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Canonical WNT signalling controls hair follicle spacing Schlake T; Sick SCell Adh Migr 2007[Jul]; 1 (3): 149-51Canonical WNT signals play an important role in hair follicle development. In addition to being crucial for epidermal appendage initiation, they control the interfollicular spacing pattern and contribute to the spatial orientation and largely parallel alignment of hair follicles. However, owing to the complexity of canonical WNT signalling and its interconnections with other pathways, many details of hair follicle formation await further clarification. Here, we discuss the recently suggested reaction-diffusion (RD) mechanism of spatial hair follicle arrangement in the light of yet unpublished data and conclusions. They clearly demonstrate that the observed hair follicle clustering in dickkopf (DKK) transgenic mice cannot be explained by any trivial process caused by protein overexpression, thereby further supporting our model of hair follicle spacing. Furthermore, we suggest future experiments to challenge the RD model of spatial follicle arrangement.|Animals[MESH]|Hair Follicle/cytology/*metabolism[MESH]|Humans[MESH]|Mice[MESH]|Mice, Transgenic[MESH]|Signal Transduction/*physiology[MESH]|Wnt Proteins/genetics/*metabolism[MESH] |
