Investigation of thermostable metalloproteins in Perna perna mussels from differentially contaminated areas in Southeastern Brazil by bioanalytical techniques.

Lavradas, Raquel Teixeira; Rocha, Rafael Christian Chávez; Saint' Pierre, Tatiana Dillenburg; Godoy, José Marcus; Hauser-Davis, Rachel Ann

Lavradas, Raquel Teixeira; Rocha, Rafael Christian Chávez; Saint' Pierre, Tatiana Dillenburg; Godoy, José Marcus; Hauser-Davis, Rachel Ann.

Afiliação

Lavradas RT; Pontifícia Universidade Católica-Rio de Janeiro (PUC-Rio), Departamento de Química, Rua Marquês de São Vicente, 225, Gávea, Rio de Janeiro, RJ CEP: 22453-900, Brazil.
Rocha RC; Pontifícia Universidade Católica-Rio de Janeiro (PUC-Rio), Departamento de Química, Rua Marquês de São Vicente, 225, Gávea, Rio de Janeiro, RJ CEP: 22453-900, Brazil.
Saint' Pierre TD; Pontifícia Universidade Católica-Rio de Janeiro (PUC-Rio), Departamento de Química, Rua Marquês de São Vicente, 225, Gávea, Rio de Janeiro, RJ CEP: 22453-900, Brazil.
Godoy JM; Pontifícia Universidade Católica-Rio de Janeiro (PUC-Rio), Departamento de Química, Rua Marquês de São Vicente, 225, Gávea, Rio de Janeiro, RJ CEP: 22453-900, Brazil.
Hauser-Davis RA; Pontifícia Universidade Católica-Rio de Janeiro (PUC-Rio), Departamento de Química, Rua Marquês de São Vicente, 225, Gávea, Rio de Janeiro, RJ CEP: 22453-900, Brazil. Electronic address: rachel.hauser.davis@gmail.com.

J Trace Elem Med Biol ; 34: 70-8, 2016 Mar.

Article em En | MEDLINE | ID: mdl-26854248

RESUMO

Metallomic studies regarding environmental contamination by metals are of value in elucidating metal uptake, trafficking, accumulation and metabolism in biological systems. Many proven bioindicator species, such as bivalves, have not yet, however, been well-characterized regarding their metalloprotein expression in response to environmental contaminants. In this context, the aim of the present study was to investigate metalloprotein expressions in the thermostable protein fraction of muscle tissue and digestive glands from mussels (Perna perna) from three differentially metal-contaminated sites in Southeastern Brazil in comparison with a reference site. The thermostable protein fractions were analyzed by SDS-PAGE and SEC-HPLC-ICP-MS. Metal content was also determined in both the crude and the purified extracts. Several inter-organ differences were observed, which is to be expected, while inter-site differences regarding thermostable protein content were also verified, indicating accumulation of these elements in muscle tissue and digestive glands and disruption of homeostasis of essential elements, with detoxification attempts by metal-bound proteins, since all metalloproteins present in both matrices eluted bound to at least one non-essential metal. These results are also noteworthy with regard to the adopted reference site, that also seems to be contaminated by toxic metals.

Assuntos

Monitoramento Ambiental/métodos; Metaloproteínas/análise; Perna (Organismo)/metabolismo; Poluentes Químicos da Água/análise; Animais; Brasil

Palavras-chave

HPLC-SEC-ICP-MS; Metalloproteins; Metals; Mussels; SDS-PAGE

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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poluentes Químicos da Água / Monitoramento Ambiental / Perna (Organismo) / Metaloproteínas Limite: Animals País/Região como assunto: America do sul / Brasil Idioma: En Revista: J Trace Elem Med Biol Assunto da revista: METABOLISMO / SAUDE AMBIENTAL Ano de publicação: 2016 Tipo de documento: Article País de afiliação: Brasil País de publicação: Alemanha

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