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Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Small 2020 ; 16 (13): e1906206 Nephropedia Template TP
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Glycyrrhizic-Acid-Based Carbon Dots with High Antiviral Activity by Multisite Inhibition Mechanisms #MMPMID32077621
Tong T; Hu H; Zhou J; Deng S; Zhang X; Tang W; Fang L; Xiao S; Liang J
Small 2020[Apr]; 16 (13): e1906206 PMID32077621show ga
With the gradual usage of carbon dots (CDs) in the area of antiviral research, attempts have been stepped up to develop new antiviral CDs with high biocompatibility and antiviral effects. In this study, a kind of highly biocompatible CDs (Gly-CDs) is synthesized from active ingredient (glycyrrhizic acid) of Chinese herbal medicine by a hydrothermal method. Using the porcine reproductive and respiratory syndrome virus (PRRSV) as a model, it is found that the Gly-CDs inhibit PRRSV proliferation by up to 5 orders of viral titers. Detailed investigations reveal that Gly-CDs can inhibit PRRSV invasion and replication, stimulate antiviral innate immune responses, and inhibit the accumulation of intracellular reactive oxygen species (ROS) caused by PRRSV infection. Proteomics analysis demonstrates that Gly-CDs can stimulate cells to regulate the expression of some host restriction factors, including DDX53 and NOS3, which are directly related to PRRSV proliferation. Moreover, it is found that Gly-CDs also remarkably suppress the propagation of other viruses, such as pseudorabies virus (PRV) and porcine epidemic diarrhea virus (PEDV), suggesting the broad antiviral activity of Gly-CDs. The integrated results demonstrate that Gly-CDs possess extraordinary antiviral activity with multisite inhibition mechanisms, providing a promising candidate for alternative therapy for PRRSV infection.
|*Microbial Viability/drug effects[MESH]
|*Porcine Reproductive and Respiratory Syndrome[MESH]
|Animals[MESH]
|Antiviral Agents/chemistry/pharmacology[MESH]
|Carbon/*pharmacology[MESH]
|Glycyrrhizic Acid/*pharmacology[MESH]
|Immunity, Innate/drug effects[MESH]
|Porcine respiratory and reproductive syndrome virus/drug effects[MESH]