[Transducin beta-TrCP expressed in developmental hair follicle of mice]

To identify the expression of antagonist beta-TrCP protein in Sonic hedgehog signal transduction pathway and Wnt signal transduction pathway in hair follicle tissues.The heads of day 18 embryo, and one day and six-days-old postnatal mice were acquired and treated with 40 g/L paraformaldehyde fixation for 48 h and paraffin embedding. The expression of beta-TrCP proteins was examined using LsAB (labelled streptavidin-biotin) method.beta-TrCP proteins were expressed in the cytoplasm of the hair stems of hair follicle, hair cuticle, cuticle of root sheath, Huxley's layer of internal root sheath cells, external root sheath and mesenchymal tissues, but not in connective tissue sheath and Henle's layer of internal root sheath.TrCP express in the developmental hair follicle tissues, which implicates that beta-TrCP regulate the developmental hair follicle by mediating the signal transduction pathways.