Publications de Alessandra Piersigilli

Neutrophils and Snail orchestrate the establishment of a protumor microenvironment in lung adenocarcinoma

Nicolas Jean Philippe Guex, Miguel Garcia, Nadine Fournier, Etienne Meylan, Alessandra Piersigilli, Julien Robert Rémi Faget, Svenja Johanna Groeneveld, Gael Luis Boivin, Ioannis Xenarios, Inti Zlobec

AMER ASSOC CANCER RESEARCH2018

Polyphenic trait promotes liver cancer in a model of epigenetic instability

Didier Trono, Sandra Eloise Kjeldsen, Marco Cassano, Alessandra Piersigilli, Suk Min Jang, Evaristo Jose Planet Letschert

Hepatocellular carcinoma (HCC) represents the fifth most common form of cancer worldwide and carries a high mortality rate due to lack of effective treatment. Males are eight times more likely to develop HCC than females, an effect largely driven by sex ho ...

Wiley-Blackwell2017

Long-term usability and bio-integration of polyimide-based intraneural stimulating electrodes

Sophie Marie Marthe Wurth, Jérôme Gandar, Nawal Noëlle Kinany, Silvestro Micera, Grégoire Courtine, Stanisa Raspopovic, Quentin Barraud, Alessandra Piersigilli, Marco Capogrosso, Natalia Pavlova, Jacopo Rigosa, Polina Shkorbatova

Stimulation of peripheral nerves has transiently restored lost sensation and has the potential to alleviate motor deficits. However, incomplete characterization of the long-term usability and bio-integration of intra-neural implants has restricted their us ...

Elsevier Sci Ltd2017

RIP4 inhibits STAT3 signaling to sustain lung adenocarcinoma differentiation

Paolo Angelino, Mauro Delorenzi, Nadine Fournier, Etienne Meylan, Johanna Pauline Chiffelle, Jawahar Kopparam, Alessandra Piersigilli

Loss of epithelial differentiation and extracellular matrix (ECM) remodeling are known to facilitate cancer progression and are associated with poor prognosis in patients with lung cancer. We have identified Receptor-interacting serine/threonine protein ki ...

Nature Publishing Group2017

Neutrophils and Snail Orchestrate the Establishment of a Pro-tumor Microenvironment in Lung Cancer

Nicolas Jean Philippe Guex, Miguel Garcia, Nadine Fournier, Etienne Meylan, Loïc Steiner, Alessandra Piersigilli, Julien Robert Rémi Faget, Svenja Johanna Groeneveld, Gael Luis Boivin, Ioannis Xenarios, Inti Zlobec

Understanding the immune compartment of tumors facilitates the development of revolutionary new therapies. We used a Kras(G12D)-driven mouse model of lung cancer to establish an immune signature and identified a contribution of Gr1 + neutrophils to disease ...

Cell Press2017

CMG2/ANTXR2 regulates extracellular collagen VI which accumulates in hyaline fibromatosis syndrome

Béatrice Kunz, Jérôme Bürgi, Françoise Gisou van der Goot Grunberg, Laurence Gouzi Abrami, Julie Deuquet Ariosa, Alessandra Piersigilli

Loss-of-function mutations in capillary morphogenesis gene 2 (CMG2/ANTXR2), a transmembrane surface protein, cause hyaline fibromatosis syndrome (HFS), a severe genetic disorder that is characterized by large subcutaneous nodules, gingival hypertrophy and ...

Springer Nature2017

Angiotensin II infusion into ApoE(-/-) mice: a model for aortic dissection rather than abdominal aortic aneurysm?

Nikolaos Stergiopoulos, Patrick Segers, Jessica Sordet, Alessandra Piersigilli, Bram Trachet, Lydia Aslanidou

Aims Angiotensin II-infused ApoE(-/-) mice are a popular mouse model for preclinical aneurysm research. Here, we provide insight in the often-reported but seldom-explained variability in shape of dissecting aneurysms in these mice. Methods and results N=45 ...

2017

Increased Myeloid Cell Production and Lung Bacterial Clearance in Mice Exposed to Cigarette Smoke

Alessandra Piersigilli

Pneumonia is a leading cause of hospitalization in patients with chronic obstructive pulmonary disease (COPD). Although most patients with COPD are smokers, the effects of cigarette smoke exposure on clearance of lung bacterial pathogens and on immune and ...

Amer Thoracic Soc2016

Type I Interferon Signaling Prevents IL-1 beta-Driven Lethal Systemic Hyperinflammation during Invasive Bacterial Infection of Soft Tissue

Alessandra Piersigilli

Type I interferons (IFN-Is) are fundamental for antiviral immunity, but their role in bacterial infections is contradictory and incompletely described. Streptococcus pyogenes activates IFN-I production in innate immune cells, and IFN-I receptor 1 (Ifnar1)- ...

Cell Press2016

Adamts18 deletion results in distinct developmental defects and provides a model for congenital disorders of lens, lung, and female reproductive tract development

Cathrin Brisken, Marian Caikovski, Yakir Guri, Alessandra Piersigilli, Dalya Ataca

The ADAMTS family comprises 19 secreted metalloproteinases that cleave extracellular matrix components and have diverse functions in numerous disease and physiological contexts. A number of them remain 'orphan' proteases, among them ADAMTS18, which has bee ...

Company Of Biologists Ltd2016

Defined three-dimensional microenvironments boost induction of pluripotency

Matthias Lütolf, Yoji Tabata, Adrian Ranga, Yuya Okawa, Alessandra Piersigilli, Massimiliano Caiazzo

Since the discovery of induced pluripotent stem cells (iPSCs), numerous approaches have been explored to improve the original protocol, which is based on a two-dimensional (2D) cell-culture system. Surprisingly, nothing is known about the effect of a more ...

Nature Publishing Group2016

A congenital case of intermediate-type fetal rhabdomyoma in an Ardi goat kid

Alessandra Piersigilli, Ahmed Ali

A 5-year-old pregnant Ardi goat presented with dystocia of 36h duration. Vaginal examination showed normal fetal presentation; however, a large neck mass prevented vaginal delivery and cesarean section was performed to deliver the stillborn kid. A well-cir ...

Taylor & Francis Ltd2016

The "Naked Truth": Naked Mole-Rats Do Get Cancer

Alessandra Piersigilli

Sage Publications Inc2016

Ascending Aortic Aneurysm in Angiotensin II–Infused Mice: Formation, Progression, and the Role of Focal Dissections

Nikolaos Stergiopoulos, Patrick Segers, Jessica Sordet, Alessandra Piersigilli, Bram Trachet, Lydia Aslanidou

Objective To understand the anatomy and physiology of ascending aortic aneurysms in angiotensin II-infused ApoE(-/-) mice. Approach and Results We combined an extensive in vivo imaging protocol (high-frequency ultrasound and contrast-enhanced microcomputed ...

2016

Waddlia chondrophila induces systemic infection, organ pathology, and elicits Th1-associated humoral immunity in a murine model of genital infection

Joël Gyger, Alessandra Piersigilli, David Baud

Waddlia chondrophila is a known bovine abortigenic Ch/amydia-related bacterium that has been associated with adverse pregnancy outcomes in human. However, there is a lack of knowledge regarding how W chondrophila infection spreads, its ability to elicit an ...

Frontiers Media Sa2015

The Intestinal Microbiota Contributes to the Ability of Helminths to Modulate Allergic Inflammation

Alexis Rapin, Jacques Rougemont, Laure Menin, Luc Xavier Marie Lebon, Ilaria Mosconi, Nicola Harris, Benjamin John Marsland, Mario Michael Zaiss, Lalit Kumar Dubey, Alessandra Piersigilli, Andrew J. Macpherson

Intestinal helminths are potent regulators of their host's immune system and can ameliorate inflammatory diseases such as allergic asthma. In the present study we have assessed whether this anti-inflammatory activity was purely intrinsic to helminths, or w ...

Elsevier2015

Dissecting abdominal aortic aneurysm in Ang II-infused mice: suprarenal branch ruptures and apparent luminal dilatation

Nikolaos Stergiopoulos, Patrick Segers, Jessica Sordet, Alessandra Piersigilli, Bram Trachet, Peter Modregger

Aims In this work, we provide novel insight into the morphology of dissecting abdominal aortic aneurysms in angiotensin II-infused mice. We demonstrate why they exhibit a large variation in shape and, unlike their human counterparts, are located suprarenal ...

Oxford University Press2015

Dissecting Abdominal Aortic Aneurysm in Angiotensin II-Infused Mice: The Importance of Imaging

Nikolaos Stergiopoulos, Patrick Segers, Alessandra Piersigilli, Bram Trachet

Introduction. Since the initial publication in 2000, Angiotensin II-infused mice have become one of the most popular models to study abdominal aortic aneurysm in a pre-clinical setting. We recently used phase contrast X-ray based computed tomography to dem ...

2015

Branch-related ruptures cause intramural hematoma and dissecting abdominal aortic aneurysm in angiotensin II-infused ApoE-/- mice

Nikolaos Stergiopoulos, Patrick Segers, Alessandra Piersigilli, Bram Trachet, Lydia Aslanidou

Oxford Univ Press2015

Quantification of focal lacerations in the tunica media that cause ascending aortic aneurysm in angiotensin II-infused mice

Nikolaos Stergiopoulos, Patrick Segers, Alessandra Piersigilli, Bram Trachet, Lydia Aslanidou

Oxford Univ Press2015