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Zhou J, Li J, Cheng C, Yao Y, Li Y, Liu H, Wu L. Unraveling the binding behavior of the antifouling biocide 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one with human serum albumin: Multi-spectroscopic, atomic force microscope, computational simulation, and esterase activity. Int J Biol Macromol 2024; 274:133266. [PMID: 38906347 DOI: 10.1016/j.ijbiomac.2024.133266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 06/17/2024] [Accepted: 06/18/2024] [Indexed: 06/23/2024]
Abstract
As a marine antifouling biocide, 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one (DCOIT) exhibited high toxicity to marine organisms. This study investigated the interaction between DCOIT and human serum albumin (HSA) using several spectroscopic techniques combined with computer prediction methods. The UV-vis absorption spectra, Stern-Volmer constant (KSV) and fluorescence resonance energy transfer (FRET) results indicated that DCOIT caused static quenching of HSA fluorescence. The ΔG°, ΔH° and ΔS° values were -31.03 ± 0.17 kJ·mol-1, -133.54 ± 0.88 kJ·mol-1 and -348.46 ± 2.86 J.mol-1·K-1, respectively, suggesting that van der Waals forces and hydrogen bonds governed the spontaneous formation of the complex. Synchronous fluorescence and circular dichroism (CD) spectroscopy observed the burial of Trp residues within HSA and the unfolding of HSA secondary structure induced by DCOIT. Three-dimensional (3D) fluorescence and Atomic Force Microscopy (AFM) further detected DCOIT-induced loosening of HSA peptide chain structure. Site displacement experiments indicated that DCOIT binding at site I of HSA. Computational predictions indicated that hydrophobic interactions were also essential in the complex. The increased RMSD, Rg, SASA, and RMSF confirmed that DCOIT weakened the stability and compactness of HSA, rendering residues more flexible. Lastly, esterase activity assays demonstrated that DCOIT inhibited esterase activity and interfered with the human detoxification process.
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Affiliation(s)
- Junqiao Zhou
- Key Laboratory of Resources Conversion and Pollution Control of the State Ethnic Affairs Commission, College of Resources and Environmental Science, South-Central Minzu University, Wuhan 430074, PR China
| | - Jiayin Li
- Key Laboratory of Resources Conversion and Pollution Control of the State Ethnic Affairs Commission, College of Resources and Environmental Science, South-Central Minzu University, Wuhan 430074, PR China
| | - Cong Cheng
- Key Laboratory of Resources Conversion and Pollution Control of the State Ethnic Affairs Commission, College of Resources and Environmental Science, South-Central Minzu University, Wuhan 430074, PR China
| | - YuJuan Yao
- Key Laboratory of Resources Conversion and Pollution Control of the State Ethnic Affairs Commission, College of Resources and Environmental Science, South-Central Minzu University, Wuhan 430074, PR China
| | - Yu Li
- Key Laboratory of Resources Conversion and Pollution Control of the State Ethnic Affairs Commission, College of Resources and Environmental Science, South-Central Minzu University, Wuhan 430074, PR China
| | - Hao Liu
- Liyuan Hospital of Tongji Medical College of Huazhong University of Science and Technology, Wuhan 430077, PR China
| | - Laiyan Wu
- Key Laboratory of Resources Conversion and Pollution Control of the State Ethnic Affairs Commission, College of Resources and Environmental Science, South-Central Minzu University, Wuhan 430074, PR China.
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Khan MS, Al-Twaijry N, Alotaibi FN, Alenad AM, Alokail MS, Arshad M, Al Kheraif AA, Elrobh M, Shaik GM. Unveiling the Detrimental Effect of Glipizide on Structure and Function of Catalase: Spectroscopic, Thermodynamics and Simulation Studies. J Fluoresc 2024:10.1007/s10895-024-03792-9. [PMID: 38913089 DOI: 10.1007/s10895-024-03792-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Accepted: 06/06/2024] [Indexed: 06/25/2024]
Abstract
Free radicals, products of oxidative processes, induce cellular damage linked to diseases like Parkinson's and diabetes due to increased reactive oxygen species (ROS) levels. Catalase, crucial for scavenging ROS, emerges as a therapeutic agent against ailments including atherosclerosis and tumor progression. Its primary function involves breaking down hydrogen peroxide into water and oxygen. Research on catalase-drug interactions reveals structural changes under specific conditions, affecting its activity and cellular antioxidant balance, highlighting its pivotal role in defending against oxidative stress-related diseases. Hence, targeting catalase is considered an effective strategy for controlling ROS-induced cellular damage. This study investigates the interaction between bovine liver catalase and glipizide using spectroscopic and computational methods. It also explores glipizide's effect on catalase activity. More than 20% inhibition of catalase enzymatic activity was recorded in the presence of 50 µM glipizide. To investigate the inhibition of catalase activity by glipizide, we performed a series of binding studies. Glipizide was found to form a complex with catalase with moderate affinity and binding constant in the range of 3.822 to 5.063 × 104 M-1. The binding was spontaneous and entropically favourable. The α-helical content of catalase increased from 24.04 to 29.53% upon glipizide complexation. Glipizide binding does not alter the local environment surrounding the tyrosine residues while a notable decrease in polarity around the tryptophan residues of catalase was recorded. Glipizide interacted with numerous active site residues of catalase including His361, Tyr357, Ala332, Asn147, Arg71, and Thr360. Molecular simulations revealed that the catalase-glipizide complex remained relatively stable in an aqueous environment. The binding of glipizide had a negligible effect on the secondary structure of catalase, and hydrogen bonds persisted consistently throughout the trajectory. These results could aid in the development of glipizide as a potent catalase inhibitor, potentially reducing the impact of reactive oxygen species (ROS) in the human body.
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Affiliation(s)
- Mohd Shahnawaz Khan
- Department of Biochemistry, College of Science, King Saud University, 11451, Riyadh, Saudi Arabia.
| | - Nojood Al-Twaijry
- Department of Biochemistry, College of Science, King Saud University, 11451, Riyadh, Saudi Arabia
| | - Fai N Alotaibi
- Department of Biochemistry, College of Science, King Saud University, 11451, Riyadh, Saudi Arabia
| | - Amal M Alenad
- Department of Biochemistry, College of Science, King Saud University, 11451, Riyadh, Saudi Arabia
| | - Majed S Alokail
- Department of Biochemistry, College of Science, King Saud University, 11451, Riyadh, Saudi Arabia
| | - Mohammed Arshad
- College of Applied Medical Science, King Saud University, Riyadh, Saudi Arabia
| | | | - Mohamed Elrobh
- Department of Biochemistry, College of Science, King Saud University, 11451, Riyadh, Saudi Arabia
| | - Gouse M Shaik
- Department of Biochemistry, College of Science, King Saud University, 11451, Riyadh, Saudi Arabia
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Afzal M, Qais FA, Abduh NA, Christy M, Ayub R, Alarifi A. Identification of bioactive compounds of Zanthoxylum armatum as potential inhibitor of pyruvate kinase M2 (PKM2): Computational and virtual screening approaches. Heliyon 2024; 10:e27361. [PMID: 38495183 PMCID: PMC10943388 DOI: 10.1016/j.heliyon.2024.e27361] [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: 09/30/2023] [Revised: 02/26/2024] [Accepted: 02/28/2024] [Indexed: 03/19/2024] Open
Abstract
PKM2 (Pyruvate kinase M2) is the isoform of pyruvate kinase which is known to catalyse the last step of glycolysis that is responsible for energy production. This specific isoform is known to be highly expressed in certain cancerous conditions. Considering the role of this protein in various cancer conditions, we used PKM2 as a target protein to identify the potential compounds against this target. In this study, we have examined 96 compounds of Zanthoxylum armatum using an array of computational and in silico tools. The compounds were assessed for toxicity then their anticancer potential was predicted. The virtual screening was done with molecular docking followed by a detailed examination using molecular dynamics simulation. The majority of the compounds showed a higher probability of being antineoplastic. Based on toxicity, predicted anticancer potential, binding affinity, and binding site, three compounds (nevadensin, asarinin, and kaempferol) were selected as hit compounds. The binding energy of these compounds with PKM2 ranged from -7.7 to -8.3 kcal/mol and all hit compounds interact at the active site of the protein. The selected hit compounds formed a stable complex with PKM2 when simulated under physiological conditions. The dynamic analysis showed that these compounds remained attached to the active site till the completion of molecular simulation. MM-PBSA analysis showed that nevadensin exhibited a higher affinity towards PKM2 compared to asarinin and kaempferol. These compounds need to be assessed properties in vivo and in vitro to validate their efficacy.
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Affiliation(s)
- Mohd Afzal
- Department of Chemistry, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Faizan Abul Qais
- Department of Agricultural Microbiology, Faculty of Agricultural Sciences, Aligarh Muslim University, Aligarh, UP, 202002, India
| | - Naaser A.Y. Abduh
- Department of Chemistry, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Maria Christy
- Department of Energy Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, South Korea
| | - Rashid Ayub
- Department of Science Technology and Innovation, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Abdullah Alarifi
- Department of Chemistry, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
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Fatima S, Hussain I, Ahmed S, Afaq MA, Tabish M. Insight into the interaction of isochroman with bovine serum albumin: extensive experimental and computational investigations. J Biomol Struct Dyn 2024:1-15. [PMID: 38319026 DOI: 10.1080/07391102.2024.2310203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 01/19/2024] [Indexed: 02/07/2024]
Abstract
The way therapeutic compounds interact with serum protein provides valuable information on their pharmacokinetics, toxicity, effectiveness, and even their structural-related information. Isochroman (IC) is a phytochemical compound obtained from the leaves of Olea europea plant. The derivatives of IC have various pharmacological properties including antidepressants, antihistamines, antiinflammation, anticonvulsants, appetite depressants, etc. The binding of small molecules to bovine serum albumin (BSA) is useful to ensure their efficacy. Thus, in this study, we have found out the binding mode of IC with BSA using several spectroscopic and in silico studies. UV and fluorescence spectroscopy suggested the complex formation between IC and BSA with a binding constant of 103 M-1. IC resulted in fluorescence quenching in BSA through static mechanism. The microenvironmental and conformational changes in BSA were confirmed using synchronous and three-dimensional studies. Site marker experiment revealed the IC binding in site-III of BSA. The influence of vitamins, metals and β-cyclodextrin (β-CD) on binding constant of IC-BSA complex was also examined. Circular dichroism spectra showed that α-helical of BSA decreased upon interaction with IC. Computational and experimental results were complimentary with one another and assisted in determining the binding sites, nature of bonds and amino acids included in the IC-BSA complex formation.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Sana Fatima
- Department of Biochemistry, Faculty of Life Science, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Irfan Hussain
- Department of Biochemistry, Faculty of Life Science, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Shahbaz Ahmed
- Department of Biochemistry, Faculty of Life Science, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Mohd Abuzar Afaq
- Department of Biochemistry, Faculty of Life Science, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Mohammad Tabish
- Department of Biochemistry, Faculty of Life Science, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
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Qais FA, Parveen N, Afzal M, Furkan M, Khan RH. Preventing amyloid-β oligomerization and aggregation with berberine: Investigating the mechanism of action through computational methods. Int J Biol Macromol 2024; 258:128900. [PMID: 38128802 DOI: 10.1016/j.ijbiomac.2023.128900] [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: 11/04/2023] [Revised: 12/13/2023] [Accepted: 12/18/2023] [Indexed: 12/23/2023]
Abstract
Neurological disorders (NDs) have become a major cause of both cognitive and physical disabilities worldwide. In NDs, misfolded proteins tend to adopt a β-sheet-rich fibrillar structure called amyloid. Amyloid beta (Aβ) plays a crucial role in the nervous system. The misfolding and aggregation of Aβ are primary factors in the progression of Alzheimer's disease (AD). Inhibiting the oligomerization and aggregation of Aβ is considered as an effective strategy against NDs. While it is known that berberine analogs exhibit anti-Aβ aggregation properties, the precise mechanism of action remains unclear. In this study, we have employed computational approaches to unravel the possible mechanism by which berberine combats Aβ aggregation. The introduction of berberine was observed to delay the equilibrium of Aβ16-21 oligomerization. Initially, within the first 10 ns of simulation, β-sheets content was 12.89 % and gradually increased to 22.19 % within the first 20 ns. This upward trend continued, reaching 32.80 %. However, berberine substantially reduced the formation of β-sheets to 1.36 %. These findings decipher the potency of berberine against Aβ16-21 oligomerization, a crucial step for β-sheet formation. Additionally, a remarkable decrease in total number of hydrogen bonds was found in the presence of berberine. Berberine also led to a slight reduction in the flexibility of Aβ16-21, which may be due to the formation of a more stable structures. This study offers valuable insights at the mechanistic level, which could prove beneficial in the development of new drugs to combat NDs.
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Affiliation(s)
- Faizan Abul Qais
- Department of Agricultural Microbiology, Faculty of Agricultural Sciences, Aligarh Muslim University, Aligarh 202002, India
| | - Nagma Parveen
- Department of Zoology, Saifia College, Barkatullah University, Bhopal, Madhya Pradesh, India
| | - Mohd Afzal
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohammad Furkan
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, UP, India
| | - Rizwan Hasan Khan
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, UP, India.
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Ahmed S, Tabish M. Phytocompounds screening of Nigella sativa in terms of human cancer by targeting sphingosine kinase-1 and pyruvate kinase-M2: a study based on in silico analysis. J Biomol Struct Dyn 2024; 42:1544-1558. [PMID: 37194426 DOI: 10.1080/07391102.2023.2212773] [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: 11/08/2022] [Accepted: 04/03/2023] [Indexed: 05/18/2023]
Abstract
Cancer is a multifactorial disease that can cause morbidity and mortality in humans. An altered gene expression in cancer leads to a change in the overall activity of the human cell. Overexpression of cancer protein may give a piece of wide information about the specific type of tumor. Sphingosine kinase-1 (SK-1) is a metabolic enzyme that is mainly overexpressed in several types of cancer and other inflammatory diseases. Similarly, pyruvate kinase-M2 (PK-M2) is an important oncogenic ATP-producing glycolytic enzyme that is upregulated in most cancer cells. The phytocompound of medicinal plants such as Nigella sativa contains a variety of micronutrients that inhibit the proliferation and activity of tumor cells. In this study, the role of phytocompounds in combating cancer was studied against the model kinase proteins, that is, PK-M2 and SK-1. In silico tool like the PASS-Way2Drug server was used to predict the anticancer properties of phytocompounds. Moreover, the CLC-Pred web server provided the cytotoxicity prediction of chemical compounds against several human cancer cell lines. The pharmacokinetics and toxicity profiles were predicted by the SwissADME and pkCSM software. The binding energies were obtained by molecular docking to confirm the intermolecular interaction of selected phytocompounds with proteins. Consequently, molecular dynamics (MD) simulation confirmed the stability, conformational changes, and dynamic behavior of the kinase proteins complexed with the lead phytocompounds, that is, epicatechin, apigenin, and kaempferol.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Shahbaz Ahmed
- Department of Biochemistry, Faculty of Life Sciences, A.M.U, Aligarh, Uttar Pradesh, India
| | - Mohammad Tabish
- Department of Biochemistry, Faculty of Life Sciences, A.M.U, Aligarh, Uttar Pradesh, India
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Chikkanayakanahalli Mukunda D, Rodrigues J, Chandra S, Mazumder N, Vitkin A, Kishore Mahato K. Protein classification by autofluorescence spectral shape analysis using machine learning. Talanta 2024; 267:125167. [PMID: 37714041 DOI: 10.1016/j.talanta.2023.125167] [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: 05/27/2023] [Revised: 08/23/2023] [Accepted: 09/04/2023] [Indexed: 09/17/2023]
Abstract
Depending on the relative numbers and spatial arrangement of Tryptophan (Trp; W) and Tyrosine (Tyr; Y) residues, different proteins produce distinct autofluorescence (AF) spectral shapes when excited at ∼280 nm. Yet, considering the vast number and heterogeneous forms in nature, visual analysis and precise identification of proteins based on their AF spectra is challenging and further compounded in cases when different proteins produce substantially similar AF spectral shapes. There is, thus, a serious need to develop a methodology to address this problem. The current study proposes a practical technology to quickly identify proteins using machine learning (ML) algorithms based on their AF spectra. Specifically, AF spectra of fifteen different standard proteins of varying origin with distinct structural and Trp/Tyr compositions were recorded; based on the spectral features selected by the Minimum-Redundancy-Maximum-Relevance (mRMR) algorithm, a multiclass Support Vector Machine (SVM) learning model with Radial Basis Function (RBF), Polynomial, and Linear kernels classified the proteins with high accuracy of 99.06%, 99.03%, and 98.29% respectively. Since protein identification is the key to understand biological functions and disease diagnosis, the proposed methodology could offer a viable alternative to and improve the existing protein identification techniques.
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Affiliation(s)
| | - Jackson Rodrigues
- Department of Biophysics, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
| | - Subhash Chandra
- Department of Biophysics, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
| | - Nirmal Mazumder
- Department of Biophysics, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
| | - Alex Vitkin
- Department of Medical Biophysics, University of Toronto, Toronto, Ontario, M5G 1L7, Canada
| | - Krishna Kishore Mahato
- Department of Biophysics, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India.
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Riaz S, Siddiqui S, Abul Qais F, Mateen S, Moin S. Inhibitory effect of baicalein against glycation in HSA: an in vitro approach. J Biomol Struct Dyn 2024; 42:935-947. [PMID: 37098813 DOI: 10.1080/07391102.2023.2201856] [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: 01/25/2023] [Accepted: 03/22/2023] [Indexed: 04/27/2023]
Abstract
Hyperglycaemia accelerates the aging process significantly. Diabetes problems can be mitigated by inhibiting glycation. To learn more about glycation and antiglycation mediated by methyl glyoxal and baicalein, we studied human serum albumin as a model protein. A Methylglyoxal (MGO) incubation period of seven days at 37 degrees Celsius induced glycation of Human Serum Albumin.s Hyperchromicity, decreased tryptophan and intrinsic fluorescence, increased AGE-specific fluorescence, and reduced mobility were all seen in glycated human serum albumin (MGO-HSA) in sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE). Fourier transform infrared spectroscopy (FT-IR) and then far ultraviolet dichroism were used to detect secondary and tertiary structural perturbations (CD). The Congo red assay (CR), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) all verified the presence of amyloid-like clumps. Structure (carbonyl groups on ketoamine moieties) (CO), physiological problems including diabetes mellitus, and cardiovascular disease, etc. are linked to the structural and functional changes in glycated HSA, as proven by these studies.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Sana Riaz
- Department of Biochemistry, Jawaharlal Nehru Medical College, Faculty of Medicine, Aligarh Muslim University, Aligarh, India
| | - Sana Siddiqui
- Department of Biochemistry, Jawaharlal Nehru Medical College, Faculty of Medicine, Aligarh Muslim University, Aligarh, India
| | - Faizan Abul Qais
- Department of Agricultural Microbiology, Faculty of Agricultural Sciences, Aligarh Muslim University, Aligarh, India
| | - Somaiya Mateen
- Department of Biochemistry, Jawaharlal Nehru Medical College, Faculty of Medicine, Aligarh Muslim University, Aligarh, India
| | - Shagufta Moin
- Department of Biochemistry, Jawaharlal Nehru Medical College, Faculty of Medicine, Aligarh Muslim University, Aligarh, India
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Berdowska I, Matusiewicz M, Fecka I. Methylglyoxal in Cardiometabolic Disorders: Routes Leading to Pathology Counterbalanced by Treatment Strategies. Molecules 2023; 28:7742. [PMID: 38067472 PMCID: PMC10708463 DOI: 10.3390/molecules28237742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 11/13/2023] [Accepted: 11/21/2023] [Indexed: 12/18/2023] Open
Abstract
Methylglyoxal (MGO) is the major compound belonging to reactive carbonyl species (RCS) responsible for the generation of advanced glycation end products (AGEs). Its upregulation, followed by deleterious effects at the cellular and systemic levels, is associated with metabolic disturbances (hyperglycemia/hyperinsulinemia/insulin resistance/hyperlipidemia/inflammatory processes/carbonyl stress/oxidative stress/hypoxia). Therefore, it is implicated in a variety of disorders, including metabolic syndrome, diabetes mellitus, and cardiovascular diseases. In this review, an interplay between pathways leading to MGO generation and scavenging is addressed in regard to this system's impairment in pathology. The issues associated with mechanistic MGO involvement in pathological processes, as well as the discussion on its possible causative role in cardiometabolic diseases, are enclosed. Finally, the main strategies aimed at MGO and its AGEs downregulation with respect to cardiometabolic disorders treatment are addressed. Potential glycation inhibitors and MGO scavengers are discussed, as well as the mechanisms of their action.
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Affiliation(s)
- Izabela Berdowska
- Department of Medical Biochemistry, Wroclaw Medical University, 50-368 Wroclaw, Poland;
| | | | - Izabela Fecka
- Department of Pharmacognosy and Herbal Medicines, Wroclaw Medical University, 50-556 Wroclaw, Poland
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Ahmed S, Nadeem M, Hussain I, Fatima S, Anwar S, Rizvi MA, Hassan MI, Tabish M. Preparation of nanoformulation of 5-fluorouracil to improve anticancer efficacy: integrated spectroscopic, docking, and MD simulation approaches. J Biomol Struct Dyn 2023:1-14. [PMID: 37850451 DOI: 10.1080/07391102.2023.2270704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 10/08/2023] [Indexed: 10/19/2023]
Abstract
Nanoformulations (NFs) can be used as a novel drug delivery system to treat all cancer types. One of the major drawbacks of conventional anticancer drugs is that they have poor specificity and higher toxicity towards normal cells. 5-fluorouracil (5-FU) is a well-studied anticancer drug that has a significant role in various cancers, specifically colorectal cancer therapy. This study was performed to determine the functional groups, particle size, surface charge, heterogeneity, and stability of the NF. The NFs of 5-FU were prepared through the ultrasonication technique by increasing the surfactant (Tween-80) concentrations. Among all three NFs, nanoformulated 5-FU (n5-FU) showed the most effective particle size (10.72 nm) with a zeta potential of (-4.57 mV). The cytotoxicity and apoptosis profiles confirmed that n5-FU enhanced the anticancer effect of the pure drug in HCT-116 cells, as evident from MTT assay, fluorescence microscopy, and FACS analysis. In HCT-116 cells, the IC50 values of pure and n5-FU were obtained as 41.3 μM and 18.8 μM, respectively, indicating that n5-FU was more effective against the cancer cell line. The cellular uptake study was performed to check the intake of NF in cancer cells. However, the microtubule-affinity regulating kinase-4 (MARK-4), a cancer-target protein, was purified to study the inhibition and interaction studies. The inhibition assay confirmed the inhibitory potential of 5-FU against MARK-4 protein. the multi-spectroscopic, molecular docking and MD simulation studies were performed to analyse the conformational changes, binding studies, intermolecular interactions, and stability of MARK-4 protein upon binding 5-FU. This demonstrates that NF can enhance the effectiveness of anticancer drugs.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Shahbaz Ahmed
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, UP, India
| | - Masood Nadeem
- Department of Biosciences, Jamia Milia Islamia, New Delhi, India
| | - Irfan Hussain
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, UP, India
| | - Sana Fatima
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, UP, India
| | - Saleha Anwar
- Center for Interdisciplinary Research in Basic Sciences, Jamia Milia Islamia, New Delhi, India
| | | | - Md Imtaiyaz Hassan
- Center for Interdisciplinary Research in Basic Sciences, Jamia Milia Islamia, New Delhi, India
| | - Mohammad Tabish
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, UP, India
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11
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Hashmi MA, Malik A, Abul Qais F, Khan MA, Alhumaydhi FA, Younus H. An insight into the binding and inhibition of eye ζ-crystallin by the environmental toxin arsenic: implications in eye diseases. J Biomol Struct Dyn 2023; 41:9134-9142. [PMID: 36326451 DOI: 10.1080/07391102.2022.2141891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 10/21/2022] [Indexed: 11/05/2022]
Abstract
Arsenic contamination is highly prevalent in food chain, soil and groundwater. Continuous exposure to elevated levels of this environmental toxin is a global concern. Studies have reported enriched accumulation of arsenic in the eyes compared to other body organs leading to various eye diseases. Here, the impact of arsenic exposure on the enzymatic eye ζ-crystallin has been investigated. Arsenic inhibited the activity of the enzyme with an IC50 value of 35 µM. It decreased the free thiol group content of ζ-crystallin due to protein oxidation. The binding of arsenic with ζ-crystallin was explored using biophysical and computational tools. The enzyme undergoes some conformational changes upon arsenic binding. The binding constant (Kb) was determined to be 1.2 × 102 M-1. Thermodynamic parameters were determined by isothermal titration calorimetry (ITC) and the binding energy (ΔG) was calculated to be -3.52 kcal/mol. Molecular docking studies helped in visualizing the amino acid residues (especially Cys165) of the enzyme involved in binding with arsenic. Continuous arsenic exposure is expected to increase the eye crystallin-related abnormalities, elevating the risk of cataractogenesis. Therefore, proper measures need to be taken by authorities to control the contamination of arsenic in the environment and groundwater.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Md Amiruddin Hashmi
- Enzymology Laboratory, Interdisciplinary Biotechnology Unit, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, India
| | - Ajamaluddin Malik
- Department of Biochemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Faizan Abul Qais
- Department of Agricultural Microbiology, Faculty of Agricultural Science, Aligarh Muslim University, Aligarh, India
| | - Masood Alam Khan
- Department of Basic Health Sciences, College of Applied Medical Sciences, Qassim University, Buraydah, Saudi Arabia
| | - Fahad Abdulrahman Alhumaydhi
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah, Saudi Arabia
| | - Hina Younus
- Enzymology Laboratory, Interdisciplinary Biotechnology Unit, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, India
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12
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Siddiqui S, Riaz S, Ahmad R, Wani MJ, Hashmi MA, Zofair SFF, Mateen S, Moin S. Synergistic effect of chlorogenic acid and vitamin D3 (cholecalciferol) on in-vitro glycation may assist in prevention of polycystic ovarian syndrome (PCOS) progression - A biophysical, biochemical and in-silico study. Int J Biol Macromol 2023; 245:125497. [PMID: 37369258 DOI: 10.1016/j.ijbiomac.2023.125497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 06/13/2023] [Accepted: 06/19/2023] [Indexed: 06/29/2023]
Abstract
Advanced glycation end products (AGEs) are formed through non-enzymatic glycation, that have been linked to various diseases, including polycystic ovarian syndrome (PCOS) playing a critical role leading to secondary comorbidities such as diabetes-related problems, cardiovascular complications, infertility, etc. As a result, there has been a lot of research into AGE-inhibiting phytochemicals for the remediation and obstruct progression of glycation-related illnesses. The current study is based on in-vitro protein model, in which human serum albumin have been used to investigate the cumulative effect of chlorogenic acid (CGA) and cholecalciferol (vitamin D) on glycation and evaluate their inhibitory impact on AGEs production in the presence of methylglyoxal. Through the application of several biochemical and biophysical techniques, we were able to examine the synergistic impact of both the compounds on albumin structure and its biochemical properties during different stages of glycation. According to Nitro-blue tetrazolium assay results indicate that CGA and vitamin D inhibited fructosamine (early glycation product) production. Moreover, free thiol and lysine residues were significantly increased whereas protein carbonyl levels were significantly decreased. Additive effect of CGA and vitamin D were associated with reduced AGEs fluorescence and increased tryptophan and tyrosine fluorescence. Amadori-albumin after treatment showed some evidence of regaining its alpha-helicity as measured by far-UV CD spectrum. Furthermore, secondary structural alterations were confirmed by Fourier transform infrared spectroscopy (FTIR). ANS (1-anilinonaphthalene-8-sulfonic acid) fluorescence spectra also displayed less revelation of hydrophobic patches. Bilirubin binding capacity was also restored which showed functional recovery of HSA. The electrophoretic mobility was also restored which is portrayed by SDS-PAGE. Additionally, to predict the anti-aggregation potential of CGA and vitamin D, congo red assay and ThT fluorescence was performed which reveal low aggregate formation after treatment. These results corroborated with scanning electron microscopy and confocal microscopy. Docking and simulation results also reveal spontaneous binding of CGA and vitamin D on subdomain IIA of HSA favoring their binding thermodynamically. All the findings suggest that chlorogenic acid and cholecalciferol given in combination might help in prevention of PCOS progression and its related complications.
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Affiliation(s)
- Sana Siddiqui
- Department of Biochemistry, J.N.M.C., Faculty of Medicine, Aligarh Muslim University, Aligarh 202002, U.P., India
| | - Sana Riaz
- Department of Biochemistry, J.N.M.C., Faculty of Medicine, Aligarh Muslim University, Aligarh 202002, U.P., India
| | - Rizwan Ahmad
- Department of Biochemistry, J.N.M.C., Faculty of Medicine, Aligarh Muslim University, Aligarh 202002, U.P., India
| | - Mohd Junaid Wani
- Department of Biochemistry, J.N.M.C., Faculty of Medicine, Aligarh Muslim University, Aligarh 202002, U.P., India
| | - Md Amiruddin Hashmi
- Interdisciplinary Biotechnology Unit, Faculty of Life Science, Aligarh Muslim University, Aligarh 202002, U.P., India
| | - Syeda Fauzia Farheen Zofair
- Interdisciplinary Biotechnology Unit, Faculty of Life Science, Aligarh Muslim University, Aligarh 202002, U.P., India
| | - Somaiya Mateen
- Department of Biochemistry, J.N.M.C., Faculty of Medicine, Aligarh Muslim University, Aligarh 202002, U.P., India
| | - Shagufta Moin
- Department of Biochemistry, J.N.M.C., Faculty of Medicine, Aligarh Muslim University, Aligarh 202002, U.P., India.
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13
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Naseem N, Ahmad MF, Malik S, Khan RH, Siddiqui WA. The potential of esculin in ameliorating Type-2 diabetes mellitus induced neuropathy in Wistar rats and probing its inhibitory mechanism of insulin aggregation. Int J Biol Macromol 2023; 242:124760. [PMID: 37156314 DOI: 10.1016/j.ijbiomac.2023.124760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 05/01/2023] [Accepted: 05/02/2023] [Indexed: 05/10/2023]
Abstract
Diabetic neuropathy encompasses multiple pathological disturbances, many of which coincide with the pathophysiological mechanisms of neurodegenerative disorders. In the present study, various biophysical techniques like Rayleigh light scattering assay, Thioflavin T assay, far-UV Circular Dichroism spectroscopy, Transmission electron microscopy have unveiled the anti-fibrillatory effect of esculin upon human insulin fibrillation. MTT cytotoxicity assay demonstrated the biocompatibility of esculin and in-vivo studies such as behavioral tests like hot plate test, tail immersion test, acetone drop test, plantar test were performed for validating diabetic neuropathy. Assessment of levels of serum biochemical parameters, oxidative stress parameters, pro-inflammatory cytokines as well as neuron specific markers was done in the current study. Rat brains were subjected to histopathology and their sciatic nerves were subjected to transmission electron microscopy to analyze myelin structure alterations. All these results reveal that esculin ameliorates diabetic neuropathy in experimental diabetic rats. Conclusively, our study demonstrates the anti-amyloidogenic potential of esculin in the form of inhibition of human insulin fibrillation, making it a promising candidate in combating neurodegenerative disorders in the near future and the results of various behavioral, biochemical, and molecular studies reveal that esculin possesses anti-lipidemic, anti-inflammatory, anti-oxidative and neuroprotective properties which help in ameliorating diabetic neuropathy in streptozotocin induced diabetic Wistar rats.
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Affiliation(s)
- Nida Naseem
- Research Lab-1, Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, Uttar Pradesh 202002, India
| | - Md Fahim Ahmad
- Research Lab-1, Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, Uttar Pradesh 202002, India
| | - Sadia Malik
- Research Lab-3, Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, Uttar Pradesh 202002, India
| | - Rizwan Hasan Khan
- Research Lab-3, Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, Uttar Pradesh 202002, India.
| | - Waseem A Siddiqui
- Research Lab-1, Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, Uttar Pradesh 202002, India.
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14
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Alomar SY. Studying the Mechanism of Interaction of Doxofylline with Human Lysozyme: A Biophysical and In Silico Approach. Molecules 2023; 28:molecules28083462. [PMID: 37110695 PMCID: PMC10146846 DOI: 10.3390/molecules28083462] [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: 12/29/2022] [Revised: 03/29/2023] [Accepted: 04/01/2023] [Indexed: 04/29/2023] Open
Abstract
In this study, multiple spectroscopic and computational methods were utilized to investigate the binding mechanism of doxofylline with lysozyme. The in vitro methods were used to obtain the binding kinetics and thermodynamics. UV-vis spectroscopy indicated the formation of complex between doxofylline and lysozyme. The Gibb's free energy and binding constant from UV-vis data was obtained as -7.20 kcal M-1 and 1.929 × 105 M-1, respectively. Doxofylline successfully quenched the fluorescence of lysozyme, confirming the formation of complex. The kq and Ksv values for the quenching of lysozyme's fluorescence by doxofylline were 5.74 × 1011 M-1 s-1 and 3.32 × 103 M-1, respectively. These values signified a moderate binding affinity between doxofylline and lysozyme. In synchronous spectroscopy, red shifts were observed for indicating the changes in microenvironment of lysozyme following the binding of doxofylline. The secondary structural analysis was determined using circular dichroism (CD) which revealed an increase in % α-helical as a result of doxofylline interaction. The binding affinity and flexibility of lysozyme upon complexation have been revealed via molecular docking and molecular dynamic (MD) simulations, respectively. According to the many parameters of the MD simulation, the lysozyme-doxofylline complex was stable under physiological conditions. All during the simulation time, hydrogen bonds were continuously present. The MM-PBSA binding energy for lysozyme and doxofylline binding was found to be -30.55 kcal mol-1.
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Affiliation(s)
- Suliman Yousef Alomar
- Zoology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
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15
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Malik S, Siddiqi MK, Naseem N, Nabi F, Masroor A, Majid N, Hashmi A, Khan RH. Biophysical insight into the anti-fibrillation potential of Glyburide for its possible implication in therapeutic intervention of amyloid associated diseases. Biochimie 2023; 211:110-121. [PMID: 36958592 DOI: 10.1016/j.biochi.2023.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 02/27/2023] [Accepted: 03/15/2023] [Indexed: 03/25/2023]
Abstract
Protein aggregation is an underlying cause of many neurodegenerative diseases. Also, the overlapping pathological disturbances between neurodegenerative diseases and type-2 diabetes mellitus have urged the scientific community to explore potential of already available anti-diabetic medications in impeding amyloid formation too. Recent study brief out promising potential of an anti-diabetic drug Glyburide(GLY) as an inhibitor of amyloid fibrillation utilizing several biophysical techniques, computational methods and imaging tools. The mechanism of interaction was elucidated and the structural alterations in human serum albumin(HSA) as well as the microenvironment changes of its fluorophores(tryptophan, tyrosine) upon interacting with GLY were studied by spectroscopic techniques like Circular dichroism and synchronous fluorescence. Binding studies detailing about the GLY-HSA complex distance and the energy transfer efficiency was obtained by Fluorescence resonance energy transfer. For aggregation inhibition studies, the existence and size of aggregates formed in HSA and their inhibition by GLY was determined by Turbidity assay, Dynamic light scattering and Rayleigh light scattering along with dye binding assays. The ThT kinetics measurements analysis suggested that GLY deaccelerates fibrillation by decrement of apparent rate(Kapp) constant. The inhibitory effect of GLY might be attributed to native structure stabilization of HSA by obstruction into β-sheet conversion as confirmed by CD spectroscopy results. Amyloid inhibition and suppression of amyloid-induced hemolysis by GLY was further delineated by TEM and SEM analysis respectively. All these findings for the first time report the new facet of the anti-amyloidogenic potential of GLY, making it a promising candidate to treat neurodegenerative diseases too in the near future.
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Affiliation(s)
- Sadia Malik
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, 202002, India
| | | | - Nida Naseem
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, 202002, India
| | - Faisal Nabi
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, 202002, India
| | - Aiman Masroor
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, 202002, India
| | - Nabeela Majid
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, 202002, India
| | - Amiruddin Hashmi
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, 202002, India
| | - Rizwan Hasan Khan
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, 202002, India.
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16
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Sengani M, Chakraborty S, Balaji MP, Govindasamy R, Alahmadi TA, Al Obaid S, Karuppusamy I, Lan Chi NT, Brindhadevi K, V DR. Anti-diabetic efficacy and selective inhibition of methyl glyoxal, intervention with biogenic Zinc oxide nanoparticle. ENVIRONMENTAL RESEARCH 2023; 216:114475. [PMID: 36244440 DOI: 10.1016/j.envres.2022.114475] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 09/27/2022] [Accepted: 09/29/2022] [Indexed: 06/16/2023]
Abstract
Non-enzymatic glycation of biomolecules results in advanced glycation end products (AGEs), which are responsible for secondary complications in diabetes. Inhibiting methyl glyoxal (MGO) induced advanced glycation end product (AGE) formation is the only way to alleviate diabetic complications. This study aimed to look into the abilities of herbal extract Kigelia africana and K. africana synthesized zinc oxide nanoparticles (ZnONPs) to inhibit the emergence of MG-derived AGEs. The study intended to determine antioxidant and AGE inhibition of the plant extract and ZnONPs. ZnONPs were tested for the efficiency of anti-diabetic activity in streptozotocin-induced diabetic Wister rats. We discovered that the MGO-trapping effects on the prevention of AGE production were mediated by the downregulation of the amplification of MGO-trapping impacts on the hypoglycemic and antihyperlipidemic mechanisms of ZnONPs. According to histological findings, the treatment with ZnONPs also successfully lowers inflammation in the hepatic and renal tissues. Overall, future mechanistic research could establish ZnONPs potential anti-diabetic properties.
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Affiliation(s)
- Manimegalai Sengani
- Department of Biotechnology, College of Science and Humanities, SRM Institute of Science and Technology, Rampuram, Chennai, 87, India
| | - Shreya Chakraborty
- Department of Biomedical Sciences, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, 14, Tamil Nadu, India
| | - Menaka Priya Balaji
- Department of Biomedical Sciences, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, 14, Tamil Nadu, India
| | - Rajakumar Govindasamy
- Department of Orthodontics Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, India
| | - Tahani Awad Alahmadi
- Department of Pediatrics, College of Medicine and King Khalid University Hospital, King Saud University, Medical City, PO Box-2925, Riyadh, 11461, Saudi Arabia
| | - Sami Al Obaid
- Department of Botany and Microbiology, College of Science, King Saud University, PO Box -2455, Riyadh, 11451, Saudi Arabia
| | - Indira Karuppusamy
- Research Center for Strategic Materials, Corrosion Resistant Steel Group, National Institute for Materials Science (NIMS), Tsukuba, Japan
| | - Nguyen Thuy Lan Chi
- School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Viet Nam
| | - Kathirvel Brindhadevi
- Computational Engineering and Design Research Group, School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Viet Nam.
| | - Devi Rajeswari V
- Department of Biomedical Sciences, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, 14, Tamil Nadu, India.
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17
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Hu S, Huo L, He J, Jin Y, Deng Y, Liu D. Ginseng glycoprotein and ginsenoside facilitate anti UV damage effects in diabetic rats. Front Pharmacol 2022; 13:1075594. [PMID: 36588701 PMCID: PMC9800513 DOI: 10.3389/fphar.2022.1075594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 12/07/2022] [Indexed: 12/23/2022] Open
Abstract
Diabetes mellitus combined with ultraviolet (UV) radiation damage not only brings great mental stress to patients, but also seriously impairs their quality of life. A UV-irradiated diabetic rat trauma skin model was established by us to investigate the effects and possible mechanisms of ginsenoside and glycoprotein on skin trauma repair in UV-irradiated diabetic rats. In the study, ginsenosides and ginseng glycoproteins were extracted from different parts of ginseng roots. It found that it's easier to prepare saponins in ginseng bark and proteins in ginseng core in large quantities. Since glycoprotein-like metabolites are relatively novel ginseng extracts, specifically characterized its structures. It was verified that the ginseng glycoproteins are not toxic to HaCaT cells and can significantly increase the survival of HaCaT cells after UV damage at the in vitro cellular level. Experiments in vivo were conducted to evaluate the therapeutic effects of ginsenoside and ginseng glycoprotein in a rat model of diabetes mellitus combined with UV irradiation injury. Histopathological changes on rat skin after treatment with ginsenoside and ginseng glycoprotein were evaluated by hematoxylin and eosin (H&E) staining and aldehyde fuchsine staining. The expression levels of malondialdehyde (MDA), superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), matrix metalloproteinases (MMPs), hydroxyproline (HYP), interleukin-6 (IL-6), interleukin-1β (IL-1β), and tumor necrosis factor-α (TNF-α) were measured. The results indicate that both ginsenoside and ginseng glycoprotein could improve skin damage and ulcers caused by diabetes combined with UV irradiation and could alleviate a range of skin damage caused by the combination of diabetes and UV irradiation, including peroxidation and collagen fiber loss. Ginsenoside and ginseng glycoproteins can be considered as natural product candidates for the development of new drugs to treat diabetes combined with UV irradiation-induced skin damage.
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Affiliation(s)
- Shuang Hu
- School of Pharmacy, Changchun University of Chinese Medicine, Changchun, China
| | - Lulu Huo
- School of Pharmacy, Changchun University of Chinese Medicine, Changchun, China
| | - Jing He
- School of Pharmacy, Changchun University of Chinese Medicine, Changchun, China
| | - Ye Jin
- School of Pharmacy, Changchun University of Chinese Medicine, Changchun, China,*Correspondence: Ye Jin, ; Yongzhi Deng, ; Da Liu,
| | - Yongzhi Deng
- Department of Acupuncture and Massage, The Third Affiliated Hospital of Changchun University of Chinese Medicine, Changchun, China,*Correspondence: Ye Jin, ; Yongzhi Deng, ; Da Liu,
| | - Da Liu
- School of Pharmacy, Changchun University of Chinese Medicine, Changchun, China,*Correspondence: Ye Jin, ; Yongzhi Deng, ; Da Liu,
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18
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Cheng F, Wang S, Zheng H, Shen H, Zhou L, Yang Z, Li Q, Zhang Q, Zhang H. Ceria Nanoenzyme-Based Hydrogel with Antiglycative and Antioxidative Performance for Infected Diabetic Wound Healing. SMALL METHODS 2022; 6:e2200949. [PMID: 36202612 DOI: 10.1002/smtd.202200949] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 09/09/2022] [Indexed: 06/16/2023]
Abstract
Diabetic wound healing still faces a dilemma because of the hostile hyperglycemic, oxidative, and easily-infected wound microenvironment. In addition, advanced glycation end products (AGEs) further impede wound repair by altering the immunological balance. Herein, ceria nanorods with distinctive antiglycative and excellent antioxidative capacities are innovatively introduced into a self-healing and erasable hydrogel, which could reshape the wound microenvironment by expediting hemostasis, inhibiting infection, reducing AGEs, and continuously depleting reactive oxygen species. The remitted oxidative stress and glycosylation synergistically regulate inflammatory responses, and promote revascularization and extracellular matrix deposition, resulting in accelerated diabetic wound repair. This study provides a highly efficient strategy for constructing nanoenzyme-reinforced antiglycative hydrogel that regulates every wound healing stage for diabetic wound management.
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Affiliation(s)
- Fang Cheng
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen, 518057, China
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, 710129, China
| | - Shenqiang Wang
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, 710129, China
| | - Hua Zheng
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, 710129, China
| | - Haidong Shen
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, 710129, China
| | - Li Zhou
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, 710129, China
| | - Zuoting Yang
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, 710129, China
| | - Qiyan Li
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, 710129, China
| | - Qiuyu Zhang
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen, 518057, China
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, 710129, China
| | - Hepeng Zhang
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen, 518057, China
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, 710129, China
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19
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Chtita S, Belaidi S, Qais FA, Ouassaf M, AlMogren MM, Al-Zahrani AA, Bakhouch M, Belhassan A, Zaki H, Bouachrine M, Lakhlifi T. Unsymmetrical aromatic disulfides as SARS-CoV-2 Mpro inhibitors: Molecular docking, molecular dynamics, and ADME scoring investigations. JOURNAL OF KING SAUD UNIVERSITY - SCIENCE 2022; 34:102226. [PMID: 35875823 PMCID: PMC9296233 DOI: 10.1016/j.jksus.2022.102226] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/03/2022] [Accepted: 07/08/2022] [Indexed: 11/17/2022]
Abstract
COVID-19 pandemic caused by very severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) agent is an ongoing major global health concern. The disease has caused more than 452 million affected cases and more than 6 million death worldwide. Hence, there is an urgency to search for possible medications and drug treatments. There are no approved drugs available to treat COVID-19 yet, although several vaccine candidates are already available and some of them are listed for emergency use by the world health organization (WHO). Identifying a potential drug candidate may make a significant contribution to control the expansion of COVID-19. The in vitro biological activity of asymmetric disulfides against coronavirus through the inhibition of SARS-CoV-2 main protease (Mpro) protein was reported. Due to the lack of convincing evidence those asymmetric disulfides have favorable pharmacological properties for the clinical treatment of Coronavirus, in silico evaluation should be performed to assess the potential of these compounds to inhibit the SARS-CoV-2 Mpro. In this context, we report herein the molecular docking for a series of 40 unsymmetrical aromatic disulfides as SARS-CoV-2 Mpro inhibitor. The optimal binding features of disulfides within the binding pocket of SARS-CoV-2 endoribonuclease protein (Protein Data Bank [PDB]: 6LU7) was described. Studied compounds were ranked for potential effectiveness, and those have shown high molecular docking scores were proposed as novel drug candidates against SARS-CoV-2. Moreover, the outcomes of drug similarity and ADME (Absorption, Distribution, Metabolism, and Excretion) analyses have may have the effectiveness of acting as medicines, and would be of interest as promising starting point for designing compounds against SARS-CoV-2. Finally, the stability of these three compounds in the complex with Mpro was validated through molecular dynamics (MD) simulation, in which they displayed stable trajectory and molecular properties with a consistent interaction profile.
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Affiliation(s)
- Samir Chtita
- Laboratory of Analytical and Molecular Chemistry of Sciences Ben M'Sik, Hassan II University of Casablanca, B.P. 7955 Sidi Othmane, Casablanca, Morocco
| | - Salah Belaidi
- Laboratory of Molecular Chemistry and Environment, University of Biskra, BP145, 07000 Biskra, Algeria
- Pharmaceutical Sciences Research Center (CRSP), New City Ali Mendjeli, Constantine, Algeria
| | - Faizan Abul Qais
- Department of Agricultural Microbiology, Faculty of Agricultural Sciences, Aligarh Muslim University, Aligarh, UP 202002, India
| | - Mebarka Ouassaf
- Laboratory of Molecular Chemistry and Environment, University of Biskra, BP145, 07000 Biskra, Algeria
| | | | - Ateyah A Al-Zahrani
- Chemical Engineering Department, College of Engineering, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohamed Bakhouch
- Laboratory of Bioorganic Chemistry, Department of Chemistry, Faculty of Sciences, Chouaïb Doukkali University, P.O. Box 24, El Jadida M-24000, Morocco
| | - Assia Belhassan
- Molecular Chemistry and Natural Substances Laboratory, Faculty of Science, Moulay Ismail University, B.P. 11201 Zitoune, Meknes, Morocco
| | - Hanane Zaki
- Higher School of Technology Khenifra, Sultane Moulay Slimane University, Khenifra, Morocco
| | - Mohammed Bouachrine
- Molecular Chemistry and Natural Substances Laboratory, Faculty of Science, Moulay Ismail University, B.P. 11201 Zitoune, Meknes, Morocco
- Higher School of Technology Khenifra, Sultane Moulay Slimane University, Khenifra, Morocco
| | - Tahar Lakhlifi
- Molecular Chemistry and Natural Substances Laboratory, Faculty of Science, Moulay Ismail University, B.P. 11201 Zitoune, Meknes, Morocco
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Warsi MS, Habib S, Talha M, Khan S, Singh P, Mir AR, Abidi M, Ali A. 4-Chloro-1,2-phenylenediamine induced structural perturbation and genotoxic aggregation in human serum albumin. Front Chem 2022; 10:1016354. [PMID: 36199663 PMCID: PMC9527296 DOI: 10.3389/fchem.2022.1016354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 09/05/2022] [Indexed: 11/24/2022] Open
Abstract
4-Chloro-1,2-phenylenediamine (4-Cl-OPD) is a halogenated aromatic diamine used as a precursor in permanent hair color production. Despite its well-documented mutagenic and carcinogenic effects in various in vitro and in vivo models, its role in fibrillar aggregate formation and their genotoxic effect in therapeutic proteins has received less attention. The significance of human serum albumin (HSA) arises from its involvement in bio-regulatory and transport processes. HSA misfolding and aggregation are responsible for some of the most frequent neurodegenerative disorders. We used various complementary approaches to track the formation of amyloid fibrils and their genotoxic effect. Molecular dynamics study demonstrated the complex stability. The impact of 4-Cl-OPD on the structural dynamics of HSA was confirmed by Raman spectroscopy, X-ray diffraction, HPLC and SDS-PAGE. Fibrilllar aggregates were investigated using Congo red assay, DLS, and SEM. The genotoxic nature of 4-Cl-OPD was confirmed using plasmid nicking assay and DAPI staining, which revealed DNA damage and cell apoptosis. 4-Cl-OPD provides a model system for studying fibrillar aggregation and their genotoxic potential in the current investigation. Future studies should investigate the inhibition of the aggregation/fibrillation process, which may yield valuable clinical insights.
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Affiliation(s)
- Mohd Sharib Warsi
- Department of Biochemistry, Faculty of Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, India
| | - Safia Habib
- Department of Biochemistry, Faculty of Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, India
| | - Mohd Talha
- Department of Biochemistry, Faculty of Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, India
| | - Shifa Khan
- Department of Biochemistry, Faculty of Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, India
| | - Priyam Singh
- Department of Biochemistry, Faculty of Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, India
| | - Abdul Rouf Mir
- Department of Biochemistry, Faculty of Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, India
| | - Minhal Abidi
- Department of Biochemistry, Faculty of Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, India
| | - Asif Ali
- Department of Biochemistry, Faculty of Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, India
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21
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Qais FA, Alomar SY, Imran MA, Hashmi MA. In-Silico Analysis of Phytocompounds of Olea europaea as Potential Anti-Cancer Agents to Target PKM2 Protein. Molecules 2022; 27:molecules27185793. [PMID: 36144527 PMCID: PMC9503632 DOI: 10.3390/molecules27185793] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 08/07/2022] [Accepted: 08/26/2022] [Indexed: 11/30/2022] Open
Abstract
Globally, cancer is the second leading cause of mortality and morbidity. The growth and development of cancer are extremely complex. It is caused by a variety of pathways and involves various types of enzymes. Pyruvate kinase M2 (PKM2) is an isoform of pyruvate kinase, that catalyses the last steps of glycolysis to produce energy. PKM2 is relatively more expressed in tumour cells where it tends to exist in a dimer form. Various medicinal plants are available that contain a variety of micronutrients to combat against different cancers. The phytocompounds of the olive tree (Olea europaea) leaves play an important role in inhibiting the proliferation of several cancers. In this study, the phytocompounds of olive leaf extract (OLE) were studied using various in silico tools, such as pkCSM software to predict ADMET properties and PASS Online software to predict anticancer activity. However, the molecular docking study provided the binding energies and inhibition constant and confirmed the interaction between PKM2 and the ligands. The dynamic behaviour, conformational changes, and stability between PKM2 and the top three hit compounds (Verbascoside (Ver), Rutin (Rut), and Luteolin_7_O_glucoside (Lut)) are studied by MD simulations.
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Affiliation(s)
- Faizan Abul Qais
- Department of Agricultural Microbiology, Faculty of Agricultural Sciences, Aligarh Muslim University, Aligarh UP-202002, India
- Correspondence: ; Tel.: +91-571-2703516
| | - Suliman Yousef Alomar
- Department of Zoology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohammad Azhar Imran
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul 06273, Korea
| | - Md Amiruddin Hashmi
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh UP-202002, India
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22
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Extraction, Chemical Compositions and Biological Activities of Essential Oils of Cinnamomum verum Cultivated in Vietnam. Processes (Basel) 2022. [DOI: 10.3390/pr10091713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Cinnamomum verum (Cinnamomum genus) essential oil is commonly used in food preparation and traditional medicines, with a broad spectrum of biological activities. However, research on the extraction of essential oils (EOs) from C. verum cultivated locally in Vietnam is currently limited. Therefore, in this study, the chemical compositions and bioactivities of EOs from the bark and leaves of C. verum collected from the Thai Nguyen and Yen Bai provinces of Vietnam were investigated. The EOs samples were extracted by using water distillation, organic solvent (n-hexane) and ultrasound-assisted (in n-hexane solvent) extraction methods. The chemical composition of the obtained EOs were analyzed by GC-FID and GC/MS analyses. Results showed that the major chemical compositions of C. verum EOs were: (E)-cinnamaldehyde, trans-cinnamic acid, cinnamyl acetate, and benzaldehyde. Furthermore, C. verum EOs exhibited inhibitory activities against two tested cancer cell lines and four bacterial strains. These findings provide essential knowledge about the potential application of C. verum EOs cultivated in Vietnam for the pharmaceutical industry.
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23
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Saeed A, Ejaz SA, Sarfraz M, Tamam N, Siddique F, Riaz N, Qais FA, Chtita S, Iqbal J. Discovery of Phenylcarbamoylazinane-1,2,4-Triazole Amides Derivatives as the Potential Inhibitors of Aldo-Keto Reductases (AKR1B1 & AKRB10): Potential Lead Molecules for Treatment of Colon Cancer. Molecules 2022; 27:molecules27133981. [PMID: 35807227 PMCID: PMC9268700 DOI: 10.3390/molecules27133981] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 05/19/2022] [Accepted: 05/23/2022] [Indexed: 12/12/2022] Open
Abstract
Both members of the aldo-keto reductases (AKRs) family, AKR1B1 and AKR1B10, are over-expressed in various type of cancer, making them potential targets for inflammation-mediated cancers such as colon, lung, breast, and prostate cancers. This is the first comprehensive study which focused on the identification of phenylcarbamoylazinane-1, 2,4-triazole amides (7a−o) as the inhibitors of aldo-keto reductases (AKR1B1, AKR1B10) via detailed computational analysis. Firstly, the stability and reactivity of compounds were determined by using the Guassian09 programme in which the density functional theory (DFT) calculations were performed by using the B3LYP/SVP level. Among all the derivatives, the 7d, 7e, 7f, 7h, 7j, 7k, and 7m were found chemically reactive. Then the binding interactions of the optimized compounds within the active pocket of the selected targets were carried out by using molecular docking software: AutoDock tools and Molecular operation environment (MOE) software, and during analysis, the Autodock (academic software) results were found to be reproducible, suggesting this software is best over the MOE (commercial software). The results were found in correlation with the DFT results, suggesting 7d as the best inhibitor of AKR1B1 with the energy value of −49.40 kJ/mol and 7f as the best inhibitor of AKR1B10 with the energy value of −52.84 kJ/mol. The other potent compounds also showed comparable binding energies. The best inhibitors of both targets were validated by the molecular dynamics simulation studies where the root mean square value of <2 along with the other physicochemical properties, hydrogen bond interactions, and binding energies were observed. Furthermore, the anticancer potential of the potent compounds was confirmed by cell viability (MTT) assay. The studied compounds fall into the category of drug-like properties and also supported by physicochemical and pharmacological ADMET properties. It can be suggested that the further synthesis of derivatives of 7d and 7f may lead to the potential drug-like molecules for the treatment of colon cancer associated with the aberrant expression of either AKR1B1 or AKR1B10 and other associated malignancies.
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Affiliation(s)
- Amna Saeed
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan;
| | - Syeda Abida Ejaz
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan;
- Correspondence: (S.A.E.); (J.I.)
| | - Muhammad Sarfraz
- College of Pharmacy, Al Ain Campus, Al Ain University, Al Ain P.O. Box 64141, United Arab Emirates;
| | - Nissren Tamam
- Department of Physics, College of Science, Princess Nourah bint Abdulrahman University, P.O Box 84428, Riyadh 11671, Saudi Arabia;
| | - Farhan Siddique
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, SE-60174 Norrköping, Sweden;
- Department of Pharmacy, Royal Institute of Medical Sciences (RIMS), Multan 60000, Pakistan
| | - Naheed Riaz
- Department of Chemistry, Baghdad-ul-Jadeed Campus, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan;
| | - Faizan Abul Qais
- Department of Agricultural Microbiology, Faculty of Agricultural Sciences, Aligarh Muslim University, Aligarh 202002, UP, India;
| | - Samir Chtita
- Laboratory of Analytical and Molecular Chemistry, Faculty of Sciences Ben M’Sik, Hassan II University of Casablanca, Sidi Othmane, Casablanca BP7955, Morocco;
| | - Jamshed Iqbal
- Centre for Advanced Drug Research, Abbottabad Campus, COMSATS University Islamabad, Abbotabad 22060, Pakistan
- Correspondence: (S.A.E.); (J.I.)
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Khamouli S, Belaidi S, Bakhouch M, Chtita S, Hashmi MA, Qais FA. QSAR modeling, molecular docking, ADMET prediction and molecular dynamics simulations of some 6-arylquinazolin-4-amine derivatives as DYRK1A inhibitors. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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25
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Chtita S, Fouedjou RT, Belaidi S, Djoumbissie LA, Ouassaf M, Qais FA, Bakhouch M, Efendi M, Tok TT, Bouachrine M, Lakhlifi T. In silico investigation of phytoconstituents from Cameroonian medicinal plants towards COVID-19 treatment. Struct Chem 2022; 33:1799-1813. [PMID: 35505923 PMCID: PMC9051495 DOI: 10.1007/s11224-022-01939-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Accepted: 04/07/2022] [Indexed: 01/01/2023]
Abstract
In silico studies performed on the metabolites of four Cameroonian medicinal plants with a view to propose potential molecules to fight against COVID-19 were carried out. At first, molecular docking was performed for a set of 84 selected phytochemicals with SARS-CoV-2 main protease (PDB ID: 6lu7) protein. It was further followed by assessing the pharmacokinetics and pharmacological abilities of 15 compounds, which showed low binding energy values. As the screening criteria for their ADMET properties were performed, only two compounds have shown suitable pharmacological properties for human administration which were shortlisted. Furthermore, the stability of binding of these compounds was assessed by performing molecular dynamics (MD) simulations. Based on further analysis through molecular dynamics simulations and reactivity studies, it was concluded that only the Pycnanthuquinone C (17) and the Pycnanthuquinone A (18) extracted from the Pycnanthus angolensis could be considered as candidate inhibitors for targeted protein. Indeed, we expect that these compounds could show excellent in vitro and in vivo activity against SARS-CoV-2.
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26
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Khan RA, AlFawaz A, Farshori NN, Paul A, Jaafar MH, Alsalme A. Aminobenzimidazoles based (η
6
‐p‐cymene)Ruthenium (II) complexes as Nascent Anticancer Chemotherapeutics: Synthesis, Crystal Structure, DFT Studies, HSA Interactions, Molecular Docking, and Cytotoxicity. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6702] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Rais Ahmad Khan
- Department of Chemistry College of Science, King Saud University Riyadh KSA
| | - Amal AlFawaz
- Department of Chemistry College of Science, King Saud University Riyadh KSA
| | - Nida N. Farshori
- Department of Pharmacognosy College of Pharmacy, King Saud University Riyadh KSA
| | - Anup Paul
- Centro de Quimica Estrutural, Instituto Superior Tecnio, Unversidade de Lisboa Lisboa Portugal
| | - Mohammed H. Jaafar
- Department of Chemistry College of Science, King Saud University Riyadh KSA
| | - Ali Alsalme
- Department of Chemistry College of Science, King Saud University Riyadh KSA
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27
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Ameliorative effect of pioglitazone on glucose induced glycation of α-crystallin: Management of complications associated with diabetic retinopathy. Int J Biol Macromol 2022; 209:107-116. [PMID: 35378163 DOI: 10.1016/j.ijbiomac.2022.03.202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/28/2022] [Accepted: 03/29/2022] [Indexed: 11/22/2022]
Abstract
The glycation and aggregation of lens proteins significantly contribute to the onset of diabetic cataracts as well as the retinopathy. The glycation exerts numerous alterations in the tertiary structural of proteins. Moreover, the covalent crosslinking of lens crystallins also contribute to the cataract formation. In this article, the effect of pioglitazone on glucose induced glycation and aggregation α-crystallin was examined. A remarkable inhibition of early glycation products (~80%) and advanced glycation products (~75%) was recorded by the treatment of pioglitazone. There was >75% recovery in biochemical marker (carbonyl content). The presence of 150 μM of pioglitazone reduced the free lysine modifications to 35%. Treatment of pioglitazone also protected the secondary structural alterations induced by glycation and inhibited the formation of protein aggregates. The interaction studies showed that pioglitazone interacted with α-crystallin via moderate binding affinity. The interaction between pioglitazone interacted and α-crystallin was energetically and entropically favourable. The complex of pioglitazone with studied protein stable in which RMSF, Rg, SASA, RMSD, and the secondary structural components was not affected. The findings show antiglycation activity of pioglitazone along with its mechanism of action highlighting the ability of drug to be possibly developed novel as glycation inhibitor.
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28
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Design of novel benzimidazole derivatives as potential α-amylase inhibitors using QSAR, pharmacokinetics, molecular docking, and molecular dynamics simulation studies. J Mol Model 2022; 28:106. [DOI: 10.1007/s00894-022-05097-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 03/15/2022] [Indexed: 02/06/2023]
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29
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Nour H, Abchir O, Belaidi S, Qais FA, Chtita S, Belaaouad S. 2D‐QSAR and molecular docking studies of carbamate derivatives to discover novel potent anti‐butyrylcholinesterase agents for Alzheimer's disease treatment. B KOREAN CHEM SOC 2021. [DOI: 10.1002/bkcs.12449] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Hassan Nour
- Laboratory of Physical Chemistry of Materials Faculty of Sciences Ben M'Sik, Hassan II University of Casablanca Casablanca Morocco
| | - Oussama Abchir
- Laboratory of Physical Chemistry of Materials Faculty of Sciences Ben M'Sik, Hassan II University of Casablanca Casablanca Morocco
| | - Salah Belaidi
- Group of Computational and Medicinal Chemistry, LMCE Laboratory University of Biskra Biskra Algeria
| | - Faizan Abul Qais
- Department of Agricultural Microbiology, Faculty of Agricultural Sciences Aligarh Muslim University Aligarh Uttar Pradesh India
| | - Samir Chtita
- Laboratory of Analytical and Molecular Chemistry, Faculty of Sciences Ben M'Sik Hassan II University of Casablanca Casablanca 7955 Morocco
| | - Said Belaaouad
- Laboratory of Physical Chemistry of Materials Faculty of Sciences Ben M'Sik, Hassan II University of Casablanca Casablanca Morocco
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30
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Peng CY, Zhu HD, Zhang L, Li XF, Zhou WN, Tu ZC. Urolithin A alleviates advanced glycation end-product formation by altering protein structures, trapping methylglyoxal and forming complexes. Food Funct 2021; 12:11849-11861. [PMID: 34734623 DOI: 10.1039/d1fo02631c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Urolithin A (UroA) is a first-in-class natural compound derived from the gut microbiota-derived metabolites of ellagitannins. This research for the first time evaluates the mechanisms of UroA inhibiting advanced glycation end-product (AGE) formation by fluorescence spectroscopy, molecular docking, liquid chromatography (LC) and LC-Oribitrap tandem mass spectrometry. The results indicated that UroA exhibited a good suppression effect on the formation of AGEs in human serum albumin (HSA)-fructose and HSA-methylglyoxal (MGO) systems. Further mechanism analysis revealed that UroA alleviated AGE formation by changing the conformational structure of HSA, trapping reactive MGO to form mono-MGO-UroA complexes, promoting the exposure of chromophores to a more hydrophobic micro-environment, and forming stable UroA-HSA complexes. UroA bound with HSA in an equimolar manner, the binding was an exothermic spontaneous process, subdomain IIIA was the preferred binding pocket, and hydrogen bonding, hydrophobic interactions and van der Waals forces were the major interaction forces. The number of glycation sites detected in glycated HSA was reduced by 1 and 2, respectively, when 181.82 and 363.64 μM UroA was added. These could provide an insight into the mechanism of UroA inhibiting HSA glycation, and highlight its value as a promising glycation inhibitor in the prevention of diabetic complications.
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Affiliation(s)
- Chun-Yan Peng
- National R&D center of Freshwater Fish Processing, College of Life Science, Jiangxi Normal University, Nanchang, Jiangxi 330022, China.
| | - Hua-Dong Zhu
- College of Life Science, Nanchang University, Nanchang 330031, China
| | - Lu Zhang
- National R&D center of Freshwater Fish Processing, College of Life Science, Jiangxi Normal University, Nanchang, Jiangxi 330022, China.
| | - Xiao-Feng Li
- National R&D center of Freshwater Fish Processing, College of Life Science, Jiangxi Normal University, Nanchang, Jiangxi 330022, China.
| | - Wen-Na Zhou
- National R&D center of Freshwater Fish Processing, College of Life Science, Jiangxi Normal University, Nanchang, Jiangxi 330022, China.
| | - Zong-Cai Tu
- National R&D center of Freshwater Fish Processing, College of Life Science, Jiangxi Normal University, Nanchang, Jiangxi 330022, China. .,State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, China
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31
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Zahin M, Bokhari NA, Ahmad I, Husain FM, Althubiani AS, Alruways MW, Perveen K, Shalawi M. Antioxidant, antibacterial, and antimutagenic activity of Piper nigrum seeds extracts. Saudi J Biol Sci 2021; 28:5094-5105. [PMID: 34466087 PMCID: PMC8381071 DOI: 10.1016/j.sjbs.2021.05.030] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/11/2021] [Accepted: 05/12/2021] [Indexed: 12/20/2022] Open
Abstract
Piper nigrum is a widely used plant in traditional remedies and known for its numerous biological properties. However, fraction-based antioxidant activity and their antimutagenic potential are not yet fully investigated. Different extracts of the seeds P. nigrum were obtained by sequential extraction in different solvents. All extracts were evaluated for antibacterial and antioxidant activities using different methods. The most active fraction was analyzed for antimutagenic activity using the Ames Salmonella test. The antibacterial activity against methicillin-resistant Staphylococcus aureus (MRSA) was found to be more prominent compared to ESβL producing Klebsiella pneumoniae isolates. The MIC values were found to be lower against MRSA than K. pneumoniae. The extract showing highest antioxidant activity (methanol extract) was further tested for antimutagenic activity both against direct and indirect-acting mutagens. A varying level of antimutagenic activity was shown by methanol extract at highest tested concentration (200 µg/plate). Alkaloids, phenols, and flavonoids were detected as major class of compounds in methanol extract. Gas chromatography-mass spectrometry (GC–MS) analysis showed the presence of various phytocompounds. Based on molecular docking of two major active phytocompounds (piperine and copaene), they were found to interact at the minor groove of DNA. Molecular dynamics (MD) simulation revealed that both the ligands were quite stable with DNA under physiological conditions. The ability of phytocompounds to interact with DNA might be reducing the interaction of mutagens and could be one of the possible mechanism of anti-mutagenic activity of P. nigrum extract. This study highlights the antioxidant and antimutagenic potential of Piper nigrum. The role of phytocompounds present in the bioactive extract is needed to be explored further for herbal drug research.
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Affiliation(s)
- Maryam Zahin
- Department of Agricultural Microbiology, Faculty of Agricultural Sciences, Aligarh Muslim University, Aligarh-202002, UP, India
| | - Najat A. Bokhari
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
- Corresponding author.
| | - Iqbal Ahmad
- Department of Agricultural Microbiology, Faculty of Agricultural Sciences, Aligarh Muslim University, Aligarh-202002, UP, India
- Corresponding author.
| | - Fohad Mabood Husain
- Department of Food Science and Nutrition, College of Food and Agriculture Science, King Saud University, Riyadh, Saudi Arabia
| | | | - Mashael W. Alruways
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Shaqra University, Shaqra, Saudi Arabia
| | - Kahkashan Perveen
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Misfera Shalawi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
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32
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Xing X, Chun C, Qiang H, Xiong F, Rui-Hai L. Investigation into the mechanisms of quercetin-3-O-glucuronide inhibiting α-glucosidase activity and non-enzymatic glycation by spectroscopy and molecular docking. Food Funct 2021; 12:7825-7835. [PMID: 34232231 DOI: 10.1039/d1fo01042e] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The inhibition of α-glucosidase and glycation is closely related to the treatment of type 2 diabetes mellitus (DM) and its complications. In this study, quercetin-3-O-glucuronide (Q3GA) showed reversible and mixed-mode inhibition of α-glucosidase activity, with an IC50 value of 108.11 ± 4.61 μM. This was mainly due to the spontaneous formation of Q3GA-α-glucosidase driven by hydrogen bonding and van der Waals forces, which could change the microenvironments and conformation of α-glucosidase. In addition, Q3GA showed strong suppression of the formation of glycation products, including fructosamine, advanced glycation end products (AGEs), and 5-hydroxymethylfurfural (5-HMF). Molecular docking analysis demonstrated that Q3GA entered the hydrophobic pocket of ovalbumin to form six hydrogen bonds with amino acid residues, which affected the glycation process. These findings indicate that Q3GA is an excellent inhibitor of α-glucosidase and glycation, and promote its development as a drug or dietary supplement for DM.
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Affiliation(s)
- Xie Xing
- SCUT-Zhuhai Institute of Modern Industrial Innovation, School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China.
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