Università della Svizzera italiana

Activin-A co-opts IRF4 and AhR signaling to induce human regulatory T cells that restrain asthmatic responses

Tousa, Sofia ; Semitekolou, Maria ; Morianos, Ioannis ; Banos, Aggelos ; Trochoutsou, Aikaterini I. ; Brodie, Tess M. ; Poulos, Nikolaos ; Samitas, Konstantinos ; Kapasa, Maria ; Konstantopoulos, Dimitris ; Paraskevopoulos, Giannis ; Gaga, Mina ; Hawrylowicz, Catherine M. ; Sallusto, Federica ; Xanthou, Georgina

In: Proceedings of the national academy of sciences of the United States of America, 2017, vol. 114, no. 14, p. E2891-E2900

Type 1 regulatory T (Tr1) cells play a pivotal role in restraining human T-cell responses toward environmental allergens and protecting against allergic diseases. Still, the precise molecular cues that underlie their transcriptional and functional specification remain elusive. Here, we show that the cytokine activin-A instructs the generation of CD4+ T cells that express the...

Università della Svizzera italiana

Proteome-wide analysis of HIV-specific naive and memory CD4+ T cells in unexposed blood donors

Campion, Suzanne L. ; Brodie, Tess M. ; Fischer, William ; Korber, Bette T. ; Rossetti, Astrea ; Goonetilleke, Nilu ; McMichael, Andrew J. ; Sallusto, Federica

In: Journal of experimental medicine, 2014, vol. 211, no. 7, p. 1273-1280

The preexisting HIV-1–specific T cell repertoire must influence both the immunodominance of T cells after infection and immunogenicity of vaccines. We directly compared two methods for measuring the preexisting CD4+ T cell repertoire in healthy HIV-1–negative volunteers, the HLA-peptide tetramer enrichment and T cell library technique, and show high concordance (r = 0.989). Using the...