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Hu Z, Wang J, Han S, Jiang S, Hu J, Reheman A. Study on the sustained release properties of drug-loaded nanomicelles with amphiphilic poly(amino acid)s. POLYM-PLAST TECH MAT 2022. [DOI: 10.1080/25740881.2022.2155193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Zhuang Hu
- Center for Molecular Science and Engineering, College of Science, Northeastern University, Shenyang 110819, P. R. China
| | - Jiwei Wang
- Fujian Key Laboratory of Toxicant and Drug Toxicology, Medical College, Ningde Normal University, Ningde, Fujian 352100, P. R. China
- College of Pharmacy, Dali University, Dali 671000, Yunnan, China
| | - Siyu Han
- Center for Molecular Science and Engineering, College of Science, Northeastern University, Shenyang 110819, P. R. China
| | - Shizhi Jiang
- College of Pharmacy, Dali University, Dali 671000, Yunnan, China
| | - Jianshe Hu
- Center for Molecular Science and Engineering, College of Science, Northeastern University, Shenyang 110819, P. R. China
| | - Aikebaier Reheman
- Fujian Key Laboratory of Toxicant and Drug Toxicology, Medical College, Ningde Normal University, Ningde, Fujian 352100, P. R. China
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Ramesh M, Govindaraju T. Multipronged diagnostic and therapeutic strategies for Alzheimer's disease. Chem Sci 2022; 13:13657-13689. [PMID: 36544728 PMCID: PMC9710308 DOI: 10.1039/d2sc03932j] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 10/13/2022] [Indexed: 12/24/2022] Open
Abstract
Alzheimer's disease (AD) is a progressive neurodegenerative disorder and a major contributor to dementia cases worldwide. AD is clinically characterized by learning, memory, and cognitive deficits. The accumulation of extracellular amyloid β (Aβ) plaques and neurofibrillary tangles (NFTs) of tau are the pathological hallmarks of AD and are explored as targets for clinical diagnosis and therapy. AD pathology is poorly understood and there are no fully approved diagnosis and treatments. Notwithstanding the gap, decades of research in understanding disease mechanisms have revealed the multifactorial nature of AD. As a result, multipronged and holistic approaches are pertinent to targeting multiple biomarkers and targets for developing effective diagnosis and therapeutics. In this perspective, recent developments in Aβ and tau targeted diagnostic and therapeutic tools are discussed. Novel indirect, combination, and circulating biomarkers as potential diagnostic targets are highlighted. We underline the importance of multiplexing and multimodal detection of multiple biomarkers to generate biomarker fingerprints as a reliable diagnostic strategy. The classical therapeutics targeting Aβ and tau aggregation pathways are described with bottlenecks in the strategy. Drug discovery efforts targeting multifaceted toxicity involving protein aggregation, metal toxicity, oxidative stress, mitochondrial damage, and neuroinflammation are highlighted. Recent efforts focused on multipronged strategies to rationally design multifunctional modulators targeting multiple pathological factors are presented as future drug development strategies to discover potential therapeutics for AD.
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Affiliation(s)
- Madhu Ramesh
- Bioorganic Chemistry Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur P.O. Bengaluru Karnataka 560064 India
| | - Thimmaiah Govindaraju
- Bioorganic Chemistry Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur P.O. Bengaluru Karnataka 560064 India
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Zhao W, Jiang L, Wang W, Sang J, Sun Q, Dong Q, Li L, Lu F, Liu F. Design of carboxylated single-walled carbon nanotubes as highly efficient inhibitors against Aβ40 fibrillation based on the HyBER mechanism. J Mater Chem B 2021; 9:6902-6914. [PMID: 34612337 DOI: 10.1039/d1tb00920f] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Misfolding and the subsequent self-assembly of amyloid-β protein (Aβ) is very important in the occurrence of Alzheimer's disease (AD). Thus, inhibition of Aβ aggregation is currently an effective method to alleviate and treat AD. Herein, a carboxylated single-walled carbon nanotube (SWCNT-COOH) was rationally designed based on the hydrophobic binding-electrostatic repulsion (HyBER) mechanism. The inhibitory effect of SWCNT-COOH on Aβ fibrillogenesis was first studied. Based on the results of thioflavin T fluorescence and atomic force microscopy imaging assays, it was shown that SWCNT-COOH can not only effectively inhibit Aβ aggregation, but also depolymerize the mature fibrils of Aβ. In addition, its inhibitory action will be affected by the content of carboxyl groups. Moreover, the influence of SWCNT-COOH on cytotoxicity induced by Aβ was investigated by the MTT method. It was found that SWCNT-COOH can produce an anti-Aβ neuroprotective effect in vitro. Molecular dynamics simulations showed that SWCNT-COOH significantly destroyed the overall and internal structural stability of an Aβ40 trimer. Moreover, SWCNT-COOH interacted strongly with the N-terminal region, turn region and C-terminal region of the Aβ40 trimer via hydrogen bonds, salt bridges and π-π interactions, which triggered a large structural disturbance of the Aβ40 trimer, reduced the β-sheet content of the Aβ40 trimer and led to more disorder in these regions. All the above data not only reveal the suppressive effect of SWCNT-COOH on Aβ aggregation, but also reveal its inhibitory mechanism, which provides a useful clue to exploit anti-Aβ drugs in the future.
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Affiliation(s)
- Wenping Zhao
- Key Laboratory of Industrial Fermentation Microbiology of Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, P. R. China.
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Khayachi A, Schorova L, Alda M, Rouleau GA, Milnerwood AJ. Posttranslational modifications & lithium's therapeutic effect-Potential biomarkers for clinical responses in psychiatric & neurodegenerative disorders. Neurosci Biobehav Rev 2021; 127:424-445. [PMID: 33971223 DOI: 10.1016/j.neubiorev.2021.05.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 03/14/2021] [Accepted: 05/03/2021] [Indexed: 01/03/2023]
Abstract
Several neurodegenerative diseases and neuropsychiatric disorders display aberrant posttranslational modifications (PTMs) of one, or many, proteins. Lithium treatment has been used for mood stabilization for many decades, and is highly effective for large subsets of patients with diverse neurological conditions. However, the differential effectiveness and mode of action are not fully understood. In recent years, studies have shown that lithium alters several protein PTMs, altering their function, and consequently neuronal physiology. The impetus for this review is to outline the links between lithium's therapeutic mode of action and PTM homeostasis. We first provide an overview of the principal PTMs affected by lithium. We then describe several neuropsychiatric disorders in which PTMs have been implicated as pathogenic. For each of these conditions, we discuss lithium's clinical use and explore the putative mechanism of how it restores PTM homeostasis, and thereby cellular physiology. Evidence suggests that determining specific PTM patterns could be a promising strategy to develop biomarkers for disease and lithium responsiveness.
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Affiliation(s)
- A Khayachi
- Montreal Neurological Institute, Department of Neurology & Neurosurgery, McGill University, Montréal, Quebec, Canada.
| | - L Schorova
- McGill University Health Center Research Institute, Montréal, Quebec, Canada
| | - M Alda
- Department of Psychiatry, Dalhousie University, Halifax, Nova Scotia, Canada
| | - G A Rouleau
- Montreal Neurological Institute, Department of Neurology & Neurosurgery, McGill University, Montréal, Quebec, Canada; Department of Human Genetics, McGill University, Montréal, Quebec, Canada.
| | - A J Milnerwood
- Montreal Neurological Institute, Department of Neurology & Neurosurgery, McGill University, Montréal, Quebec, Canada.
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Wang K, Wang L, Chen L, Peng C, Luo B, Mo J, Chen W. Intranasal administration of dauricine loaded on graphene oxide: multi-target therapy for Alzheimer's disease. Drug Deliv 2021; 28:580-593. [PMID: 33729067 PMCID: PMC7971267 DOI: 10.1080/10717544.2021.1895909] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Alzheimer's disease (AD) is a degenerative disease of the central nervous system characterized by progressive cognitive and memory-related impairment. However, current therapeutic treatments have not proved sufficiently effective, mainly due to the complicated pathogenesis of the disease. In this study, a nano-formulation of graphene oxide (GO) loaded with dauricine (Dau) was investigated in terms of the combined anti-inflammatory and anti-oxidative stress effects of Dau and the inhibition of misfolding and aggregation of the amyloid-β (Aβ) protein by GO. Both in vivo and in vitro models were induced using Aβ1-42, and the formulation was administered nasally in mice. The results showed that GO loaded with Dau greatly reduced oxidative stress through increasing superoxide dismutase levels and decreasing reactive oxygen species and malondialdehyde levels in vitro; it also alleviated the cognitive memory deficits and brain glial cell activation in mice with Aβ1-42-induced AD. This proved that GO loaded with Dau could protect against Aβ1-42-induced oxidative damage and apoptosis in both in vitro and in vivo AD models; therefore, GO loaded with Dau has the potential to be an effective and agent for the rapid treatment of AD.
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Affiliation(s)
- Kaixuan Wang
- School of Pharmacy, Guilin Medical University, Guilin, China
| | - Lingfeng Wang
- School of Pharmacy, Zhejiang Chinese Medical University, Zhejiang, China
| | - Ling Chen
- School of Pharmacy, Guilin Medical University, Guilin, China
| | - Chiwei Peng
- School of Pharmacy, Guilin Medical University, Guilin, China
| | - Beijiao Luo
- School of Pharmacy, Guilin Medical University, Guilin, China
| | - Jingxin Mo
- Department of Pharmacy, Affiliated Hospital of Guilin Medical University, Guilin, China
| | - Wei Chen
- Department of Pharmacy, Affiliated Hospital of Guilin Medical University, Guilin, China
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Moorthy H, Datta LP, Govindaraju T. Molecular Architectonics-guided Design of Biomaterials. Chem Asian J 2021; 16:423-442. [PMID: 33449445 DOI: 10.1002/asia.202001445] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 01/12/2021] [Indexed: 11/09/2022]
Abstract
The quest for mastering the controlled engineering of dynamic molecular assemblies is the basis of molecular architectonics. The rational use of noncovalent interactions to programme the molecular assemblies allow the construction of diverse molecular and material architectures with novel functional properties and applications. Understanding and controlling the assembly of molecular systems are daunting tasks owing to the complex factors that govern at the molecular level. Molecular architectures depend on the design of functional molecular modules through the judicious selection of functional core and auxiliary units to guide the precise molecular assembly and co-assembly patterns. Biomolecules with built-in information for molecular recognition are the ultimate examples of evolutionary guided molecular recognition systems that define the structure and functions of living organisms. Explicit use of biomolecules as auxiliary units to command the molecular assemblies of functional molecules is an intriguing exercise in the scheme of molecular architectonics. In this minireview, we discuss the implementation of the principles of molecular architectonics for the development of novel biomaterials with functional properties and applications ranging from sensing, drug delivery to neurogeneration and tissue engineering. We present the molecular designs pioneered by our group owing to the requirement and scope of the article while acknowledging the designs pursued by several research groups that befit the concept.
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Affiliation(s)
- Hariharan Moorthy
- Bioorganic Chemistry Laboratory, New Chemistry Unit and the School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P. O., Bengaluru, 560064, Karnataka, India
| | - Lakshmi Priya Datta
- Bioorganic Chemistry Laboratory, New Chemistry Unit and the School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P. O., Bengaluru, 560064, Karnataka, India
| | - Thimmaiah Govindaraju
- Bioorganic Chemistry Laboratory, New Chemistry Unit and the School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P. O., Bengaluru, 560064, Karnataka, India
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Geng H, Yuan H, Qiu L, Gao D, Cheng Y, Xing C. Inhibition and disaggregation of amyloid β protein fibrils through conjugated polymer–core thermoresponsive micelles. J Mater Chem B 2020; 8:10126-10135. [DOI: 10.1039/d0tb01863e] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The micelles (CPMs) have a thermoresponsive surface and reactive oxygen species (ROS) generating core. At 37 °C, CPMs captured Aβ aggregates to inhibit and disaggregate aggregates under white-light irradiation, reducing Aβ-induced cytotoxicity.
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Affiliation(s)
- Hao Geng
- School of Materials Science and Engineering
- Hebei University of Technology
- Tianjin 300401
- P. R. China
| | - Hongbo Yuan
- Key Laboratory of Hebei Province for Molecular Biophysics
- Institute of Biophysics
- School of Science
- Hebei University of Technology
- Tianjin 300401
| | - Liang Qiu
- Key Laboratory of Hebei Province for Molecular Biophysics
- Institute of Biophysics
- School of Science
- Hebei University of Technology
- Tianjin 300401
| | - Dong Gao
- Key Laboratory of Hebei Province for Molecular Biophysics
- Institute of Biophysics
- School of Science
- Hebei University of Technology
- Tianjin 300401
| | - Yongqiang Cheng
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis
- Ministry of Education
- Key Laboratory of Analytical Science and Technology of Hebei Province
- College of Chemistry and Environmental Science
- Hebei University
| | - Chengfen Xing
- School of Materials Science and Engineering
- Hebei University of Technology
- Tianjin 300401
- P. R. China
- Key Laboratory of Hebei Province for Molecular Biophysics
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