FEBS Letters
Volume 583, Issue 22 , Pages 3569-3576, 19 November 2009

Binding of epigallocatechin-3-gallate to transthyretin modulates its amyloidogenicity

Edited by Jesus Avila

  • Nelson Ferreira

      Affiliations

    • Grupo de Neurobiologia Molecular, IBMC – Instituto de Biologia Molecular e Celular, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal
    • Departamento de Biologia Molecular, ICBAS – Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Largo Prof. Abel Salazar, 2, 4099-003 Porto, Portugal
  • ,
  • Isabel Cardoso

      Affiliations

    • Grupo de Neurobiologia Molecular, IBMC – Instituto de Biologia Molecular e Celular, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal
  • ,
  • Maria Rosário Domingues

      Affiliations

    • Centro de Espectrometria de Massa, Departamento de Química, Universidade de Aveiro, Campus Santiago, 3810-193 Aveiro, Portugal
  • ,
  • Rui Vitorino

      Affiliations

    • Centro de Espectrometria de Massa, Departamento de Química, Universidade de Aveiro, Campus Santiago, 3810-193 Aveiro, Portugal
  • ,
  • Margarida Bastos

      Affiliations

    • Centro de Investigação em Química (UP) – CIQ (UP), Departamento de Química, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 687, P-4169-007 Porto, Portugal
  • ,
  • Guangyue Bai

      Affiliations

    • Centro de Investigação em Química (UP) – CIQ (UP), Departamento de Química, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 687, P-4169-007 Porto, Portugal
  • ,
  • Maria João Saraiva

      Affiliations

    • Grupo de Neurobiologia Molecular, IBMC – Instituto de Biologia Molecular e Celular, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal
    • Departamento de Biologia Molecular, ICBAS – Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Largo Prof. Abel Salazar, 2, 4099-003 Porto, Portugal
  • ,
  • Maria Rosário Almeida

      Affiliations

    • Grupo de Neurobiologia Molecular, IBMC – Instituto de Biologia Molecular e Celular, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal
    • Departamento de Biologia Molecular, ICBAS – Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Largo Prof. Abel Salazar, 2, 4099-003 Porto, Portugal
    • Corresponding Author InformationCorresponding author. Address: Neurobiologia Molecular, IBMC – Instituto de Biologia Molecular, Rua do Campo Alegre 823, 4150-185 Porto, Portugal. Fax: +351 226099157.

Received 11 September 2009; received in revised form 13 October 2009; accepted 19 October 2009. published online 26 October 2009.

Abstract 

More than 100 transthyretin (TTR) variants are associated with hereditary amyloidosis. Approaches for TTR amyloidosis that interfere with any step of the cascade of events leading to fibril formation have therapeutic potential. In this study we tested (−)-epigallocatechin-3-gallate (EGCG), the most abundant catechin of green tea, as an inhibitor of TTR amyloid formation. We demonstrate that EGCG binds to TTR “in vitro” and “ex vivo” and that EGCG inhibits TTR aggregation “in vitro” and in a cell culture system. These findings together with the low toxicity of the compound raise the possibility of using EGCG in a therapeutic approach for familial amyloidotic polyneuropathy, the most frequent form of hereditary TTR amyloidosis.

Structured summary

MINT-7294529: TTR (uniprotkb:P02766) and TTR (uniprotkb:P02766) bind (MI:0407) by comigration in non-denaturing gel electrophoresis (MI:0404)

Abbreviations: TTR, transthyretin, T4, thyroxine, EGCG, (−)-Epigallocatechin-3-gallate, FAP, familial amyloidotic polyneuropathy

Keywords: Transthyretin, (−)-Epigallocatechin-3-gallate, Amyloid, Aggregation

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PII: S0014-5793(09)00850-3

doi:10.1016/j.febslet.2009.10.062

FEBS Letters
Volume 583, Issue 22 , Pages 3569-3576, 19 November 2009