Although SARS-CoV-2 entry to cells strictly depends on angiotensin-converting enzyme 2 (ACE2), the virus also needs transmembrane serine protease 2 (TMPRSS2) for its spike protein priming. It has been shown that the entrance of SARS-CoV-2 through ACE2 can be blocked by cellular TMPRSS2 blockers. The main aim of this study was to find potential inhibitor(s) of TMPRSS2 through virtual screening against a homology model of TMPRSS2 using the library of marine natural products (MNPs). The homology modeling technique for generating a three-dimensional structure of TMPRSS2 was applied. Molecular docking, MM-GBSA and absorption, distribution, metabolism, excretion (ADME) evaluations were performed to investigate the inhibitory activity of marine natural products (MNPs) against TMPRSS2 and their pharmacokinetic properties. Camostat and nafamostat mesylate were used as the standard inhibitory molecules. Seven MNPs were able to inhibit TMPRSS2 better than the standard compounds. MNP 10 with CAS number 107503-09-3, called Watasenia β-D- Preluciferyl glucopyrasoiuronic acid, was found to be the best inhibitor of TMPRSS2 with acceptable pharmacokinetic properties. Herein, for the first time, a new marine natural product was introduced with potent inhibitory effects against TMPRSS2. MNP 10 exhibited favorable drug-like pharmacokinetic properties and it promises a novel TMPRSS2 blocker to combat SARS-CoV-2.
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http://dx.doi.org/10.3389/fchem.2021.722633 | DOI Listing |
Zookeys
December 2024
Department of Biological Sciences, University of Alabama, Tuscaloosa, Alabama, USA.
Solenogastres is a group of mollusks with evolutionary and ecological importance. Nevertheless, their diversity is underestimated and knowledge about the distribution of the approximately 300 formally described species is limited. Factors that contribute to this include their small size and frequent misidentification by non-specialists.
View Article and Find Full Text PDFSmall Methods
January 2025
Fujian Provincial Key Laboratory of Functional Marine Sensing Materials, College of Material and Chemical Engineering, Minjiang University, Fuzhou, 350108, P. R. China.
The cost-effective and scalable synthesis and patterning of soft nanomaterial composites with improved electrical conductivity and mechanical stretchability remains challenging in wearable devices. This work reports a scalable, low-cost fabrication approach to directly create and pattern crumpled porous graphene/NiS nanocomposites with high mechanical stretchability and electrical conductivity through laser irradiation combined with electrodeposition and a pre-strain strategy. With modulated mechanical stretchability and electrical conductivity, the crumpled graphene/NiS nanocomposite can be readily patterned into target geometries for application in a standalone stretchable sensing platform.
View Article and Find Full Text PDFChem Biodivers
January 2025
SRM Institute of Science and Technology: SRM Institute of Science and Technology (Deemed to be University), Department of Chemical Engineering, Kattankulathur, 603203, Chengalpattu, INDIA.
The rising threat of antimicrobial resistance among pathogens highlights the critical need for novel antimicrobial agents. This study explores the potential of natural products by investigating hexane extracts from the marine sponge Haliclona fibulata (HF) for their antibacterial efficacy. The well diffusion method of HF extract showed significant antibacterial activity against P.
View Article and Find Full Text PDFPhilos Trans R Soc Lond B Biol Sci
January 2025
University College London Institute for Sustainable Resources, Central House, 14 Upper Woburn Place, London WC1H 0NN, UK.
The natural capital concept positions the natural environment as an asset, crucial for the flow of goods and benefits to humanity. There is a growing trend in applying this concept in marine environmental management in the United Kingdom (UK). This study evaluates six varied marine decisions across England, Scotland and Wales.
View Article and Find Full Text PDFJ Nanobiotechnology
January 2025
Department of Laboratory, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710032, China.
Background: Cardiac fibrosis plays a critical role in the progression of various forms of heart disease, significantly increasing the risk of sudden cardiac death. However, currently, there are no therapeutic strategies available to prevent the onset of cardiac fibrosis.
Methods And Results: Here, biomimetic ATP-responsive nanozymes based on genetically engineered cell membranes are adapted to specifically recognize activated cardiac fibroblasts (CFs) for the treatment of cardiac fibrosis.
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