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  WNT and DKK Determine Hair Follicle Spacing Through a Reaction-Diffusion Mechanism

Sick, S., Reinker, S., Timmer, J., & Schlake, T. (2006). WNT and DKK Determine Hair Follicle Spacing Through a Reaction-Diffusion Mechanism. Science, 314, 1447-1450.

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 Creators:
Sick, Stefanie1, Author              
Reinker, Stefan, Author
Timmer, Jens, Author
Schlake, Thomas1, Author              
Affiliations:
1Department of Developmental Immunology, Max Planck Institute of Immunobiology and Epigenetics, Max Planck Society, ou_2243647              

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 Abstract: Mathematical reaction-diffusion models have been suggested to describe formation of animal pigmentation patterns and distribution of epidermal appendages. However, the crucial signals and in vivo mechanisms are still elusive. Here we identify WNT and its inhibitor DKK as primary determinants of murine hair follicle spacing, using a combined experimental and computational modeling approach. Transgenic DKK overexpression reduces overall appendage density. Moderate suppression of endogenous WNT signaling forces follicles to form clusters during an otherwise normal morphogenetic program. These results confirm predictions of a WNT/DKK-specific mathematical model and provide in vivo corroboration of the reaction-diffusion mechanism for epidermal appendage formation.

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Language(s): eng - English
 Dates: 2006-12-01
 Publication Status: Published in print
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 Rev. Type: Peer
 Identifiers: eDoc: 294076
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Title: Science
Source Genre: Journal
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Pages: - Volume / Issue: 314 Sequence Number: - Start / End Page: 1447 - 1450 Identifier: -