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Título: | Rat hair follicle-constituting cells labeled by a newly-developed somatic stem cell-recognizing antibody: a possible marker of hair follicle development |
Fecha de publicación: | 2013 |
Editorial: | F. Hernández y Juan F. Madrid. Universidad de Murcia: Departamento de Biología Celular e Histología |
Cita bibliográfica: | Histology and Histopathology, vol. 28, nº 2, (2013) |
ISSN: | 1699-5848 0213-3911 |
Materias relacionadas: | CDU::6 - Ciencias aplicadas::61 - Medicina |
Palabras clave: | Antibody Immunohistochemistry Rat hair follicle |
Resumen: | . A3 was generated as an antibody recognizing somatic stem cells in rat tissues. We investigated the distribution of A3-positive cells in developing rat hair follicles by immunolabeling. A3-positive cells began to be seen in the hair germ and peg in fetuses and neonates; the positive cells were epithelial cells above basal cells. Furthermore, A3-positive cells were seen in the outer root sheath adjacent to the bulge in mature hair follicles. Double immunofluorescence revealed that these A3- positive epithelial cells reacted to E-cadherin (for all epithelial elements) but not to CK15 (for basal cells/epithelial stem cells) or to nestin (for stem cells), indicating that A3-positive epithelial cells are suprabasal cells in the developing epidermic hair follicle. Additionally, spindle-shaped mesenchymal cells surrounding the hair peg and mature hair follicle reacted to A3; in double immunofluorescence, the A3-positive cells were located outside collagen type IV-positive glassy membrane, and reacted to vimentin (for mesenchmal cells), Thy-1 (for immature mesenchymal cells), CD34 (for stem cells) and nestin, but not to α- smooth muscle actin (for myofibroblasts); the positive cells were regarded as immature mesenchymal cells with stem cell nature in the connective tissue sheath of developing hair follicles. A3-positive epithelial and mesenchymal cells did not show proliferating activity. Collectively, it is considered that A3-positive cells seen in developing rat hair follicles may be quiescent postprogenitor cells with the potential to differentiate into either highly-differentiated epithelial or mesenchymal cells. A3 would become a useful antibody to know the kinetics of rat hair follicle-constituting cells. |
Autor/es principal/es: | Ichikawa, Chisa Izawa, Takeshi Juniantito, Vetnizah Tanaka, Miyuu Hori, Mayuka Tanaka, Katsuhiro Takenaka, Shigeo Kuwamura, Mitsuru Yamate, Jyoji |
URI: | http://hdl.handle.net/10201/56236 |
Tipo de documento: | info:eu-repo/semantics/article |
Número páginas / Extensión: | 12 |
Derechos: | info:eu-repo/semantics/openAccess |
Aparece en las colecciones: | Vol.28, nº 2 (2013) |
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Ichikawa-28-257-268-2013.pdf | 11,79 MB | Adobe PDF | Visualizar/Abrir |
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