1
|
Victor PP, Narayanaswamy R, Kadry S, Gurunathan B. Identification of novel inhibitor against human phosphoethanolamine cytidylyltransferase from phytochemicals of Citrus sinensis peel extract by in vitro and in silico approach. Biotechnol Appl Biochem 2023; 70:1565-1581. [PMID: 36824047 DOI: 10.1002/bab.2453] [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: 08/22/2022] [Revised: 02/02/2023] [Accepted: 02/11/2023] [Indexed: 02/25/2023]
Abstract
Kidney stone is a major global menace that demands research on nonsurgical treatment involving biological compounds for the benefit of the patients. Among the biological extracts, citric acid is traditionally used to dissolve kidney stones. The current research focuses on evaluating the in vitro anti-urolithiatic activity and in silico study of ethanolic extract of Citrus sinensis (ECS) peel against c: phosphoethanolamine cytidylyltransferase (PCYT). The diuretic activity was evaluated using in vitro model against the synthesized calcium oxalate crystals and cytotoxicity study in Madin-Darby canine kidney cell lines. The phytochemicals were identified using gas chromatography-mass spectroscopy. The interaction mechanism was studied using computational docking studies to confirm their involvement in the dissolution of calcium oxalate kidney stones. Further molecular properties, drug-likeness, ADME (absorption, distribution, metabolism, and excretion), and toxicity analysis were followed for the ligands using software tools. 5-Hydroxymethylfurfural, 2,4-di-tert-butylphenol, 2-methoxy-4-vinylphenol, 6-octen-1-ol, 3,7-dimethyl-, acetate (citronellyl acetate), 3',5'-dimethoxyacetophenone, and ethyl alpha-d-glucopyranoside showed good binding affinities against PCYT. Moreover, the docking studies showed the ligand 3',5'-dimethoxyacetophenone has the highest binding energy (-6.68 kcal/mol) for human CTP. The present investigation concludes that these compounds of C. sinensis peel extract compounds are responsible as novel inhibitors against human CTP and extend their use in the pharmaceutical drug development process.
Collapse
Affiliation(s)
| | | | - Seifedine Kadry
- Department of Applied Data Science, Noroff University College, Kristiansand, Norway
- Artificial Intelligence Research Center (AIRC), Ajman University, Ajman, United Arab Emirates
- Department of Electrical and Computer Engineering, Lebanese American University, Byblos, Lebanon
| | - Baskar Gurunathan
- Department of Applied Data Science, Noroff University College, Kristiansand, Norway
- Department of Biotechnology, St Joseph's College of Engineering, Chennai, India
| |
Collapse
|
2
|
Qiu Y, Zhai C, Chen L, Liu X, Yeo J. Current Insights on the Diverse Structures and Functions in Bacterial Collagen-like Proteins. ACS Biomater Sci Eng 2021. [PMID: 33871954 DOI: 10.1021/acsbiomaterials.1c00018] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The dearth of knowledge on the diverse structures and functions in bacterial collagen-like proteins is in stark contrast to the deep grasp of structures and functions in mammalian collagen, the ubiquitous triple-helical scleroprotein that plays a central role in tissue architecture, extracellular matrix organization, and signal transduction. To fill and highlight existing gaps due to the general paucity of data on bacterial CLPs, we comprehensively reviewed the latest insight into their functional and structural diversity from multiple perspectives of biology, computational simulations, and materials engineering. The origins and discovery of bacterial CLPs were explored. Their genetic distribution and molecular architecture were analyzed, and their structural and functional diversity in various bacterial genera was examined. The principal roles of computational techniques in understanding bacterial CLPs' structural stability, mechanical properties, and biological functions were also considered. This review serves to drive further interest and development of bacterial CLPs, not only for addressing fundamental biological problems in collagen but also for engineering novel biomaterials. Hence, both biology and materials communities will greatly benefit from intensified research into the diverse structures and functions in bacterial collagen-like proteins.
Collapse
Affiliation(s)
- Yimin Qiu
- National Biopesticide Engineering Technology Research Center, Hubei Biopesticide Engineering Research Center, Hubei Academy of Agricultural Sciences, Biopesticide Branch of Hubei Innovation Centre of Agricultural Science and Technology, Wuhan 430064, PR China.,State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, PR China
| | - Chenxi Zhai
- J2 Lab for Engineering Living Materials, Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, New York 14850, United States
| | - Ling Chen
- National Biopesticide Engineering Technology Research Center, Hubei Biopesticide Engineering Research Center, Hubei Academy of Agricultural Sciences, Biopesticide Branch of Hubei Innovation Centre of Agricultural Science and Technology, Wuhan 430064, PR China
| | - Xiaoyan Liu
- National Biopesticide Engineering Technology Research Center, Hubei Biopesticide Engineering Research Center, Hubei Academy of Agricultural Sciences, Biopesticide Branch of Hubei Innovation Centre of Agricultural Science and Technology, Wuhan 430064, PR China
| | - Jingjie Yeo
- J2 Lab for Engineering Living Materials, Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, New York 14850, United States
| |
Collapse
|
3
|
Kadri HS, Minocheherhomji FP. ADMET analysis of phyto-components of Syzygium cumini seeds and Allium cepa peels. FUTURE JOURNAL OF PHARMACEUTICAL SCIENCES 2020. [DOI: 10.1186/s43094-020-00136-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Abstract
Background
The inedible wastes generated from vegetables and fruits are one of the sources of environmental pollution if not utilized or disposed-off in a proper way. Research is focused on the utilization of these wastes as potential resources rather than undesirable and unwanted products in order to avoid contamination of natural resources. Syzygium cumini (black plum) seeds and Allium cepa (onion) peels were studied. These wastes were fermented and phyto-components of these wastes were determined by gas chromatography mass spectrometry (GCMS). The phyto-components were examined for their pharmacokinetics properties like drug-likeness and toxicity. The open source softwares, DruLiTo and VEGA QSAR, were used to perform the aforementioned study.
Result
GCMS: Twenty phyto-components were identified by performing GCMS analysis of the methanol extracts of fermented Syzygium cumini seeds and fermented Allium cepa peels.
DruLiTo: Four phyto-components each from the methanol extracts of Syzygium cumini seeds and Allium cepa peels followed all the drug-likeness rules.
VEGA QSAR: Six phyto-components of methanol extract of fermented Syzygium cumini seeds were identified as non-mutagenic whereas nine phyto-components of methanol extract of fermented Allium cepa peels were non-mutagenic.
Collectively two phyto-components of methanol extracts of Syzygium cumini seeds and four phyto-components of methanol extracts of Allium cepa possess the pharmacokinetic properties.
Conclusion
The phyto-components predicted to be drug-like and non-mutagenic can be further studied as ligands for bacterial and cancerous targets by the means of in-silico docking approach/techniques. The exploration carries supportive data for future examinations that can lead to their therapeutic use.
Collapse
|
4
|
Naumowicz M, Zając M, Kusaczuk M, Gál M, Kotyńska J. Electrophoretic Light Scattering and Electrochemical Impedance Spectroscopy Studies of Lipid Bilayers Modified by Cinnamic Acid and Its Hydroxyl Derivatives. MEMBRANES 2020; 10:membranes10110343. [PMID: 33203075 PMCID: PMC7697760 DOI: 10.3390/membranes10110343] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 11/10/2020] [Accepted: 11/13/2020] [Indexed: 01/05/2023]
Abstract
Pharmacological efficiency of active compounds is largely determined by their membrane permeability. Thus, identification of drug-membrane interactions seems to be a crucial element determining drug-like properties of chemical agents. Yet, knowledge of this issue is still lacking. Since chemoprevention based on natural compounds such as cinnamic acid (CinA), p-coumaric acid (p-CoA) and ferulic (FA) is becoming a strong trend in modern oncopharmacology, determination of physicochemical properties of these anticancer compounds is highly important. Here, electrophoretic light scattering and impedance spectroscopy were applied to study the effects of these phenolic acids on electrical properties of bilayers formed from 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC), 1,2-diacyl-sn-glycero-3-phospho-l-serine (PS) or DOPC-PS mixture. After phenolic acid treatment, the negative charge of membranes increased in alkaline pH solutions, but not in acidic ones. The impedance data showed elevated values of both the electrical capacitance and the electrical resistance. We concluded that at acidic pH all tested compounds were able to solubilize into the membrane and permeate it. At neutral and alkaline pH, the CinA could be partially inserted into the bilayers, whereas p-CoA and FA could be anchored at the bilayer surface. Our results indicate that the electrochemical methods might be crucial for predicting pharmacological activity and bioavailability of phenolic acids.
Collapse
Affiliation(s)
- Monika Naumowicz
- Department of Physical Chemistry, Faculty of Chemistry, University of Bialystok, K. Ciolkowskiego 1K, 15-245 Bialystok, Poland;
- Correspondence: ; Tel.: +48-8573-880-71
| | - Marcin Zając
- Doctoral School of Exact and Natural Sciences, University of Bialystok, K. Ciolkowskiego 1K, 15-245 Bialystok, Poland;
| | - Magdalena Kusaczuk
- Department of Pharmaceutical Biochemistry, Medical University of Bialystok, Mickiewicza 2A, 15-222 Bialystok, Poland;
| | - Miroslav Gál
- Department of Inorganic Technology, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia;
| | - Joanna Kotyńska
- Department of Physical Chemistry, Faculty of Chemistry, University of Bialystok, K. Ciolkowskiego 1K, 15-245 Bialystok, Poland;
| |
Collapse
|
5
|
Narayanaswamy R, Wai LK, Esa NM. Molecular Docking Analysis of Phytic Acid and 4-hydroxyisoleucine as Cyclooxygenase-2, Microsomal Prostaglandin E Synthase-2, Tyrosinase, Human Neutrophil Elastase, Matrix Metalloproteinase-2 and -9, Xanthine Oxidase, Squalene Synthase, Nitric Oxide Synthase, Human Aldose Reductase, and Lipoxygenase Inhibitors. Pharmacogn Mag 2017; 13:S512-S518. [PMID: 29142407 PMCID: PMC5669090 DOI: 10.4103/pm.pm_195_16] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 07/11/2016] [Indexed: 12/28/2022] Open
Abstract
Background The phytoconstituents phytic acid and 4-hydroxyisoleucine have been reported to posses various biological properties. Objective This prompted us to carry out the docking study on these two ligands (phytic acid & 4-hydroxyisoleucine) against eleven targeted enzymes. Materials and Methods Phytic acid & 4-hydroxyisoleucine were evaluated on the docking behaviour of cyclooxygenase-2 (COX-2), microsomal prostaglandin E synthase-2 (mPGES-2), tyrosinase, human neutrophil elastase (HNE), matrix metalloproteinase (MMP 2 and 9), xanthine oxidase (XO), squalene synthase (SQS), nitric oxide synthase (NOS), human aldose reductase (HAR) and lipoxygenase (LOX) using Discovery Studio Version 3.1 (except for LOX, where Autodock 4.2 tool was used). Results Docking and binding free energy analysis revealed that phytic acid exhibited the maximum binding energy for four target enzymes such as COX-2, mPGES-2, tyrosinase and HNE. Interestingly, we found that 4-hydroxyisoleucine has the potential to dock and bind with all of the eleven targeted enzymes. Conclusion This present study has paved a new insight in understanding 4-hydroxyisoleucine as potential inhibitor against COX-2, mPGES-2, tyrosinase, HNE, MMP 2, MMP 9, XO, SQS, NOS, HAR and LOX. SUMMARY 4-hydroxyisoleucine has the potential to dock and bind with all 11targeted enzymes such as (cyclooxygenase-2 [COX-2], microsomal prostaglandin E synthase-2 [mPGES-2], tyrosinase, human neutrophil elastase [HNE], matrix metalloproteinase [MMP-2 and -9], xanthine oxidase, squalene synthase, nitric oxide synthase, human aldose reductase, and lipoxygenase)Moreover, docking studies and binding free energy calculations revealed that phytic acid exhibited the maximum binding energy for four target enzymes such as COX-2, mPGES-2, tyrosinase, and HNE; however, for other six target enzymes, it fails to dock. Abbreviations used: COX-2: Cyclooxygenase-2, mPGES-2: Microsomal prostaglandin E synthase-2, HNE: Human neutrophil elastase, MMP-2 and -9: Matrix metalloproteinase-2 and -9, XO: Xanthine oxidase, SQS: Squalene synthase, NOS: Nitric oxide synthase, HAR: Human aldose reductase, LOX: Lipoxygenase, ADME: Absorption, distribution, metabolism, and excretion, TOPKAT: Toxicity Prediction by Computer-assisted Technology.
Collapse
Affiliation(s)
- Radhakrishnan Narayanaswamy
- Department of Nutrition and Dietetics, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia.,Bio Waste Management Laboratory, Vel Tech Technology Incubator, Veltech Dr. RR & Dr. SR University, 400 Feet Outer Ring Road, Avadi, Chennai, Tamil Nadu, India
| | - Lam Kok Wai
- Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur, Malaysia
| | - Norhaizan Mohd Esa
- Department of Nutrition and Dietetics, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia.,Laboratory of Molecular Biomedicine, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| |
Collapse
|
6
|
Yao Y, Sun S, Fei F, Wang J, Wang Y, Zhang R, Wu J, Liu L, Liu X, Cui Z, Li Q, Yu M, Dang Y, Wang X. Screening in larval zebrafish reveals tissue-specific distribution of fifteen fluorescent compounds. Dis Model Mech 2017; 10:1155-1164. [PMID: 28754836 PMCID: PMC5611963 DOI: 10.1242/dmm.028811] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Accepted: 07/14/2017] [Indexed: 01/05/2023] Open
Abstract
The zebrafish is a prominent vertebrate model for low-cost in vivo whole organism screening. In our recent screening of the distribution patterns of fluorescent compounds in live zebrafish larvae, fifteen compounds with tissue-specific distributions were identified. Several compounds were observed to accumulate in tissues where they were reported to induce side-effects, and compounds with similar structures tended to be enriched in the same tissues, with minor differences. In particular, we found three novel red fluorescent bone-staining dyes: purpurin, lucidin and 3-hydroxy-morindone; purpurin can effectively label bones in both larval and adult zebrafish, as well as in postnatal mice, without significantly affecting bone mass and density. Moreover, two structurally similar chemotherapeutic compounds, doxorubicin and epirubicin, were observed to have distinct distribution preferences in zebrafish. Epirubicin maintained a relatively higher concentration in the liver, and performed better in inhibiting hepatic hyperplasia caused by the over-expression of krasG12V In total, our study suggests that the transparent zebrafish larvae serve as valuable tools for identifying tissue-specific distributions of fluorescent compounds.
Collapse
Affiliation(s)
- Yuxiao Yao
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Shaoyang Sun
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Fei Fei
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Jingjing Wang
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Youhua Wang
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Ranran Zhang
- Institute of Reproduction and Development, Collaborative Innovation Center of Genetics and Development, Children's Hospital of Fudan University, Shanghai 201102, China
| | - Jing Wu
- Deparment of Pediatric Endocrinology and Inherited Metabolic Diseases, Children's Hospital of Fudan University, Shanghai 201102, China
| | - Lian Liu
- Institute of Reproduction and Development, Collaborative Innovation Center of Genetics and Development, Children's Hospital of Fudan University, Shanghai 201102, China
| | - Xiuyun Liu
- Translational Medical Center for Development and Disease, Shanghai Key Laboratory of Birth Defects, Institute of Pediatrics, Children's Hospital of Fudan University, Shanghai 201102, China
| | - Zhaomeng Cui
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Qiang Li
- Translational Medical Center for Development and Disease, Shanghai Key Laboratory of Birth Defects, Institute of Pediatrics, Children's Hospital of Fudan University, Shanghai 201102, China
| | - Min Yu
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Yongjun Dang
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Xu Wang
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| |
Collapse
|
7
|
Unser S, Holcomb S, Cary R, Sagle L. Collagen-Gold Nanoparticle Conjugates for Versatile Biosensing. SENSORS (BASEL, SWITZERLAND) 2017; 17:E378. [PMID: 28212282 PMCID: PMC5335965 DOI: 10.3390/s17020378] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 02/08/2017] [Accepted: 02/10/2017] [Indexed: 01/08/2023]
Abstract
Integration of noble metal nanoparticles with proteins offers promising potential to create a wide variety of biosensors that possess both improved selectivity and versatility. The multitude of functionalities that proteins offer coupled with the unique optical properties of noble metal nanoparticles can allow for the realization of simple, colorimetric sensors for a significantly larger range of targets. Herein, we integrate the structural protein collagen with 10 nm gold nanoparticles to develop a protein-nanoparticle conjugate which possess the functionality of the protein with the desired colorimetric properties of the nanoparticles. Applying the many interactions that collagen undergoes in the extracellular matrix, we are able to selectively detect both glucose and heparin with the same collagen-nanoparticle conjugate. Glucose is directly detected through the cross-linking of the collagen fibrils, which brings the attached nanoparticles into closer proximity, leading to a red-shift in the LSPR frequency. Conversely, heparin is detected through a competition assay in which heparin-gold nanoparticles are added to solution and compete with heparin in the solution for the binding sites on the collagen fibrils. The collagen-nanoparticle conjugates are shown to detect both glucose and heparin in the physiological range. Lastly, glucose is selectively detected in 50% mouse serum with the collagen-nanoparticle devices possessing a linear range of 3-25 mM, which is also within the physiologically relevant range.
Collapse
Affiliation(s)
- Sarah Unser
- Department of Chemistry, College of Arts and Sciences, University of Cincinnati, 301 West Clifton Court, Cincinnati, OH 45221-0172, USA.
| | - Samuel Holcomb
- Department of Chemistry, College of Arts and Sciences, University of Cincinnati, 301 West Clifton Court, Cincinnati, OH 45221-0172, USA.
| | - ReJeana Cary
- Department of Chemistry, College of Arts and Sciences, University of Cincinnati, 301 West Clifton Court, Cincinnati, OH 45221-0172, USA.
| | - Laura Sagle
- Department of Chemistry, College of Arts and Sciences, University of Cincinnati, 301 West Clifton Court, Cincinnati, OH 45221-0172, USA.
| |
Collapse
|
8
|
Plonska-Brzezinska ME, Bobrowska DM, Sharma A, Rodziewicz P, Tomczyk M, Czyrko J, Brzezinski K. Triple helical collagen-like peptide interactions with selected polyphenolic compounds. RSC Adv 2015. [DOI: 10.1039/c5ra15469c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Because collagen is the most abundant component of connective tissue, it is an excellent biomaterial in numerous medical applications.
Collapse
Affiliation(s)
- M. E. Plonska-Brzezinska
- Institute of Chemistry
- Faculty of Chemistry and Biology
- University of Bialystok
- 15-399 Bialystok
- Poland
| | - D. M. Bobrowska
- Institute of Chemistry
- Faculty of Chemistry and Biology
- University of Bialystok
- 15-399 Bialystok
- Poland
| | - A. Sharma
- Laboratoire de Chimie Moléculaire
- Ecole Polytechnique
- CNRS
- 91128 Palaiseau Cedex
- France
| | - P. Rodziewicz
- Institute of Chemistry
- Faculty of Chemistry and Biology
- University of Bialystok
- 15-399 Bialystok
- Poland
| | - M. Tomczyk
- Department of Pharmacognosy
- Faculty of Pharmacy
- Medical University of Bialystok
- 15-230 Bialystok
- Poland
| | - J. Czyrko
- Institute of Chemistry
- Faculty of Chemistry and Biology
- University of Bialystok
- 15-399 Bialystok
- Poland
| | - K. Brzezinski
- Institute of Chemistry
- Faculty of Chemistry and Biology
- University of Bialystok
- 15-399 Bialystok
- Poland
| |
Collapse
|
9
|
Narayanaswamy R, Shymatak M, Chatterjee S, Wai LK, Arumugam G. Inhibition of Angiogenesis and Nitric Oxide Synthase (NOS), by Embelin & Vilangin Using in vitro, in vivo & in Silico Studies. Adv Pharm Bull 2014; 4:543-8. [PMID: 25671187 DOI: 10.5681/apb.2014.080] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Revised: 07/24/2014] [Accepted: 07/27/2014] [Indexed: 11/17/2022] Open
Abstract
PURPOSE In recent year's anti-angiogenesis agents have been recognized as effective drugs for the treatment of solid tumors, this prompted us to conduct the present study. METHODS The anti-angiogenic activity of dimeric form of embelin (vilangin) was evaluated using endothelial cell (in vitro) and chorioallantoic membrane (CAM) egg yolk angiogenesis model (in vivo) and in addition the docking behaviour of human nitric oxide synthases (NOS) with four different ligands was evaluated along with their putative binding sites using Discovery Studio Version 3.1 (in silico) compared with the parent compound (embelin). RESULTS Vilangin exhibits 50% cytotoxic at 92 ± 1 µg/ml concentration level with reference to ECV 304 endothelial cells. Both vilangin and embelin, showed inhibitory effects on wound healing, single cell migration, nitric oxide production, and endothelial ring formation at 0.1 and 1.0 µg/ml concentration level. Similarly, CAM assay also showed inhibitory effect of vilangin and embelin with respect their reduction in length, size and junctions of blood capillaries compared to untreated egg yolk. Docking studies and binding free energy calculations revealed that vilangin has maximum interaction energy (-74.6 kcal/mol) as compared to the other investigated ligands. CONCLUSION The results suggest that both vilangin and embelin attenuates angiogenesis in similar manner.
Collapse
Affiliation(s)
- Radhakrishnan Narayanaswamy
- Microbiology Division, Central Leather Research Institute (CLRI), Chennai, India. ; Laboratory of Natural Products, Institute of Bioscience (IBS), Universiti Putra Malaysia (UPM), Serdang, Selangor, Malaysia
| | - Majumder Shymatak
- Vascular Biology Laboratory, AU-KBC Research Centre, Anna University, Chennai, India
| | - Suvro Chatterjee
- Vascular Biology Laboratory, AU-KBC Research Centre, Anna University, Chennai, India
| | - Lam Kok Wai
- Faculty of Pharmacy, Universiti Kebangsaan Malaysia (UKM), Jalan Raja Muda Abdul Aziz, Kuala Lumpur, Malaysia
| | - Gnanamani Arumugam
- Microbiology Division, Central Leather Research Institute (CLRI), Chennai, India
| |
Collapse
|
10
|
Poojari R. Embelin – a drug of antiquity: shifting the paradigm towards modern medicine. Expert Opin Investig Drugs 2014; 23:427-44. [DOI: 10.1517/13543784.2014.867016] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
|
11
|
Applications of circular dichroism for structural analysis of gelatin and antimicrobial peptides. Int J Mol Sci 2012; 13:3229-3244. [PMID: 22489150 PMCID: PMC3317711 DOI: 10.3390/ijms13033229] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2012] [Revised: 03/02/2012] [Accepted: 03/05/2012] [Indexed: 01/11/2023] Open
Abstract
Circular dichroism (CD) is a useful technique for monitoring changes in the conformation of antimicrobial peptides or gelatin. In this study, interactions between cationic peptides and gelatin were observed without affecting the triple helical content of the gelatin, which was more strongly affected by anionic surfactant. The peptides did not adopt a secondary structure in the presence of aqueous solution or Tween 80, but a peptide secondary structure formed upon the addition of sodium dodecyl sulfate (SDS). The peptides bound to the phosphate group of lipopolysaccharide (LPS) and displayed an alpha-helical conformation while (KW)4 adopted a folded conformation. Further, the peptides did not specifically interact with the fungal cell wall components of mannan or laminarin. Tryptophan blue shift assay indicated that these peptides interacted with SDS, LPS, and gelatin but not with Tween 80, mannan, or laminarin. The peptides also displayed antibacterial activity against P. aeruginosa without cytotoxicity against HaCaT cells at MIC, except for HPA3NT3-analog peptide. In this study, we used a CD spectroscopic method to demonstrate the feasibility of peptide characterization in numerous environments. The CD method can thus be used as a screening method of gelatin-peptide interactions for use in wound healing applications.
Collapse
|