1
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Kummur KN, Panda SM, Patil MB, Tripathy U, Sidarai AH. Revealing the interaction mechanism between bovine serum albumin (BSA) and a fluorescent coumarin derivative: A multispectroscopic and in silico approach. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 318:124466. [PMID: 38761474 DOI: 10.1016/j.saa.2024.124466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 05/05/2024] [Accepted: 05/12/2024] [Indexed: 05/20/2024]
Abstract
The interaction of biomacromolecules with each other or with the ligands is essential for biological activity. In this context, the molecular recognition of bovine serum albumin (BSA) with 4-(Benzo[1,3]dioxol-5-yloxymethyl)-7-hydroxy-chromen-2-one (4BHC) is explored using multispectroscopic and computational techniques. UV-Vis spectroscopy helped in predicting the conformational variations in BSA. Using fluorescence spectroscopy, the quenching behaviour of the fluorophore upon interaction with the ligand is examined, which is found to be a static type of quenching; fluorescence lifetime studies further verify this. The binding constant is discovered to be in the range of 104 M-1, which indicates the moderate type of association that results in reversible binding, where the transport and release of ligands in the target tissue takes place. Fourier-transform infrared spectroscopy (FT-IR) measurements validate the secondary structure conformational changes of BSA after complexing with 4BHC. The thermodynamic factors obtained through temperature-dependent fluorescence studies suggest that the dominant kind of interaction force is hydrophobic in nature, and the interaction process is spontaneous. The alterations in the surrounding microenvironment of the binding site and conformational shifts in the structure of the protein are studied through 3D fluorescence and synchronous fluorescence studies. Molecular docking and molecular dynamics (MD) simulations agree with experimental results and explain the structural stability throughout the discussion. The outcomes might have possible applications in the field of pharmacodynamics and pharmacokinetics.
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Affiliation(s)
- Kavyashree Nagappa Kummur
- Department of Studies in Physics, Karnatak University, Pavatenagar, Dharwad, 580003, Karnataka, India
| | - Smita Manjari Panda
- Department of Physics, Indian Institute of Technology (Indian School of Mines), Dhanbad, 826004, Jharkhand, India
| | | | - Umakanta Tripathy
- Department of Physics, Indian Institute of Technology (Indian School of Mines), Dhanbad, 826004, Jharkhand, India.
| | - Ashok H Sidarai
- Department of Studies in Physics, Karnatak University, Pavatenagar, Dharwad, 580003, Karnataka, India.
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2
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Gupta R, Paul K. Investigating the Serum Albumin Binding Behavior of Naphthalimide Based Fluorophore Conjugates: Spectroscopic and Molecular Docking Approach. ChemMedChem 2024:e202400114. [PMID: 38676621 DOI: 10.1002/cmdc.202400114] [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: 02/08/2024] [Revised: 04/24/2024] [Accepted: 04/25/2024] [Indexed: 04/29/2024]
Abstract
In the present study, naphthalimide-pyrazole-benzothiazole based fluorescent analogs were synthesized by substituting different primary and secondary amines on the naphthalimide nucleus and were evaluated for their sensitivity and selectivity towards serum albumin. Among various synthesized analogues compound 25 showed the most significant change with serum albumin and was further studied for selective detection and mode of interaction with serum albumin. Here, we compared the binding interaction of fluorescent probe 25 for variation/detection of two 76 % structurally resembling proteins HSA and BSA, by spectroscopic experiments. The compound shows more selectivity for HSA and BSA with a higher binding constant and evident visible change in the emission spectra of two serum albumins among different bioanalytes. The mode of interaction of 25 with human serum albumin and bovine serum albumin was investigated by FT-IR, circular dichroism, and DLS techniques to find out the change in the microenvironment and variation in the structure of serum albumin proteins. Higher binding affinity and specific selectivity of 25 with a limit of detection of 0.69 μM and 1.4 μM towards HSA and BSA compared to other bioanalytes make it a significant fluorescent probe for quantitatively detecting serum albumins at the very early stage of many fatal diseases.
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Affiliation(s)
- Rohini Gupta
- Department of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology, Patiala, 147001, India
| | - Kamaldeep Paul
- Department of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology, Patiala, 147001, India
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3
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Li J, Sun Y, Li G, Cheng C, Sui X, Wu Q. The Extraction, Determination, and Bioactivity of Curcumenol: A Comprehensive Review. Molecules 2024; 29:656. [PMID: 38338400 PMCID: PMC10856406 DOI: 10.3390/molecules29030656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 01/18/2024] [Accepted: 01/26/2024] [Indexed: 02/12/2024] Open
Abstract
Curcuma wenyujin is a member of the Curcuma zedoaria (zedoary, Zingiberaceae) family, which has a long history in traditional Chinese medicine (TCM) due to its abundant biologically active constituents. Curcumenol, a component of Curcuma wenyujin, has several biological activities. At present, despite different pharmacological activities being reported, the clinical usage of curcumenol remains under investigation. To further determine the characteristics of curcumenol, the extraction, determination, and bioactivity of the compound are summarized in this review. Existing research has reported that curcumenol exerts different pharmacological effects in regard to a variety of diseases, including anti-inflammatory, anti-oxidant, anti-bactericidal, anti-diabetic, and anti-cancer activity, and also ameliorates osteoporosis. This review of curcumenol provides a theoretical basis for further research and clinical applications.
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Affiliation(s)
- Jie Li
- State Key Laboratory of Quality Research in Chinese Medicines, Faculty of Chinese Medicine, Macau University of Science and Technology, Macau 999078, China; (J.L.)
- College of Pharmacy, Hangzhou Normal University, Hangzhou 311121, China
- School of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, China
| | - Yitian Sun
- State Key Laboratory of Quality Research in Chinese Medicines, Faculty of Chinese Medicine, Macau University of Science and Technology, Macau 999078, China; (J.L.)
- College of Pharmacy, Hangzhou Normal University, Hangzhou 311121, China
| | - Guohua Li
- State Key Laboratory of Quality Research in Chinese Medicines, Faculty of Chinese Medicine, Macau University of Science and Technology, Macau 999078, China; (J.L.)
- College of Pharmacy, Hangzhou Normal University, Hangzhou 311121, China
| | - Chunsong Cheng
- Lushan Botanical Garden, Chinese Academy of Sciences, Jiujiang 332900, China
| | - Xinbing Sui
- College of Pharmacy, Hangzhou Normal University, Hangzhou 311121, China
| | - Qibiao Wu
- State Key Laboratory of Quality Research in Chinese Medicines, Faculty of Chinese Medicine, Macau University of Science and Technology, Macau 999078, China; (J.L.)
- Zhuhai M.U.S.T. Science and Technology Research Institute, Zhuhai 519031, China
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangzhou 510006, China
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4
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Liu S, Xia J, Jiang D, Li Q, Pan X, Dong X, Wang J, Liu Y, Dong Y. Detection of human serum albumin using a rare-earth nanosheet fluorescent probe based on intensity and lifetime signals. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 302:123046. [PMID: 37390718 DOI: 10.1016/j.saa.2023.123046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 06/15/2023] [Accepted: 06/18/2023] [Indexed: 07/02/2023]
Abstract
Human serum albumin (HSA) is an important biomarker for early disease diagnosis. Therefore, the detection of HSA in biological samples is important. In this study, for the sensitive detection of HSA, a fluorescent probe based on Eu(III)-doped yttrium hydroxide nanosheets was designed and sensitized by α-thiophenformyl acetone trifluoride as an antenna. The morphology and structure of the as-prepared nanosheet fluorescent probe were studied by transmission electron microscopy and atomic force microscopy. A detailed investigation of the fluorescence properties of the as-obtained nanosheet probe revealed that the Eu(III) emission intensity was linearly and selectively enhanced by the consecutive addition of HSA. Furthermore, the lifetime signal of this probe was enhanced with increasing concentration. The sensitivity of the nanosheet probe to HSA is discussed based on the results of ultraviolet-visible, fluorescence, and infrared spectral analyses, the findings demonstrate that the nanosheet fluorescent probe we prepared is a highly sensitive and selective tool for detecting HSA concentration with a high intensity and a large lifetime change.
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Affiliation(s)
- Susu Liu
- School of Chemistry and Molecular Engineering, East China Normal University, 3663 Zhongshanbei Road, Shanghai 200062, China
| | - Jinfeng Xia
- Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China
| | - Danyu Jiang
- Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China
| | - Qiang Li
- School of Chemistry and Molecular Engineering, East China Normal University, 3663 Zhongshanbei Road, Shanghai 200062, China.
| | - Xin Pan
- School of Chemistry and Molecular Engineering, East China Normal University, 3663 Zhongshanbei Road, Shanghai 200062, China
| | - Xueting Dong
- School of Chemistry and Molecular Engineering, East China Normal University, 3663 Zhongshanbei Road, Shanghai 200062, China
| | - Jiuxia Wang
- School of Chemistry and Molecular Engineering, East China Normal University, 3663 Zhongshanbei Road, Shanghai 200062, China
| | - Yue Liu
- School of Chemistry and Molecular Engineering, East China Normal University, 3663 Zhongshanbei Road, Shanghai 200062, China
| | - Yuchen Dong
- School of Chemistry and Molecular Engineering, East China Normal University, 3663 Zhongshanbei Road, Shanghai 200062, China
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5
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Sharma S, Takkella D, Vishwakarma J, Gavvala K. Spectroscopy and dynamics of beta-lactoglobulin complexed with rifampicin. J Biomol Struct Dyn 2023:1-14. [PMID: 37904335 DOI: 10.1080/07391102.2023.2275191] [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: 05/10/2023] [Accepted: 10/20/2023] [Indexed: 11/01/2023]
Abstract
In this paper, we report the binding interaction of milk protein, beta-lactoglobulin (BLG), with an antibiotic against tuberculosis, rifampicin (RIF). BLG intrinsic fluorescence from tryptophan (Trp) amino acids was monitored to understand protein-drug interactions. Binding parameters and stoichiometry were estimated with the help of fluorescence spectral changes. Synchronous fluorescence spectroscopy was employed to exclusively monitor the Trp and Tyrosine (Tyr) environment in the presence of RIF. With the help of steady state fluorescence at different temperatures supported by time-resolved fluorescence, we confirmed that the protein forms a static complex with RIF. Thermodynamic parameters, ΔH and ΔS values, showed the involvement of hydrophobic forces between the RIF and BLG. Competitive displacement assay with ANS confirmed the BLG calyx as the binding site for RIF. Energy transfer mechanism from Trp to RIF was attributed to the fluorescence changes in protein upon complexation. The Förster resonance energy transfer (FRET) was used to find distance, energy transfer efficiency and rate of energy transfer between donor (BLG) and acceptor (RIF). Fourier-transform infrared (FTIR) spectroscopy was utilized for estimating changes in the secondary structure of BLG induced by RIF. Molecular docking was used to visualise the binding location of RIF on BLG. Molecular dynamics (MD) simulation studies showed a consistent binding interactions between BLG and RIF during the 100 ns simulation period and this well supported the increased beta sheet content in FTIR. Overall our results establish the potential of intrinsic fluorescence of BLG in combination with biophysical tools to rationalize drug-protein interactions.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Sudhanshu Sharma
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, India
| | - Dineshbabu Takkella
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, India
| | - Jyoti Vishwakarma
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, India
| | - Krishna Gavvala
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, India
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6
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Laneri F, Conte C, Parisi C, Catanzano O, Fraix A, Quaglia F, Sortino S. On the photobehaviour of curcumin in biocompatible hosts: The role of H-abstraction in the photodegradation and photosensitization. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2023; 245:112756. [PMID: 37454510 DOI: 10.1016/j.jphotobiol.2023.112756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 06/24/2023] [Accepted: 07/10/2023] [Indexed: 07/18/2023]
Abstract
Curcumin (CUR) is a naturally occurring pigment extensively studied due to its therapeutic activity and delivered by suitable nanocarriers to overcome poor solubility in aqueous media. The significant absorption of CUR in the visible blue region has prompted its use as a potential phototherapeutic agent in treating infectious and cancer diseases, although the mechanism underlying the phototoxic effects is still not fully understood. This contribution investigates the photobehaviour of CUR within polymeric micelles, microemulsions, and zein nanoparticles, chosen as biocompatible nanocarriers, and human serum albumin as a representative biomolecule. Spectroscopic studies indicate that in all host systems, the enolic tautomeric form of CUR is converted in a significant amount of the diketo form because of the perturbation of the intramolecular hydrogen bond. This leads to intermolecular H-abstraction from the host components by the lowest excited triplet state of CUR with the formation of the corresponding ketyl radical, detected by nanosecond laser flash photolysis. This radical is oxidized by molecular oxygen, likely generating peroxyl and hydroperoxyl radical species, unless in Zein, reasonably due to the poor availability of oxygen in the closely packed structure of this nanocarrier. In contrast, no detectable formation of singlet oxygen was revealed in all the systems. Overall these results highlight the key role of the H-abstraction process over singlet oxygen sensitization as a primary photochemical pathway strictly dictated by the specific features of the microenvironment, providing new insights into the photoreactivity of CUR in biocompatible hosts that can also be useful for a better understanding of its phototoxicity mechanism.
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Affiliation(s)
- Francesca Laneri
- PhotoChemLab, Department of Drug and Health Sciences, University of Catania, I-95125 Catania, Italy
| | - Claudia Conte
- Drug Delivery Laboratory, Department of Pharmacy, University of Napoli Federico II, I-80131 Napoli, Italy
| | - Cristina Parisi
- PhotoChemLab, Department of Drug and Health Sciences, University of Catania, I-95125 Catania, Italy
| | - Ovidio Catanzano
- Drug Delivery Laboratory, Department of Pharmacy, University of Napoli Federico II, I-80131 Napoli, Italy
| | - Aurore Fraix
- PhotoChemLab, Department of Drug and Health Sciences, University of Catania, I-95125 Catania, Italy.
| | - Fabiana Quaglia
- Drug Delivery Laboratory, Department of Pharmacy, University of Napoli Federico II, I-80131 Napoli, Italy
| | - Salvatore Sortino
- PhotoChemLab, Department of Drug and Health Sciences, University of Catania, I-95125 Catania, Italy
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7
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Mousazadeh Moghaddam Pour A, Dezhampanah H. Binding elucidation of azo dyes with human serum albumin via spectroscopic approaches and molecular docking techniques. J Biomol Struct Dyn 2023; 41:12966-12977. [PMID: 36709446 DOI: 10.1080/07391102.2023.2171130] [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: 07/26/2022] [Accepted: 01/11/2023] [Indexed: 01/30/2023]
Abstract
The large number of synthesized azo dyes is widely applied in the food, pharmaceutical, cosmetic, textile, and leather industries. In this study, the binding mechanism of two synthesized dyes with human serum albumin (HSA); as the most abundant protein in plasma; was elucidated by fluorescence spectroscopy, Fourier-transform infrared spectroscopy and molecular modeling methods. The fluorescence quenching measurements showed that each dye can quench the intrinsic fluorescence of HSA via a dynamic quenching mechanism with an increase in concentration. From the thermodynamic data observations, revealed that the binding process is a spontaneous molecular force for each dye with HSA due to hydrophobic interactions and hydrogen bonding. FT-IR spectra showed that the secondary structure of the protein changes due to interaction of each dye with HSA. Furthermore, docking simulation demonstrated that the probable binding location of both dyes is subdomain IIA of HSA (Sudlow site I) and that complex formed is stabilized by hydrophobic interactions and hydrogen bonding.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
| | - Hamid Dezhampanah
- Department of Chemistry, Faculty of Science, University of Guilan, Rasht, Iran
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8
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Qashqoosh MTA, Alahdal FAM, Manea YK, Zubair S, Khan RH, Khan AM, Naqvi S. Binding ability of roxatidine acetate and roxatidine acetate supported chitosan nanoparticles towards bovine serum albumin: characterization, spectroscopic and molecular docking studies. J Biomol Struct Dyn 2023; 41:106-124. [PMID: 34821213 DOI: 10.1080/07391102.2021.2004234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The RxAc drug loaded on Tween80-chitosan-TPP nanoparticles (NRxAc) has been characterized and probed by UV-Vis, PXRD, FTIR, DLS and SEM technique. The physicochemical characteristics of NRxAc have been employed and evaluated for formulation of drug, particle size, external morphology, drug content and in vitro drug release. Multi-spectroscopic (i.e. fluorescence, UV-Vis, CD spectroscopy) and molecular docking techniques were also used to study the interaction of BSA with RxAc and NRxAc. RxAc and NRxAc quenched the fluorescence emission of BSA via a static quenching mechanism. The experimental data of Fluorescence demonstrated that the binding constant of RxAc and NRxAc were found around 104 L.mol-1, which suggests moderate binding affinity with BSA via hydrophobic forces. Through the site marker displacement experiments and molecular docking, the probable binding location of RxAc and NRxAc has been suggested in subdomain IB (site III) of BSA. Altogether, the results of present study can provide an important insight and a great deal of helpful information for future design of antiulcer drugs. Hence, The RxAc-loaded chitosan nanoparticles produced might be utilized as a successful tool for developing and using antiulcer drugs.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Mohsen T A Qashqoosh
- Department of Chemistry, Aligarh Muslim University, Aligarh, Uttar Pradesh, India.,Department of Chemistry, University of Aden, Aden, Yemen
| | - Faiza A M Alahdal
- Department of Chemistry, Aligarh Muslim University, Aligarh, Uttar Pradesh, India.,Department of Chemistry, Hodeidah University, Al Hudaydah, Yemen
| | - Yahiya Kadaf Manea
- Department of Chemistry, Aligarh Muslim University, Aligarh, Uttar Pradesh, India.,Department of Chemistry, University of Aden, Aden, Yemen
| | - Swaleha Zubair
- Department of Computer science, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Rizwan Hasan Khan
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Amjad Mumtaz Khan
- Department of Chemistry, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Saeeda Naqvi
- Department of Chemistry, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
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9
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Comparison of the interactions of fanetizole with pepsin and trypsin: Spectroscopic and molecular docking approach. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120095] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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10
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Jeličić ML, Amidžić Klarić D, Kovačić J, Verbanac D, Mornar A. Accessing Lipophilicity and Biomimetic Chromatography Profile of Biologically Active Ingredients of Botanicals Used in the Treatment of Inflammatory Bowel Disease. Pharmaceuticals (Basel) 2022; 15:ph15080965. [PMID: 36015114 PMCID: PMC9413514 DOI: 10.3390/ph15080965] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 07/27/2022] [Accepted: 08/01/2022] [Indexed: 11/16/2022] Open
Abstract
In the present study, various procedures have been compared for the determination of lipophilicity, hydrophobicity, and plasma protein binding of curcuminoids, boswellic acids, andrographolides, and piperine as biologically active ingredients of botanicals used in IBD treatment. Our results have shown that IAM-HPLC assay is the most suitable one for lipophilicity determination of all analytes regardless of their class and botanical source. HSA-HPAC and AGP-HPAC assays revealed that all investigated compounds have a higher affinity for HSA which is the most abundant protein in human plasma. The high affinity of biologically active compounds to all biological structures (phospholipids and proteins) admonishes that their small portion is available for therapeutic effects in IBD patients. Our experimental research is complemented by various theoretical approaches based on different algorithms for pharmacokinetic properties prediction. The similarities between experimental and calculated values were evaluated using PCA and CA as a statistical tool. The statistical analysis implies that plasma protein binding is a complex process, and theoretical approaches still cannot fully replace experimental ones.
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Affiliation(s)
- Mario-Livio Jeličić
- Department of Pharmaceutical Analysis, Faculty of Pharmacy and Biochemistry, University of Zagreb, A. Kovačića 1, 10000 Zagreb, Croatia
| | - Daniela Amidžić Klarić
- Department of Pharmaceutical Analysis, Faculty of Pharmacy and Biochemistry, University of Zagreb, A. Kovačića 1, 10000 Zagreb, Croatia
| | - Jelena Kovačić
- Department of Pharmaceutical Analysis, Faculty of Pharmacy and Biochemistry, University of Zagreb, A. Kovačića 1, 10000 Zagreb, Croatia
| | - Donatella Verbanac
- Department of Medical Biochemistry and Hematology, Faculty of Pharmacy and Biochemistry, University of Zagreb, A. Kovačića 1, 10000 Zagreb, Croatia
| | - Ana Mornar
- Department of Pharmaceutical Analysis, Faculty of Pharmacy and Biochemistry, University of Zagreb, A. Kovačića 1, 10000 Zagreb, Croatia
- Correspondence:
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11
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Simulation-guided relationships and interaction characteristics of human CtBP1 in complex with protocatechualdehyde. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Lin S, Cai X, Chen H, Xu Y, Wu J, Wang S. Development of fish gelatin-chitooligosaccharide conjugates through the Maillard reaction for the encapsulation of curcumin. Curr Res Food Sci 2022; 5:1625-1639. [PMID: 36164327 PMCID: PMC9507993 DOI: 10.1016/j.crfs.2022.09.019] [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: 07/14/2022] [Revised: 08/30/2022] [Accepted: 09/16/2022] [Indexed: 11/30/2022] Open
Abstract
The poor water solubility, bioavailability and stability of bioactive compounds have become the bottleneck restricting their wide application, thus developing a functional carrier to realize the efficient encapsulation and activity improvement of active hydrophobic substances has become a research hotspot. In this work, a functional glycosylated fish gelatin (called FG-COS conjugates) carrier based on fish gelatin (FG) and chitooligosaccharide (COS) via Maillard reaction was developed. The functional carrier exhibited good antioxidant activity and high encapsulation of curcumin (Cur). Enhanced antioxidant effect of Cur loaded in FG-COS conjugates (called FG–COS–Cur nanoparticles) was achieved, showing remarkable UV protection on Cur and enhanced intracellular antioxidant activity of FG–COS–Cur nanoparticles. Remarkably, FG–COS–Cur nanoparticles increased the cell viability of H2O2-induced oxidative damage Caco-2 cells, drastically reduced the levels of reactive oxygen species (ROS) and lactate dehydrogenase (LDH), and significantly increased intracellular antioxidant enzyme activities, which all exhibited a dose-response relationship. These findings suggested that the FG-COS conjugates with intrinsic antioxidant activity could effectively encapsulate Cur and improved bioavailability for hydrophobic active molecules in functional food field. Functional carrier (FG-COS conjugates) based on glycosylation FG with COS was developed. FG-COS conjugates exhibited good antioxidant activity and excellent loading capacity of Cur. FG-COS conjugates showed remarkable UV protection on Cur. FG–COS–Cur nanoparticles displayed a positive effect on the antioxidant of Cur. FG–COS–Cur nanoparticles significantly attenuated oxidative stress damage in Caco-2 cell.
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Affiliation(s)
| | | | | | | | - Jiulin Wu
- Corresponding author. College of Biological Science and Engineering, Fuzhou University, Fuzhou, 350108, China.
| | - Shaoyun Wang
- Corresponding author. College of Biological Science and Engineering, Fuzhou University, Fuzhou, 350108, China.
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13
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Tao Y, Fan Y, Liu G, Zhang Y, Wang M, Wang X, Li L. Interaction study of astilbin, isoastilbin and neoastilbin toward CYP2D6 by multi-spectroscopy and molecular docking. LUMINESCENCE 2021; 36:1412-1421. [PMID: 33949102 DOI: 10.1002/bio.4065] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 04/23/2021] [Accepted: 04/28/2021] [Indexed: 12/23/2022]
Abstract
Astilbin, isoastilbin and neoastilbin are the three flavonoid isomers prevalent in Rhizoma Smilax glabra. The interactions between human cytochrome P450 2D6 (CYP2D6) and the three isomers were investigated by multiple spectroscopic coupled with molecular docking. As a result, the fluorescence intensity of CYP2D6 was quenched statically by the three isomers. Meanwhile, astilbin had the strongest binding ability to CYP2D6, followed by isoastilbin and neoastilbin under the identical temperature. Synchronous fluorescence, three-dimensional fluorescence, ultraviolet-visible spectroscopy, circular dichroism and Fourier-transform infrared spectra confirmed that the conformation and micro-environment of CYP2D6 protein were changed after binding with the three isomers. As suggested from molecular docking, the three isomers had strong binding affinity to CYP2D6 via the bonding of hydrogen and van der Waals forces, and the results were in agreement with the fluorescence results. The findings here suggested that astilbin, isoastilbin and neoastilbin may cause the herb-drug interactions for their inhibition of CYP2D6 activity.
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Affiliation(s)
- Yanzhou Tao
- The College of Chemistry, Changchun Normal University, Changchun, China
| | - Yangyang Fan
- The College of Chemistry, Changchun Normal University, Changchun, China
| | - Guiming Liu
- The College of Chemistry, Changchun Normal University, Changchun, China
| | - Yuhang Zhang
- The College of Chemistry, Changchun Normal University, Changchun, China
| | - Meizi Wang
- The College of Chemistry, Changchun Normal University, Changchun, China
| | - Xiaolin Wang
- The College of Chemistry, Changchun Normal University, Changchun, China
| | - Li Li
- The College of Chemistry, Changchun Normal University, Changchun, China
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