Sulfated Small Molecules Targeting EBV in Burkitt Lymphoma: From In Silico Screening to the Evidence of In Vitro Effect on Viral Episomal DNA

Epstein–Barr virus (EBV) infects more than 90% of the world population. Following primary infection, Epstein–Barr virus persists in an asymptomatic latent state. Occasionally, it may switch to lytic infection. Latent EBV infection has been associated with several diseases, such as Burkitt lymphoma (...

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Veröffentlicht in:Chemical biology & drug design 2013-05, Vol.81 (5), p.631-644
Hauptverfasser: Lima, Raquel T., Seca, Hugo, Palmeira, Andreia, Fernandes, Miguel X., Castro, Felipe, Correia-da-Silva, Marta, Nascimento, Maria S. J., Sousa, Emília, Pinto, Madalena, Vasconcelos, M. Helena
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container_issue 5
container_start_page 631
container_title Chemical biology & drug design
container_volume 81
creator Lima, Raquel T.
Seca, Hugo
Palmeira, Andreia
Fernandes, Miguel X.
Castro, Felipe
Correia-da-Silva, Marta
Nascimento, Maria S. J.
Sousa, Emília
Pinto, Madalena
Vasconcelos, M. Helena
description Epstein–Barr virus (EBV) infects more than 90% of the world population. Following primary infection, Epstein–Barr virus persists in an asymptomatic latent state. Occasionally, it may switch to lytic infection. Latent EBV infection has been associated with several diseases, such as Burkitt lymphoma (BL). To date, there are no available drugs to target latent EBV, and the existing broad‐spectrum antiviral drugs are mainly active against lytic viral infection. Thus, using computational molecular docking, a virtual screen of a library of small molecules, including xanthones and flavonoids (described with potential for antiviral activity against EBV), was carried out targeting EBV proteins. The more interesting molecules were selected for further computational analysis, and sub‐sequently, the compounds were tested in the Raji (BL) cell line, to evaluate their activity against latent EBV. This work identified three novel sulfated small molecules capable of decreasing EBV levels in a BL. Therefore, the in silico screening presents a good approach for the development of new anti‐EBV agents. The compounds: did not greatly affect cellular viability; decresed EBV DNA load; and reduced LMP1 protein expression.
doi_str_mv 10.1111/cbdd.12109
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Thus, using computational molecular docking, a virtual screen of a library of small molecules, including xanthones and flavonoids (described with potential for antiviral activity against EBV), was carried out targeting EBV proteins. The more interesting molecules were selected for further computational analysis, and sub‐sequently, the compounds were tested in the Raji (BL) cell line, to evaluate their activity against latent EBV. This work identified three novel sulfated small molecules capable of decreasing EBV levels in a BL. Therefore, the in silico screening presents a good approach for the development of new anti‐EBV agents. 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subjects Antineoplastic Agents - chemical synthesis
Antineoplastic Agents - chemistry
Antineoplastic Agents - pharmacology
Antiviral Agents - chemical synthesis
Antiviral Agents - chemistry
Antiviral Agents - pharmacology
antivirals
Burkitt lymphoma
Burkitt Lymphoma - drug therapy
Burkitt Lymphoma - virology
Cell Line, Tumor
DNA, Neoplasm - antagonists & inhibitors
DNA, Neoplasm - chemistry
DNA, Neoplasm - metabolism
DNA, Viral - antagonists & inhibitors
DNA, Viral - chemistry
DNA, Viral - metabolism
Drug Delivery Systems
Drug Discovery
Drug Screening Assays, Antitumor
Epstein-Barr virus
Flavonoids - chemical synthesis
Flavonoids - chemistry
Flavonoids - pharmacology
Herpesvirus 4, Human - physiology
Humans
Plasmids - antagonists & inhibitors
Plasmids - chemistry
Plasmids - metabolism
sulfated small molecules
virtual screening
Virus Latency - drug effects
Xanthones - chemical synthesis
Xanthones - chemistry
Xanthones - pharmacology
title Sulfated Small Molecules Targeting EBV in Burkitt Lymphoma: From In Silico Screening to the Evidence of In Vitro Effect on Viral Episomal DNA
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