2015
Root and Eruption Defects in c-Fos Mice Are Driven by Loss of Osteoclasts
ALFAQEEH, Sarah; Veronika ORALOVÁ; Morwenna FOXWORTHY; Eva MATALOVÁ; Aganemnon GRIGORIADIS et al.Základní údaje
Originální název
Root and Eruption Defects in c-Fos Mice Are Driven by Loss of Osteoclasts
Autoři
ALFAQEEH, Sarah; Veronika ORALOVÁ; Morwenna FOXWORTHY; Eva MATALOVÁ; Aganemnon GRIGORIADIS a Abigail TUCKER
Vydání
Journal of Dental Research, SAGE PUBLICATIONS INC, 2015, 0022-0345
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30208 Dentistry, oral surgery and medicine
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 4.602
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14310/15:00113937
Organizační jednotka
Přírodovědecká fakulta
UT WoS
EID Scopus
Klíčová slova anglicky
tooth; bone; rescue; HERS; osteopetrosis; remodeling
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 24. 6. 2020 08:39, Mgr. Marie Novosadová Šípková, DiS.
Anotace
V originále
c-Fos homozygous mice lack osteoclasts with a failure of the teeth to erupt and with an arrest of root development. Here, we characterize the defects associated with the failure in root development and the loss of the tooth-bone interface, and we investigate the underlying causes. We show that, while homozygous c-Fos mice have no multinucleated osteoclasts, heterozygous mice have a reduction in the number of osteoclasts with a reduction in the tooth-bone interface during development and subtle skeletal defects postnatally. In the homozygous mutants bone is found to penetrate the tooth, particularly at the apical end, physically disrupting the root forming HERS (Hertwig's epithelial root sheath) cells. The cells of the HERS continue to proliferate but cannot extend downward due to the presence of bone, leading to a loss of root formation. Tooth germ culture showed that the developing tooth invaded the static bone in mutant tissue, rather than the bone encroaching on the tooth. Although c-Fos has been shown to be expressed in developing teeth, the defect in maintenance of the tooth-bone interface appears to be driven solely by the lack of osteoclasts, as this defect can be rescued in the presence of donor osteoclasts. The rescue suggests that signals from the tooth recruit osteoclasts to clear the bone from around the tooth, allowing the tooth to grow, form roots, and later erupt.
Návaznosti
| GB14-37368G, projekt VaV |
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