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Riquelme-Guzmán, C.* ; Beck, T.* ; Edwards-Jorquera, S.* ; Schlüßler, R.* ; Müller, P.* ; Guck, J.* ; Möllmert, S.* ; Sandoval-Guzmán, T.

In vivo assessment of mechanical properties during axolotl development and regeneration using confocal Brillouin microscopy.

Open Biol. 12:220078 (2022)
Verlagsversion DOI PMC
Open Access Gold
Creative Commons Lizenzvertrag
In processes such as development and regeneration, where large cellular and tissue rearrangements occur, cell fate and behaviour are strongly influenced by tissue mechanics. While most well-established tools probing mechanical properties require an invasive sample preparation, confocal Brillouin microscopy captures mechanical parameters optically with high resolution in a contact-free and label-free fashion. In this work, we took advantage of this tool and the transparency of the highly regenerative axolotl to probe its mechanical properties in vivo for the first time. We mapped the Brillouin frequency shift with high resolution in developing limbs and regenerating digits, the most studied structures in the axolotl. We detected a gradual increase in the cartilage Brillouin frequency shift, suggesting decreasing tissue compressibility during both development and regeneration. Moreover, we were able to correlate such an increase with the regeneration stage, which was undetected with fluorescence microscopy imaging. The present work evidences the potential of Brillouin microscopy to unravel the mechanical changes occurring in vivo in axolotls, setting the basis to apply this technique in the growing field of epimorphic regeneration.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Axolotl ; Cartilage ; Confocal Brillouin Microscopy ; Development ; Regeneration
Sprache englisch
Veröffentlichungsjahr 2022
HGF-Berichtsjahr 2022
e-ISSN 2046-2441
Zeitschrift Open Biology
Quellenangaben Band: 12, Heft: 6, Seiten: , Artikelnummer: 220078 Supplement: ,
Verlag Royal Society of London
Verlagsort London
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Pancreatic Islet Research (IPI)
POF Topic(s) 90000 - German Center for Diabetes Research
Forschungsfeld(er) Helmholtz Diabetes Center
PSP-Element(e) G-502600-001
Förderungen Deutsche Forschungsgemeinschaft
Horizon 2020
PubMed ID 35728623
Erfassungsdatum 2022-09-27