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https://hdl.handle.net/1822/58480
Título: | Reactivation of latent HIV-1 in vitro using an ethanolic extract from Euphorbia umbellata (Euphorbiaceae) latex |
Autor(es): | Valadão, Ana Luiza Chaves Pezzuto, Paula Silva, Viviane A Oliveira Gonçalves, Barbara Simonson Rossi, Átila Duque da Cunha, Rodrigo Delvecchio Siani, Antonio Carlos Tostes, João Batista de Freitas Trovó, Marcelo Damasco, Paulo Gonçalves, Gabriel Reis, R. M. Aguiar, Renato Santana Bento, Cleonice Alves de Melo Tanuri, Amilcar |
Data: | 2018 |
Editora: | Public Library of Science (PLOS) |
Revista: | PLoS ONE |
Citação: | Valadão, A. L. C., Pezzuto, P., Silva, V. A. O., et. al. (2018). Reactivation of latent HIV-1 in vitro using an ethanolic extract from Euphorbia umbellata (Euphorbiaceae) latex. PloS one, 13(11), e0207664 |
Resumo(s): | Euphorbia umbellata (E. umbellata) belongs to Euphorbiaceae family, popularly known as Janauba, and its latex contains a combination of phorbol esters with biological activities described to different cellular protein kinase C (PKC) isoforms. Here, we identified deoxi-phorbol esters present in E. umbellata latex alcoholic extract that are able to increase HIV transcription and reactivate virus from latency models. This activity is probably mediated by NF-kB activation followed by nuclear translocation and binding to the HIV LTR promoter. In addition, E. umbellata latex extract induced the production of pro inflammatory cytokines in vitro in human PBMC cultures. This latex extract also activates latent virus in human PBMCs isolated from HIV positive patients as well as latent SIV in non-human primate primary CD4+ T lymphocytes. Together, these results indicate that the phorbol esters present in E. umbellata latex are promising candidate compounds for future clinical trials for shock and kill therapies to promote HIV cure and eradication. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/58480 |
DOI: | 10.1371/journal.pone.0207664 |
ISSN: | 1932-6203 |
Versão da editora: | https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0207664 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | ICVS - Artigos em revistas internacionais / Papers in international journals |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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valadao.pdf | 2,37 MB | Adobe PDF | Ver/Abrir |