Trans-sialidase Protein as a Potential Serological Marker for African Trypanosomiasis

Teixeira, Ana Filipa, Pereira, João Gomes, Pestana-Ascensão, Sónia, MS Silva

Research output: Contribution to journalArticlepeer-review


Trypanosoma brucei is the etiological agent of African trypanosomiasis responsible for human and animal infections. T. brucei is transmitted by infected tsetse flies. There is no vaccine for the disease and drugs available for treatment are inefficient and high toxicity. In this context, it is a priority to find antigenic targets suitable for the development of new diagnostic tools, drugs and vaccines. In this work, we report that mice infected with T. b. brucei produce antibodies against trans-sialidase recombinant protein (TS). In addition, we also demonstrate that bloodstream T. b. brucei express messenger RNA related to the TS gene. Collectively, our data strongly suggest that bloodstream forms of T. b. brucei also express the TS gene, that to date was described only in the procyclic forms of the T. b. brucei. In conclusion, these results highlight the importance of TS protein as a possible antigen target during infection caused by T. b. brucei.
Original languageEnglish
Pages (from-to)50-57
Number of pages8
JournalProtein Journal
VolumeVol. 38
Issue numbern.º 1
Publication statusPublished - 15 Feb 2019


  • African trypanosomiasis
  • Antigenic targets
  • Serological markers
  • Trans-sialidase
  • Trypanosoma brucei


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