Wnt-10b promotes differentiation of skin epithelial cells in vitro.
To evaluate the role of Wnt-10b in epithelial differentiation, we investigated the effects of Wnt-10b on adult mouse-derived primary skin epithelial cells (MPSEC). Recombinant Wnt-10b protein (rWnt-10b) was prepared using a gene engineering technique and MPSEC were cultured in its presence, which resulted in morphological changes from cuboidal to spindle-shaped and inhibited their proliferation. Further, involvement of the canonical Wnt signal pathway was also observed. MPSEC treated with rWnt-10b showed characteristics of the hair shaft and inner root sheath of the hair follicle, in results of Ayoub Shklar staining and immunocytochemistry. Further, the cells expressed mRNA for differentiated epithelial cells, including keratin 1, keratin 2, loricrin, mHa5, and mHb5, in association with a decreased expression of the basal cell marker keratin 5. These results suggest that Wnt-10b promotes the differentiation of MPSEC.
Program in Tissue Engineering and Department of Parasitology, Nara Medical University, Kashihara, Nara, Japan. oujix@naramed-u.ac.jp
Yukiteru
Y
Ouji
Masahide
M
Yoshikawa
Akira
A
Shiroi
Shigeaki
S
Ishizaka
D000818:Animals; D002454:Cell Differentiation; D049109:Cell Proliferation / Q000187:drug effects; D002478:Cells, Cultured; D002522:Chlorocebus aethiops; D004847:Epithelial Cells / Q000166:cytology* / Q000187:drug effects / Q000378:metabolism*; D005260:Female; D005786:Gene Expression Regulation / Q000187:drug effects; D018859:Hair Follicle / Q000166:cytology / Q000378:metabolism; D051379:Mice; D008809:Mice, Inbred C3H; D011518:Proto-Oncogene Proteins / Q000235:genetics / Q000378:metabolism* / Q000494:pharmacology; D012333:RNA, Messenger / Q000235:genetics; D011994:Recombinant Proteins / Q000494:pharmacology; D015398:Signal Transduction; D012867:Skin / Q000166:cytology* / Q000187:drug effects / Q000378:metabolism*; D051153:Wnt Proteins / Q000235:genetics / Q000378:metabolism* / Q000494:pharmacology
D011518:Proto-Oncogene Proteins; D012333:RNA, Messenger; D011994:Recombinant Proteins; D051153:Wnt Proteins; C102068:Wnt10b protein, mouse