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Journal Article

c-Met is essential for wound healing in the skin.

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http://pubman.mpdl.mpg.de/cone/persons/resource/persons50435

Morkel,  Markus
Dept. of Developmental Genetics (Head: Bernhard G. Herrmann), Max Planck Institute for Molecular Genetics, Max Planck Society;

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Citation

Chmielowiec, J., Borowiak, M., Morkel, M., Stradal, T., Munz, B., Werner, S., et al. (2007). c-Met is essential for wound healing in the skin. The Journal of Cell Biology: JCB, 177(1), 151-162. doi:10.1083/jcb.200701086.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0010-828F-C
Abstract
Wound healing of the skin is a crucial regenerative process in adult mammals. We examined wound healing in conditional mutant mice, in which the c-Met gene that encodes the receptor of hepatocyte growth factor/scatter factor was mutated in the epidermis by cre recombinase. c-Met–deficient keratinocytes were unable to contribute to the reepithelialization of skin wounds. In conditional c-Met mutant mice, wound closure was slightly attenuated, but occurred exclusively by a few (5%) keratinocytes that had escaped recombination. This demonstrates that the wound process selected and amplified residual cells that express a functional c-Met receptor. We also cultured primary keratinocytes from the skin of conditional c-Met mutant mice and examined them in scratch wound assays. Again, closure of scratch wounds occurred by the few remaining c-Met–positive cells. Our data show that c-Met signaling not only controls cell growth and migration during embryogenesis but is also essential for the generation of the hyperproliferative epithelium in skin wounds, and thus for a fundamental regenerative process in the adult.