Schistosomicidal activity of kaurane, labdane and clerodane-type diterpenes obtained by fungal transformation
| Autor: | Sérgio Ricardo Ambrósio, Thiago S. Porto, Renato L. T. Parreira, Lizandra Guidi Magalhães, Larissa Costa Oliveira, Lucas Antonio de Lima Paula, Arthur Henrique Colmanette Junior, Henrique Pereira Ramos, Glaucia Hollaender Braun, Rodrigo Cassio Sola Veneziani, Niege Araçari Jacometti Cardoso Furtado, Mario Ferreira Conceição Santos, Jairo Kenupp Bastos |
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| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
FABACEAE Antiparasitic medicine.drug_class Copaifera Bioengineering Schistosomiasis 01 natural sciences Applied Microbiology and Biotechnology Biochemistry Aspergillus fumigatus Labdane 03 medical and health sciences chemistry.chemical_compound 010608 biotechnology otorhinolaryngologic diseases medicine Cunninghamella echinulata 030304 developmental biology 0303 health sciences biology Traditional medicine biology.organism_classification medicine.disease chemistry Schistosoma mansoni Diterpene |
| Zdroj: | Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP |
| Popis: | Schistosomiasis continues to be a huge challenge for researchers, pharmaceutical companies, and governments in developing countries. Diterpene compounds are good source for the development of novel potential leading compounds to treat schistosomiasis. We are reporting herein the schistosomicidal activity of ent-kaurenoic acid, ent-copalic acid, ent-hardwickiic acid, isolated from oleoresins of Copaifera spp, and of their derivatives obtained by fungal transformation with strains of Aspergillus fumigatus, A. terreus, A. phoenicis and A. ochraceus, and of Cunninghamella echinulata e C. elegans. The in vitro antiparasitical assays were performed using adult worm pairs of Schistosoma mansoni for the evaluation of the worm pairing, egg production, and eggs development. Ten kaurane, labdane and clerodane-type diterpenes were obtained by fungal transformation and 7α-acetoxy-ent-kaur-16-en-19-oic acid and ent-hardwickiic acid were the most active ones by causing mortality of 100 % of the parasites within 24 h (concentrations of 100.0 and 200.0 μM) and displaying respective IC50 values for 24, 48 and 72 h of 56.7, 37.6 and 29.2 μM and 29.6, 30.8 and 25.7 μM. Additionally, 7α-acetoxy-ent-kaur-16-en-19-oic acid and ent-hardwickiic acid highly reduced the number of laid eggs at 6.25 and 12.5 μM, respectively. These diterpenes should be further investigated as potential candidates for antiparasitic drug discovery. |
| Databáze: | OpenAIRE |
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