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Università della Svizzera italiana

Marine anticancer agents : an overview with a particular focus on their chemical classes

Barreca, Marilia ; Spanò, Virginia ; Montalbano, Alessandra ; Cueto, Mercedes ; Díaz Marrero, Ana R. ; Deniz, Irem ; Erdoğan, Ayşegül ; Lukić Bilela, Lada ; Moulin, Corentin ; Taffin-de-Givenchy, Elisabeth ; Spriano, Filippo ; Perale, Giuseppe ; Mehiri, Mohamed ; Rotter, Ana ; Thomas, Olivier P. ; Barraja, Paola ; Gaudêncio, Susana P. ; Bertoni, Francesco

In: Marine drugs, 2020, vol. 18, no. 12, p. 28

The marine environment is a rich source of biologically active molecules for the treatment of human diseases, especially cancer. The adaptation to unique environmental conditions led marine organisms to evolve different pathways than their terrestrial counterparts, thus producing unique chemicals with a broad diversity and complexity. So far, more than 36,000 compounds have been isolated from...

Università della Svizzera italiana

Crossover or non-crossover outcomes : tailored processing of homologous recombination intermediates

Sanchez, Aurore ; Reginato, Giordano ; Cejka, Petr

In: Current opinion in genetics & development, 2021, vol. 71, p. 39-47

DNA breaks may arise accidentally in vegetative cells or in a programmed manner in meiosis. The usage of a DNA template makes homologous recombination potentially error-free, however, recombination is not always accurate. Cells possess a remarkable capacity to tailor processing of recombination intermediates to fulfill a particular need. Vegetatively growing cells aim to maintain genome...

Università della Svizzera italiana

Exon–Intron differential analysis reveals the role of competing endogenous RNAs in post-transcriptional regulation of translation

Munz, Nicolas ; Cascione, Luciano ; Parmigiani, Luca ; Tarantelli, Chiara ; Rinaldi, Andrea ; Cmiljanovic, Natasa ; Cmiljanovic, Vladimir ; Giugno, Rosalba ; Bertoni, Francesco ; Napoli, Sara

In: Non-coding RNA, 2021, vol. 7, no. 2, p. 13

Stressful conditions induce the cell to save energy and activate a rescue program modulated by mammalian target of rapamycin (mTOR). Along with transcriptional and translational regulation, the cell relies also on post-transcriptional modulation to quickly adapt the translation of essential proteins. MicroRNAs play an important role in the regulation of protein translation, and their...

Università della Svizzera italiana

Structure and function analysis of an antibody recognizing all influenza A subtypes

Kallewaard, Nicole L. ; Corti, Davide ; Collins, Patrick J. ; Neu, Ursula ; McAuliffe, Josephine M. ; Benjamin, Ebony ; Wachter-Rosati, Leslie ; Palmer-Hill, Frances J. ; Yuan, Andy Q. ; Walker, Philip A. ; Vorlaender, Matthias K. ; Bianchi, Siro ; Guarino, Barbara ; De Marco, Anna ; Vanzetta, Fabrizia ; Agatic, Gloria ; Foglierini, Mathilde ; Pinna, Debora ; Fernandez-Rodriguez, Blanca ; Fruehwirth, Alexander ; Silacci, Chiara ; Ogrodowicz, Roksana W. ; Martin, Stephen R. ; Sallusto, Federica ; Suzich, JoAnn A. ; Lanzavecchia, Antonio ; Zhu, Qing ; Gamblin, Steven J. ; Skehel, John J.

In: Cell, 2016, vol. 166, no. 3, p. 596-608

Influenza virus remains a threat because of its ability to evade vaccine-induced immune responses due to antigenic drift. Here, we describe the isolation, evolution, and structure of a broad-spectrum human monoclonal antibody (mAb), MEDI8852, effectively reacting with all influenza A hemagglutinin (HA) subtypes. MEDI8852 uses the heavy-chain VH6-1 gene and has higher potency and breadth when...

Università della Svizzera italiana

The antibody response to Plasmodium falciparum : cues for vaccine design and the discovery of receptor-based antibodies

Tan, Joshua ; Piccoli, Luca ; Lanzavecchia, Antonio

In: Annual Review of Immunology

P. falciparum remains a serious public health problem and a continuous challenge for the immune system due to the complexity and diversity of the pathogen. Recent advances from several laboratories in the characterization of the antibody response to the parasite have led to the identification of critical targets for protection and revealed a new mechanism of diversification based on the...

Università della Svizzera italiana

Identification and structure of a multidonor class of head-directed influenza-neutralizing antibodies reveal the mechanism for its recurrent elicitation

Sao-Fong Cheung, Crystal ; Fruehwirth, Alexander ; Paparoditis, Philipp Carl Georg ; Shen, Chen-Hsiang ; Foglierini, Mathilde ; Joyce, M. Gordon ; Leung, Kwanyee ; Piccoli, Luca ; Rawi, Reda ; Silacci-Fregni, Chiara ; Tsybovsky, Yaroslav ; Verardi, Raffaello ; Wang, Lingshu ; Wang, Shuishu ; Yang, Eun Sung ; Zhang, Baoshan ; Zhang, Yi ; Chuang, Gwo-Yu ; Corti, Davide ; Mascola, John R. ; Shapiro, Lawrence ; Kwong, Peter D. ; Lanzavecchia, Antonio ; Zhou, Tongqing

In: Cell reports, 2020, vol. 32, no. 9, p. 12 p

Multidonor antibodies are of interest for vaccine design because they can in principle be elicited in the general population by a common set of immunogens. For influenza, multidonor antibodies have been observed against the hemagglutinin (HA) stem, but not the immunodominant HA head. Here, we identify and characterize a multidonor antibody class (LPAF-a class) targeting the HA head. This class...

Università della Svizzera italiana

Antibody-guided vaccine design : identification of protective epitopes

Lanzavecchia, Antonio ; Frühwirth, Alexander ; Perez, Laurent ; Corti, Davide

In: Current opinion in immunology, 2016, vol. 41, no. August, p. 62-67

In the last decade, progress in the analysis of the human immune response and in the isolation of human monoclonal antibodies have provided an innovative approach to the identification of protective antigens which are the basis for the design of vaccines capable of eliciting effective B-cell immunity. In this review we illustrate, with relevant examples, the power of this approach that can...

Università della Svizzera italiana

A LAIR-1 insertion creates broadly reactive antibodies against malaria variant antigens

Tan, Joshua ; Pieper, Kathrin ; Piccoli, Luca ; Abdi, Abdirahman ; Tully, Claire Maria ; Foglierini Perez, Mathilde ; Geiger, Roger ; Jarrossay, David ; Maina Ndungu, Francis ; Wambua, Juliana ; Bejon, Philip ; Silacci Fregni, Chiara : Institute for Research in Biomedicine (IRB), Faculty of Biomedical Sciences, Università della Svizzera italiana, Switzerland ; Fernandez-Rodriguez, Blanca ; Barbieri, Sonia ; Bianchi, Siro ; Marsh, Kevin ; Thathy, Vandana ; Corti, Davide ; Sallusto, Federica ; Bull, Peter ; Lanzavecchia, Antonio

In: Nature, 2016, vol. 529, p. 25 p

Plasmodium falciparum antigens expressed on the surface of infected erythrocytes are important targets of naturally acquired immunity against malaria, but their high number and variability provide the pathogen with a powerful means of escape from host antibodies1,2,3,4. Although broadly reactive antibodies against these antigens could be useful as therapeutics and in vaccine design, their...

Università della Svizzera italiana

Thioredoxin-related transmembrane proteins : TMX1 and little brothers TMX2, TMX3, TMX4 and TMX5

Guerra, Concetta ; Molinari, Maurizio

In: Cells, 2020, vol. 9, no. 9, p. 11 p

The endoplasmic reticulum (ER) is site of synthesis and maturation of membrane and secretory proteins in eukaryotic cells. The ER contains more than 20 members of the Protein Disulfide Isomerase (PDI) family. These enzymes regulate formation, isomerization and disassembly of covalent bonds between cysteine residues. As such, PDIs ensure protein folding, which is required to attain functional...