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Université de Fribourg

Innate immune cells and their contribution to T-cell-based immunotherapy

Ginefra, Pierpaolo ; Lorusso, Girieca ; Vannini, Nicola

In: International Journal of Molecular Sciences, 2020, vol. 21, no. 12, p. 4441

In recent years, immunotherapy has become the most promising therapy for a variety of cancer types. The development of immune checkpoint blockade (ICB) therapies, the adoptive transfer of tumor-specific T cells (adoptive cell therapy (ACT)) or the generation of T cells engineered with chimeric antigen receptors (CAR) have been successfully applied to elicit durable immunological responses in...

Università della Svizzera italiana

Phenotype and specificity of T cells in primary human cytomegalovirus infection during pregnancy : IL-7Rpos long-term memory phenotype is associated with protection from vertical transmission

Mele, Federico ; Fornara, Chiara ; Jarrossay, David ; Furione, Milena ; Arossa, Alessia ; Spinillo, Arsenio ; Lanzavecchia, Antonio ; Gerna, Giuseppe ; Sallusto, Federica ; Lilleri, Daniele

In: Plos one, 2017, vol. 12, no. 11, p. e0187731

Congenital human cytomegalovirus (HCMV) infection is the major cause of birth defects and a precise definition of the HCMV-specific T-cell response in primary infection may help define reliable correlates of immune protection during pregnancy. In this study, a high throughput method was used to define the frequency of CD4+ and CD8+ T cells specific for four HCMV proteins in the naïve...

Università della Svizzera italiana

Dissecting human antibody responses: useful, basic and surprising findings

Lanzavecchia, Antonio

In: EMBO molecular medicine, 2018, vol. 10, p. e8879

Human memory B cells and plasma cells represent a rich source of antibodies that have been selected in response to human pathogens. In the last decade, different methods have been developed to interrogate the human memory repertoire and isolate monoclonal antibodies. I will discuss how a target‐agnostic approach based on high‐throughput screening of antibodies produced by cultured B cells...

Università della Svizzera italiana

Antigen-specific Th17 cells are primed by distinct and complementary dendritic cell subsets in oropharyngeal candidiasis

Trautwein-Weidner, Kerstin ; Gladiator, André ; Kirchner, Florian R. ; Becattini, Simone ; Rülicke, Thomas ; Sallusto, Federica ; LeibundGut-Landmann, Salomé

In: PLoS pathogens, 2015, vol. 11, no. 10, p. e1005164

Candida spp. can cause severe and chronic mucocutaneous and systemic infections in immunocompromised individuals. Protection from mucocutaneous candidiasis depends on T helper cells, in particular those secreting IL-17. The events regulating T cell activation and differentiation toward effector fates in response to fungal invasion in different tissues are poorly understood. Here we generated...

Università della Svizzera italiana

ERK phosphorylation and miR-181a expression modulate activation of human memory TH17 cells

Mele, Federico ; Basso, Camilla ; Leoni, Cristina ; Aschenbrenner, Dominik ; Becattini, Simone ; Latorre, Daniela ; Lanzavecchia, Antonio ; Sallusto, Federica ; Monticelli, Silvia

In: Nature communications, 2015, vol. 6, p. 6431

T helper (TH) cell polarization during priming is modulated by a number of signals, but whether polarization to a given phenotype also influences recall responses of memory TH cells is relatively unknown. Here we show that miR-181a is selectively induced in both human and mouse naive T cells differentiating into the TH17, but not TH1 or TH2 subset. In human memory TH17 cells, miR-181a...

Università della Svizzera italiana

miR-146a and NF-κB1 regulate mast cell survival and T lymphocyte differentiation

Rusca, Nicole ; Dehò, Lorenzo ; Montagner, Sara ; Zielinski, Christina E. ; Sica, Antonio ; Sallusto, Federica ; Monticelli, Silvia

In: Molecular and cellular biology, 2012, vol. 32, no. 21, p. 4432-4444

The transcription factor NF-κB regulates the expression of a broad number of genes central to immune and inflammatory responses. We identified a new molecular network that comprises specifically the NF-κB family member NF-κB1 (p50) and miR-146a, and we show that in mast cells it contributes to the regulation of cell homeostasis and survival, while in T lymphocytes it modulates T cell...

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...

Università della Svizzera italiana

CCR6 is expressed on an IL-10-producing, autoreactive memory T cell population with context-dependent regulatory function

Rivino, Laura ; Gruarin, Paola ; Häringer, Barbara ; Steinfelder, Svenja ; Lozza, Laura ; Steckel, Bodo ; Weick, Anja ; Sugliano, Elisa ; Jarrossay, David ; Kühl, Anja A. ; Loddenkemper, Christoph ; Abrignani, Sergio ; Sallusto, Federica ; Lanzavecchia, Antonio ; Geginat, Jens

In: Journal of experimental medicine, 2010, vol. 207, no. 3, p. 565-577

Interleukin (IL)-10 produced by regulatory T cell subsets is important for the prevention of autoimmunity and immunopathology, but little is known about the phenotype and function of IL-10–producing memory T cells. Human CD4+CCR6+ memory T cells contained comparable numbers of IL-17– and IL-10–producing cells, and CCR6 was induced under both Th17-promoting conditions and upon tolerogenic...