Human CD8 T-cell activation in acute and chronic chikungunya infection.
Cinthia Nóbrega de Sousa DiasBruna Macêdo GoisViviane Silva LimaIsabel Cristina Guerra-GomesJosélio Maria Galvão AraújoJuliana de Assis Silva GomesDemétrius Antônio Machado AraújoIsac Almeida MedeirosFátima de Lourdes Assunção Araújo de AzevedoRobson Cavalcanti VerasDaniele Idalino JanebroIan Porto Gurgel do AmaralTatjana de Souza Lima KeesenPublished in: Immunology (2018)
There is a need for more detailed elucidation of T-cell immunity in chikungunya infection. CD8 T cells are one of main actors against viruses. Here, we analysed CD8+ T lymphocytes from patients in the acute and chronic phases of chikungunya disease (CHIKD). Our results demonstrate that CD8+ T cells expressed higher ex vivo granzyme B, perforin and CD107A expression in patients in the acute phase of CHIKD compared with healthy individuals and higher ex vivo expression of CD69, interleukin-17A, interleukin-10 and CD95 ligand, and co-expression of CD95/CD95 ligand. These results elucidate the importance of these lymphocytes, demonstrating immune mechanisms mediated in human chikungunya infection.
Keyphrases
- end stage renal disease
- zika virus
- poor prognosis
- endothelial cells
- ejection fraction
- chronic kidney disease
- newly diagnosed
- aedes aegypti
- prognostic factors
- peritoneal dialysis
- dengue virus
- drug induced
- nk cells
- respiratory failure
- intensive care unit
- hepatitis b virus
- induced pluripotent stem cells
- long non coding rna
- peripheral blood
- aortic dissection
- pluripotent stem cells