2024
Hypoxia-inducible factors in postnatal mouse molar dental pulp development: insights into expression patterns, localisation and metabolic pathways
HOLOMKOVÁ, Kateřina, Barbora VESELA, Kateřina DADÁKOVÁ, Paul T SHARPE, Herve LESOT et. al.Základní údaje
Originální název
Hypoxia-inducible factors in postnatal mouse molar dental pulp development: insights into expression patterns, localisation and metabolic pathways
Autoři
HOLOMKOVÁ, Kateřina (203 Česká republika, domácí), Barbora VESELA (203 Česká republika), Kateřina DADÁKOVÁ (203 Česká republika, domácí), Paul T SHARPE, Herve LESOT, Eva MATALOVA (203 Česká republika) a Eva ŠVANDOVÁ (203 Česká republika, domácí)
Vydání
Pflügers Archiv - European Journal of Physiology, Heidelberg, Springer, 2024, 0031-6768
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30105 Physiology
Stát vydavatele
Německo
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 4.500 v roce 2022
Organizační jednotka
Lékařská fakulta
UT WoS
001284675500002
Klíčová slova anglicky
Dental pulp; Hypoxia-inducible factors; Development; In vivo
Štítky
Změněno: 14. 8. 2024 10:59, Mgr. Tereza Miškechová
Anotace
V originále
Hypoxia is relevant to several physiological and pathological processes and this also applies for the tooth. The adaptive response to lowering oxygen concentration is mediated by hypoxia-inducible factors (HIFs). Since HIFs were shown to participate in the promotion of angiogenesis, stem cell survival, odontoblast differentiation and dentin formation, they may play a beneficial role in the tooth reparative processes. Although some data were generated in vitro, little is known about the in vivo context of HIFs in tooth development. In order to contribute to this field, the mouse mandibular first molar was used as a model.The expression and in situ localisation of HIFs were examined at postnatal (P) days P0, P7, P14, using RT-PCR and immunostaining. The expression pattern of a broad spectrum of hypoxia-related genes was monitored by customised PCR Arrays. Metabolic aspects were evaluated by determination of the lactate level and mRNA expression of the mitochondrial marker Nd1.The results show constant high mRNA expression of Hif1a, increasing expression of Hif2a, and very low expression of Hif3a during early postnatal molar development. In the examined period the localisation of HIFs in the nuclei of odontoblasts and the subodontoblastic layer identified their presence during odontoblastic differentiation. Additionally, the lower lactate level and higher expression of mitochondrial Nd1 in advanced development points to decreasing glycolysis during differentiation. Postnatal nuclear localisation of HIFs indicates a hypoxic state in specific areas of dental pulp as oxygen demands depend on physiological events such as crown and root dentin mineralization.
Návaznosti
GA21-21409S, projekt VaV |
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