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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Influence of post-starvation extraction time and prey-specific diet in Tityus serrulatus scorpion venom composition and hyaluronidase activity

Texto completo
Autor(es):
Pucca, Manuela Berto [1] ; Amorim, Fernanda Gobbi [1] ; Cerni, Felipe Atigusto [1] ; Figueiredo Bordon, Karla de Castro [1] ; Cardoso, Iara Aime [1] ; Pino Anjolette, Fernando Antonio [1] ; Arantes, Eliane Candiani [1]
Número total de Autores: 7
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Sch Pharmaceut Sci Ribeirao Preto, Dept Chem & Phys, BR-14040903 Ribeirao Preto, SP - Brazil
Número total de Afiliações: 1
Tipo de documento: Artigo Científico
Fonte: Toxicon; v. 90, p. 326-336, NOV 2014.
Citações Web of Science: 21
Resumo

The role of diet in venom composition has been a topic of intense research interest. This work presents evidence that the variation in the venom composition from the scorpion Tityus serrulatus (Ts) is closely associated with post-starvation extraction time and prey-specific diet. The scorpions were fed with cockroach, cricket, peanut beetle or giant Tenebrio. The venoms demonstrated a pronounced difference in the total protein and toxins composition, which was evaluated by electrophoresis, reversed-phase chromatography, densitometry, hyaluronidase activity and N-terminal sequencing. Indeed, many toxins and peptides, such as Ts1, Ts2, Ts4, Ts5, Ts6, Ts15, Ts19 frag. II, hypotensins 1 and 3, PAPE peptide and peptide 9797 (first described in Ts venom), were all identified in different proportions in the analyzed Ts venoms. This study is pioneer on assessing the influence of the starvation time and the prey diet on hyaluronidase activity as well as to describe a modification of Tricine-gel-electrophoresis to evaluate this enzyme activity. Altogether, this study reveal a large contribution of the extraction time and diet on Ts venom variability as well as present a background to recommend the cockroach diet to obtain higher protein content and the cricket diet to obtain higher hyaluronidase specific activity. (C) 2014 Elsevier Ltd. All rights reserved. (AU)

Processo FAPESP: 11/12317-3 - Clonagem e expressão heteróloga da hialuronidase e/ou novas toxinas obtidas a partir do transcriptoma da glândula da peçonha de Tityus serrulatus
Beneficiário:Fernanda Gobbi Amorim
Linha de fomento: Bolsas no Brasil - Doutorado
Processo FAPESP: 12/12954-6 - Estudo das toxinas Ts6 e Ts15 do escorpião Tityus serrulatus como potenciais drogas terapêuticas para o tratamento de doenças autoimunes
Beneficiário:Manuela Berto Pucca
Linha de fomento: Bolsas no Brasil - Pós-Doutorado
Processo FAPESP: 12/13590-8 - Isolamento, caracterização molecular e funcional de uma nova toxina presente na peçonha do escorpião Tityus serrulatus
Beneficiário:Felipe Augusto Cerni
Linha de fomento: Bolsas no Brasil - Doutorado