Spatial and temporal control of laminin-332 and -511 expressions during hair morphogenesis

Hisayoshi Imanishi, Daisuke Tsuruta, Chiharu Tateishi, Koji Sugawara, Hiromi Kobayashi, Masamitsu Ishii, Kazuo Kishi

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Hair is one of the smallest organs, but has many important functions to mammals. Hair morphogenesis occurs through the reciprocal exchange of epithelial and mesenchymal signals. There are some reports about the expression of laminin-511 and -332 during hair morphogenesis, but are no reports of the chronological expression and function of laminin-511 and its counter regulator laminin-332 during hair morphogenesis. Our results of immunoblotting revealed that laminin-332 proteins were detected at stage 0 and downregulated during stage 1 to stage 2, and then recovered at stage 3. However, laminin α5 expression was constant throughout stages 0-3. According to the results of semi-quantitative RT-PCR, the mRNA expression of all laminin-332 subunits increased gradually from stage 0 to stage 2, while the mRNA expression of all laminin-511 subunits remained constant from stage 0 to stage 3. Our results suggest that the proper expression of laminin-332 and laminin-511 may regulate appropriate hair morphogenesis.

Original languageEnglish
Pages (from-to)38-42
Number of pages5
JournalMedical Molecular Morphology
Issue number1
Publication statusPublished - 2014 Mar


  • Extracellular matrix
  • Hair morphogenesis
  • Laminin-332
  • Laminin-511
  • α3 integrin
  • β4 integrin

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Molecular Biology


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