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Università della Svizzera italiana

The impact of ambient air pollution on hospital admissions

Filippini, Massimo ; Masiero, Giuliano ; Steinbach, Sandro

In: European Journal of Health Economics, 2019, vol. 20, no. 6, p. 919-931

Ambient air pollution is the environmental factor with the most significant impact on human health. Several epidemiological studies provide evidence for an association between ambient air pollution and human health. However, the recent economic literature has challenged the identification strategy used in these studies. This paper contributes to the ongoing discussion by investigating the...

Università della Svizzera italiana

Epithelial-mesenchymal transition in cancer metastasis through the lymphatic syste

Karlsson, Mikael C. ; Gonzalez, Santiago F. ; Welin, Josefin ; Fuxe, Jonas

In: Molecular oncology, 2017, vol. 11, p. 781–791

It was already in the 18th century when the French surgeon LeDran first noted that breast cancer patients with spread of tumor cells to their axillary lymph nodes had a drastically worse prognosis than patients without spread (LeDran et al., ). Since then, metastatic spread of cancer cells to regional lymph nodes has been established as the most important prognostic factor in many types of...

Università della Svizzera italiana

CXCL12α/SDF‐1 from perisynaptic Schwann cells promotes regeneration of injured motor axon terminals

Negro, Samuele ; Lessi, Francesca ; Duregotti, Elisa ; Aretini, Paolo ; La Ferla, Marco ; Franceschi, Sara ; Menicagli, Marco ; Bergamin, Elisanna ; Egle, Radice ; Megighian, Aram ; Pirazzini, Marco ; Mazzanti, Chiara M. ; Rigoni, Michela ; Montecucco, Cesare

In: EMBO molecular medicine, 2017, vol. 9, no. 8, p. 1000–1010

The neuromuscular junction has retained through evolution the capacity to regenerate after damage, but little is known on the inter‐cellular signals involved in its functional recovery from trauma, autoimmune attacks, or neurotoxins. We report here that CXCL12α, also abbreviated as stromal‐derived factor‐1 (SDF‐1), is produced specifically by perisynaptic Schwann cells following ...

Università della Svizzera italiana

T follicular helper cells promote a beneficial gut ecosystem for host metabolic homeostasis by sensing microbiota-derived extracellular ATP

Perruzza, Lisa ; Gargari, Giorgio ; Proietti, Michele ; Fosso, Bruno ; D'Erchia, Anna Maria ; Faliti, Caterina Elisa ; Rezzonico-Jost, Tanja ; Scribano, Daniela ; Mauri, Laura ; Colombo, Diego ; Pellegrini, Giovanni ; Moregola, Annalisa ; Mooser, Catherine ; Pesole, Graziano ; Nicoletti, Mauro ; Norata, Giuseppe Danilo ; Geuking, Markus B. ; McCoy, Kathy D. ; Guglielmetti, Simone ; Grassi, Fabio

In: Cell reports, 2017, vol. 18, no. 11, p. 2566-2575

The ATP-gated ionotropic P2X7 receptor regulates T follicular helper (Tfh) cell abundance in the Peyer’s patches (PPs) of the small intestine; deletion of P2rx7, encoding for P2X7, in Tfh cells results in enhanced IgA secretion and binding to commensal bacteria. Here, we show that Tfh cell activity is important for generating a diverse bacterial community in the gut and that sensing of...

Università della Svizzera italiana

A useful, delightful, and good reading : how Maria and Antonia Ponti conceived a library for women

Zonca, Elisabetta

In: Collections : A journal for museum and archives professionals, 2018, vol. 14, no. 3, p. 299–314

In the second half of 19th century, newborn Italy was invaded by innovative ideas supported by democratic, liberal, and socialist intellectuals who wanted to renew social life, economy, and moral values by spreading their ideas both in politics and in everyday life. Right-wing reaction used the same methods of communication and persuasion: the publication of journals and books and their...

Università della Svizzera italiana

Influenza vaccination induces NK-cell-mediated type-II IFN response that regulates humoral immunity in an IL-6-dependent manner

Farsakoglu, Yagmur ; Palomino-Segura, Miguel ; Latino, Irene ; Zanaga, Silvia ; Chatziandreou, Nikolaos ; Pizzagalli, Diego Ulisse ; Rinaldi, Andrea ; Bolis, Marco ; Sallusto, Federica ; Stein, Jens V. ; Gonzalez, Santiago F.

In: Cell reports, 2019, vol. 26, no. 9, p. 2307-2315.e5

The role of natural killer (NK) cells in the immune response against vaccines is not fully understood. Here, we examine the function of infiltrated NK cells in the initiation of the inflammatory response triggered by inactivated influenza virus vaccine in the draining lymph node (LN). We observed that, following vaccination, NK cells are recruited to the interfollicular and medullary areas of...

Università della Svizzera italiana

Induction of potent neutralizing antibody responses by a designed protein nanoparticle accine for respiratory syncytial virus

Marcandalli, Jessica ; Fiala, Brooke ; Ols, Sebastian ; Perotti, Michela ; de van der Schueren, Willem ; Snijder, Joost ; Hodge, Edgar ; Benhaim, Mark ; Ravichandran, Rashmi ; Carter, Lauren ; Sheffler, Will ; Brunner, Livia ; Lawrenz, Maria ; Dubois, Patrice ; Lanzavecchia, Antonio ; Sallusto, Federica ; Lee, Kelly K. ; Veesler, David ; Correnti, Colin E. ; Stewart, Lance J. ; Baker, David ; Loré, Karin ; Perez, Laurent ; King, Neil P.

In: Cell, 2019, vol. 177, no. 6, p. 1420-1431.e17

Respiratory syncytial virus (RSV) is a worldwide public health concern for which no vaccine is available. Elucidation of the prefusion structure of the RSV F glycoprotein and its identification as the main target of neutralizing antibodies have provided new opportunities for development of an effective vaccine. Here, we describe the structure-based design of a self-assembling protein ...

Università della Svizzera italiana

Shp-2 is critical for ERK and metabolic engagement downstream of IL-15 receptor in NK cells

Niogret, Charlène ; Miah, S. M. Shahjahan ; Rota, Giorgia ; Fonta, Nicolas P. ; Wang, Haiping ; Held, Werner ; Birchmeier, Walter ; Sexl, Veronica ; Yang, Wentian ; Vivier, Eric ; Ho, Ping-Chih ; Brossay, Laurent ; Guarda, Greta

In: Nature communications, 2019, vol. 10, p. 1444

The phosphatase Shp-2 was implicated in NK cell development and functions due to its interaction with NK inhibitory receptors, but its exact role in NK cells is still unclear. Here we show, using mice conditionally deficient for Shp-2 in the NK lineage, that NK cell development and responsiveness are largely unaffected. Instead, we find that Shp-2 serves mainly to enforce NK cell responses to...

Università della Svizzera italiana

Schwann cells ER-associated degradation contributes to myelin maintenance in adult nerves and limits demyelination in CMT1B mice

Volpi, Vera G. ; Ferri, Cinzia ; Fregno, Ilaria ; Del Carro, Ubaldo ; Bianchi, Francesca ; Scapin, Cristina ; Pettinato, Emanuela ; Solda, Tatiana ; Feltri, M. Laura ; Molinari, Maurizio ; Wrabetz, Lawrence ; D’Antonio, Maurizio

In: PLOS genetics, 2019, vol. 15, no. 4, p. e1008069

In the peripheral nervous system (PNS) myelinating Schwann cells synthesize large amounts of myelin protein zero (P0) glycoprotein, an abundant component of peripheral nerve myelin. In humans, mutations in P0 cause the demyelinating Charcot-Marie-Tooth 1B (CMT1B) neuropathy, one of the most diffused genetic disorders of the PNS. We previously showed that several mutations, such as the...

Università della Svizzera italiana

PECAM-1 stabilizes blood-brain barrier integrity and favors paracellular T-Cell diapedesis across the blood-brain barrier during neuroinflammation

Wimmer, Isabella ; Tietz, Silvia ; Nishihara, Hideaki ; Deutsch, Urban ; Sallusto, Federica ; Gosselet, Fabien ; Lyck, Ruth ; Muller, William A. ; Lassmann, Hans ; Engelhardt, Britta

In: Frontiers in immunology, 2019, vol. 10, p. 711

Breakdown of the blood-brain barrier (BBB) and increased immune cell trafficking into the central nervous system (CNS) are hallmarks of the pathogenesis of multiple sclerosis (MS). Platelet endothelial cell adhesion molecule-1 (PECAM-1; CD31) is expressed on cells of the vascular compartment and regulates vascular integrity and immune cell trafficking. Involvement of PECAM-1 in MS pathogenesis...