food Science and Innovation, School of Agricultural Technology and Food Industry, Walailak University, Nakhon Si Thammarat 80160, Thailand; (S.C.); (M.C.)
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Banerjee C, Barman R, Darshani P, Pillai M, Ahuja S, Mondal R, Pragadheesh VS, Chakraborty J, Kumar D. α-Viniferin, a dietary phytochemical, inhibits Monoamine oxidase and alleviates Parkinson's disease associated behavioral deficits in a mice model. Neurochem Int 2024; 174:105698. [PMID: 38364939 DOI: 10.1016/j.neuint.2024.105698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/31/2024] [Accepted: 02/13/2024] [Indexed: 02/18/2024]
Abstract
Parkinson's disease (PD) is one of the most prevalent age-related neurodegenerative disorders. Behavioral complexities worsen over time due to progressive dopaminergic (DArgic) neuronal loss at substantia nigra region of brain. Available treatments typically aim to increase dopamine (DA) levels at striatum. DA is degraded by Monoamine oxidase (MAO), thus dietary phytochemicals with MAO inhibitory properties can contribute to elevate DA levels and reduce the ailment. Characterization of naturally occurring dietary MAO inhibitors is inadequate. Based on available knowledge, we selected different classes of molecules and conducted a screening process to assess their potential as MAO inhibitors. The compounds mostly derived from food sources, broadly belonging to triterpenoids (ursane, oleanane and hopane), alkaloid, polyphenolics, monoterpenoids, alkylbenzene, phenylpropanoid and aromatic alcohol classes. Among all the molecules, highest level of MAO inhibition is offered by α-viniferin, a resveratrol trimer. Cell viability, mitochondrial morphology and reactive oxygen species (ROS) generation remained unaltered by 50 μM α-viniferin treatment in-vitro. Toxicity studies in Drosophila showed unchanged gross neuronal morphology, ROS level, motor activity or long-term survival. α-Viniferin inhibited MAO in mice brain and elevated striatal DA levels. PD-related akinesia and cataleptic behavior were attenuated by α-viniferin due to increase in striatal DA. Our study implies that α-viniferin can be used as an adjunct phytotherapeutic agent for mitigating PD-related behavioral deterioration.
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Affiliation(s)
- Chayan Banerjee
- Cell Biology and Physiology Division, CSIR- Indian Institute of Chemical Biology, Kolkata- 700032, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad- 201002, India
| | - Raju Barman
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, Kolkata- 700032, India
| | - Priya Darshani
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, Kolkata- 700032, India
| | - Meghana Pillai
- Cell Biology and Physiology Division, CSIR- Indian Institute of Chemical Biology, Kolkata- 700032, India
| | - Sanchi Ahuja
- Cell Biology and Physiology Division, CSIR- Indian Institute of Chemical Biology, Kolkata- 700032, India
| | - Rupsha Mondal
- Cell Biology and Physiology Division, CSIR- Indian Institute of Chemical Biology, Kolkata- 700032, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad- 201002, India
| | - V S Pragadheesh
- CSIR-Central Institute of Medicinal and Aromatic Plants, Research Centre, Bengaluru- 560065, India
| | - Joy Chakraborty
- Cell Biology and Physiology Division, CSIR- Indian Institute of Chemical Biology, Kolkata- 700032, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad- 201002, India.
| | - Deepak Kumar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad- 201002, India; Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, Kolkata- 700032, India.
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Rakshit S, More A, Gaikwad S, Seniya C, Gade A, Muley VY, Mukherjee A, Kamble K. Role of diosgenin extracted from Helicteres isora L in suppression of HIV-1 replication: An in vitro preclinical study. Heliyon 2024; 10:e24350. [PMID: 38288021 PMCID: PMC10823083 DOI: 10.1016/j.heliyon.2024.e24350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 11/23/2023] [Accepted: 01/08/2024] [Indexed: 01/31/2024] Open
Abstract
Background Diosgenin, an essential sapogenin steroid with significant biological implications, is composed of a hydrophilic sugar moiety intricately linked to a hydrophobic steroid aglycone. While the antiviral properties of diosgenin against numerous RNA viruses have been extensively documented, its potential in combating Human Immunodeficiency Virus infections remains unexplored. Experimental procedure This current investigation presents a comprehensive and systematic analysis of extracts derived from the leaves of Helicteres isora, which are notably enriched with diosgenin. Rigorous methodologies, including established chromatographic techniques and Fourier-transform infrared spectroscopy were employed for the characterization of the active diosgenin compound followed by molecular interaction analyses with the key HIV enzymes and mechanistic validation of HIV inhibition. Key results The inhibitory effects of extracted diosgenin on the replication of HIV-1 were demonstrated using a permissive cellular system, encompassing two distinct subtypes of HIV-1 strains. Computational analyses involving molecular interactions highlighted the substantial occupancy of critical active site pocket residues within the key HIV-1 proteins by diosgenin. Additionally, the mechanistic underpinnings of diosgenin activity in conjunction with standard controls were elucidated through specialized colorimetric assays, evaluating its impact on HIV-1 Reverse Transcriptase and Integrase enzymes. Conclusions To our current state of knowledge, this study represents the inaugural demonstration of the anti-HIV efficacy inherent to diosgenin found in the leaves of Helicteres isora, and can be taken further for drug design and development for the management of HIV infection.
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Affiliation(s)
- Smita Rakshit
- Department of Microbiology, Sant Gadge Baba Amravati University, Amravati, MH, India
| | - Ashwini More
- Division of Virology, ICMR-National AIDS Research Institute, Pune, MH, India
| | - Shraddha Gaikwad
- Division of Virology, ICMR-National AIDS Research Institute, Pune, MH, India
| | - Chandrabhan Seniya
- VIT Bhopal University, School of Biosciences, Engineering and Technology, Bhopal, MP, India
| | - Aniket Gade
- Department of Biotechnology, Sant Gadge Baba Amravati University, Amravati, MH, India
- Department of Biological Science and Biotechnology, Institute of Chemical Technology, Mumbai, MH, India
| | | | - Anupam Mukherjee
- Division of Virology, ICMR-National AIDS Research Institute, Pune, MH, India
| | - Kapil Kamble
- Department of Microbiology, Sant Gadge Baba Amravati University, Amravati, MH, India
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Mutalik SP, Gaikwad SY, Fernandes G, More A, Kulkarni S, Fayaz SMA, Tupally K, Parekh HS, Kulkarni S, Mukherjee A, Mutalik S. Anti-CD4 antibody and dendrimeric peptide based targeted nano-liposomal dual drug formulation for the treatment of HIV infection. Life Sci 2023; 334:122226. [PMID: 37918627 DOI: 10.1016/j.lfs.2023.122226] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 10/20/2023] [Accepted: 10/29/2023] [Indexed: 11/04/2023]
Abstract
AIMS Development and characterization of LAM and DTG loaded liposomes conjugated anti-CD4 antibody and peptide dendrimer (PD2) to improve the therapeutic efficacy and to achieve targeted treatment for HIV infection. MAIN METHODS A 2-level full factorial design was used to optimize the preparation of dual drug loaded liposomes. Optimized dual drug loaded ligand conjugated liposomes were assessed for their cytotoxicity and cell internalization on TZM-bl cells. Anti-HIV efficiency of the dual drug loaded liposomes were screened for their inhibitory potential in TZM-bl cells and the activities were confirmed using Peripheral Blood Mononuclear Cells (PBMCs). KEY FINDINGS The particle size of the optimized dual drug-loaded liposomes was 133.7 ± 4.04 nm, and the spherical morphology of the liposomes was confirmed by TEM analysis. The entrapment efficiency was 34 ± 4.9 % and 54 ± 1.8 % for LAM and DTG, respectively, and a slower in vitro release of LAM and DTG was observed when entrapped into liposomes. The cytotoxicity of the dual drug loaded liposomes was similar to the cytotoxicity of free drug solutions. Conjugation of anti-CD4 antibody and PD2 did not significantly influence the cytotoxicity but it enhanced the uptake of liposomes into the cells. Conjugated dual drug loaded liposomes exhibited better HIV inhibition with lower IC50 values (0.0003 ± 0.0002 μg/mL) compared to their free drug solutions (0.002 ± 0.001 μg/mL). The liposomal formulations have shown similar activities in both screening and confirmatory cell-based assays. SIGNIFICANCE The results demonstrated the cell targeting ability of dual drug loaded liposomes conjugated with anti-CD4 antibody and peptide dendrimer. Conjugated liposomes also improved anti-HIV efficiency of LAM and DTG.
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Affiliation(s)
- Sadhana P Mutalik
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Shraddha Y Gaikwad
- Division of Virology, ICMR-National AIDS Research Institute, Ministry of Health & Family Welfare, Pune 411026, Maharashtra, India
| | - Gasper Fernandes
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Ashwini More
- Division of Virology, ICMR-National AIDS Research Institute, Ministry of Health & Family Welfare, Pune 411026, Maharashtra, India
| | - Sanjay Kulkarni
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Shaik Mohammad Abdul Fayaz
- Department of Biotechnology, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Karnaker Tupally
- School of Pharmacy, Pharmacy Australia Centre of Excellence, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Harendra S Parekh
- School of Pharmacy, Pharmacy Australia Centre of Excellence, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Smita Kulkarni
- Division of Virology, ICMR-National AIDS Research Institute, Ministry of Health & Family Welfare, Pune 411026, Maharashtra, India.
| | - Anupam Mukherjee
- Division of Virology, ICMR-National AIDS Research Institute, Ministry of Health & Family Welfare, Pune 411026, Maharashtra, India.
| | - Srinivas Mutalik
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India.
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Jadaun P, Harshithkumar R, Gaikwad SY, Seniya C, Borse S, Gawai AA, Chavan-Gautam P, Tillu G, Mukherjee A. Withania somnifera extracts induced attenuation of HIV-1: a mechanistic approach to restrict viral infection. Virol J 2023; 20:173. [PMID: 37537596 PMCID: PMC10401819 DOI: 10.1186/s12985-023-02130-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 07/15/2023] [Indexed: 08/05/2023] Open
Abstract
BACKGROUND Several anti-retroviral drugs are available against Human immunodeficiency virus type-1, but have multiple adverse side effects. Hence, there is an incessant compulsion for effectual anti-retroviral agents with minimal or no intricacy. Traditionally, natural products have been the most successful source for the development of new medications. Withania somnifera, also known as Ashwagandha, is the utmost treasured medicinal plant used in Ayurveda, which holds the potential to give adaptogenic, immunomodulatory, and antiviral effects. However, its effect on HIV-1 replication at the cellular level has never been explored. Herein, we focused on the anti-HIV-1 activity and the probable mechanism of action of hydroalcoholic and aqueous extracts of Withania somnifera roots and its phytomolecules. METHODS The cytotoxicity of the extracts was determined through MTT assay, while the in vitro anti-HIV-1 activity was assessed in TZM-bl cells against the HIV-1 strains of X4 and R5 subtypes. Results were confirmed in peripheral blood mononuclear cells, using the HIV-1 p24 antigen assay. Additionally, the mechanism of action was determined through the Time of Addition assay, which was further validated through the series of enzymatic assays, i.e. HIV-1 Integrase, Reverse transcriptase, and Protease assays. To explore the role of the identified active metabolites of Withania somnifera in antiretroviral activity, molecular docking analyses were performed against these key HIV-1 replication enzymes. RESULTS The hydroalcoholic and aqueous extracts of Withania somnifera roots were found to be safer at the sub-cytotoxic concentrations and exhibited their ability to inhibit replication of two primary isolates of HIV-1 through cell-associated and cell-free assays, in dose-dependent kinetics. Several active phytomolecules found in Withania somnifera successfully established hydrogens bonds in the active binding pocket site residues responsible for the catalytic activity of HIV replication and therefore, signifying their role in the attenuation of HIV-1 infection as implied through the in silico molecular docking studies. CONCLUSIONS Our research identified both the hydroalcoholic and aqueous extracts of Withania somnifera roots as potent inhibitors of HIV-1 infection. The in silico analyses also indicated the key components of Withania somnifera with the highest binding affinity against the HIV-1 Integrase by 12-Deoxywithastramonolide and 27-Hydroxywithanone, HIV-1 Protease by Ashwagandhanolide and Withacoagin, and HIV-1 Reverse transcriptase by Ashwagandhanolide and Withanolide B, thereby showing possible mechanisms of HIV-1 extenuation. Overall, this study classified the role of Withania somnifera extracts and their active compounds as potential agents against HIV-1 infection.
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Affiliation(s)
| | - R Harshithkumar
- ICMR-National AIDS Research Institute, Pune, 411026, MH, India
| | | | - Chandrabhan Seniya
- School of Biosciences, Engineering and Technology, VIT Bhopal University, Bhopal, 466114, MP, India
| | - Swapnil Borse
- CCIH-Interdisciplinary School of Health Sciences, AYUSH-Center of Excellence, Savitribai Phule Pune University, Pune, 411007, MH, India
| | - Ashish A Gawai
- Anuradha College of Pharmacy, Buldana, 443201, MH, India
| | - Preeti Chavan-Gautam
- CCIH-Interdisciplinary School of Health Sciences, AYUSH-Center of Excellence, Savitribai Phule Pune University, Pune, 411007, MH, India
| | - Girish Tillu
- CCIH-Interdisciplinary School of Health Sciences, AYUSH-Center of Excellence, Savitribai Phule Pune University, Pune, 411007, MH, India
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