Université de Fribourg

Development and clinical validation of a blood test based on 29-gene expression for early detection of colorectal cancer

Ciarloni, Laura ; Ehrensberger, Sahar Hosseinian ; Imaizumi, Natsuko ; Monnier-Benoit, Sylvain ; Nichita, Cristina ; Myung, Seung-Jae ; Kim, Joo Sung ; Song, Si Young ; Kim, Tae Il ; Weg, Boudewijn van der ; Meier, Rémy ; Borovicka, Jan ; Beglinger, Christoph ; Vallet, Cédric ; Maerten, Philippe ; Rüegg, Curzio ; Dorta, Gian

In: Clinical Cancer Research, 2016, p. -

A blood test for colorectal cancer (CRC) screening is a valuable tool to for testing asymptomatic individuals and reducing CRC-related mortality. The objective of this study was to develop and validate a novel blood test able to differentiate patients with CRC and adenomatous polyps (AP) from individuals with a negative colonoscopy. Experimental Design: A case-control, multicenter clinical...

Université de Fribourg

Discovery of a 29-gene panel in peripheral blood mononuclear cells for the detection of colorectal cancer and adenomas using high throughput real-time PCR

Ciarloni, Laura ; Hosseinian, Sahar ; Monnier-Benoit, Sylvain ; Imaizumi, Natsuko ; Dorta, Gian ; Ruegg, Curzio

In: PLoS ONE, 2015, vol. 10, no. 4, p. e0123904

Colorectal cancer (CRC) is the second leading cause of cancer-related death in developed countries. Early detection of CRC leads to decreased CRC mortality. A blood-based CRC screening test is highly desirable due to limited invasiveness and high acceptance rate among patients compared to currently used fecal occult blood testing and colonoscopy. Here we describe the discovery and validation of a...

Université de Fribourg

Radiation-induced modifications of the tumor microenvironment promote metastasis

Rüegg, Curzio ; Monnier, Yan ; Kuonen, François ; Imaizumi, Natsuko

In: Bulletin du Cancer, 2011, vol. 98, no. 6, p. 47-57

Radiotherapy is successfully used to treat cancer. Emerging evidence, however, indicates that recurrences after radiotherapy are associated with increased local invasion, metastatic spreading and poor prognosis. Radiation-induced modifications of the tumor microenvironment have been proposed to contribute to increased aggressive tumor behavior, an effect also referred to as tumor bed effect, but...

Université de Fribourg

Proangiogenic factor PlGF programs CD11b+ myelomonocytes in breast cancer during differentiation of their hematopoietic progenitors

Laurent, Julien ; Faes-van't Hull, Eveline ; Touvrey, Cedric ; Kuonen, Francois ; Lan, Qiang ; Lorusso, Girieca ; Doucey, Marie-Agnes ; Ciarloni, Laura ; Imaizumi, Natsuko ; Alghisi, Gian Carlo ; Fagiani, Ernesta ; Zaman, Khalil ; Stupp, Roger ; Shibuya, Masabumi ; Delaloye, Jean-François ; Christofori, Gerhard ; Ruegg, Curzio

In: Cancer Research, 2011, p. -

Tumor-mobilized bone marrow-derived CD11b+ myeloid cells promote tumor angiogenesis, but how and when these cells acquire proangiogenic properties is not fully elucidated. Here we show that CD11b+ myelomonocytic cells develop proangiogenic properties during their differentiation from CD34+ hematopoietic progenitors and that Placenta Growth Factor (PlGF) is critical in promoting this education....

Université de Fribourg

Radiotherapy suppresses angiogenesis in mice through TGF-ßRI/ALK5-dependent inhibition of endothelial cell sprouting

Imaizumi, Natsuko ; Monnier, Yan ; Hegi, Monika ; Mirimanoff, René-Olivier ; Rüegg, Curzio

In: PLoS ONE, 2010, vol. 5, no. 6, p. e11084

Background: Radiotherapy is widely used to treat cancer. While rapidly dividing cancer cells are naturally considered the main target of radiotherapy, emerging evidence indicates that radiotherapy also affects endothelial cell functions, and possibly also their angiogenic capacity. In spite of its clinical relevance, such putative anti-angiogenic effect of radiotherapy has not been thoroughly...