Université de Fribourg

Modulation of calretinin expression in human mesothelioma cells reveals the implication of the fak and wnt signaling pathways in conferring chemoresistance towards cisplatin

Wörthmüller, Janine ; Salicio, Valérie ; Oberson, Anne ; Blum, Walter ; Schwaller, Beat

In: International Journal of Molecular Sciences, 2019, vol. 20, no. 21, p. 5391

Malignant mesothelioma (MM) is an aggressive asbestos-linked neoplasm, characterized by dysregulation of signaling pathways. Due to intrinsic or acquired chemoresistance, MM treatment options remain limited. Calretinin is a Ca2+-binding protein expressed during MM tumorigenesis that activates the FAK signaling pathway, promoting invasion and epithelial-to-mesenchymal transition. Constitutive...

Université de Fribourg

NAB2 is a novel immune stimulator of MDA-5 that promotes a strong type I interferon response

Oberson, Anne ; Spagnuolo, Lorenzo ; Puddinu, Viola ; Barchet, Winfried ; Rittner, Karola ; Bourquin, Carole

In: Oncotarget, 2018, vol. 9, no. 5, p. -

Novel adjuvants are needed to increase the efficacy of vaccine formulations and immune therapies for cancer and chronic infections. In particular, adjuvants that promote a strong type I IFN response are required, since this cytokine is crucial for the development of efficient anti-tumoral and anti-viral immunity. Nucleic acid band 2 (NAB2) is a double- stranded RNA molecule isolated from...

Université de Fribourg

Reprogramming of TLR7 signaling enhances antitumor NK and cytotoxic T cell responses

Hotz, Christian ; Treinies, Marina ; Mottas, Inès ; Rötzer, Laurin C. ; Oberson, Anne ; Spagnuolo, Lorenzo ; Perdicchio, Maurizio ; Spinetti, Thibaud ; Herbst, Tina ; Bourquin, Carole

In: OncoImmunology, 2016, vol. 5, no. 11, p. e1232219

Toll-like receptor (TLR) 7 agonists are effective in topical application for the immunotherapy of skin cancers, but their performance for the systemic treatment of solid tumors is limited by the development of TLR tolerance. In this study, we describe a novel strategy to overcome TLR tolerance and enhance TLR7-dependent antitumor immune responses through reprogramming of TLR signaling...

Université de Fribourg

TLR and RLR signaling are reprogrammed in opposite directions after detection of viral infection

Hotz, Christian ; Roetzer, Laurin C. ; Huber, Thomas ; Sailer, Andreas ; Oberson, Anne ; Treinies, Marina ; Heidegger, Simon ; Herbst, Tina ; Endres, Stefan ; Bourquin, Carole

In: The Journal of Immunology, 2015, vol. 195, no. 9, p. 4387–4395

Innate immune recognition of RNA is key for the initiation of immunity in response to viral infection. Although the factors controlling the detection of viral RNA by innate immune receptors in host cells are increasingly well understood, little is known about the dynamic changes in signaling after the initial triggering of these receptors. In this study, we report that preconditioning with the...