1
|
Odorskaya MV, Mavletova DA, Nesterov AA, Tikhonova OV, Soloveva NA, Reznikova DA, Galanova OO, Vatlin AA, Slynko NM, Vasilieva AR, Peltek SE, Danilenko VN. The use of omics technologies in creating LBP and postbiotics based on the Limosilactobacillus fermentum U-21. Front Microbiol 2024; 15:1416688. [PMID: 38919499 PMCID: PMC11197932 DOI: 10.3389/fmicb.2024.1416688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Accepted: 05/28/2024] [Indexed: 06/27/2024] Open
Abstract
In recent years, there has been an increasing tendency to create drugs based on certain commensal bacteria of the human microbiota and their ingredients, primarily focusing on live biotherapeutics (LBPs) and postbiotics. The creation of such drugs, termed pharmacobiotics, necessitates an understanding of their mechanisms of action and the identification of pharmacologically active ingredients that determine their target properties. Typically, these are complexes of biologically active substances synthesized by specific strains, promoted as LBPs or postbiotics (including vesicles): proteins, enzymes, low molecular weight metabolites, small RNAs, etc. This study employs omics technologies, including genomics, proteomics, and metabolomics, to explore the potential of Limosilactobacillus fermentum U-21 for innovative LBP and postbiotic formulations targeting neuroinflammatory processes. Proteomic techniques identified and quantified proteins expressed by L. fermentum U-21, highlighting their functional attributes and potential applications. Key identified proteins include ATP-dependent Clp protease (ClpL), chaperone protein DnaK, protein GrpE, thioredoxin reductase, LysM peptidoglycan-binding domain-containing protein, and NlpC/P60 domain-containing protein, which have roles in disaggregase, antioxidant, and immunomodulatory activities. Metabolomic analysis provided insights into small-molecule metabolites produced during fermentation, revealing compounds with anti-neuroinflammatory activity. Significant metabolites produced by L. fermentum U-21 include GABA (γ-aminobutyric acid), niacin, aucubin, and scyllo-inositol. GABA was found to stabilize neuronal activity, potentially counteracting neurodegenerative processes. Niacin, essential for optimal nervous system function, was detected in vesicles and culture fluid, and it modulates cytokine production, maintaining immune homeostasis. Aucubin, an iridoid glycoside usually secreted by plants, was identified as having antioxidant properties, addressing issues of bioavailability for therapeutic use. Scyllo-inositol, identified in vesicles, acts as a chemical chaperone, reducing abnormal protein clumps linked to neurodegenerative diseases. These findings demonstrate the capability of L. fermentum U-21 to produce bioactive substances that could be harnessed in the development of pharmacobiotics for neurodegenerative diseases, contributing to their immunomodulatory, anti-neuroinflammatory, and neuromodulatory activities. Data of the HPLC-MS/MS analysis are available via ProteomeXchange with identifier PXD050857.
Collapse
Affiliation(s)
- Maya V. Odorskaya
- Laboratory of Bacterial Genetics, Vavilov Institute of General Genetics Russian Academy of Sciences, Moscow, Russia
| | - Dilara A. Mavletova
- Laboratory of Bacterial Genetics, Vavilov Institute of General Genetics Russian Academy of Sciences, Moscow, Russia
| | - Andrey A. Nesterov
- Laboratory of Bacterial Genetics, Vavilov Institute of General Genetics Russian Academy of Sciences, Moscow, Russia
- Institute of Environmental Engineering, RUDN University, Moscow, Russia
| | | | | | - Diana A. Reznikova
- Laboratory of Bacterial Genetics, Vavilov Institute of General Genetics Russian Academy of Sciences, Moscow, Russia
- Phystech School of Biological and Medical Physics, Moscow Institute of Physics and Technology, Dolgoprudny, Russia
| | - Olesya O. Galanova
- Laboratory of Bacterial Genetics, Vavilov Institute of General Genetics Russian Academy of Sciences, Moscow, Russia
- Phystech School of Biological and Medical Physics, Moscow Institute of Physics and Technology, Dolgoprudny, Russia
| | - Aleksey A. Vatlin
- Laboratory of Bacterial Genetics, Vavilov Institute of General Genetics Russian Academy of Sciences, Moscow, Russia
| | - Nikolai M. Slynko
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
| | - Asya R. Vasilieva
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
| | - Sergey E. Peltek
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
| | - Valery N. Danilenko
- Laboratory of Bacterial Genetics, Vavilov Institute of General Genetics Russian Academy of Sciences, Moscow, Russia
- Brain Science Institute, Research Center of Neurology, Moscow, Russia
| |
Collapse
|
2
|
Santos N, Segura L, Lewis A, Pham T, Cheng KH. Multiscale Modeling of Macromolecular Interactions between Tau-Amylin Oligomers and Asymmetric Lipid Nanodomains That Link Alzheimer's and Diabetic Diseases. Molecules 2024; 29:740. [PMID: 38338484 PMCID: PMC10856442 DOI: 10.3390/molecules29030740] [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: 12/26/2023] [Revised: 01/17/2024] [Accepted: 02/03/2024] [Indexed: 02/12/2024] Open
Abstract
The molecular events of protein misfolding and self-aggregation of tau and amylin are associated with the progression of Alzheimer's and diabetes, respectively. Recent studies suggest that tau and amylin can form hetero-tau-amylin oligomers. Those hetero-oligomers are more neurotoxic than homo-tau oligomers. So far, the detailed interactions between the hetero-oligomers and the neuronal membrane are unknown. Using multiscale MD simulations, the lipid binding and protein folding behaviors of hetero-oligomers on asymmetric lipid nanodomains or raft membranes were examined. Our raft membranes contain phase-separated phosphatidylcholine (PC), cholesterol, and anionic phosphatidylserine (PS) or ganglioside (GM1) in one leaflet of the lipid bilayer. The hetero-oligomers bound more strongly to the PS and GM1 than other lipids via the hydrophobic and hydrophilic interactions, respectively, in the raft membranes. The hetero-tetramer disrupted the acyl chain orders of both PC and PS in the PS-containing raft membrane, but only the GM1 in the GM1-containing raft membrane as effectively as the homo-tau-tetramer. We discovered that the alpha-helical content in the heterodimer was greater than the sum of alpha-helical contents from isolated tau and amylin monomers on both raft membranes, indicative of a synergetic effect of tau-amylin interactions in surface-induced protein folding. Our results provide new molecular insights into understanding the cross-talk between Alzheimer's and diabetes.
Collapse
Affiliation(s)
- Natalia Santos
- Neuroscience Department, Trinity University, San Antonio, TX 78212, USA; (N.S.); (L.S.); (A.L.)
| | - Luthary Segura
- Neuroscience Department, Trinity University, San Antonio, TX 78212, USA; (N.S.); (L.S.); (A.L.)
| | - Amber Lewis
- Neuroscience Department, Trinity University, San Antonio, TX 78212, USA; (N.S.); (L.S.); (A.L.)
| | - Thuong Pham
- Physics Department, Trinity University, San Antonio, TX 78212, USA;
| | - Kwan H. Cheng
- Neuroscience Department, Trinity University, San Antonio, TX 78212, USA; (N.S.); (L.S.); (A.L.)
- Physics Department, Trinity University, San Antonio, TX 78212, USA;
| |
Collapse
|
3
|
Kalitnik A, Grelich-Mucha M, Olesiak-Bańska J. Chitosan oligosaccharides inhibit the fibrillation of insulin and disassemble its preformed fibrils. Int J Biol Macromol 2024; 254:127857. [PMID: 37924913 DOI: 10.1016/j.ijbiomac.2023.127857] [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: 06/18/2023] [Revised: 10/02/2023] [Accepted: 11/01/2023] [Indexed: 11/06/2023]
Abstract
In the current study, we first established that chitosan oligosaccharides (COS) have significant anti-fibrillogenic and fibril-destabilising effects on bovine insulin in vitro that proportionally expand with concentration growth. The obtained data were supported by the Thioflavin T (ThT) assay, circular dichroism (CD), attenuated total reflectance Fourier-transform infrared (ATR-FTIR) spectroscopy, and atomic force microscopy (AFM). Interestingly, coincubation of insulin with COS in the ratio of 1 to 10 over 48 h at 37 °C leads to full prevention of insulin aggregation, and in the case of preformed fibrils, results in their destabilisation and disaggregation. Moreover, both a cationic polymer of allylamine (PAH) and a sulphated oligosaccharide (CROS) prepared from carrageenan had no inhibitory effect on insulin amyloid formation. Thus, we proposed that COS modulates insulin amyloid formation due to the presence of linear sugar units, the degree of polymerization, and the free amino group providing a positive charge. These findings highlight the potential implications of COS as a promising substance for the treatment of insulin-dependent diabetes mellitus and localised insulin-derived amyloidosis and, moreover, provide a new insight into the mechanism of the anti-diabetic and antitoxic properties of chitosan and chitosan-based agents.
Collapse
Affiliation(s)
- Aleksandra Kalitnik
- Department of Biomedical Engineering, Faculty of Fundamental Problems of Technology, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland.
| | - Manuela Grelich-Mucha
- Institute of Advanced Materials, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Joanna Olesiak-Bańska
- Institute of Advanced Materials, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| |
Collapse
|
4
|
Narsimulu B, Jakkula P, Qureshi R, Nasim F, Qureshi IA. Inhibition and structural insights of leishmanial glutamyl-tRNA synthetase for designing potent therapeutics. Int J Biol Macromol 2024; 254:127756. [PMID: 37907177 DOI: 10.1016/j.ijbiomac.2023.127756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 10/08/2023] [Accepted: 10/27/2023] [Indexed: 11/02/2023]
Abstract
Aminoacyl-tRNA synthetases (aaRSs), essential components of the protein synthesizing machinery, have been often chosen for devising therapeutics against parasitic diseases. Due to their relevance in drug development, the current study was designed to explore functional and structural aspects of Leishmania donovani glutamyl-tRNA synthetase (LdGluRS). Hence, LdGluRS was cloned into an expression vector and purified to homogeneity using chromatographic techniques. Purified protein showed maximum enzymatic activity at physiological pH, with more binding capacity towards its cofactor (Adenosine triphosphate, 0.06 ± 0.01 mM) than the cognate substrate (L-glutamate, 9.5 ± 0.5 mM). Remarkably, salicylate inhibited LdGluRS competitively with respect to L-glutamate and exhibited druglikeness with negligible effect on human macrophages. The protein possessed more α-helices (43 %) than β-sheets (12 %), whereas reductions in thermal stability and cofactor-binding affinity, along with variation in mode of inhibition after mutation signified the role of histidine (H60) as a catalytic residue. LdGluRS could also generate a pro-inflammatory milieu in human macrophages by upregulating cytokines. The docking study demonstrated the placement of salicylate into LdGluRS substrate-binding site, and the complex was found to be stable during molecular dynamics (MD) simulation. Altogether, our study highlights the understanding of molecular inhibition and structural features of glutamyl-tRNA synthetase from kinetoplastid parasites.
Collapse
Affiliation(s)
- Bandigi Narsimulu
- Department of Biotechnology & Bioinformatics, School of Life Sciences, University of Hyderabad, Prof. C.R. Rao Road, Hyderabad 500046, India
| | - Pranay Jakkula
- Department of Biotechnology & Bioinformatics, School of Life Sciences, University of Hyderabad, Prof. C.R. Rao Road, Hyderabad 500046, India
| | - Rahila Qureshi
- Centre for DNA Fingerprinting and Diagnostics, Hyderabad 500039, India
| | - Fouzia Nasim
- Department of Biotechnology & Bioinformatics, School of Life Sciences, University of Hyderabad, Prof. C.R. Rao Road, Hyderabad 500046, India
| | - Insaf Ahmed Qureshi
- Department of Biotechnology & Bioinformatics, School of Life Sciences, University of Hyderabad, Prof. C.R. Rao Road, Hyderabad 500046, India.
| |
Collapse
|
5
|
Lv Y, Zheng Z, Liu R, Guo J, Zhang C, Xie Y. Monoamine oxidase B inhibitors based on natural privileged scaffolds: A review of systematically structural modification. Int J Biol Macromol 2023; 251:126158. [PMID: 37549764 DOI: 10.1016/j.ijbiomac.2023.126158] [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: 06/06/2023] [Revised: 07/28/2023] [Accepted: 08/04/2023] [Indexed: 08/09/2023]
Abstract
Monoamine oxidase is a flavin enzyme that catalyzes the oxidation of monoamine neurotransmitters in the brain. Various toxic by-products, aldehydes and hydrogen peroxide produced during the catalytic process, can cause oxidative stress and neuronal cell death. Overexpression of MAO-B and insufficient dopamine concentration are recognized as pathological factors in neurodegenerative diseases (NDs) including Parkinson's disease (PD) and Alzheimer's disease (AD). Therefore, the inhibition of MAO-B is an attractive target for the treatment of NDs. Despite significant efforts, few selective and reversible MAO-B inhibitors have been clinically approved. Natural products have emerged as valuable sources of lead compounds in drug discovery. Compounds such as chromone, coumarin, chalcone, caffeine, and aurone, present in natural structures, are considered as privileged scaffolds in the synthesis of MAO-B inhibitors. In this review, we summarized the structure-activity relationship (SAR) of MAO-B inhibitors based on the naturally privileged scaffolds over the past 20 years. Additionally, we proposed a balanced discussion on the advantages and limitations of natural scaffold-based MAO-B inhibitors with providing a future perspective in drug development.
Collapse
Affiliation(s)
- Yangjing Lv
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Zhiyuan Zheng
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Renzheng Liu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Jianan Guo
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Changjun Zhang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China.
| | - Yuanyuan Xie
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China; Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceutical, Zhejiang University of Technology, Hangzhou, China; Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, China; Key Laboratory of Pharmaceutical Engineering of Zhejiang Province, China.
| |
Collapse
|
6
|
Biala G, Kedzierska E, Kruk-Slomka M, Orzelska-Gorka J, Hmaidan S, Skrok A, Kaminski J, Havrankova E, Nadaska D, Malik I. Research in the Field of Drug Design and Development. Pharmaceuticals (Basel) 2023; 16:1283. [PMID: 37765091 PMCID: PMC10536713 DOI: 10.3390/ph16091283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 08/28/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023] Open
Abstract
The processes used by academic and industrial scientists to discover new drugs have recently experienced a true renaissance, with many new and exciting techniques being developed over the past 5-10 years alone. Drug design and discovery, and the search for new safe and well-tolerated compounds, as well as the ineffectiveness of existing therapies, and society's insufficient knowledge concerning the prophylactics and pharmacotherapy of the most common diseases today, comprise a serious challenge. This can influence not only the quality of human life, but also the health of whole societies, which became evident during the COVID-19 pandemic. In general, the process of drug development consists of three main stages: drug discovery, preclinical development using cell-based and animal models/tests, clinical trials on humans and, finally, forward moving toward the step of obtaining regulatory approval, in order to market the potential drug. In this review, we will attempt to outline the first three most important consecutive phases in drug design and development, based on the experience of three cooperating and complementary academic centers of the Visegrád group; i.e., Medical University of Lublin, Poland, Masaryk University of Brno, Czech Republic, and Comenius University Bratislava, Slovak Republic.
Collapse
Affiliation(s)
- Grazyna Biala
- Chair and Department of Pharmacology with Pharmacodynamics, Medical University of Lublin, Chodźki 4A, 20-093 Lublin, Poland; (E.K.); (M.K.-S.); (J.O.-G.)
| | - Ewa Kedzierska
- Chair and Department of Pharmacology with Pharmacodynamics, Medical University of Lublin, Chodźki 4A, 20-093 Lublin, Poland; (E.K.); (M.K.-S.); (J.O.-G.)
| | - Marta Kruk-Slomka
- Chair and Department of Pharmacology with Pharmacodynamics, Medical University of Lublin, Chodźki 4A, 20-093 Lublin, Poland; (E.K.); (M.K.-S.); (J.O.-G.)
| | - Jolanta Orzelska-Gorka
- Chair and Department of Pharmacology with Pharmacodynamics, Medical University of Lublin, Chodźki 4A, 20-093 Lublin, Poland; (E.K.); (M.K.-S.); (J.O.-G.)
| | - Sara Hmaidan
- Chair and Department of Pharmacology with Pharmacodynamics, Medical University of Lublin, Chodźki 4A, 20-093 Lublin, Poland; (E.K.); (M.K.-S.); (J.O.-G.)
| | - Aleksandra Skrok
- Chair and Department of Pharmacology with Pharmacodynamics, Medical University of Lublin, Chodźki 4A, 20-093 Lublin, Poland; (E.K.); (M.K.-S.); (J.O.-G.)
| | - Jakub Kaminski
- Chair and Department of Pharmacology with Pharmacodynamics, Medical University of Lublin, Chodźki 4A, 20-093 Lublin, Poland; (E.K.); (M.K.-S.); (J.O.-G.)
| | - Eva Havrankova
- Department of Chemical Drugs, Faculty of Pharmacy, Masaryk University of Brno, 601 77 Brno, Czech Republic;
| | - Dominika Nadaska
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Comenius University Bratislava, 832 32 Bratislava, Slovakia (I.M.)
| | - Ivan Malik
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Comenius University Bratislava, 832 32 Bratislava, Slovakia (I.M.)
| |
Collapse
|
7
|
Mou HZ, Zhao CL, Song J, Xing L, Chen HY, Xu JJ. Ambient Temperature Affects Protein Self-Assembly by Interfering with the Interfacial Aggregation Behavior. ACS OMEGA 2023; 8:24999-25008. [PMID: 37483188 PMCID: PMC10357426 DOI: 10.1021/acsomega.3c01606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 06/22/2023] [Indexed: 07/25/2023]
Abstract
Amyloid fibrillation is known to be associated with degenerative diseases, and mature fibrils are also considered as valuable biomedical materials. Thus, the mechanism and influencing factors of fibrillation have always been the focus of research. However, in vitro studies are always plagued by low reproducibility of kinetics and the molecular mechanism of amyloid fibrillation is under debate until now. Here, we identified the ambient temperature (AT) as a non-negligible interfering factor in in vitro self-assembly of globular protein hen egg-white lysozyme for the first time. By multimodal molecular spectroscopy methods, not only the effect of ATs on the kinetics of protein aggregation was described but also the conformational changes of the molecular structure with different ATs were captured. Through investigating the dependence of interfacial area and catalysis, the reason for this influence was construed by the various aggregation behaviors of protein molecules in the two-phase interface. The results suggest that in vitro mechanism research on protein fibrillation needs to first clarify the AT for a more accurate comparative analysis. The proposal of this concept will provide a new clue for a deeper understanding of the mechanism of protein self-assembly and may have an impact on evaluating the efficiency of amyloid accelerators or inhibitors based on the comparative analysis of protein self-assembly.
Collapse
|
8
|
Narsimulu B, Qureshi R, Jakkula P, Singh P, Arifuddin M, Qureshi IA. Exploration of seryl tRNA synthetase to identify potent inhibitors against leishmanial parasites. Int J Biol Macromol 2023; 237:124118. [PMID: 36963547 DOI: 10.1016/j.ijbiomac.2023.124118] [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: 01/31/2023] [Revised: 03/13/2023] [Accepted: 03/17/2023] [Indexed: 03/26/2023]
Abstract
Aminoacyl-tRNA synthetases are crucial enzymes for cellular protein metabolism and have been considered as an attractive target for development of new antimicrobials. In the current study, seryl tRNA synthetase of Leishmania donovani (LdSerRS) and its mutants were purified and characterized through biochemical and structural methods. Purified LdSerRS was found to be enzymatically active and exhibited more alpha helices in secondary structure. The enzymatic activity of purified protein was observed as highest near physiological temperature and pH. Mutation in ATP binding residues (R295 and E297) demonstrated reduction in the affinity for cofactor with no significant deviation in secondary structure. In vitro inhibition studies with ureidosulfocoumarin derivatives helped to identify Comp 5l as a specific inhibitor for leishmanial SerRS that showed lesser potency towards purified HsSerRS. The identified compound presented competitive mode of inhibition for LdSerRS and also revealed druglikeness along with very low toxicity for human macrophages. Structural analysis of protein and ligand complex depicted the binding of Comp 5l into the cofactor binding site of LdSerRS with high affinity succeeded by validation employing molecular dynamics simulations. Altogether, our study presents a promising scaffold to explore small molecules to target the enzymatic activity of leishmanial SerRS to develop the specific therapeutics.
Collapse
Affiliation(s)
- Bandigi Narsimulu
- Department of Biotechnology & Bioinformatics, School of Life Sciences, University of Hyderabad, Prof. C.R. Rao Road, Hyderabad 500046, India
| | - Rahila Qureshi
- Centre for DNA Fingerprinting and Diagnostics, Hyderabad 500039, India
| | - Pranay Jakkula
- Department of Biotechnology & Bioinformatics, School of Life Sciences, University of Hyderabad, Prof. C.R. Rao Road, Hyderabad 500046, India
| | - Priti Singh
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India
| | - Mohammed Arifuddin
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India
| | - Insaf Ahmed Qureshi
- Department of Biotechnology & Bioinformatics, School of Life Sciences, University of Hyderabad, Prof. C.R. Rao Road, Hyderabad 500046, India.
| |
Collapse
|
9
|
Khan A, Alam MT, Iqbal A, Siddiqui T, Ali A. Microwave-assisted one-pot multicomponent synthesis of steroidal pyrido[2,3-d]pyrimidines and their possible implications in drug development. Steroids 2023; 190:109154. [PMID: 36521632 DOI: 10.1016/j.steroids.2022.109154] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 12/05/2022] [Accepted: 12/09/2022] [Indexed: 12/14/2022]
Abstract
Protein misfolding can lead to fibrillar and non-fibrillar deposits which are the signs of countless human diseases. A promising strategy for the prevention of such diseases is the inhibition of protein aggregation, and the most crucial step toward effective prevention is the development of small molecules having the potential for protein-aggregation inhibition. In this search, a series of novel steroidal pyrido[2,3-d]pyrimidines have been synthesized employing steroidal ketone, substituted aldehydes, and 2,6-diaminopyrimidin-4(3H)-one through the microwave-assisted one-pot multicomponent methodology. The aggregation inhibition potential of newly synthesized compounds was evaluated on human lysozyme (HLZ). All the synthesized compounds were found to be efficient in the inhibition of protein aggregation in carefully designed in vitro experiments. Moreover, molecular docking studies also determine the binding interactions between all the synthesized compounds and native HLZ through hydrogen bonding. The structures of synthesized compounds were also elucidated using various spectroscopic techniques.
Collapse
Affiliation(s)
- Asna Khan
- Department of Chemistry, Faculty of Science, Aligarh Muslim University, Aligarh 202 002, UP, India
| | - Md Tauqir Alam
- Department of Biochemistry, Faculty of Life Science, Aligarh Muslim University, Aligarh 202 002, UP, India
| | - Arfeen Iqbal
- Department of Chemistry, Faculty of Science, Aligarh Muslim University, Aligarh 202 002, UP, India
| | - Tabassum Siddiqui
- Department of Chemistry, Faculty of Science, Aligarh Muslim University, Aligarh 202 002, UP, India
| | - Abad Ali
- Department of Chemistry, Faculty of Science, Aligarh Muslim University, Aligarh 202 002, UP, India.
| |
Collapse
|
10
|
Wang Z, Yang D, Jiang Y, Wang Y, Niu M, Wang C, Luo H, Xu H, Li J, Zhang YW, Zhang X. Loss of RAB39B does not alter MPTP-induced Parkinson's disease-like phenotypes in mice. Front Aging Neurosci 2023; 15:1087823. [PMID: 36761179 PMCID: PMC9905435 DOI: 10.3389/fnagi.2023.1087823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 01/05/2023] [Indexed: 01/26/2023] Open
Abstract
Parkinson's disease (PD) is a common neurodegenerative movement disorder with undetermined etiology. A major pathological hallmark of PD is the progressive degeneration of dopaminergic neurons in the substantia nigra. Loss-of-function mutations in the RAB39B gene, which encodes a neuronal-specific small GTPase RAB39B, have been associated with X-linked intellectual disability and pathologically confirmed early-onset PD in multiple families. However, the role of RAB39B in PD pathogenesis remains elusive. In this study, we treated Rab39b knock-out (KO) mice with MPTP to explore whether RAB39B deficiency could alter MPTP-induced behavioral impairments and dopaminergic neuron degeneration. Surprisingly, we found that MPTP treatment impaired motor activity and led to loss of tyrosine hydroxylase-positive dopaminergic neurons and gliosis in both WT and Rab39b KO mice. However, RAB39B deficiency did not alter MPTP-induced impairments. These results suggest that RAB39B deficiency does not contribute to PD-like phenotypes through compromising dopaminergic neurons in mice; and its role in PD requires further scrutiny.
Collapse
Affiliation(s)
- Zijie Wang
- Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, School of Medicine, Center for Brain Sciences, The First Affiliated Hospital of Xiamen University, Institute of Neuroscience, Xiamen University, Xiamen, China,Department of Neurosurgery, Xiang’an Hospital of Xiamen University, Xiamen, China
| | - Dingting Yang
- Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, School of Medicine, Center for Brain Sciences, The First Affiliated Hospital of Xiamen University, Institute of Neuroscience, Xiamen University, Xiamen, China,Department of Neurosurgery, Xiang’an Hospital of Xiamen University, Xiamen, China
| | - Yiru Jiang
- Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, School of Medicine, Center for Brain Sciences, The First Affiliated Hospital of Xiamen University, Institute of Neuroscience, Xiamen University, Xiamen, China
| | - Yong Wang
- Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, School of Medicine, Center for Brain Sciences, The First Affiliated Hospital of Xiamen University, Institute of Neuroscience, Xiamen University, Xiamen, China
| | - Mengxi Niu
- Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, School of Medicine, Center for Brain Sciences, The First Affiliated Hospital of Xiamen University, Institute of Neuroscience, Xiamen University, Xiamen, China
| | - Chong Wang
- Department of Basic Medical Sciences, School of Medicine, Xiamen University, Xiamen, China
| | - Hong Luo
- Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, School of Medicine, Center for Brain Sciences, The First Affiliated Hospital of Xiamen University, Institute of Neuroscience, Xiamen University, Xiamen, China
| | - Huaxi Xu
- Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, School of Medicine, Center for Brain Sciences, The First Affiliated Hospital of Xiamen University, Institute of Neuroscience, Xiamen University, Xiamen, China
| | - Jingwen Li
- Department of Neurosurgery, Xiang’an Hospital of Xiamen University, Xiamen, China
| | - Yun-wu Zhang
- Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, School of Medicine, Center for Brain Sciences, The First Affiliated Hospital of Xiamen University, Institute of Neuroscience, Xiamen University, Xiamen, China
| | - Xian Zhang
- Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, School of Medicine, Center for Brain Sciences, The First Affiliated Hospital of Xiamen University, Institute of Neuroscience, Xiamen University, Xiamen, China,*Correspondence: Xian Zhang, ✉
| |
Collapse
|