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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
PMID32077621
show 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]