2020
Coordinated labio-lingual asymmetries in dental and bone development create a symmetrical acrodont dentition
KAVKOVÁ, M., Marie ŠULCOVÁ, Jana DUMKOVÁ, O. ZAHRADNÍČEK, J. KAISER et. al.Základní údaje
Originální název
Coordinated labio-lingual asymmetries in dental and bone development create a symmetrical acrodont dentition
Autoři
KAVKOVÁ, M., Marie ŠULCOVÁ (203 Česká republika, domácí), Jana DUMKOVÁ (203 Česká republika, domácí), O. ZAHRADNÍČEK, J. KAISER, A. S. TUCKER, T. ZIKMUND a Marcela BUCHTOVÁ (203 Česká republika, garant, domácí)
Vydání
Scientific Reports, Berlin, Nature Research, 2020, 2045-2322
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30208 Dentistry, oral surgery and medicine
Stát vydavatele
Německo
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 4.379
Kód RIV
RIV/00216224:14310/20:00114615
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000603657800006
Klíčová slova anglicky
Body patterning; Bone development
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 17. 2. 2023 12:19, Mgr. Marie Šípková, DiS.
Anotace
V originále
Organs throughout the body develop both asymmetrically and symmetrically. Here, we assess how symmetrical teeth in reptiles can be created from asymmetrical tooth germs. Teeth of lepidosaurian reptiles are mostly anchored to the jaw bones by pleurodont ankylosis, where the tooth is held in place on the labial side only. Pleurodont teeth are characterized by significantly asymmetrical development of the labial and lingual sides of the cervical loop, which later leads to uneven deposition of hard tissue. On the other hand, acrodont teeth found in lizards of the Acrodonta clade (i.e. agamas, chameleons) are symmetrically ankylosed to the jaw bone. Here, we have focused on the formation of the symmetrical acrodont dentition of the veiled chameleon (Chamaeleo calyptratus). Intriguingly, our results revealed distinct asymmetries in morphology of the labial and lingual sides of the cervical loop during early developmental stages, both at the gross and ultrastructural level, with specific patterns of cell proliferation and stem cell marker expression. Asymmetrical expression of ST14 was also observed, with a positive domain on the lingual side of the cervical loop overlapping with the SOX2 domain. In contrast, micro-CT analysis of hard tissues revealed that deposition of dentin and enamel was largely symmetrical at the mineralization stage, highlighting the difference between cervical loop morphology during early development and differentiation of odontoblasts throughout later odontogenesis. In conclusion, the early asymmetrical development of the enamel organ seems to be a plesiomorphic character for all squamate reptiles, while symmetrical and precisely orchestrated deposition of hard tissue during tooth formation in acrodont dentitions probably represents a novelty in the Acrodonta clade.
Návaznosti
GA17-14886S, projekt VaV |
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LM2018129, projekt VaV |
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LQ1601, projekt VaV |
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