Spatial patterns produced by a reaction-diffusion system in primary hair follicles |
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Authors: | J R Mooney B N Nagorcka |
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Affiliation: | 1. CSIRO, Division of Information Technology, GPO Box 1800, Canberra City, ACT 2601, Australia;2. CSIRO, Division of Entomology, GPO Box 1700, Canberra City, ACT 2601, Australia |
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Abstract: | This paper is the third in a series examining the role of a reaction-diffusion (RD) system as the principal mechanism providing spatial information for cell differentiation during hair follicle initiation and development and hair fibre formation. A theoretical mechanism is described by which the RD system supplies positional information during hair follicle development. Solutions of the RD system within the primordial follicle are described as well as the sequence of spatial patterns provides the follicle/epidermis boundary conditions required to account for the density and grouping of follicles during initiation. At the same time the spatial patterns are also shown to be capable of providing the positional information which determines various geometrical aspects of follicle development; in particular the development of follicles at an angle to the skin surface and the initiation and location of sweat glands and sebaceous glands on the follicle. |
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