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Rejc L, Knez D, Molina-Aguirre G, Espargaró A, Kladnik J, Meden A, Blinc L, Lozinšek M, Jansen-van Vuuren RD, Rogan M, Martek BA, Mlakar J, Dremelj A, Petrič A, Gobec S, Sabaté R, Bresjanac M, Pinter B, Košmrlj J. Probing Alzheimer's pathology: Exploring the next generation of FDDNP analogues for amyloid β detection. Biomed Pharmacother 2024; 175:116616. [PMID: 38723516 DOI: 10.1016/j.biopha.2024.116616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 04/11/2024] [Accepted: 04/17/2024] [Indexed: 06/03/2024] Open
Abstract
Fluorescent probes are a powerful tool for imaging amyloid β (Aβ) plaques, the hallmark of Alzheimer's disease (AD). Herein, we report the synthesis and comprehensive characterization of 21 novel probes as well as their optical properties and binding affinities to Aβ fibrils. One of these dyes, 1Ae, exhibited several improvements over FDDNP, an established biomarker for Aβ- and Tau-aggregates. First, 1Ae had large Stokes shifts (138-213 nm) in various solvents, thereby reducing self-absorption. With a high quantum yield ratio (φ(dichloromethane/methanol) = 104), 1Ae also ensures minimal background emission in aqueous environments and high sensitivity. In addition, compound 1Ae exhibited low micromolar binding affinity to Aβ fibrils in vitro (Kd = 1.603 µM), while increasing fluorescence emission (106-fold) compared to emission in buffer alone. Importantly, the selective binding of 1Ae to Aβ1-42 fibrils was confirmed by an in cellulo assay, supported by ex vivo fluorescence microscopy of 1Ae on postmortem AD brain sections, allowing unequivocal identification of Aβ plaques. The intermolecular interactions of fluorophores with Aβ were elucidated by docking studies and molecular dynamics simulations. Density functional theory calculations revealed the unique photophysics of these rod-shaped fluorophores, with a twisted intramolecular charge transfer (TICT) excited state. These results provide valuable insights into the future application of such probes as potential diagnostic tools for AD in vitro and ex vivo such as determination of Aβ1-42 in cerebrospinal fluid or blood.
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Affiliation(s)
- Luka Rejc
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, Ljubljana SI-1000, Slovenia
| | - Damijan Knez
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, Ljubljana SI-1000, Slovenia
| | | | - Alba Espargaró
- Faculty of Pharmacy, Department of Pharmacy, Pharmaceutical Technology and Physical-Chemistry, Section of Physical-Chemistry, and Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, Barcelona 08028, Spain
| | - Jerneja Kladnik
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, Ljubljana SI-1000, Slovenia
| | - Anže Meden
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, Ljubljana SI-1000, Slovenia
| | - Lana Blinc
- Laboratory of Neural Plasticity and Regeneration (LNPR), Institute of Pathophysiology, Faculty of Medicine, University of Ljubljana, Zaloška 4, Ljubljana SI-1000, Slovenia
| | - Matic Lozinšek
- Jožef Stefan Institute, Jamova cesta 39, Ljubljana SI-1000, Slovenia
| | - Ross D Jansen-van Vuuren
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, Ljubljana SI-1000, Slovenia
| | - Matic Rogan
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, Ljubljana SI-1000, Slovenia
| | - Bruno Aleksander Martek
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, Ljubljana SI-1000, Slovenia
| | - Jernej Mlakar
- Faculty of Medicine, Institute of Pathology, University of Ljubljana, Korytkova 2, Ljubljana SI-1000, Slovenia
| | - Ana Dremelj
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, Ljubljana SI-1000, Slovenia
| | - Andrej Petrič
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, Ljubljana SI-1000, Slovenia
| | - Stanislav Gobec
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, Ljubljana SI-1000, Slovenia.
| | - Raimon Sabaté
- Faculty of Pharmacy, Department of Pharmacy, Pharmaceutical Technology and Physical-Chemistry, Section of Physical-Chemistry, and Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, Barcelona 08028, Spain.
| | - Mara Bresjanac
- Laboratory of Neural Plasticity and Regeneration (LNPR), Institute of Pathophysiology, Faculty of Medicine, University of Ljubljana, Zaloška 4, Ljubljana SI-1000, Slovenia.
| | - Balazs Pinter
- The University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, USA.
| | - Janez Košmrlj
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, Ljubljana SI-1000, Slovenia.
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Chayavanich K, Sapyen W, Imyim A. An easy-to-use platform for colorimetric determination of dextran: A potential application for the sugar industry. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 308:123761. [PMID: 38141504 DOI: 10.1016/j.saa.2023.123761] [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: 08/23/2023] [Revised: 11/21/2023] [Accepted: 12/10/2023] [Indexed: 12/25/2023]
Abstract
A user-friendly platform based on foam sheets and silica solid support was developed for colorimetric sensing of dextran via phenol-sulfuric acid assay. The chemical reagents, sulfuric acid and phenol were separately preserved by silica gel. The brown color product of the phenol-sulfuric acid reaction occurred on the silica solid support when sample solutions were added. The color intensity of brown products was easily obtained by a smartphone and color processing software. Subsequently, a broad concentration range of dextran could be determined up to 10,000 mg/L dextran, with a detection limit of 360 mg/L. Furthermore, a precision study, including inter-day and intra-day studies, presented a satisfactory performance for dextran detection. The developed platform was successfully applied for the sugar industry's dextran determination of syrup samples.
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Affiliation(s)
- Kasitnun Chayavanich
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Wannida Sapyen
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Apichat Imyim
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand; Nanotec-CU Center of Excellence on Food and Agriculture, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.
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3
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Nazarzadeh Zare E, Khorsandi D, Zarepour A, Yilmaz H, Agarwal T, Hooshmand S, Mohammadinejad R, Ozdemir F, Sahin O, Adiguzel S, Khan H, Zarrabi A, Sharifi E, Kumar A, Mostafavi E, Kouchehbaghi NH, Mattoli V, Zhang F, Jucaud V, Najafabadi AH, Khademhosseini A. Biomedical applications of engineered heparin-based materials. Bioact Mater 2024; 31:87-118. [PMID: 37609108 PMCID: PMC10440395 DOI: 10.1016/j.bioactmat.2023.08.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 07/03/2023] [Accepted: 08/01/2023] [Indexed: 08/24/2023] Open
Abstract
Heparin is a negatively charged polysaccharide with various chain lengths and a hydrophilic backbone. Due to its fascinating chemical and physical properties, nontoxicity, biocompatibility, and biodegradability, heparin has been extensively used in different fields of medicine, such as cardiovascular and hematology. This review highlights recent and future advancements in designing materials based on heparin for various biomedical applications. The physicochemical and mechanical properties, biocompatibility, toxicity, and biodegradability of heparin are discussed. In addition, the applications of heparin-based materials in various biomedical fields, such as drug/gene delivery, tissue engineering, cancer therapy, and biosensors, are reviewed. Finally, challenges, opportunities, and future perspectives in preparing heparin-based materials are summarized.
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Affiliation(s)
| | - Danial Khorsandi
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90024, United States
| | - Atefeh Zarepour
- Department of Biomedical Engineering, Faculty of Engineering and Natural Sciences, Istinye University, Sariyer, Istanbul, 34396, Turkey
| | - Hulya Yilmaz
- Nanotechnology Research and Application Center (SUNUM), Sabanci University, Istanbul, 34956, Turkey
| | - Tarun Agarwal
- Department of Bio-Technology, Koneru Lakshmaiah Education Foundation, Vaddeswaram, AP, India
| | - Sara Hooshmand
- Nanotechnology Research and Application Center (SUNUM), Sabanci University, Istanbul, 34956, Turkey
| | - Reza Mohammadinejad
- Research Center of Tropical and Infectious Diseases, Kerman University of Medical Sciences, Kerman, Iran
| | - Fatma Ozdemir
- Nanotechnology Research and Application Center (SUNUM), Sabanci University, Istanbul, 34956, Turkey
| | - Onur Sahin
- Department of Basic Pharmacy Sciences, Faculty of Pharmacy, Istinye University, Istanbul, Turkey
| | - Sevin Adiguzel
- Nanotechnology Research and Application Center (SUNUM), Sabanci University, Istanbul, 34956, Turkey
| | - Haroon Khan
- Department of Pharmacy, Abdul Wali Khan University, Mardan, 23200, Pakistan
| | - Ali Zarrabi
- Department of Biomedical Engineering, Faculty of Engineering and Natural Sciences, Istinye University, Sariyer, Istanbul, 34396, Turkey
| | - Esmaeel Sharifi
- Department of Tissue Engineering and Biomaterials, School of Advanced Medical Sciences and Technologies, Hamadan University of Medical Sciences, Hamadan, Iran
- Institute of Polymers, Composites and Biomaterials - National Research Council (IPCB-CNR), Viale J.F. Kennedy 54 - Mostra D'Oltremare pad. 20, 80125, Naples, Italy
| | - Arun Kumar
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Ebrahim Mostafavi
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA
- Stanford Cardiovascular Institute, Stanford University, School of Medicine, Stanford, CA, 94305, USA
| | | | - Virgilio Mattoli
- Istituto Italiano di Tecnologia, Centre for Materials Interfaces, Viale Rinaldo Piaggio 34, Pontedera, Pisa, 56025, Italy
| | - Feng Zhang
- The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou, 324000, Zhejiang, China
| | - Vadim Jucaud
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90024, United States
| | | | - Ali Khademhosseini
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90024, United States
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Wang Q, Zhang Y, Yang B. Development status of novel spectral imaging techniques and application to traditional Chinese medicine. J Pharm Anal 2023; 13:1269-1280. [PMID: 38174122 PMCID: PMC10759257 DOI: 10.1016/j.jpha.2023.07.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 07/10/2023] [Accepted: 07/12/2023] [Indexed: 01/05/2024] Open
Abstract
Traditional Chinese medicine (TCM) is a treasure of the Chinese nation, providing effective solutions to current medical requisites. Various spectral techniques are undergoing continuous development and provide new and reliable means for evaluating the efficacy and quality of TCM. Because spectral techniques are noninvasive, convenient, and sensitive, they have been widely applied to in vitro and in vivo TCM evaluation systems. In this paper, previous achievements and current progress in the research on spectral technologies (including fluorescence spectroscopy, photoacoustic imaging, infrared thermal imaging, laser-induced breakdown spectroscopy, hyperspectral imaging, and surface enhanced Raman spectroscopy) are discussed. The advantages and disadvantages of each technology are also presented. Moreover, the future applications of spectral imaging to identify the origins, components, and pesticide residues of TCM in vitro are elucidated. Subsequently, the evaluation of the efficacy of TCM in vivo is presented. Identifying future applications of spectral imaging is anticipated to promote medical research as well as scientific and technological explorations.
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Affiliation(s)
- Qi Wang
- Department of Medicinal Chemistry and Natural Medicinal Chemistry, College of Pharmacy, Harbin Medical University, Harbin, 150081, China
| | - Yong Zhang
- Department of Pharmacology (The State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China
- Research Unit of Noninfectious Chronic Diseases in Frigid Zone, Chinese Academy of Medical Sciences, Harbin, 150081, China
- Institute of Metabolic Disease, Heilongjiang Academy of Medical Science, Harbin, 150086, China
| | - Baofeng Yang
- Department of Pharmacology (The State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China
- Research Unit of Noninfectious Chronic Diseases in Frigid Zone, Chinese Academy of Medical Sciences, Harbin, 150081, China
- Department of Pharmacology and Therapeutics, Melbourne School of Biomedical Sciences, Faculty of Medicine, Dentistry and Health Sciences University of Melbourne, Melbourne, VIC, 3010, Australia
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Dextran Formulations as Effective Delivery Systems of Therapeutic Agents. Molecules 2023; 28:molecules28031086. [PMID: 36770753 PMCID: PMC9920038 DOI: 10.3390/molecules28031086] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/12/2023] [Accepted: 01/20/2023] [Indexed: 01/24/2023] Open
Abstract
Dextran is by far one of the most interesting non-toxic, bio-compatible macromolecules, an exopolysaccharide biosynthesized by lactic acid bacteria. It has been extensively used as a major component in many types of drug-delivery systems (DDS), which can be submitted to the next in-vivo testing stages, and may be proposed for clinical trials or pharmaceutical use approval. An important aspect to consider in order to maintain high DDS' biocompatibility is the use of dextran obtained by fermentation processes and with a minimum chemical modification degree. By performing chemical modifications, artefacts can appear in the dextran spatial structure that can lead to decreased biocompatibility or even cytotoxicity. The present review aims to systematize DDS depending on the dextran type used and the biologically active compounds transported, in order to obtain desired therapeutic effects. So far, pure dextran and modified dextran such as acetalated, oxidised, carboxymethyl, diethylaminoethyl-dextran and dextran sulphate sodium, were used to develop several DDSs: microspheres, microparticles, nanoparticles, nanodroplets, liposomes, micelles and nanomicelles, hydrogels, films, nanowires, bio-conjugates, medical adhesives and others. The DDS are critically presented by structures, biocompatibility, drugs loaded and therapeutic points of view in order to highlight future therapeutic perspectives.
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Shi M, Jiang J, Gao X, Li Y, Xiao K, Han Q, Kong W, Liu Q, Yao Z. Rapid and Visual Detection of Al
3+
Based on Supramolecular Self‐Assembly of a Water‐Soluble Perylene Diimide Derivative. ChemistrySelect 2022. [DOI: 10.1002/slct.202203635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Mei Shi
- Beijing Laboratory of Food Quality and Safety, College of Food Science and Nutritional Engineering China Agricultural University 17 Tsinghua East Road, Haidian District Beijing 100083 China
| | - Jinghan Jiang
- Beijing Laboratory of Food Quality and Safety, College of Food Science and Nutritional Engineering China Agricultural University 17 Tsinghua East Road, Haidian District Beijing 100083 China
- Yantai Institute of China Agricultural University No.2006, Binhai Mid-Rd, High-tech Zone Yantai City, Shandong Province 264670 China
| | - Xiao Gao
- Beijing Laboratory of Food Quality and Safety, College of Food Science and Nutritional Engineering China Agricultural University 17 Tsinghua East Road, Haidian District Beijing 100083 China
| | - Yining Li
- Beijing Laboratory of Food Quality and Safety, College of Food Science and Nutritional Engineering China Agricultural University 17 Tsinghua East Road, Haidian District Beijing 100083 China
| | - Keren Xiao
- Beijing Laboratory of Food Quality and Safety, College of Food Science and Nutritional Engineering China Agricultural University 17 Tsinghua East Road, Haidian District Beijing 100083 China
| | - Qi‐an Han
- Beijing Laboratory of Food Quality and Safety, College of Food Science and Nutritional Engineering China Agricultural University 17 Tsinghua East Road, Haidian District Beijing 100083 China
| | - Weifu Kong
- Yantai Institute of China Agricultural University No.2006, Binhai Mid-Rd, High-tech Zone Yantai City, Shandong Province 264670 China
| | - Qingliang Liu
- Shandong Baier Testing Co., Ltd. Weifang City, Shandong Province 261061 China
| | - Zhiyi Yao
- Beijing Laboratory of Food Quality and Safety, College of Food Science and Nutritional Engineering China Agricultural University 17 Tsinghua East Road, Haidian District Beijing 100083 China
- Yantai Institute of China Agricultural University No.2006, Binhai Mid-Rd, High-tech Zone Yantai City, Shandong Province 264670 China
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