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Université de Fribourg

Menthol evokes Ca2+ signals and induces oxidative stress independently of the presence of TRPM8 (menthol) receptor in cancer cells

Nazıroğlu, Mustafa ; Blum, Walter ; Jósvay, Katalin ; Çiğ, Bilal ; Henzi, Thomas ; Oláh, Zoltán ; Vizler, Csaba ; Schwaller, Beat ; Pecze, László

In: Redox Biology, 2018, vol. 14, p. 439–449

Menthol is a naturally occurring monoterpene alcohol possessing remarkable biological properties including antipruritic, analgesic, antiseptic, anti-inflammatory and cooling effects. Here, we examined the menthol-evoked Ca2+ signals in breast and prostate cancer cell lines. The effect of menthol (50–500µM) was predicted to be mediated by the transient receptor potential ion channel...

Université de Fribourg

Parvalbumin neurons as a hub in autism spectrum disorders

Lauber, Emanuel ; Filice, Federica ; Schwaller, Beat

In: Journal of Neuroscience Research, 2018, vol. 96, no. 3, p. 360–361

Université de Fribourg

Targeting breast cancer cells by MRS1477, a positive allosteric modulator of TRPV1 channels

Nazıroğlu, Mustafa ; Çiğ, Bilal ; Blum, Walter ; Vizler, Csaba ; Buhala, Andrea ; Marton, Annamária ; Katona, Róbert ; Jósvay, Katalin ; Schwaller, Beat ; Oláh, Zoltán ; Pecze, László

In: PLOS ONE, 2017, vol. 12, no. 6, p. e0179950

There is convincing epidemiological and experimental evidence that capsaicin, a potent natural transient receptor potential cation channel vanilloid member 1 (TRPV1) agonist, has anticancer activity. However, capsaicin cannot be given systemically in large doses, because of its induction of acute pain and neurological inflammation. MRS1477, a dihydropyridine derivative acts as a positive...

Université de Fribourg

Stem cell factor-based identification and functional properties of in vitro-selected subpopulations of malignant mesothelioma cells

Blum, Walter ; Pecze, , László ; Felley-Bosco, Emanuela ; Wu, Licun ; Perrot, Marc de ; Schwaller, Beat

In: Stem Cell Reports, 2017, vol. 8, no. 4, p. 1005–1017

Malignant mesothelioma (MM) is an aggressive neoplasm characterized by a poor patient survival rate, because of rapid tumor recurrence following first-line therapy. Cancer stem cells (CSCs) are assumed to be responsible for initiating tumorigenesis and driving relapse after therapeutic interventions. CSC-enriched MM cell subpopulations were identified by an OCT4/SOX2 reporter approach and...

Université de Fribourg

Posttranscriptional regulation controls calretinin expression in malignant pleural mesothelioma

Kresoja-Rakic, Jelena ; Sulemani, Merve ; Kirschner, Michaela B. ; Ronner, Manuel ; Reid, Glen ; Kao, Steven ; Schwaller, Beat ; Weder, Walter ; Stahel, Rolf A.

In: Frontiers in Genetics, 2017, vol. 8, p. -

Calretinin (CALB2) is a diagnostic and prognostic marker in malignant pleural mesothelioma (MPM). We previously reported that calretinin expression is regulated at the mRNA level. The presence of a medium-sized (573 nucleotide) 3′ untranslated region (3′UTR) predicted to contain binding sites for miR-30a/b/c/d/e and miR-9 as well as an adenine/uridine-rich element (ARE) in all three...

Université de Fribourg

The effect of gap junctional coupling on the spatiotemporal patterns of Ca2+ signals and the harmonization of Ca2+-related cellular responses

Dougoud, Michaël ; Vinckenbosch, Laura ; Mazza, Christian ; Schwaller, Beat ; Peczey, László

In: PLOS Computational Biology, 2016, vol. 12, no. 12, p. e1005295

The calcium ion (Ca²⁺), a universal signaling molecule, is widely recognized to play a fundamental role in the regulation of various biological processes. Agonist–evoked Ca²⁺ signals often manifest as rhythmic changes in the cytosolic free Ca²⁺ concentration (ccyt) called Ca²⁺ oscillations. Stimuli intensity was found to be proportional to the oscillation frequency...

Université de Fribourg

Endogenous TRPV1 stimulation leads to the activation of the inositol phospholipid pathway necessary for sustained Ca2+ oscillations

Pecze, László ; Blum, Walter ; Henzi, Thomas ; Schwaller, Beat

In: Biochimica et Biophysica Acta (BBA) - Molecular Cell Research, 2016, vol. 1863, no. 12, p. 2905–2915

Sensory neuron subpopulations as well as breast and prostate cancer cells express functional transient receptor potential vanilloid type 1 (TRPV1) ion channels; however little is known how TRPV1 activation leads to biological responses. Agonist-induced activation of TRPV1 resulted in specific spatiotemporal patterns of cytoplasmic Ca²⁺ signals in breast and prostate cancer-derived cells....

Université de Fribourg

Prenatal valproate exposure differentially affects parvalbumin-expressing neurons and related circuits in the cortex and striatum of mice

Lauber, Emanuel ; Filice, Federica ; Schwaller, Beat

In: Frontiers in Molecular Neuroscience, 2016, vol. 9, p. -

Autism spectrum disorders (ASD) comprise a number of heterogeneous neurodevelopmental diseases characterized by core behavioral symptoms in the domains of social interaction, language/communication and repetitive or stereotyped patterns of behavior. In utero exposure to valproic acid (VPA) has evolved as a highly recognized rodent ASD model due to the robust behavioral phenotype observed in...