Evaluation of the Inhibitory Potential of Casuarictin, an Ellagitannin Isolated from White Mangrove (Laguncularia racemosa) Leaves, on Snake Venom Secretory Phospholipase A2

Autor(es)

Bittencourt Rodrigues, Caroline Fabri ^{[1, 2]} ; Pena Ferreira, Marcelo Jose ^[3] ; Belchor, Mariana Novo ^[2] ; Costa, Caroline R. C. ^[2] ; Novaes, Danielle P. ^[2] ; dos Santos Junior, Adeilso Bispo ^[2] ; Tamayose, Cinthia I. ^[3] ; Terashima Pinho, Marcus Vinicius ^[2] ; de Oliveira, Marcos Antonio ^[4] ; Toyama, Marcos Hikari ^[2]

Afiliação do(s) autor(es)

^[1] Inst Butantan, Lab Herpetol, BR-05503900 Sao Paulo, SP - Brazil

^[2] UNESP, Inst Biociencias, Lab Bioquim & Biol Mol Peptideos BIOMOLPEP, Campus Litoral Paulista, BR-11330900 Sao Vicente, SP - Brazil

^[3] Univ Sao Paulo, Inst Biociencias, Dept Bot, BR-05508090 Sao Paulo - Brazil

^[4] UNESP, Inst Biociencias, Lab Biol Mol Estrutural LABIMES, Campus Litoral Paulista, BR-11330900 Sao Vicente, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: MARINE DRUGS; v. 17, n. 7 JUL 2019.
• Citações Web of Science: 0

Resumo

Ellagitannins constitute the largest group of hydrolyzable tannins of plants, and, from this group, casuarictin (Casu) was identified in some plant species. However, to our knowledge, no investigation of secretory phospholipase A2 (sPLA2) inhibition by Casu has been performed yet. Casuarictin was isolated by chromatography n-butanol (n-BuOH) partition of Laguncularia racemosa leaves. The pharmacological and biological effects of Casu were evaluated on isolated sPLA2 from the rattlesnake (Crotalus durissus terrificus) and using a plant bacterial strain. The compound was able to form a protein complex consisting of a stable sPLA2 + Casu complex. Analyses carried out with matrix-assisted laser desorption ionization-time-of-flight mass spectrometry (MALDI-TOF) revealed that the molecular mass of sPLA2 increased from 14,425.62 to 15,362.74 Da. The enzymatic activity of the sPLA2 + Casu complex was significantly lower than that of native sPLA2. Besides, molecular interactions of Casu with sPLA2 were able to virtually abolish the native edematogenic effect as well as myonecrosis induced by the protein when injected 10 min after sPLA2. Therefore, Casu may be considered a potential anti-inflammatory that can be used to treat edema and myonecrosis induced by serine-secreting phospholipase A2. In addition, the compound also showed great antimicrobial potential. (AU)

• Processo FAPESP: 17/20291-0 - Caracterização da atividade pró-inflamatória de uma nova serino protease (cdtsp-2) purificada do veneno total de Crotalus durissus terrificus
• Beneficiário: Marcos Hikari Toyama
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 14/20932-8 - ESTUDO FITOQUÍMICO, QUIMIOSSISTEMÁTICO E ATIVIDADES BIOLÓGICAS DE ESPÉCIES DE Moquiniastrum E Richterago
• Beneficiário: Cinthia Indy Tamayose
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 14/21593-2 - Baccharis L. (Asteraceae) e fungos endofíticos associados: metabólitos secundários e atividades biológicas
• Beneficiário: Marcelo José Pena Ferreira
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 13/10938-6 - Investigação de polissacarídeos sulfatados de baixo peso molecular de macroalgas marinhas sobre a estrutura e função fosfolipase A2 secretória de Crotalus durissus terrificus
• Beneficiário: Marcos Hikari Toyama
• Modalidade de apoio: Auxílio à Pesquisa - Regular