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Quercetin (3,3′,4′,5,7-pentahydroxy-2-phenylchromen-4-one), the major representative of the flavonoid subclass of flavonols, is derived from the Latin word “Quercetum,” meaning “Oak Forest”. It can be found in a variety of foods, including fruits and vegetables, and has been reported to be effective against a variety of viruses.
Phytochemical | Plant Name | Family | Plant Parts | Virus Target | Cell | Bioassay | Viral Step or MOA | Reference |
---|---|---|---|---|---|---|---|---|
Quercetin-3-o-α-L-rhamnopyranoside (Q3R) | Rapanea melanophloeos | Myrsinaceae | Whole plant | IAV | MDCK cell | In vitro | Inhibit viral entry and virus replication | [11] |
Quercetin 3-glucoside | Dianthus superbus L. | Caryophyllaceae | Whole plant | IAV | MDCK cell | In vitro and in silico | Inhibit viral replication | [12] |
Quercitrin (Quercetin-3-L-rhamnoside) | Houttuynia cordata Thunb. | Saururaceae | Leaf (Aerial parts) |
IAV (Anti-influenza A/WS/33 virus) |
Mammalian kidney (BHK) | In vitro | Inhibit replication in the initial stage of virus infection by indirect interaction with virus particles | [13] |
Rutin (Quercetin-3-rutinoside) | Prunus domestica | Rosaceae | Fruit | HCV | Human hepatocellular carcinoma cells Huh 7 and Huh 7.5 | In vitro and ex vivo | Inhibit the early stage of viral entry | [14] |
Quercetin | Psidium guajava | Myrtaceae | Bark | DENV | Epithelial VERO cells (Cercopithecus aethiops) | In vitro and in silico | Directly inhibit the viral NS3 protein and could interrupt virus entry by inhibiting fusion |
[15] |
Quercetin | Embelia ribes | Myrsinaceae | Seeds | HCV | Huh-7 cells | In vitro | Inhibit NS3 protease activity and HCV replication. |
[16] |
Quercetin 7-rhamnoside | Houttuynia cordata | Saururaceae | Aerial Parts | Porcine epidemic diarrhea virus (PEDV CV 777) | Vero (african green monkey kidney cell line; ATCC CCR-81) ST (pig testis cell line; ATCC CRL-1746) |
In vitro and In vivo | Inhibit at an early stage of viral replication after infection | [17] |
Quercetin and its glycoside derivatives | Bauhinia longifolia (Bong.) | Fabaceae | Leaves | Mayaro viruses (ATCC VR-66, lineage TR 4675) |
Vero cells (African green monkey kidney, ATCC CCL-81) | In vitro | glycosilation re duces the antiviral activity of Quercetin against |
[18] |
DihydroQuercetin (DHQ) | Larix sibirica (larch wood) | Pinaceae | Wood | Coxsackie virus B4 Powers strain | Vero cells Inbred, female mice |
In vivo | Decrease the replication of viral protein by reducing ROS generation | [19] |
Quercetin-7-o-glucoside | Dianthus superbus | Caryophyllaceae | Leaves | Influenz viruses A/Vic/3/75 (H3N2, VR-822), A/PR/8/34 (H1N1, VR-1469), B/Maryland/1/59 (VR-296) and B/Lee/40 (VR-1535D) |
Madin-Darby Canine Kidney (MDCK) cell | In Vitro | Inhibit influenza viral RNA polymerase PB2 |
[20] |
Quercetin and Isoquercitrin | Houttuynia cordata | Saururaceae | Whole plant | Herpes simplex virus (HSV) | African green monkey kidney cells (Vero, ATCC CCL-81) and human epithelial carcinoma cells | In vitro | Quercetin and isoquercitrin inhibit NF-κB activation in HSV viral replication |
[21] |
Kaempferol | Rhodioila rosea | Crassulaceae | Roots | The influenza strains A/PR/8/34 (H1N1) (ATCC VR-1469) |
Madin-Darby canine kidney (MDCK) cells were obtained | In vitro | Inhibit viral replication by blocking neuraminidases | [22] |
Myricetin | Marcetia taxifolia | Melastomataceae | Aerial parts | HIV-1 (HTLV-IIIB/H9) | MT4 cells | In silico | May Bind to NNRTI pocket of NNRTI resistant HIV-1 | [23] |
Apigein | Gentiana veitchiorum | Gentianaceae | Flower | Foot-and-mouth disease virus (FMDV) | BHK-21 cells | In vitro | Block the internal ribosome entry site (IRES) mediate translational activity | [24][25] |
Quercetin 3-o-β-glucopyranoside | Morus Alba | Moraceae | Leaf | Herpes simplex Virus type 1 | Vero cell line no ATCC CCL-81) | In vitro | Inhibit DNA chair termination | [26] |
Quercetin 3-o-β-(6”-o-galloyl)-glucopyranoside | Morus Alba | Moraceae | Leaf | Herpes simplex Virus type 1 | Vero cell line no ATCC CCL-81) | In vitro | Inhibit DNA chair termination | [26] |
Quercetin-3-o-β-L-rhamnopyranosyl | Acacia albdai | Fabaceae | Leaf | Herpes simplex Virus type 1 | Vero cell line no ATCC CCL-81) | In vitro | Inhibit DNA chain termination | [26] |
Quercetin-3-O-α-L-rhamnopyranoside | Acacia albdai | Fabaceae | Leaf | Herpes simplex Virus type 1 | Vero cell line no ATCC CCL-81) | In vitro | Inhibit DNA chain termination | [26] |
6-o-methoxy Quercetin-7-o-β-D-glucopyranoside | Centaurea glomerata | Asteraceae | Aerial parts | Herpes simplex Virus type 1 | Vero cell line no ATCC CCL-81) | In vitro | Inhibit DNA chain termination | [26] |
4’,6-o-dimethoxy Quercetin-7-o-β-D-glucopyranoside |
Centaurea glomerata | Asteraceae | Areal Parts | Herpes simplex Virus type 1 | Vero cell line no ATCC CCL-81) | In vitro | Inhibit DNA chain termination | [26] |
Quercetin-3-β-o-D-glucoside | Allium cepa | Amaryllidaceae | Root | Ebolaviruses (EBOV-Kikwit-GFP, EBOV Makona, SUDV-Boniface, mouse-adapted EBOV) | Vero E6 cells | In vitro | Block glycoprotein mediated step during viral entry | [27][28] |
Isorhamnetin | Ginkgo biloba | Ginkgoaceae | Leaf | Influenza A virus Puerto Rico/8/34 (H1N1) |
Madin Darby Canine Kidney (MDCK) cells | In vitro and In vivo | Inhibit neuraminidase and hemagglutination, suppress ROS generation and ERK phosphorylation | [29][30] |
Luteolin | Elsholtzia rugulosa | Lamiaceae | Whole Plant | Influenza viruses A/PR/8/34(H1N1), A/Jinan/15/90(H3N2) and B/ Jiangsu/10/2003 |
MDCK cells | In vitro | Inhibit the neuraminidase | [31] |
Luteolin | Cynodon dactylon | Poaceae | Whole Plant | Chikungunya virus |
Vero cells | In vitro | Inhibit intracellular viral replication | [32] |
Quercetin | Illicium verum | Schisandraceae | Singapore grouper iridovirus (SGIV) | Grouper spleen (GS) cells | In vitro | Interrupt SGIV binding to host cell by blocking membrane receptor on host cell which | [33] | |
Naringenin | Citrus sinensis | Rutaceae | Fruit | Zika Virus | Human A549 cells | In vitro | Inhibit NS2B-NS3 protease | [34][35] |
Hesperidin | Citrus sinensis (sweet orange) | Rutaceae | Fruit Peel | SARS-CoV-2 virus | In silico | Binds to main protease and angiotensin converting enzyme 2 | [36] | |
Hesperidin | Citrus sinensis | Rutaceae | Fruit Peel | Sindbis virus | BHK-2 | In vitro | Inhibitory activity on viral replication | [37][38] |
Naringenin | Citrus paradisi | Rutaceae | Fruit Peel | Hepatitis C virus (HCV) | Huh7.5.1 human hepatoma cell | In vitro and In vivo | inhibits ApoB lipoprotein reduce secretion of HCV | [39][40] |
Luteolin | Achyrocline satureioides | Asteraceae | Whole Plant | Influenza virus A/Fort Monmouth/1/1947 (H1N1) |
Madin-Darby canine kidney (MDCK) cells and Vero cells | In vitro | Block absorption to the cell surface or receptor binding site leads to the suppress of the expression of coat protein I | [41][42] |
Naringenin | Citrus paradisi | Rutaceae | Fruit Peel | Dengue virus (DENV) | Huh7.5 cells | In vitro | Act as antiviral cytokine during DENV replication | [40][43] |