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Al-Harrasi A, Behl T, Upadhyay T, Chigurupati S, Bhatt S, Sehgal A, Bhatia S, Singh S, Sharma N, Vijayabalan S, Palanimuthu VR, Das S, Kaur R, Aleya L, Bungau S. Targeting natural products against SARS-CoV-2. Environ Sci Pollut Res Int 2022; 29:42404-42432. [PMID: 35362883 PMCID: PMC8972763 DOI: 10.1007/s11356-022-19770-2] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 03/13/2022] [Indexed: 06/01/2023]
Abstract
The human coronavirus disease (COVID-19) pandemic is caused by a novel coronavirus; the Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV-2). Natural products, secondary metabolites show positive leads with antiviral and immunotherapy treatments using genomic studies in silico docking. In addition, it includes the action of a mechanism targeting the SARS-CoV-2. In this literature, we aimed to evaluate the antiviral movement of the NT-VRL-1 unique terpene definition to Human coronavirus (HCoV-229E). The effects of 19 hydrolysable tannins on the SARS-CoV-2 were therefore theoretically reviewed and analyzed utilising the molecular operating surroundings for their C-Like protease 3CLpro catalytic dyad residues Angiotensin converting enzyme-2 (MOE 09). Pedunculagin, tercatan, and castalin were detected as interacting strongly with SARS-receptor Cov-2's binding site and catalytic dyad (Cys145 and His41). SARS-CoV-2 methods of subunit S1 (ACE2) inhibit the interaction of the receiver with the s-protein once a drug molecule is coupled to the s-protein and prevent it from infecting the target cells in alkaloids. Our review strongly demonstrates the evidence that natural compounds and their derivatives can be used against the human coronavirus and serves as an area of research for future perspective.
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Affiliation(s)
- Ahmed Al-Harrasi
- Natural & Medical Sciences Research Center, University of Nizwa, Birkat Al Mawz, Oman
| | - Tapan Behl
- Chitkara College of Pharmacy, Chitkara University, Punjab, India.
| | - Tanuj Upadhyay
- Amity Institute of Pharmacy, Amity University, Gwalior, Madhya Pradesh, India
| | - Sridevi Chigurupati
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, Qassim University, Buraidah, Kingdom of Saudi Arabia
| | - Shvetank Bhatt
- Amity Institute of Pharmacy, Amity University, Gwalior, Madhya Pradesh, India
| | - Aayush Sehgal
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Saurabh Bhatia
- Natural & Medical Sciences Research Center, University of Nizwa, Birkat Al Mawz, Oman
- School of Health Science, University of Petroleum and Energy Studies, Dehradun, Uttarakhand, India
| | - Sukhbir Singh
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Neelam Sharma
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Shantini Vijayabalan
- Faculty of Health and Medical Sciences, School of Pharmacy, Taylor's University, Subang Jaya, Kuala Lumpur, Malaysia
| | - Vasanth Raj Palanimuthu
- Department of Pharmaceutical Biotechnology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Ooty, Nilgiris, Tamilnadu, India
| | - Suprava Das
- Department of Pharmacology, Faculty of Medicine, AIMST University, Semeling, Bedong, Kedah, Malaysia
| | - Rajwinder Kaur
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Lotfi Aleya
- Chrono-Environment Laboratory, UMR CNRS 6249, Bourgogne Franche-Comté University, Besançon, France
| | - Simona Bungau
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, Oradea, Romania
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Chigurupati S, Al-Murikhy A, Almahmoud SA, Almoshari Y, Saber Ahmed A, Vijayabalan S, Ghazi Felemban S, Raj Palanimuthu V. Molecular docking of phenolic compounds and screening of antioxidant and antidiabetic potential of Moringa oleifera ethanolic leaves extract from Qassim region, Saudi Arabia. Saudi J Biol Sci 2022; 29:854-859. [PMID: 35197753 PMCID: PMC8848129 DOI: 10.1016/j.sjbs.2021.10.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 08/26/2021] [Accepted: 10/05/2021] [Indexed: 01/03/2023] Open
Abstract
Introduction Oxidative stress is crucial in diabetic pathophysiology, hence the prerequisite of ingesting naturally derived antioxidants as a remedial target. This study investigates the naturally occurring antioxidant and antidiabetic potential of Moringa oleifera ethanolic leaves extract. Methods Moringa oleifera leaves were macerated (MOLE) by using 70% ethanol. Physiochemical and phytochemical examinations of MOLE was assayed using standard methods. The antioxidant activity was analyzed by DPPH (1, 1-diphenyl-2-picrylhydrazil) radical scavenging assay. In vitro antidiabetic was analyzed by pancreatic α-amylase enzyme inhibitory assay. The molecular docking was performed using AutoDock Vina v1.1.2 in PyRx 30.8. Results Ethanolic extraction of MOLE by maceration technique, 14 % yield. Loss on drying, foreign organic matters and total ash value of OLE showed 0.27 w/w, 0.8 % and 19 %, respectively. Phytochemical test on MOLE confirmed starch, carbohydrate, flavonoid, gum, glycoside, saponin, tannin, and phenol presences. The total phenolic and flavonoid contents of MOLE are 260 mg GAE/g and 755 mg RUE/g of extract. MOLE (IC 50 55.6 ± 0.18 µg/mL) showed functional DPPH scavenging assay comparable to ascorbic acid (IC 50 46.71 ± 0.24 µg/mL). In the alpha-amylase inhibitory activity, Acarbose showed an IC 50 value of 19.45 ± 0.26 µg/mL, while MOLE portrayed an IC 50 value of 27.54 ± 0.07 µg/mL. Docking studies revealed that most phenolic compounds found within MOLE have minimum docking scores and high binding affinity against Human pancreatic alpha-amylase. Conclusions The invitro and docking results suggest that MOLE has been a viable natural bioactive source and might be a great potential source for future antidiabetic medicine.
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Affiliation(s)
- Sridevi Chigurupati
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, Qassim University, Buraidah 52571, Saudi Arabia
| | - Atheer Al-Murikhy
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, Qassim University, Buraidah 52571, Saudi Arabia
| | - Suliman A Almahmoud
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, Qassim University, Buraidah 52571, Saudi Arabia
| | - Yosif Almoshari
- Department of Pharmaceutics, College of Pharmacy, Jazan University, Jazan 45142, Saudi Arabia
| | - Amira Saber Ahmed
- Hormones Department, Medical Research and Clinical Studies Institute, National Research Centre, Giza, Egypt
| | - Shantini Vijayabalan
- School of Pharmacy, Faculty of Health and Medical Sciences, Taylor's University, Subang Jaya, Kuala Lumpur 47500, Malaysia
| | - Shatha Ghazi Felemban
- Department of Medical Laboratory Science, Fakeeh College for Medical Sciences, Jeddah, Kingdom of Saudi Arabia
| | - Vasanth Raj Palanimuthu
- Department of Pharmaceutical Biotechnology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Ooty, Nilgiris, Tamilnadu, India
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Bungau SG, Behl T, Singh A, Sehgal A, Singh S, Chigurupati S, Vijayabalan S, Das S, Palanimuthu VR. Targeting Probiotics in Rheumatoid Arthritis. Nutrients 2021; 13:nu13103376. [PMID: 34684377 PMCID: PMC8539185 DOI: 10.3390/nu13103376] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 09/20/2021] [Accepted: 09/23/2021] [Indexed: 01/02/2023] Open
Abstract
Rheumatoid arthritis (RA) is a progressive inflammatory disorder characterized by swollen joints, discomfort, tightness, bone degeneration and frailty. Genetic, agamogenetic and sex-specific variables, Prevotella, diet, oral health and gut microbiota imbalance are all likely causes of the onset or development of RA, perhaps the specific pathways remain unknown. Lactobacillus spp. probiotics are often utilized as relief or dietary supplements to treat bowel diseases, build a strong immune system and sustain the immune system. At present, the action mechanism of Lactobacillus spp. towards RA remains unknown. Therefore, researchers conclude the latest analysis to effectively comprehend the ultimate pathogenicity of rheumatoid arthritis, as well as the functions of probiotics, specifically Lactobacillus casei or Lactobacillus acidophilus, in the treatment of RA in therapeutic and diagnostic reports. RA is a chronic inflammation immunological illness wherein the gut microbiota is affected. Probiotics are organisms that can regulate gut microbiota, which may assist to relieve RA manifestations. Over the last two decades, there has been a surge in the use of probiotics. However, just a few research have considered the effect of probiotic administration on the treatment and prevention of arthritis. Randomized regulated experimental trials have shown that particular probiotics supplement has anti-inflammatory benefits, helps people with RA enhance daily activities and alleviates symptoms. As a result, utilizing probiotic microorganisms as therapeutics could be a potential possibility for arthritis treatment. This review highlights the known data on the therapeutic and preventative effects of probiotics in RA, as well as their interactions.
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Affiliation(s)
- Simona Gabriela Bungau
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, 410028 Oradea, Romania
- Doctoral Scool of Biological and Biomedical Sciences, University of Oradea, 410073 Oradea, Romania
- Correspondence: (S.G.B.); (T.B.)
| | - Tapan Behl
- Chitkara College of Pharmacy, Chitkara University, Rajpura 140401, Punjab, India; (A.S.); (A.S.); (S.S.)
- Correspondence: (S.G.B.); (T.B.)
| | - Anuja Singh
- Chitkara College of Pharmacy, Chitkara University, Rajpura 140401, Punjab, India; (A.S.); (A.S.); (S.S.)
| | - Aayush Sehgal
- Chitkara College of Pharmacy, Chitkara University, Rajpura 140401, Punjab, India; (A.S.); (A.S.); (S.S.)
| | - Sukhbir Singh
- Chitkara College of Pharmacy, Chitkara University, Rajpura 140401, Punjab, India; (A.S.); (A.S.); (S.S.)
| | - Sridevi Chigurupati
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, Qassim University, Buraidah 52571, Saudi Arabia;
| | - Shantini Vijayabalan
- School of Pharmacy, Faculty of Health and Medical Sciences, Taylor’s University, Subang Jaya 47500, Malaysia;
| | - Suprava Das
- Deprtment of Pharmacology, Faculty of Medicine, AIMST University, Semeling, Bedong 08100, Malaysia;
| | - Vasanth Raj Palanimuthu
- Department of Pharmaceutical Biotechnology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Ooty 643001, Tamilnadu, India;
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Rajesh C, Palanimuthu VR, Palanichelvam K. Fatty acids and its derivatives of Acorus calamus Linn. rhizome induce stem cell-mediated cell division in plants and animals. Biocatalysis and Agricultural Biotechnology 2021. [DOI: 10.1016/j.bcab.2021.102153] [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: 11/16/2022]
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Chigurupati S, Vijayabalan S, Palanimuthu VR, Das S, Bhatia S. Bacterial Endophyte Inhabiting Durio zibethinus and its Radical Scavenging and Antidiabetic Potential. IJPER 2021; 55:857-862. [DOI: 10.5530/ijper.55.3.159] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2023]
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Vijayan V, Shalini K, Yugesvaran V, Yee TH, Balakrishnan S, Palanimuthu VR. Effect of Paclitaxel-Loaded PLGA Nanoparticles on MDA-MB Type Cell Lines: Apoptosis and Cytotoxicity Studies. Curr Pharm Des 2019; 24:3366-3375. [PMID: 30179118 DOI: 10.2174/1381612824666180903110301] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [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: 05/21/2018] [Revised: 08/21/2018] [Accepted: 08/25/2018] [Indexed: 11/22/2022]
Abstract
BACKGROUND Triple-Negative Breast Cancer is an aggressive type of breast cancer, which is not treatable by chemotherapy drugs, due to the lack of Estrogen Receptor (ER), Progesterone Receptor (PR) expression and Human Epidermal Growth Factor Receptor 2 (HER2) on the cell surface. OBJECTIVE The aim of this study was to compare the effect of paclitaxel loaded PLGA nanoparticle (PTX-NPs) on the cytotoxicity and apoptosis of the different MDA-MB type of cell lines. METHOD PTX-NPs were prepared by nanoprecipitation method and characterized earlier. The cytotoxicity of PTX-NPs was evaluated by MTT and LDH assay, later apoptosis was calculated by flow cytometry analysis. RESULTS The prepared NP size of 317.5 nm and zetapontial of -12.7 mV showed drug release of 89.1 % at 48 h. MDA-MB-231 type cell showed significant cytotoxicity by MTT method of 47.4 ± 1.2 % at 24 h, 34.6 ± 0.8 % at 48 h and 23.5 ± 0.5 % at 72 h and LDH method of 35.9 ± 1.5 % at 24 h, 25.4 ± 0.6 % at 48 h and 19.8 ± 2.2 % at 72 h with apoptosis of 47.3 ± 0.4 %. CONCLUSION We have found that PTX-NPs showed the cytotoxic effect on all the MDA-MB cancer cell lines and showed potent anticancer activities against MDA-MB-231 cell line via induction of apoptosis.
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Affiliation(s)
- Venugopal Vijayan
- Faculty of Pharmacy, Asian Institute of Medical Science and Technology (AIMST) University, Bedong 08100, Kedah, Malaysia
| | - Krishnan Shalini
- Faculty of Pharmacy, Asian Institute of Medical Science and Technology (AIMST) University, Bedong 08100, Kedah, Malaysia
| | - V Yugesvaran
- Faculty of Pharmacy, Asian Institute of Medical Science and Technology (AIMST) University, Bedong 08100, Kedah, Malaysia
| | - Teh Hui Yee
- Faculty of Pharmacy, Asian Institute of Medical Science and Technology (AIMST) University, Bedong 08100, Kedah, Malaysia
| | - Siventhiran Balakrishnan
- Faculty of Pharmacy, Asian Institute of Medical Science and Technology (AIMST) University, Bedong 08100, Kedah, Malaysia
| | - Vasanth Raj Palanimuthu
- School of Pharmacy, Medical Biology Centre, Queen's University Belfast, Northern Ireland, United Kingdom
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Venugopal V, Krishnan S, Palanimuthu VR, Sankarankutty S, Kalaimani JK, Karupiah S, Kit NS, Hock TT. Anti-EGFR anchored paclitaxel loaded PLGA nanoparticles for the treatment of triple negative breast cancer. In-vitro and in-vivo anticancer activities. PLoS One 2018; 13:e0206109. [PMID: 30408068 PMCID: PMC6224030 DOI: 10.1371/journal.pone.0206109] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Accepted: 10/05/2018] [Indexed: 12/20/2022] Open
Abstract
The aim of the present study is to analyze the viability of anti-EGFR anchored immunonanoparticle (INP) bearing Paclitaxel (PTX) to specifically bind the EGFR protein on the TNBC cells. The NP was prepared by nanoprecipitation and characterized the particle size, charge, entrapment of drug and release of it. The anti-EGFR anchored and the integrity was confirmed by SDS-PAGE. Cytotoxicity and NPs cellular uptake was analyzed with MDA-MB-468 type cancer cells and the EGFR expression was confirmed by PCR, qualitatively and quantitatively. The in-vivo antitumor activity of INP was determined by using athymic mice model and targeting efficiency was measured by calculating the PTX accumulation in the tumor plasma. The prepared INP with the size of 336.3 nm and the charge of -3.48 mV showed sustained drug release upto 48 h. The INP showed significant reduction of cancer cell viability of 10.6% for 48 h with 93 fold higher PTX accumulation in the tumor plasma compared with NPs. Based on these reports, we recommend that anti-EGFR anchored PTX loaded NP may have the ability to target the TNBC cells and improve the therapeutic action and subsidize the side effects of PTX for the treatment of TNBC.
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Affiliation(s)
- Vijayan Venugopal
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Asian Institute of Medical Science and Technology (AIMST) University, Kedah, Malaysia
- * E-mail:
| | - Shalini Krishnan
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Asian Institute of Medical Science and Technology (AIMST) University, Kedah, Malaysia
| | - Vasanth Raj Palanimuthu
- School of Pharmacy, Medical Biology Centre, Queen's University Belfast, Northern Ireland, UK
- China Medical University—Queen's University Belfast joint college (CQC), Shenyang, China
| | - Subin Sankarankutty
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Asian Institute of Medical Science and Technology (AIMST) University, Kedah, Malaysia
| | - Jayaraja Kumar Kalaimani
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Asian Institute of Medical Science and Technology (AIMST) University, Kedah, Malaysia
| | - Sundram Karupiah
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Asian Institute of Medical Science and Technology (AIMST) University, Kedah, Malaysia
| | - Ng Siew Kit
- Advanced Medical & Dental Institute, Universiti Sains Malaysia, Penang, Malaysia
| | - Tang Thean Hock
- Advanced Medical & Dental Institute, Universiti Sains Malaysia, Penang, Malaysia
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Nalloor TJP, Kumar N, Narayanan K, Palanimuthu VR. Long-term exposure to a butter-rich diet induces mild-to-moderate steatosis in Chang liver cells and Swiss albino mice models. J Basic Clin Physiol Pharmacol 2018; 28:257-265. [PMID: 28110314 DOI: 10.1515/jbcpp-2016-0058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 04/14/2016] [Accepted: 10/17/2016] [Indexed: 12/30/2022]
Abstract
BACKGROUND Butter is one of the widely used fats present in the diet. However, there is no satisfactory study available that evaluates the effect of a high-fat diet containing butter as the principal fat on the development of non-alcoholic fatty liver disease (NAFLD). METHODS In the present study, butter was used for the development of steatosis in Chang liver cells in an in vitro study and Swiss albino mice in an in vivo study. In vitro steatosis was established, and butter was compared with oleic acid in Chang liver cells using an oil red O (ORO)-based colorimetric assay. In the in vivo study, a butter-rich special diet was fed for 15 weeks to mice, who showed no significant change in body weight. The expression pattern of phosphatase and tensin homolog (PTEN) and miR-21 was compared by reverse transcriptase-PCR. RESULTS AND CONCLUSIONS Special diet-fed animals showed downregulated PTEN compared to normal diet-fed animals, while levels of miR-21 remained the same. Elevations in biochemical parameters, viz., triglycerides and liver function tests showed symptoms of onset of NAFLD. Histophathological study of livers of test animals confirmed mild-to-moderate degree of NAFLD.
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Affiliation(s)
- Thomas John Philip Nalloor
- Department of Pharmaceutical Biotechnology, Manipal College of Pharmaceutical Sciences, Manipal University, Manipal 576104, Karnataka
| | - Nitesh Kumar
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal University, Manipal 576104, Karnataka
| | - Kasinathan Narayanan
- Department of Pharmaceutical Biotechnology, Manipal College of Pharmaceutical Sciences, Manipal University, Manipal 576104, Karnataka
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Chigurupati S, Selvaraj M, Mani V, Selvarajan KK, Mohammad JI, Kaveti B, Bera H, Palanimuthu VR, Teh LK, Salleh MZ. Identification of novel acetylcholinesterase inhibitors: Indolopyrazoline derivatives and molecular docking studies. Bioorg Chem 2016; 67:9-17. [PMID: 27231830 DOI: 10.1016/j.bioorg.2016.05.002] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Revised: 05/10/2016] [Accepted: 05/12/2016] [Indexed: 01/14/2023]
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Jagani HV, Josyula VR, Hariharapura RC, Palanimuthu VR, Gang SSM. Nanoformulation of siRNA silencing Bcl-2 gene and its implication in cancer therapy. ACTA ACUST UNITED AC 2012; 61:577-86. [PMID: 22164966 DOI: 10.1055/s-0031-1300556] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
The purpose of this research work was to prepare poly(d,l-lactide-co-glycolide) (PLGA) nanoparticles for delivery of siRNA (small interfering RNA) for silencing anti-apoptotic Bcl-2 gene in cancerous cells by using the double emulsion solvent diffusion (DESE) method. Overexpression of Bcl-2 is often seen in a wide variety of human cancers. This prevents the induction of programmed cell death (i.e., apoptosis) in cancerous cells. It is also reported that over-expression of Bcl-2 contributes to resistance in chemotherapy and inhibits the apoptosis induced by chemotherapeutic agents. Agents antagonizing the anti-apoptotic Bcl-2 protein have been shown to restore normal apoptotic processes in cancer cells. RNA interference (RNAi) has emerged as an efficient and selective technique for gene silencing, siRNA mediated gene silencing has been used in a wide variety of disease condition. PLGA nanoparticles were able to completely bind siRNA and to provide protection for siRNA against nuclease degradation. In vitro cell culture studies subsequently revealed that PLGA nanoparticles with adsorbed siRNA could efficiently silence the targeted anti-apoptotic Bcl-2 gene in mammalian cells. In vivo studies results showed that siRNA was effectively delivered through nanoparticles and there was significant decrease in the tumor volume.
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