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Scand J Immunol. 2012 Dec;76(6):567-72. doi: 10.1111/j.1365-3083.2012.02774.x.

Rachycentron canadum (cobia) lectin promoted mitogenic response in mice BALB/c splenocytes.

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  • 1Departamento de Bioquímica, Laboratório de Glicoproteínas da Universidade Federal de Pernambuco-UFPE, Recife, Brazil.


The mitogenic lectins are invaluable tools to study the biochemical changes associated with lymphocyte activation and proliferation of various immune cells. Rachycentron canadum lectin (RcaL) was detected and purified from serum of cobia fish. The aim of this study was to evaluate the proliferative response and cytokine production in splenocytes of mice in vitro stimulated with RcaL lectin; Canavalia ensiformis lectin (Con A) was used as positive control. A high proliferation index was induced by RcaL in relation to control cells. Furthermore, RcaL induced higher IL-2 and IL-6 production in relation to control. The cell viability was 90% in splenocytes treated with RcaL lectin, but RcaL promoted significant late apoptosis after 24 and 48 h in relation to control. RcaL induced proliferative responses suggesting that this lectin can be used as a mitogenic agent in immunostimulatory assays.

© 2012 The Authors. Scandinavian Journal of Immunology © 2012 Blackwell Publishing Ltd.

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