1
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Holowinski P, Dybowski MP. Determination of 3- and 4-chloromethcathinone interactions with plasma proteins: study involving analytical and theoretical methods. Forensic Toxicol 2024; 42:111-124. [PMID: 38108940 PMCID: PMC11269353 DOI: 10.1007/s11419-023-00677-7] [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: 05/14/2023] [Accepted: 09/27/2023] [Indexed: 12/19/2023]
Abstract
PURPOSE The purpose of this paper was to determine 3- and 4-chloromethcathinone (3- and 4-CMC) binding degree and possible binding interaction modes with human serum albumin (HSA) using analytical and theoretical methods. METHODS Experimental determination of 3- and 4-CMC binding degree with HSA was performed using gas chromatography-tandem mass spectrometry preceded by the equilibrium dialysis (ED) and ultrafiltration (UF). Nuclear magnetic resonance (NMR) spectroscopy was used to determine 3- and 4-CMC epitope-binding maps and possible binding sites in HSA. The molecular docking and molecular dynamics were employed to obtain detailed information about binding modes of 3- and 4-CMC enantiomers in HSA. RESULTS As follows from the presented data, the degree of binding of 3- and 4-CMC is at a similar level of approx. 80%. This indicates a relatively strong binding of CMC to plasma proteins. The model studies employing the NMR spectroscopy and molecular simulations indicate that both CMCs bind to HSA. The whole 3- and 4-CMC molecules are embedded in the binding sites, with aromatic moieties being in the closest contact with the HSA residues. Moreover, conducted experiments show that Sudlow site II is the main binding center for 3- and 4-CMC and Sudlow site I acts as the secondary binding site. CONCLUSIONS Although many studies describe pharmacological and toxicological properties of synthetic cathinones (SC), the data taking SCs binding in plasma into consideration are scarce. To our knowledge, this is the first report presenting comprehensive experimental and theoretical characterization of 3- and 4-CMC binding with plasma proteins.
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Affiliation(s)
- Piotr Holowinski
- Faculty of Chemistry, Department of Chromatography, Institute of Chemical Sciences, Maria Curie Sklodowska University in Lublin, 20-031, Lublin, Poland
| | - Michal P Dybowski
- Faculty of Chemistry, Department of Chromatography, Institute of Chemical Sciences, Maria Curie Sklodowska University in Lublin, 20-031, Lublin, Poland.
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2
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Beg M, Maji A, Aktara MN, Kundu S, Paria S, Shit B, Dhal A, Islam MM, Hossain M. Multi-spectroscopic and thermodynamic profiles on HSA binding of Cassia fistula leaf based potential antibacterial and anticancer silver nanoparticles. J Biomol Struct Dyn 2023:1-13. [PMID: 37990582 DOI: 10.1080/07391102.2023.2283148] [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: 06/08/2023] [Accepted: 11/06/2023] [Indexed: 11/23/2023]
Abstract
Here, a simple, one step, lucrative and green synthesis of Cassia fistula leaf extract inspired antibacterial silver nanoparticles (CF-SNPs) was provided. Characterization of these CF-SNPs were achieved by using various spectroscopic techniques for instance Ultraviolet Visible (UV-Vis) Spectroscopy, Fourier-Transform Infrared (FTIR) Spectroscopy, Dynamic Light Scattering (DLS), Transmission Electron Microscopy (TEM) and Energy Dispersive X-ray (EDX). The effective antibacterial action of the CF-SNPs was checked against Escherichia coli (E. Coli) DH5-Alpha where MIC was 1.6 nM. Anticancer dynamism of the CF-SNPs was also tested in opposition to skin melanoma, A375 cell lines in which 4.4 nM was IC50. The binding proneness of HSA towards CF-SNPs was investigated by means of UV-Vis Spectroscopy, Fluorescence Spectroscopy, Time Resolved Fluorescence Spectroscopy, Circular Dichroism (CD) Spectroscopy, Dynamic Light Scattering, and Isothermal Titration Colorimetry (ITC). CD spectroscopy established minor secondary structural exchange of HSA in HSA-CF-SNPs complex. ITC and Time Resolved Fluorescence Spectroscopy verified the static type quenching mechanism involved in HSA-CF-SNPs complex. The binding constant was 3.45 × 108 M-1 at 298.15K from ITC study. The thermodynamic parameters showed that the interaction was occurred spontaneously by the hydrophilic forces and hydrogen bonding.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Maidul Beg
- Department of Chemistry, Vidyasagar University, Midnapore, India
| | - Anukul Maji
- Department of Chemistry, Vidyasagar University, Midnapore, India
| | - Mt Nasima Aktara
- Department of Chemistry, Vidyasagar University, Midnapore, India
| | - Somenath Kundu
- Department of Chemistry, Vidyasagar University, Midnapore, India
| | - Samaresh Paria
- Department of Chemistry, Vidyasagar University, Midnapore, India
| | - Basudev Shit
- Department of Chemistry, Vidyasagar University, Midnapore, India
| | - Asima Dhal
- Department of Chemistry, Vidyasagar University, Midnapore, India
| | | | - Maidul Hossain
- Department of Chemistry, Vidyasagar University, Midnapore, India
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3
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Bonvicini A, Champagne B. Third-harmonic scattering optical activity: QED theory, symmetry considerations, and quantum chemistry applications in the framework of response theory. J Chem Phys 2023; 159:114107. [PMID: 37712789 DOI: 10.1063/5.0165425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 08/28/2023] [Indexed: 09/16/2023] Open
Abstract
In this work, expressions for the third-harmonic scattering optical activity (THS-OA) spectroscopic responses are derived by combining molecular quantum electrodynamics (QED) and response theory, allowing their computational implementation. The QED theory of THS-OA presented here is meant to be an extension of a previous study by Andrews [Symmetry 12, 1466 (2020)]. In particular, the THS-OA phenomena are described within the Power-Zienau-Woolley multipolar Hamiltonian by including the electric-dipole, magnetic-dipole, and electric-quadrupole interactions for the absorption as well as the emission processes between the dynamic electromagnetic field (the photons) and matter. Moreover, we derive the expressions for the differential scattering ratios as a function of the scattering angle defined by the wavevectors of the incident and scattered photons. We show how the pure and mixed second hyperpolarizabilities can be obtained in the framework of response theory as specific cases of a generic cubic response function, thus enabling the computational implementation of THS-OA spectroscopy. We prove the origin-independence of the theory for exact wavefunctions. Preliminary computations on a prototype chiral molecule (methyloxirane) are considered together with an analysis of the basis set convergence and of the origin-dependence.
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Affiliation(s)
- Andrea Bonvicini
- Theoretical Chemistry Laboratory, Unit of Theoretical and Structural Physical Chemistry, Namur Institute of Structured Matter, University of Namur, B-5000 Namur, Belgium
| | - Benoît Champagne
- Theoretical Chemistry Laboratory, Unit of Theoretical and Structural Physical Chemistry, Namur Institute of Structured Matter, University of Namur, B-5000 Namur, Belgium
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4
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Bauer A, Elamurugan S, Tolba SA, Fatima, Nega E, Lima IT, Xia W, Sun D. A portable elliptical dichroism spectrometer targeting secondary structural features of tumorous protein for pancreatic cancer detection. Biosens Bioelectron 2023; 222:114934. [PMID: 36455371 PMCID: PMC9792437 DOI: 10.1016/j.bios.2022.114934] [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: 09/29/2022] [Revised: 11/11/2022] [Accepted: 11/17/2022] [Indexed: 11/25/2022]
Abstract
Stereochemical analysis is essential for understanding the complex function of biomolecules. Various direct and indirect approaches can be used to explore the allosteric configuration. However, the size, cost, and delicate nature of these systems limit their biomedical usage. Here, we constructed elliptical dichroism (ED) spectrometer for biomedical applications, whose performance is validated by experiment and theoretical simulation (Jones/Mueller calculus and time-dependent density-functional theory). Instead of complicated control of circular polarization, ED spectrometer adopted the absorbance of left- and right-oriented elliptically polarized light. With a simplified design, we demonstrated the potential of ED spectrometry as an alternative for secondary structural analysis of biomolecules, their conformation and chirality. It not only provides a portable, low-cost alternative to the sophisticated instruments currently used for structural analysis of biomolecules but also provides superior translational features: low sample consumption(200 μl), easy operation, and multiple working modes, for noninvasive cancer detection.
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Affiliation(s)
- Aaron Bauer
- Biomedical Engineering Program, North Dakota State University, 1401 Centennial Blvd, Engineering Administration, Room 203, Fargo, ND, 58102, USA
| | - Santhalingam Elamurugan
- Biomedical Engineering Program, North Dakota State University, 1401 Centennial Blvd, Engineering Administration, Room 203, Fargo, ND, 58102, USA
| | - Sara A Tolba
- Materials and Nanotechnology Program, North Dakota State University, 1410 North 14th Avenue, CIE 201, Fargo, ND, 58102, USA
| | - Fatima
- Department of Mathematics, Computer Science and Physics, Roanoke College, Salem, VA, 24153, USA; Department of Civil, Construction and Environmental Engineering, North Dakota State University, 1410 North 14th Avenue, CIE 201, Fargo, ND, 58102, USA
| | - Ejjigu Nega
- Biomedical Engineering Program, North Dakota State University, 1401 Centennial Blvd, Engineering Administration, Room 203, Fargo, ND, 58102, USA
| | - Ivan T Lima
- Department of Electrical and Computer Engineering, North Dakota State University, 1411 Centennial Blvd., 101S, Fargo, ND, 58102, USA
| | - Wenjie Xia
- Biomedical Engineering Program, North Dakota State University, 1401 Centennial Blvd, Engineering Administration, Room 203, Fargo, ND, 58102, USA; Materials and Nanotechnology Program, North Dakota State University, 1410 North 14th Avenue, CIE 201, Fargo, ND, 58102, USA; Department of Civil, Construction and Environmental Engineering, North Dakota State University, 1410 North 14th Avenue, CIE 201, Fargo, ND, 58102, USA
| | - Dali Sun
- Biomedical Engineering Program, North Dakota State University, 1401 Centennial Blvd, Engineering Administration, Room 203, Fargo, ND, 58102, USA; Department of Electrical and Computer Engineering, North Dakota State University, 1411 Centennial Blvd., 101S, Fargo, ND, 58102, USA.
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5
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Biocompatible Triple-Helical Recombinant Collagen Dressings for Accelerated Wound Healing in Microneedle-Injured and Photodamaged Skin. COSMETICS 2023. [DOI: 10.3390/cosmetics10010031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023] Open
Abstract
Skin rejuvenation procedures such as microneedling and laser resurfacing have gained global popularity in medical cosmetology, leading to acute skin wounds with persistent pain, erythema, and edema. A variety of dressings have been explored to repair these postoperative skin injuries; however, their inadequate biocompatibility and bioactivity may raise concerns about undesirable efficacy and complications. Herein, we developed biocompatible and nonirritating triple-helical recombinant collagen (THRC) dressings for accelerated healing of microneedle-injured and photodamaged acute skin wounds. Circular dichroism (CD) measurements of THRC from various batches exhibited triple-helical structure characteristics of collagen. Cell experiments using L929 fibroblasts revealed that THRC dressings possess superior biocompatibility and bioactivity, significantly elevating the proliferation and adhesion of fibroblasts. In vivo, skin irritation tests of New Zealand rabbits demonstrated that the THRC dressings are gentle, safe, and non-irritating. Histological analysis of the animal model studies in photodamaged skin wounds using H&E and Masson’s trichrome staining revealed that 4 days of treatment with the THRC dressings effectively healed the damaged dermis by accelerating re-epithelialization and enhancing collagen deposition. In vivo studies of microneedle-injured rat defects showed that THRC dressings of varying concentrations exhibit the same rapid epithelialization rates at 48 h as commercial bovine collagen dressings. The highly biocompatible and bioactive recombinant collagen dressings may provide an advanced treatment of acute skin wounds, indicating attractive applications in postoperative care of facial rejuvenation.
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6
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Liao Y, Hu X, Pan J, Zhang G. Inhibitory Mechanism of Baicalein on Acetylcholinesterase: Inhibitory Interaction, Conformational Change, and Computational Simulation. Foods 2022; 11:foods11020168. [PMID: 35053900 PMCID: PMC8774682 DOI: 10.3390/foods11020168] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 12/31/2021] [Accepted: 01/04/2022] [Indexed: 02/04/2023] Open
Abstract
Alzheimer’s disease (AD) is the most prevalent chronic neurodegenerative disease in elderly individuals, causing dementia. Acetylcholinesterase (AChE) is regarded as one of the most popular drug targets for AD. Herbal secondary metabolites are frequently cited as a major source of AChE inhibitors. In the current study, baicalein, a typical bioactive flavonoid, was found to inhibit AChE competitively, with an associated IC50 value of 6.42 ± 0.07 µM, through a monophasic kinetic process. The AChE fluorescence quenching by baicalein was a static process. The binding constant between baicalein and AChE was an order of magnitude of 104 L mol−1, and hydrogen bonding and hydrophobic interaction were the major forces for forming the baicalein−AChE complex. Circular dichroism analysis revealed that baicalein caused the AChE structure to shrink and increased its surface hydrophobicity by increasing the α-helix and β-turn contents and decreasing the β-sheet and random coil structure content. Molecular docking revealed that baicalein predominated at the active site of AChE, likely tightening the gorge entrance and preventing the substrate from entering and binding with the enzyme, resulting in AChE inhibition. The preceding findings were confirmed by molecular dynamics simulation. The current study provides an insight into the molecular-level mechanism of baicalein interaction with AChE, which may offer new ideas for the research and development of anti-AD functional foods and drugs.
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Affiliation(s)
- Yijing Liao
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; (Y.L.); (X.H.); (J.P.)
- School of Pharmacy, Nanchang University, Nanchang 330006, China
| | - Xing Hu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; (Y.L.); (X.H.); (J.P.)
| | - Junhui Pan
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; (Y.L.); (X.H.); (J.P.)
| | - Guowen Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; (Y.L.); (X.H.); (J.P.)
- Correspondence:
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7
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Ge R, Zhu Y, Wang H, Gu S. Methods and Application of Absolute Configuration Assignment for Chiral Compounds. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202108047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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8
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Rasuleva K, Elamurugan S, Bauer A, Khan M, Wen Q, Li Z, Steen P, Guo A, Xia W, Mathew S, Jansen R, Sun D. β-Sheet Richness of the Circulating Tumor-Derived Extracellular Vesicles for Noninvasive Pancreatic Cancer Screening. ACS Sens 2021; 6:4489-4498. [PMID: 34846848 PMCID: PMC8715533 DOI: 10.1021/acssensors.1c02022] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
![]()
Tumor-derived extracellular
vesicles (EVs) are under intensive
study for their potential as noninvasive diagnosis biomarkers. Most
EV-based cancer diagnostic assays trace supernumerary of a single
cancer-associated marker or marker signatures. These types of biomarker
assays are either subtype-specific or vulnerable to be masked by high
background signals. In this study, we introduce using the β-sheet
richness (BR) of the tumor-derived EVs as an effective way to discriminate
EVs originating from malignant and nonmalignant cells, where EV contents
are evaluated as a collective attribute rather than single factors.
Circular dichroism, Fourier transform infrared spectroscopy, fluorescence
staining assays, and a de novo workflow combining proteomics, bioinformatics,
and protein folding simulations were employed to validate the collective
attribute at both cellular and EV levels. Based on the BR of the tumorous
EVs, we integrated immunoprecipitation and fluorescence labeling targeting
the circulating tumor-derived EVs in serum and developed the process
into a clinical assay, named EvIPThT. The assay can distinguish patients
with and without malignant disease in a pilot cohort, with weak correlations
to prognosis biomarkers, suggesting the potential for a cancer screening
panel with existing prognostic biomarkers to improve overall performance.
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Affiliation(s)
- Komila Rasuleva
- Department of Electrical and Computer Engineering, North Dakota State University, 1411 Centennial Blvd., 101S, Fargo, North Dakota 58102, United States
| | - Santhalingam Elamurugan
- Biomedical Engineering Program, North Dakota State University, 1401 Centennial Blvd, Engineering Administration, Room 203, Fargo, North Dakota 58102, United States
| | - Aaron Bauer
- Biomedical Engineering Program, North Dakota State University, 1401 Centennial Blvd, Engineering Administration, Room 203, Fargo, North Dakota 58102, United States
| | - Mdrakibhasan Khan
- Department of Electrical and Computer Engineering, North Dakota State University, 1411 Centennial Blvd., 101S, Fargo, North Dakota 58102, United States
| | - Qian Wen
- Department of Statistics, North Dakota State University, 1230 Albrecht Blvd, Fargo, North Dakota 58102, United States
| | - Zhaofan Li
- Department of Civil, Construction and Environmental Engineering, North Dakota State University, 1410 North 14th Avenue, CIE 201, Fargo, North Dakota 58102, United States
| | - Preston Steen
- Sanford Roger Maris Cancer Center, 820 4th Street N, Fargo, North Dakota 58122, United States
| | - Ang Guo
- Department of Pharmaceutical Sciences, North Dakota State University, 1401 Albrecht Blvd, Fargo, North Dakota 58102, United States
| | - Wenjie Xia
- Department of Civil, Construction and Environmental Engineering, North Dakota State University, 1410 North 14th Avenue, CIE 201, Fargo, North Dakota 58102, United States
| | - Sijo Mathew
- Department of Pharmaceutical Sciences, North Dakota State University, 1401 Albrecht Blvd, Fargo, North Dakota 58102, United States
| | - Rick Jansen
- Department of Public Health, North Dakota State University, 1455 14th Ave N, Fargo, North Dakota 58102, United States
- Genomics and Bioinformatics Program, North Dakota State University, 1230 161/2 Street North, Fargo, North Dakota 58102, United States
| | - Dali Sun
- Department of Electrical and Computer Engineering, North Dakota State University, 1411 Centennial Blvd., 101S, Fargo, North Dakota 58102, United States
- Biomedical Engineering Program, North Dakota State University, 1401 Centennial Blvd, Engineering Administration, Room 203, Fargo, North Dakota 58102, United States
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9
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Kuhar N, Sil S, Umapathy S. Potential of Raman spectroscopic techniques to study proteins. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 258:119712. [PMID: 33965670 DOI: 10.1016/j.saa.2021.119712] [Citation(s) in RCA: 87] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 02/23/2021] [Accepted: 03/12/2021] [Indexed: 05/18/2023]
Abstract
Proteins are large, complex molecules responsible for various biological processes. However, protein misfolding may lead to various life-threatening diseases. Therefore, it is vital to understand the shape and structure of proteins. Despite numerous techniques, a mechanistic understanding of the protein folding process is still unclear. Therefore, new techniques are continually being explored. In the present article, we have discussed the importance of Raman spectroscopy, Raman Optical Activity (ROA) and various other advancements in Raman spectroscopy to understand protein structure and conformational changes based on the review of our earlier work and recent literature. A Raman spectrum of a protein provides unique signatures for various secondary structures like helices, beta-sheets, turns, random structures, etc., and various amino acid residues such as tyrosine, tryptophan, and phenylalanine. We have shown how Raman spectra can differentiate between bovine serum albumin (BSA) and lysozyme protein based on their difference in sequence and structure (primary, secondary and tertiary). Although it is challenging to elucidate the structure of a protein using a Raman spectrum alone, Raman spectra can be used to differentiate small changes in conformations of proteins such as BSA during melting. Various new advancements in technique and data analyses in Raman spectroscopic studies of proteins have been discussed. The last part of the review focuses on the importance of the ROA spectrum to understand additional features about proteins. The ROA spectrum is rich in information about the protein backbone due to its rigidity compared to its side chains. Furthermore, the ROA spectra of lysozyme and BSA have been presented to show how ROA provides extra information about the solvent properties of proteins.
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Affiliation(s)
- Nikki Kuhar
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bengaluru 560 012, Karnataka, India
| | - Sanchita Sil
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bengaluru 560 012, Karnataka, India; Defence Bioengineering and Electromedical Laboratory (DEBEL), Defence Research and Development Organization (DRDO), C V Raman Nagar, Bangalore 560 093, Karnataka, India
| | - Siva Umapathy
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bengaluru 560 012, Karnataka, India; Department of Instrumentation & Applied Physics, Indian Institute of Science, Bengaluru 560 012, Karnataka, India.
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10
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Gong GH, Han S, Huang XL, Xie LP, Zhang W, Xu L, Hu YJ. The Expression of Recombinant Human Serum Albumin in the Mammary Gland of Transgenic Mice. PHARMACEUTICAL FRONTS 2021. [DOI: 10.1055/s-0041-1730985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
AbstractHuman serum albumin (HSA) is widely used in the clinic for the treatment of several diseases in large amount each year. With the increasing demands of HSA in clinic and limited blood resource, recombinant HSA (rHSA) is becoming an attractive and alternative source for HSA production. In this study, we aimed to express rHSA in the mammary glands of transgenic mice by using a tissue-specific promoter and other regulatory elements. An rHSA expression vector was constructed bearing the cDNA and first intron of HSA under the control of bovine αs1-casein promoter with a 2 × chicken β-globin insulator in the front. Transgenic mice were generated and reverse transcription polymerase chain reaction showed that rHSA was expressed only in the mammary gland, indicating the tissue specificity of the bovine αs1-casein promoter in directing transgene transcription in transgenic mice. Enzyme-linked immunosorbent assay test showed that rHSA was successfully secreted into the milk of transgenic mice with the highest level at 1.98 ± 0.12 g/L. Our results indicate the ability of the bovine αs1-casein promoter to induce successful expression of rHSA in the mammary gland of transgenic mice.
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Affiliation(s)
- Gui-Hua Gong
- Biopharmaceutical Department, China State Institute of Pharmaceutical Industry, Shanghai, People's Republic of China
| | - Shu Han
- Biopharmaceutical Department, China State Institute of Pharmaceutical Industry, Shanghai, People's Republic of China
| | - Xiao-Ling Huang
- Biopharmaceutical Department, China State Institute of Pharmaceutical Industry, Shanghai, People's Republic of China
| | - Li-Ping Xie
- Biopharmaceutical Department, China State Institute of Pharmaceutical Industry, Shanghai, People's Republic of China
| | - Wei Zhang
- Biopharmaceutical Department, China State Institute of Pharmaceutical Industry, Shanghai, People's Republic of China
| | - Lei Xu
- Biopharmaceutical Department, China State Institute of Pharmaceutical Industry, Shanghai, People's Republic of China
| | - You-Jia Hu
- Biopharmaceutical Department, China State Institute of Pharmaceutical Industry, Shanghai, People's Republic of China
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11
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Scott M, Rehn DR, Norman P, Dreuw A. Ab Initio Excited-State Electronic Circular Dichroism Spectra Exploiting the Third-Order Algebraic-Diagrammatic Construction Scheme for the Polarization Propagator. J Phys Chem Lett 2021; 12:5132-5137. [PMID: 34030439 DOI: 10.1021/acs.jpclett.1c00839] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Excited-state rotatory strengths are reported for the first time at a correlated ab initio level, here with the algebraic diagrammatic construction scheme of the polarization propagator up to the third order. To demonstrate the capabilities of this computational approach, the gas phase S1 electronic circular dichroism spectra of the bicyclic ketones (1R)-camphor, (1R)-norcamphor, and (1R)-fenchone have been calculated at the ADC(3) level of theory. Furthermore, the solution excited-state spectra of the energetically lowest conformer of R-(+)-1,1'-bi(2-naphthol) have been computed with inclusion of a polarizable continuum model at the ADC(2) level of theory.
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Affiliation(s)
- Mikael Scott
- Interdisciplinary Center for Scientific Computing, Ruprecht-Karls University, Im Neuenheimer Feld 205, 69120 Heidelberg, Germany
| | - Dirk R Rehn
- Interdisciplinary Center for Scientific Computing, Ruprecht-Karls University, Im Neuenheimer Feld 205, 69120 Heidelberg, Germany
| | - Patrick Norman
- Department of Theoretical Chemistry and Biology, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, SE-106 91 Stockholm, Sweden
| | - Andreas Dreuw
- Interdisciplinary Center for Scientific Computing, Ruprecht-Karls University, Im Neuenheimer Feld 205, 69120 Heidelberg, Germany
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12
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Recent advances in the determination of unbound concentration and plasma protein binding of drugs: Analytical methods. Talanta 2021; 225:122052. [DOI: 10.1016/j.talanta.2020.122052] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 12/17/2020] [Accepted: 12/23/2020] [Indexed: 02/08/2023]
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13
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Aguilera-Garrido A, del Castillo-Santaella T, Yang Y, Galisteo-González F, Gálvez-Ruiz MJ, Molina-Bolívar JA, Holgado-Terriza JA, Cabrerizo-Vílchez MÁ, Maldonado-Valderrama J. Applications of serum albumins in delivery systems: Differences in interfacial behaviour and interacting abilities with polysaccharides. Adv Colloid Interface Sci 2021; 290:102365. [PMID: 33667972 DOI: 10.1016/j.cis.2021.102365] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 01/13/2021] [Accepted: 01/13/2021] [Indexed: 12/17/2022]
Abstract
One of the major applications of Serum Albumins is their use as delivery systems for lipophilic compounds in biomedicine. Their biomedical application is based on the similarity with Human Serum Albumin (HSA), as a fully biocompatible protein. In general, Bovine Serum Albumin (BSA) is treated as comparable to its human homologue and used as a model protein for fundamental studies since it is available in high amounts and well understood. This protein can act as a carrier for lipophilic compounds or as protective shell in an emulsion-based vehicle. Polysaccharides are generally included in these formulations in order to increase the stability and/or applicability of the carrier. In this review, the main biomedical applications of Albumins as drug delivery systems are first presented. Secondly, the differences between BSA and HSA are highlighted, exploring the similarities and differences between these proteins and their interaction with polysaccharides, both in solution and adsorbed at interfaces. Finally, the use of Albumins as emulsifiers for emulsion-based delivery systems, concretely as Liquid Lipid Nanocapsules (LLNs), is revised and discussed in terms of the differences encountered in the molecular structure and in the interfacial properties. The specific case of Hyaluronic Acid is considered as a promising additive with important applications in biomedicine. The literature works are thoroughly discussed highlighting similarities and differences between BSA and HSA and their interaction with polysaccharides encountered at different structural levels, hence providing routes to control the optimal design of delivery systems.
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14
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Scott M, Rehn DR, Coriani S, Norman P, Dreuw A. Electronic circular dichroism spectra using the algebraic diagrammatic construction schemes of the polarization propagator up to third order. J Chem Phys 2021; 154:064107. [DOI: 10.1063/5.0038315] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Affiliation(s)
- Mikael Scott
- Interdisciplinary Center for Scientific Computing, Ruprecht-Karls University, Im Neuenheimer Feld 205, 69120 Heidelberg, Germany
| | - Dirk R. Rehn
- Interdisciplinary Center for Scientific Computing, Ruprecht-Karls University, Im Neuenheimer Feld 205, 69120 Heidelberg, Germany
| | - Sonia Coriani
- DTU Chemistry, Technical University of Denmark, Kemitorvet Bldg. 207, DK-2800 Kongens Lyngby, Denmark
| | - Patrick Norman
- Department of Theoretical Chemistry and Biology, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, SE-106 91 Stockholm, Sweden
| | - Andreas Dreuw
- Interdisciplinary Center for Scientific Computing, Ruprecht-Karls University, Im Neuenheimer Feld 205, 69120 Heidelberg, Germany
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15
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Spencer SEF, Rodger A. Bayesian inference assessment of protein secondary structure analysis using circular dichroism data - how much structural information is contained in protein circular dichroism spectra? ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:359-368. [PMID: 33393941 DOI: 10.1039/d0ay01645d] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Circular dichroism spectroscopy is an important tool for determining the structural characteristics of biomolecules, particularly the secondary structure of proteins. In this paper we propose a Bayesian model that estimates the covariance structure within a measured spectrum and quantifies the uncertainty associated with the inferred secondary structures and characteristic spectra associated with each secondary structure type. Furthermore, we used tools from Bayesian model selection to determine the best secondary structure classification scheme and illustrate a technique for comparing whether or not two or more measured protein spectra share the same secondary structure. Our findings suggest that it is not possible to identify more than 3 distinct secondary structure classes from CD spectra above 175 nm. The inclusion of data from wavelengths between 175 and 200 nm did not substantially affect the ability to determine secondary structure fractions.
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16
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Ribeiro-Filho J, da Silva Brandi J, Ferreira Costa H, Carla de Paula Medeiros K, Alves Leite J, Pergentino de Sousa D, Regina Piuvezam M. Carvone Enantiomers Differentially Modulate IgE-Mediated Airway Inflammation in Mice. Int J Mol Sci 2020; 21:ijms21239209. [PMID: 33287119 PMCID: PMC7731315 DOI: 10.3390/ijms21239209] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Accepted: 11/09/2020] [Indexed: 12/17/2022] Open
Abstract
Carvone is a monoterpene found in nature in the form of enantiomers (S- and R-). While previous research has demonstrated the anti-inflammatory and anti-allergic effects of carvone, the influence of carvone enantiomeric composition on its anti-allergic activity remains to be investigated. This study aimed to evaluate the anti-allergic activity of carvone enantiomers in a murine model of airway allergic inflammation induced by sensitization and challenge with ovalbumin (OVA). The oral treatment with R-carvone or S-carvone 1 h before each challenge inhibited the number of leukocytes and eosinophils in the bronchoalveolar lavage (BAL). R-carvone inhibited leukocyte infiltration and mucus production in the lung, which was correlated with decreased production of OVA-specific IgE in the serum and increased concentrations of IL-10 in the BAL. On the other hand, the administration of S-carvone had little inhibitory effect on inflammatory infiltration and mucus production in the lung, which might be associated with increased production of IFN-γ in the BAL. When administered 1 h before each sensitization, both enantiomers inhibited eosinophil recruitment to the BAL but failed in decreasing the titers of IgE in the serum of allergic mice. Our data indicate that carvone enantiomers differentially modulated IgE-mediated airway inflammation in mice. In conclusion, unlike S-carvone, R-carvone has the potential to be used in anti-allergic drug development.
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Affiliation(s)
- Jaime Ribeiro-Filho
- Laboratório de Investigação em Genética e Hematologia Translacional, Instituto Gonçalo Moniz, FIOCRUZ, Salvador 40296-710, Brazil
- Correspondence: ; Tel.: +55-71-3176-2226
| | - Juliana da Silva Brandi
- Departamento de Farmácia, Centro de Ciências da Saúde, Unifaminas Centro Universitário, Muriaé 36880-000, Brazil;
| | | | | | - Jacqueline Alves Leite
- Departamento de Farmacologia, Instituto de Ciências Biológicas, UFG, Goiânia 74690-900, Brazil;
| | - Damião Pergentino de Sousa
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, UFPB, João Pessoa 58051-900, Brazil;
| | - Márcia Regina Piuvezam
- Laboratório de Imunofarmacologia, Departamento de Fisiologia e Patologia, UFPB, João Pessoa 58051-900, Brazil;
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17
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Skuredina AA, Tychinina AS, Le-Deygen IM, Belogurova NG, Kudryashova EV. Regulation of Properties of Lipid Membranes by Interaction with 2-Hydroxypropyl β-Cyclodextrin: Molecular Details. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2020. [DOI: 10.1134/s1068162020050246] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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18
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Drug delivery systems based on nanoparticles and related nanostructures. Eur J Pharm Sci 2020; 151:105412. [DOI: 10.1016/j.ejps.2020.105412] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 05/31/2020] [Accepted: 06/02/2020] [Indexed: 12/11/2022]
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19
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De Simone A, Naldi M, Tedesco D, Bartolini M, Davani L, Andrisano V. Advanced analytical methodologies in Alzheimer’s disease drug discovery. J Pharm Biomed Anal 2020; 178:112899. [DOI: 10.1016/j.jpba.2019.112899] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 09/25/2019] [Accepted: 09/26/2019] [Indexed: 12/13/2022]
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20
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Yao H, Wynendaele E, Xu X, Kosgei A, De Spiegeleer B. Circular dichroism in functional quality evaluation of medicines. J Pharm Biomed Anal 2018; 147:50-64. [DOI: 10.1016/j.jpba.2017.08.031] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 08/18/2017] [Accepted: 08/19/2017] [Indexed: 12/31/2022]
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21
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Michalska K, Gruba E, Mizera M, Lewandowska K, Bednarek E, Bocian W, Cielecka-Piontek J. Application of spectroscopic methods (FT-IR, Raman, ECD and NMR) in studies of identification and optical purity of radezolid. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 183:116-122. [PMID: 28456082 DOI: 10.1016/j.saa.2017.04.038] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Revised: 04/13/2017] [Accepted: 04/18/2017] [Indexed: 06/07/2023]
Abstract
In the presented study, N-{[(5S)-3-(2-fluoro-4'-{[(1H-1,2,3-triazol-5-ylmethyl)amino]methyl}biphenyl-4-yl)-2-oxo-1,3-oxazolidin-5-yl]methyl}acetamide (radezolid) was synthesized and characterized using FT-IR, Raman, ECD and NMR. The aim of this work was to assess the possibility of applying classical spectral methods such as FT-IR, Raman, ECD and NMR spectroscopy for studies on the identification and optical purity of radezolid. The experimental interpretation of FT-IR and Raman spectra of radezolid was conducted in combination with theoretical studies. Density functional theory (DFT) with the B3LYP hybrid functional was used for obtaining radezolid spectra. Full identification was carried out by COSY, 1H {13C} HSQC and 1H {13C} HMBC experiments. The experimental NMR chemical shifts and spin-spin coupling constants were compared with theoretical calculations using the DFT method and B3LYP functional employing the 6-311++G(d,p) basis set and the solvent polarizable continuum model (PCM). The experimental ECD spectra of synthesized radezolid were compared with experimental spectra of the reference standard of radezolid. Theoretical calculations enabled us to conduct HOMO and LUMO analysis and molecular electrostatic potential maps were used to determine the active sites of microbiologically active form of radezolid enantiomer. The relationship between results of ab initio calculations and knowledge about chemical-biological properties of S-radezolid and other oxazolidinone derivatives are also discussed.
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Affiliation(s)
- Katarzyna Michalska
- Department of Antibiotics and Microbiology, National Medicines Institute, Chełmska 30/34, 00-725 Warsaw, Poland.
| | - Ewa Gruba
- Department of Antibiotics and Microbiology, National Medicines Institute, Chełmska 30/34, 00-725 Warsaw, Poland
| | - Mikołaj Mizera
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Poznan University of Medical Sciences, Grunwaldzka 6, 60-780 Poznan, Poland
| | - Kornelia Lewandowska
- Department of Molecular Crystals, Institute of Molecular Physics of the Polish Academy of Sciences, Poznan, Poland
| | - Elżbieta Bednarek
- Nuclear Magnetic Resonance Laboratory, National Medicines Institute, Chełmska 30/34, 00-725 Warsaw, Poland
| | - Wojciech Bocian
- Nuclear Magnetic Resonance Laboratory, National Medicines Institute, Chełmska 30/34, 00-725 Warsaw, Poland
| | - Judyta Cielecka-Piontek
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Poznan University of Medical Sciences, Grunwaldzka 6, 60-780 Poznan, Poland.
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22
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Naldi M, Baldassarre M, Domenicali M, Bartolini M, Caraceni P. Structural and functional integrity of human serum albumin: Analytical approaches and clinical relevance in patients with liver cirrhosis. J Pharm Biomed Anal 2017; 144:138-153. [PMID: 28465079 DOI: 10.1016/j.jpba.2017.04.023] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 04/04/2017] [Accepted: 04/15/2017] [Indexed: 02/08/2023]
Abstract
Human serum albumin (HSA) is the most abundant circulating plasma protein. Besides a significant contribution to the osmotic pressure, it is also involved in the fine regulation of many other physiological processes, including the balance of the redox state, the inflammatory and/or immunological responses, and the pharmacokinetic and pharmacodynamics of many drugs. Growing evidence suggests that HSA undergoes structural and functional damage in diseases characterized by an enhanced systemic inflammatory response and oxidative stress, as it occurs in chronic liver disease. Based on their clinical relevance, this review provides a summary of the most common post-translational modifications affecting HSA structural integrity and functions and their clinical relevance in the field of liver disease. The review also provides a critical description of the analytical approaches employed for the investigation of conformational alterations and the identification/quantitation of specific post-translational modifications affecting HSA. Finally, the analytical methods available for the assessment of two of the most clinically relevant non-oncotic properties of HSA, namely the binding capacity and the antioxidant activity, are critically reviewed. Among the available techniques particular attention is given to those proposed for the in vitro and in vivo investigation of structurally modified albumin.
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Affiliation(s)
- Marina Naldi
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum University of Bologna, Via Belmeloro 6, 40126, Italy; Center for Applied Biomedical Research (C.R.B.A.), S. Orsola-Malpighi Hospital, Via Massarenti 9, 40138 Bologna, Italy
| | - Maurizio Baldassarre
- Center for Applied Biomedical Research (C.R.B.A.), S. Orsola-Malpighi Hospital, Via Massarenti 9, 40138 Bologna, Italy; Department of Medical and Surgical Sciences, Alma Mater Studiorum University of Bologna, Via Massarenti 9, 40138, Italy
| | - Marco Domenicali
- Center for Applied Biomedical Research (C.R.B.A.), S. Orsola-Malpighi Hospital, Via Massarenti 9, 40138 Bologna, Italy; Department of Medical and Surgical Sciences, Alma Mater Studiorum University of Bologna, Via Massarenti 9, 40138, Italy
| | - Manuela Bartolini
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum University of Bologna, Via Belmeloro 6, 40126, Italy
| | - Paolo Caraceni
- Center for Applied Biomedical Research (C.R.B.A.), S. Orsola-Malpighi Hospital, Via Massarenti 9, 40138 Bologna, Italy; Department of Medical and Surgical Sciences, Alma Mater Studiorum University of Bologna, Via Massarenti 9, 40138, Italy.
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23
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24
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Comprehensive spectroscopic probing the interaction and conformation impairment of bovine serum albumin (BSA) by herbicide butachlor. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2016; 162:332-339. [DOI: 10.1016/j.jphotobiol.2016.07.005] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 07/04/2016] [Accepted: 07/07/2016] [Indexed: 11/27/2022]
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25
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Infrared, Raman and ultraviolet with circular dichroism analysis and theoretical calculations of tedizolid. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.02.098] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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26
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Surface plasmon resonance and circular dichroism characterization of cucurbitacins binding to serum albumins for early pharmacokinetic profiling. J Pharm Biomed Anal 2016; 122:166-72. [DOI: 10.1016/j.jpba.2016.01.051] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 01/22/2016] [Accepted: 01/23/2016] [Indexed: 11/22/2022]
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27
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Species-dependent binding of new synthesized bicalutamide analogues to albumin by optical biosensor analysis. J Pharm Biomed Anal 2015; 111:324-32. [DOI: 10.1016/j.jpba.2015.02.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Revised: 02/04/2015] [Accepted: 02/06/2015] [Indexed: 11/21/2022]
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28
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Tedesco D, Bertucci C. Induced circular dichroism as a tool to investigate the binding of drugs to carrier proteins: Classic approaches and new trends. J Pharm Biomed Anal 2015; 113:34-42. [PMID: 25769668 DOI: 10.1016/j.jpba.2015.02.024] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Accepted: 02/12/2015] [Indexed: 10/24/2022]
Abstract
Induced circular dichroism (ICD) is a spectroscopic phenomenon that provides versatile and useful methods for characterizing the structural and dynamic properties of the binding of drugs to target proteins. The understanding of biorecognition processes at the molecular level is essential to discover and validate new pharmacological targets, and to design and develop new potent and selective drugs. The present article reviews the main applications of ICD to drug binding studies on serum carrier proteins, going from the classic approaches for the derivation of drug binding parameters and the identification of binding sites, to an overview of the emerging trends for the characterization of binding modes by means of quantum chemical (QC) techniques. The advantages and limits of the ICD methods for the determination of binding parameters are critically reviewed; the capability to investigate the binding interactions of drugs and metabolites to their target proteins is also underlined, as well as the possibility of characterizing the binding sites to obtain a complete picture of the binding mechanism and dynamics. The new applications of ICD methods to identify stereoselective binding modes of drug/protein complexes are then reviewed with relevant examples. The combined application of experimental ICD spectroscopy and QC calculations is shown to identify qualitatively the bound conformations of ligands to target proteins even in the absence of a detailed structure of the binding sites, either obtained from experimental X-ray crystallography and NMR measurements or from computational models of the complex.
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Affiliation(s)
- Daniele Tedesco
- Department of Pharmacy and Biotechnology, University of Bologna, via Belmeloro 6, 40126 Bologna, Italy
| | - Carlo Bertucci
- Department of Pharmacy and Biotechnology, University of Bologna, via Belmeloro 6, 40126 Bologna, Italy.
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29
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Ascenzi P, Fanali G, Fasano M, Pallottini V, Trezza V. Clinical relevance of drug binding to plasma proteins. J Mol Struct 2014. [DOI: 10.1016/j.molstruc.2013.09.053] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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30
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Tedesco D, Pistolozzi M, Zanasi R, Bertucci C. Characterization of the species-dependent ketoprofen/albumin binding modes by induced CD spectroscopy and TD-DFT calculations. J Pharm Biomed Anal 2014; 112:176-80. [PMID: 25555517 DOI: 10.1016/j.jpba.2014.11.029] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Revised: 11/14/2014] [Accepted: 11/15/2014] [Indexed: 11/26/2022]
Abstract
The stereospecificity of high-affinity biorecognition phenomena at the basis of the activity of drugs is an important topic of active research in medicinal chemistry. The binding of drugs to their targets or to carrier proteins may lead to the onset of an induced circular dichroism (ICD) signal, which can be detected experimentally. Quantum mechanical (QM) calculations based on density functional theory (DFT) and its time-dependent formulation (TD-DFT) can be used to determine the theoretical chiroptical response of all the possible conformations of drugs bound to their hosts; by comparison with the experimental ICD spectra of drug-host complexes, this approach can lead to the identification of possible binding modes in the absence of X-ray crystallography or NMR data. The present article reports the application of experimental electronic circular dichroism (ECD) spectroscopy, DFT conformational analysis and TD-DFT calculations to the investigation of the binding modes of (S)-ketoprofen to serum albumins. The peculiar species-dependent ICD spectra observed for the binding of (S)-ketoprofen to different serum albumins can be explained by the selection of different mutual arrangements of the phenyl moieties inside the binding pocket. Such structural elucidations contribute to a better understanding of the changes in the pharmacokinetic and pharmacodynamic profiles of drugs among different species.
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Affiliation(s)
- Daniele Tedesco
- Department of Pharmacy and Biotechnology, University of Bologna, Via Belmeloro 6, Bologna, 40126 Italy
| | - Marco Pistolozzi
- Department of Pharmacy and Biotechnology, University of Bologna, Via Belmeloro 6, Bologna, 40126 Italy
| | - Riccardo Zanasi
- Department of Chemistry and Biology, University of Salerno, Via Giovanni Paolo II 132, Fisciano, 84084 Italy
| | - Carlo Bertucci
- Department of Pharmacy and Biotechnology, University of Bologna, Via Belmeloro 6, Bologna, 40126 Italy.
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31
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Optical biosensor analysis in studying new synthesized bicalutamide analogs binding to androgen receptor. J Pharm Biomed Anal 2014; 95:151-7. [DOI: 10.1016/j.jpba.2014.03.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Accepted: 03/01/2014] [Indexed: 11/18/2022]
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32
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Li L, Wang L, Si Y. Electronic circular dichroism behavior of chiral Phthiobuzone. Acta Pharm Sin B 2014; 4:167-71. [PMID: 26579380 PMCID: PMC4590302 DOI: 10.1016/j.apsb.2014.01.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Revised: 12/10/2013] [Accepted: 01/07/2014] [Indexed: 11/16/2022] Open
Abstract
Phthiobuzone is a bis(thiosemicarbazone) derivative with a single chiral center which has been used as a racemate in the clinical treatment of herpes and trachoma diseases. In this study, its two enantiomers were prepared from chiral amino acids and their absolute configurations were investigated by electronic circular dichroism (ECD) combined with modern quantum-chemical calculations using time-dependent density functional theory. It was found that solvation changed both the conformational distribution and the ECD spectrum of each conformer. The theoretical ECD spectra of the two enantiomers were in good agreement with the experimentally determined spectra of the corresponding isomers in dimethyl sulfoxide. The ECD behavior of the bis(thiosemicarbazone) chromophore in a chiral environment is also discussed. Our results indicate that ECD spectroscopy may be a useful tool for the stereochemical evaluation of chiral drugs.
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33
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Wilde F, Chamseddin C, Lemmerhirt H, Bednarski PJ, Jira T, Link A. Evaluation of (S)- and (R)-misonidazole as GPX inhibitors: synthesis, characterization including circular dichroism and in vitro testing on bovine GPx-1. Arch Pharm (Weinheim) 2013; 347:153-60. [PMID: 24375829 DOI: 10.1002/ardp.201300285] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Revised: 09/24/2013] [Accepted: 09/24/2013] [Indexed: 11/06/2022]
Abstract
Racemic misonidazole, a radiosensitizer formally used in radiation therapy of cancer and to date still applied, was once reported to exhibit strong inhibitory effects on mouse glutathione peroxidases (GPX). This appeared to qualify misonidazole as a lead structure for the development of novel GPX inhibitors to cause oxidative stress in chemotherapy-resistant tumors. A unique feature of misonidazole as an inhibitor of GPX is the absence of a thiol functionality. Therefore, it was expected to selectively target inhibition devoid of promiscuous interactions with cations and sulfhydryl groups. We synthesized the isomers of misonidazole and analyzed the ability of chiroptical high-performance liquid chromatography (HPLC) to identify the particular enantiomers. Due to the chiral pool synthesis, the assignment of the correct configuration could be verified. Finally, we evaluated both isomers for their inhibitory activities on bovine erythrocyte GPx-1, which is 87% homologous to the human enzyme. Despite the previously reported inhibition of racemic misonidazole on the less homologous mouse GPx-1, we did not find any significant inhibitory activity on the bovine enzyme for either isomer. Though misonidazole appears unlikely to be an inhibitor of human GPx-1 activity, we still spotlight misonidazole as a promising fragment-like lead structure in general.
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Affiliation(s)
- Felix Wilde
- Department of Pharmaceutical and Medicinal Chemistry, Institute of Pharmacy, Ernst-Moritz-Arndt University Greifswald, Greifswald, Germany
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34
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Absolute configuration of Buagafuran: An experimental and theoretical electronic circular dichroism study. CHINESE CHEM LETT 2013. [DOI: 10.1016/j.cclet.2013.03.048] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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35
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Nobilis M, Mikušek J, Szotáková B, Jirásko R, Holčapek M, Chamseddin C, Jira T, Kučera R, Kuneš J, Pour M. Analytical power of LLE–HPLC–PDA–MS/MS in drug metabolism studies: Identification of new nabumetone metabolites. J Pharm Biomed Anal 2013; 80:164-72. [DOI: 10.1016/j.jpba.2013.03.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2012] [Revised: 03/03/2013] [Accepted: 03/06/2013] [Indexed: 10/27/2022]
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36
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Advances in electrochemical detection for study of neurodegenerative disorders. Anal Bioanal Chem 2013; 405:5725-41. [DOI: 10.1007/s00216-013-6904-3] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2012] [Revised: 03/05/2013] [Accepted: 03/06/2013] [Indexed: 12/30/2022]
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37
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Konstantinidis S, Kong S, Titchener-Hooker N. Identifying analytics for high throughput bioprocess development studies. Biotechnol Bioeng 2013; 110:1924-35. [PMID: 23334907 DOI: 10.1002/bit.24850] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2012] [Revised: 12/01/2012] [Accepted: 01/07/2013] [Indexed: 12/31/2022]
Abstract
In recent years, high throughput screening (HTS) studies have been increasingly employed as an integral element of bioprocess development activities. These studies are often limited by an analytical bottleneck; they generate multiple samples for analysis and the available analytical methods cannot always cope with the added analytical burden. A potential solution to this challenge is offered by the deployment of appropriate analytics. This article outlines features of analytical methods that affect their fit to high throughput (HT) applications. These are discussed for a range of analytics frequently used in bioprocess development studies of monoclonal antibodies. It then outlines how these features need to be considered in order to classify analytical methods in terms of their particular application in high throughput scenarios.
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Affiliation(s)
- Spyridon Konstantinidis
- The Advanced Centre for Biochemical Engineering, Department of Biochemical Engineering, University College London, Torrington Place, London WC1E 7JE, UK
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38
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Ng CH, Wang WS, Chong KV, Win YF, Neo KE, Lee HB, San SL, Raja Abd. Rahman RNZ, Leong WK. Ternary copper(ii)-polypyridyl enantiomers: aldol-type condensation, characterization, DNA-binding recognition, BSA-binding and anticancer property. Dalton Trans 2013; 42:10233-43. [DOI: 10.1039/c3dt50884f] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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39
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Miyake Y, Wang X, Amasaka M, Itto K, Xu S, Arimoto H, Fujii H, Hirata H. Simultaneous Imaging of an Enantiomer Pair by Electron Paramagnetic Resonance Using Isotopic Nitrogen Labeling. Anal Chem 2012; 85:985-90. [DOI: 10.1021/ac302710m] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Yusuke Miyake
- Division of Bioengineering and Bioinformatics,
Graduate School of Information Science and Technology, Hokkaido University, North 14, West 9, Kita-ku, Sapporo,
060-0814, Japan
| | - Xiaolei Wang
- Department
of Biomolecular Sciences, Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai
980-8577, Japan
| | - Mitsuo Amasaka
- Division of Bioengineering and Bioinformatics,
Graduate School of Information Science and Technology, Hokkaido University, North 14, West 9, Kita-ku, Sapporo,
060-0814, Japan
| | - Kaori Itto
- Department
of Biomolecular Sciences, Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai
980-8577, Japan
| | - Shu Xu
- Department
of Biomolecular Sciences, Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai
980-8577, Japan
| | - Hirokazu Arimoto
- Department
of Biomolecular Sciences, Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai
980-8577, Japan
| | - Hirotada Fujii
- Department
of Arts and Sciences, Center for Medical Education, Sapporo Medical University, South 1, West 17, Chuo-ku, Sapporo
060-8556, Japan
| | - Hiroshi Hirata
- Division of Bioengineering and Bioinformatics,
Graduate School of Information Science and Technology, Hokkaido University, North 14, West 9, Kita-ku, Sapporo,
060-0814, Japan
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Advantages of electronic circular dichroism detection for the stereochemical analysis and characterization of drugs and natural products by liquid chromatography. J Chromatogr A 2012; 1269:69-81. [PMID: 23040981 DOI: 10.1016/j.chroma.2012.09.046] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2012] [Revised: 09/10/2012] [Accepted: 09/17/2012] [Indexed: 11/21/2022]
Abstract
The need for analytical methods for the determination of the enantiomeric excess of chiral compounds increased significantly in the last decades, and enantioselective separation techniques resulted particularly efficient to this purpose. Moreover, when detection systems based on chiroptical properties (optical rotation or circular dichroism) are employed in high-performance liquid chromatography (HPLC), the stereochemistry of a chiral analyte can be fully determined. Indeed, the coupling of HPLC with chiroptical detection systems allows the simultaneous assessment of the absolute configuration of stereoisomers and the evaluation of the enantiomeric/diastereomeric excess of samples. These features are particularly important in the study of drugs and natural products provided with biological activity, because the assignment of their absolute stereochemistry is essential to establish reliable structure-activity relationships. The following review aims to discuss the analytical advantages arising from the employment of electronic circular dichroism (ECD) detection systems in stereochemical analysis by HPLC upon chiral and non-chiral stationary phases and their use for the stereochemical characterization of chiral drugs and natural compounds. The different methods for the correlation between absolute stereochemistry and chiroptical properties are critically discussed. Relevant HPLC applications of ECD detection systems are then reported, and their analytical advantages are highlighted. For instance, the importance of the concentration-independent anisotropy factor (g-factor; g=Δɛ/ɛ) for the determination of the stereoisomeric composition of samples upon non-chiral stationary phases is underlined, since its sensitivity makes ECD detection very well suited for the enantioselective analysis of large libraries of chiral compounds in relatively short times.
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Surface plasmon resonance, fluorescence, and circular dichroism studies for the characterization of the binding of BACE-1 inhibitors. Anal Bioanal Chem 2012; 405:827-35. [DOI: 10.1007/s00216-012-6312-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2012] [Revised: 07/21/2012] [Accepted: 07/30/2012] [Indexed: 10/28/2022]
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El Amri C, Martin AR, Vasseur JJ, Smietana M. Borononucleotides as substrates/binders for human NMP kinases: enzymatic and spectroscopic evaluation. Chembiochem 2012; 13:1605-12. [PMID: 22733592 DOI: 10.1002/cbic.201200199] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2012] [Indexed: 11/06/2022]
Abstract
Borononucleotides are a family of natural nucleotide monophosphate analogues with a 5'-boronic acid function. As B-O-P linkages are known to be unstable in solution, we evaluated the ability of borononucleotides to be recognized by nucleoside monophosphate kinases and eventually foil the phosphorylation process. In this context, and with the idea of probing the influence of their size, shape, and flexibility, a library of borononucleotides were synthetized starting from the borononucleotide analogue of thymidine, which was shown to behave as a slow substrate of human TMP kinase. This study thus constitutes a good starting point for the development of new monophosphate mimics as potential substrates or ligands for NMP kinases.
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Affiliation(s)
- Chahrazade El Amri
- Groupe d'Enzymologie Moléculaire et Fonctionnelle, UR4-UPMC, Université Pierre et Marie Curie, Sorbonne Universités, case courrier 256, 7, quai St Bernard, 75252 Paris Cedex 05, France.
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Tilgmann C, Pollesello P, Ovaska M, Kaivola J, Pystynen J, Tiainen E, Yliperttula M, Annila A, Levijoki J. Discovery and Structural Characterization of a Phospholamban-Binding Cyclic Peptide and Design of Novel Inhibitors of Phospholamban. Chem Biol Drug Des 2012; 81:463-73. [DOI: 10.1111/j.1747-0285.2012.01409.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Human serum albumin: from bench to bedside. Mol Aspects Med 2011; 33:209-90. [PMID: 22230555 DOI: 10.1016/j.mam.2011.12.002] [Citation(s) in RCA: 1195] [Impact Index Per Article: 91.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2011] [Accepted: 12/21/2011] [Indexed: 02/07/2023]
Abstract
Human serum albumin (HSA), the most abundant protein in plasma, is a monomeric multi-domain macromolecule, representing the main determinant of plasma oncotic pressure and the main modulator of fluid distribution between body compartments. HSA displays an extraordinary ligand binding capacity, providing a depot and carrier for many endogenous and exogenous compounds. Indeed, HSA represents the main carrier for fatty acids, affects pharmacokinetics of many drugs, provides the metabolic modification of some ligands, renders potential toxins harmless, accounts for most of the anti-oxidant capacity of human plasma, and displays (pseudo-)enzymatic properties. HSA is a valuable biomarker of many diseases, including cancer, rheumatoid arthritis, ischemia, post-menopausal obesity, severe acute graft-versus-host disease, and diseases that need monitoring of the glycemic control. Moreover, HSA is widely used clinically to treat several diseases, including hypovolemia, shock, burns, surgical blood loss, trauma, hemorrhage, cardiopulmonary bypass, acute respiratory distress syndrome, hemodialysis, acute liver failure, chronic liver disease, nutrition support, resuscitation, and hypoalbuminemia. Recently, biotechnological applications of HSA, including implantable biomaterials, surgical adhesives and sealants, biochromatography, ligand trapping, and fusion proteins, have been reported. Here, genetic, biochemical, biomedical, and biotechnological aspects of HSA are reviewed.
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Li L, Si YK. Study on the absolute configuration of levetiracetam via density functional theory calculations of electronic circular dichroism and optical rotatory dispersion. J Pharm Biomed Anal 2011; 56:465-70. [DOI: 10.1016/j.jpba.2011.07.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2011] [Revised: 06/29/2011] [Accepted: 07/02/2011] [Indexed: 11/24/2022]
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Liddelow SA, Dziegielewska KM, Møllgård K, Phoenix TN, Temple S, VandeBerg JL, Saunders NR. SPARC/osteonectin, an endogenous mechanism for targeting albumin to the blood-cerebrospinal fluid interface during brain development. Eur J Neurosci 2011; 34:1062-73. [DOI: 10.1111/j.1460-9568.2011.07821.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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47
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Staub A, Zurlino D, Rudaz S, Veuthey JL, Guillarme D. Analysis of peptides and proteins using sub-2 μm fully porous and sub 3-μm shell particles. J Chromatogr A 2011; 1218:8903-14. [PMID: 21831381 DOI: 10.1016/j.chroma.2011.07.051] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2011] [Revised: 07/13/2011] [Accepted: 07/14/2011] [Indexed: 11/26/2022]
Abstract
The objective of this study was to evaluate the potential of sub-2 μm totally porous particles and sub-3 μm shell particles for peptide and protein analysis. Specific analytical strategies must be developed for these biomolecules as their importance in the pharmaceutical industry increases and as their structural complexity involves some issues when classical LC conditions are employed. Attention was paid on comparing these different columns in various LC conditions (different temperatures, gradient times, and mobile phase flow rates). The comparison of the different supports was assessed considering columns characteristics (quality of packing, silanol activity, pore size, totally porous or shell particles). In this article, peptides were first analyzed with both column technologies. Similar results to those achieved with low molecular weight compounds were obtained (peak capacity >100 for t(grad) around 3 min and columns dimensions of 2.1 mm id × 50 mm), but specific conditions were required (elevated temperature and the use of a volatile ion-pairing reagent, namely TFA). For peptide analysis following tryptic digestion, the goal was to improve peak capacity and resolution because of the large number of generated peptides. For this purpose, longer columns packed with porous sub-2 μm or shell sub-3 μm particles (i.e., 150 mm) and gradient times (i.e., up to 30 min) were tested. On the other hand, proteins in their intact forms have higher molecular weights (MW>5000 Da) and a tertiary structure, thus requiring different conditions in terms of stationary phase hydrophobicity (C(4)vs. C(18)) and pore size (300 vs. 120 Å). In addition, there were issues with adsorption onto the LC system and/or the column itself. This study showed that proteins with MWs lower than 40,000 Da required chromatographic conditions close to those employed for peptide analysis. For larger proteins, a C(4) 300 Å stationary phase gave the best results, confirming theoretical predictions.
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Affiliation(s)
- Aline Staub
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Bd d'Yvoy 20, 1211 Geneva 4, Switzerland
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48
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Intact protein analysis in the biopharmaceutical field. J Pharm Biomed Anal 2011; 55:810-22. [DOI: 10.1016/j.jpba.2011.01.031] [Citation(s) in RCA: 132] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2010] [Revised: 01/18/2011] [Accepted: 01/21/2011] [Indexed: 01/09/2023]
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Saunders N, Habgood M. Understanding barrier mechanisms in the developing brain to aid therapy for the dysfunctional brain. FUTURE NEUROLOGY 2011. [DOI: 10.2217/fnl.10.84] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The brain, both in the adult and during development, is protected by morphological barriers and functional mechanisms that provide a stable internal environment. Understanding these processes in the developing brain may lead to novel therapies for brain disorders, as some transport mechanisms, particularly those in the choroid plexus, may prove more amenable to devising novel delivery systems. Based on results from studies of the transfer of specific proteins across the blood–cerebrospinal fluid interface in the developing brain, the steps required to develop such a delivery system are outlined. Knowledge of barrier mechanisms in the developing brain may be relevant to treating neuropsychiatric conditions in children and adults for whom barrier dysfunction in the fetus, precipitated by adverse factors such as maternal infection, may contribute to the neuropathology underlying disorders such as autism and schizophrenia.
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Affiliation(s)
- Norman Saunders
- University of Melbourne, Department of Pharmacology, Parkville, Victoria 3010, Australia
| | - Mark Habgood
- University of Melbourne, Department of Pharmacology, Parkville, Victoria 3010, Australia
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Lv C, Zhou Z. Chiral HPLC separation and absolute configuration assignment of a series of new triazole compounds. J Sep Sci 2011; 34:363-70. [DOI: 10.1002/jssc.201000762] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2010] [Revised: 11/23/2010] [Accepted: 11/23/2010] [Indexed: 11/11/2022]
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