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Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Sci+Rep 2021 ; 11 (1): 8692 Nephropedia Template TP
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Nanoparticle composite TPNT1 is effective against SARS-CoV-2 and influenza viruses #MMPMID33888738
Chang SY; Huang KY; Chao TL; Kao HC; Pang YH; Lu L; Chiu CL; Huang HC; Cheng TR; Fang JM; Yang PC
Sci Rep 2021[Apr]; 11 (1): 8692 PMID33888738show ga
A metal nanoparticle composite, namely TPNT1, which contains Au-NP (1 ppm), Ag-NP (5 ppm), ZnO-NP (60 ppm) and ClO(2) (42.5 ppm) in aqueous solution was prepared and characterized by spectroscopy, transmission electron microscopy, dynamic light scattering analysis and potentiometric titration. Based on the in vitro cell-based assay, TPNT1 inhibited six major clades of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) with effective concentration within the range to be used as food additives. TPNT1 was shown to block viral entry by inhibiting the binding of SARS-CoV-2 spike proteins to the angiotensin-converting enzyme 2 (ACE2) receptor and to interfere with the syncytium formation. In addition, TPNT1 also effectively reduced the cytopathic effects induced by human (H1N1) and avian (H5N1) influenza viruses, including the wild-type and oseltamivir-resistant virus isolates. Together with previously demonstrated efficacy as antimicrobials, TPNT1 can block viral entry and inhibit or prevent viral infection to provide prophylactic effects against both SARS-CoV-2 and opportunistic infections.
|Angiotensin-Converting Enzyme 2/metabolism[MESH]
|Antiviral Agents/chemistry/pharmacology[MESH]
|Drug Resistance, Viral/drug effects[MESH]
|Food Additives/pharmacology[MESH]
|Gold/chemistry/*pharmacology[MESH]
|HEK293 Cells[MESH]
|Humans[MESH]
|Influenza A Virus, H1N1 Subtype/drug effects/*physiology[MESH]
|Influenza A Virus, H5N1 Subtype/drug effects/*physiology[MESH]