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Celli, J., Duijf, P., Hamel, B.C., Bamshad, M., Kramer, B., Smits, A.P., Newbury-Ecob, R., Hennekam, R.C., Van Buggenhout, G., van Haeringen, A., Woods, C.G., van Essen, A.J., de Waal, R., Vriend, G., Haber, D.A., Yang, A., McKeon, F., Brunner, H.G. and van Bokhoven, H. (1999) Heterozygous germline mutations in the p53 homolog p63 are the cause of EEC syndrome. Cell, 99, 143-153. doi:10.1016/S0092-8674(00)81646-3
has been cited by the following article:
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TITLE:
Lef1 may contribute to agenesis of the third molars in mice
AUTHORS:
Takehiko Shimizu, Takahiro Ichinosawa, Yuri Kiguchi, Fusae Ishida, Takahide Maeda
KEYWORDS:
Hypodontia; Gene Expression; EL Mice
JOURNAL NAME:
Open Journal of Stomatology,
Vol.3 No.5,
July
24,
2013
ABSTRACT:
Tooth agenesis is the most common developmental
anomaly of the human dentition. Epilepsy-like disorder (EL) mice, which have a 100%
incidence of agenesis of the third molars, may be a good model for the genetic
study of human tooth agenesis. Our previous congenic breeding strategy using EL
mice confined a major locus for agenesis of M3, designated am3, within an
approximately 1 Mega base pair (Mbp) interval on chromosome 3, which contains
five known genes; Lef1, Hadh, Cyp2u1, Sgms2 and Papss1. The aim of this study was to identify the strongest candidate
for am3 among the five genes using
real-time PCR analysis. The tooth germs of M3 in the bud stage of EL and
control mice were dissected out, and total RNA was extracted. In real-time PCR
analysis, a significantly low level of expression of Lef1, which is one of the essential transcription factors for early
tooth development, was observed in M3 of EL mice. In addition, a significantly
low level of expression of Fgf4,
which is a direct transcriptional target for LEF1 in early tooth development,
was observed in M3 of EL mice. Our results suggest that the cause of M3 agenesis
of EL mice may be a low level of Lef1
expression in M3 in the bud stage of EL mice.
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