Université de Fribourg

Collagen XII contributes to epicardial and connective tissues in the Zebrafish heart during ontogenesis and regeneration

Marro, Jan ; Pfefferli, Catherine ; Preux Charles, Anne-Sophie de ; Bise, Thomas ; Jaźwińska, Anna

In: PLOS ONE, 2016, vol. 11, no. 10, p. e0165497

Zebrafish heart regeneration depends on cardiac cell proliferation, epicardium activation and transient reparative tissue deposition. The contribution and the regulation of specific collagen types during the regenerative process, however, remain poorly characterized. Here, we identified that the non-fibrillar type XII collagen, which serves as a matrix-bridging component, is expressed in the...

Université de Fribourg

Distinct effects of inflammation on preconditioning and regeneration of the adult zebrafish heart

Preux Charles, Anne-Sophie de ; Bise, Thomas ; Baier, Felix ; Marro, Jan ; Jaźwińska, Anna

In: Open Biology, 2016, vol. 6, no. 7, p. 160102

The adult heart is able to activate cardioprotective programmes and modifies its architecture in response to physiological or pathological changes. While mammalian cardiac remodelling often involves hypertrophic expansion, the adult zebrafish heart exploits hyperplastic growth. This capacity depends on the responsiveness of zebrafish cardiomyocytes to mitogenic signals throughout their entire...

Université de Fribourg

Bone morphogenetic protein signaling promotes morphogenesis of blood vessels, wound epidermis, and actinotrichia during fin regeneration in zebrafish

Thorimbert, Valentine ; König, Désirée ; Marro, Jan ; Ruggiero, Florence ; Jaźwińska, Anna

In: The FASEB Journal, 2015, p. fj.15–272955

Zebrafish fin regeneration involves initial formation of the wound epidermis and the blastema, followed by tissue morphogenesis. The mechanisms coordinating differentiation of distinct tissues of the regenerate are poorly understood. Here, we applied pharmacologic and transgenic approaches to address the role of bone morphogenetic protein (BMP) signaling during fin restoration. To map the BMP...