Expression of Nrg1 in rat tooth

Neuregulin 1; heregulin alpha (Hgl; Hrga); Neu differentiation factor (Ndf); glial growth factor 2 (Ggf2); chick acetylcholine receptor inducing activity (Aria)

Species: rat
Location in rat genome: chromosome 16, 63937870 - 64126262 (UCSC, assembly June 2003)
Tooth: molar
Method: in situ hybridization (radioactive), probe: 49b


Bud stage
No expression: oral epithelium, dental epithelium, dental mesenchyme

Cap stage
Expression: dental papilla
No expression: oral epithelium, outer enamel epithelium, inner enamel epithelium, enamel knot, stellate reticulum, dental sac

Late bell
(differentiation) stage
Expression: dental papilla
No expression: outer enamel epithelium, stratum intermedia, stellate reticulum, preameloblasts, dental sac, preodontoblasts

Secretory stage
Expression: dental papilla
No expression: outer enamel epithelium, stratum intermedia, stellate reticulum, ameloblasts, dental sac, odontoblasts

Labeling in the dental papilla was weak or below detection level..


Source references:
Fried,K., Risling,M., Tidcombe,H., Gassmann,M., and, Lillesaar,C. (2002) Developmental Dynamics 224(3):356-360

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Data last edited 05.04.2004 by M.K., page last created 10.12.2004 by P.N.