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Université de Fribourg

Distribution and restoration of serotonin-immunoreactive paraneuronal cells during caudal fin regeneration in zebrafish

König, Désirée ; Dagenais, Paule ; Senk, Anita ; Djonov, Valentin ; Aegerter, Christof M. ; Jaźwińska, Anna

In: Frontiers in Molecular Neuroscience, 2019, vol. 12, p. -

Aquatic vertebrates possess diverse types of sensory cells in their skin to detect stimuli in the water. In the adult zebrafish, a common model organism, the presence of such cells in fins has only rarely been studied. Here, we identified scattered serotonin (5-HT)-positive cells in the epidermis of the caudal fin. These cells were distinct from keratinocytes as revealed by their low...

Université de Fribourg

In vivo quantification of mechanical properties of caudal fins in adult zebrafish

Puri, Sahil ; Aegerter-Wilmsen, Tinri ; Jaźwińska, Anna ; Aegerter, Christof M.

In: Journal of Experimental Biology, 2018, vol. 221, no. 4, p. jeb171777

Skip to Next SectionThe caudal fins of adult zebrafish are supported by multiple bony rays that are laterally interconnected by soft interray tissue. Little is known about the fin's mechanical properties that influence bending in response to hydrodynamic forces during swimming. Here, we developed an experimental setup to measure the elastic properties of caudal fins in vivo by applying...

Université de Fribourg

The art of fin regeneration in zebrafish

Pfefferli, Catherine ; Jaźwińska, Anna

In: Regeneration, 2015, p. -

The zebrafish fin provides a valuable model to study the epimorphic type of regeneration, by which the amputated part of the appendage is nearly perfectly replaced. To accomplish fin regeneration, two reciprocally interacting domains need to be established at the injury site, namely, a wound epithelium and a blastema. The wound epithelium provides a supporting niche for the blastema, which...