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2005 Fiscal Year Final Research Report Summary

Regulation of skin innate immunity by epidermal differentiation

Research Project

Project/Area Number 15209035
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Dermatology
Research InstitutionEhime University

Principal Investigator

HASHIMOTO Koji  EHIME UNIVERSITY, SCHOOL OF MEDICINE, PROFESSOR, 医学部, 教授 (00110784)

Co-Investigator(Kenkyū-buntansha) SAYAMA Koji  EHIME UNIVERSITY, SCHOOL OF MEDICINE, ASSOCIATE PROFESSOR, 医学部, 助教授 (80187286)
SHIRAKATA Yuji  EHIME UNIVERSITY, SCHOOL OF MEDICINE, INSTRUCTOR, 医学部, 講師 (50226320)
ICHIJO Hidenori  THE UNIVERSITY OF TOKYO, GRADUATE SCHOOL OF PHARMACEUTICAL SCIENCES, PROFESSOR, 大学院・薬学系研究科, 教授 (00242206)
Project Period (FY) 2003 – 2005
KeywordsEpidermis / Keratinocyte / Differentiation / Innate Immunity / Toll-like receptor / Anti-microbial peptide / Wound Healing / Virus infection
Research Abstract

Epidermal keratinocytes differentiate and form a multilayered epidermis, which is the primary barrier between the body and the outer environment. As the epidermis is constantly exposed to a variety of microbial pathogens, its function of resisting microbial pathogens is vital.
Poly (I:C) treatment induced MIP-1? production in normal human keratinocytes. A neutralizing antibody for IFN-? significantly inhibited the poly (I:C)-induced MIP-1? production indicating that MIP-1??production is via IFN-?. IFN-? priming enhanced TLR3 expression and MIP-1? production in poly (I:C)-treated keratinocytes. This suggests that IFN-? enhanced the TLR3 expression and reinforced the response of keratinocytes to poly (I:C), which resulted in an increase in MIP-1??production. Therfore, normal human keratinocytes produce MIP-1? in response to dsRNA via TLR3, and this production is regulated by IFN-? ??.
Immunohistochemical analysis revealed that the upper epidermis of normal human skin expresses ?-defensins (hBD) 1-3 and LL37. Transfection of ASK1-ΔN significantly enhanced the expression of hBD 1-3 and LL37 in normal human keratinocytes. In addition, a p38 inhibitor abolished this induction, indicating that ASK1-p38 regulates the expression of hBD1-3 and LL37. Furthermore, ASK1-p38 also regulated the expression of Toll-like receptor (TLR) 2 in keratinocytes. Therefore, ASK1-p38 regulates the innate immunity of the skin by forming an immune barrier consisting of hBDs, LL37, and TLR2 during epidermal differentiation.
Skin wound closure is essential for resistance against microbial pathogens, and keratinocyte migration is an important step in skin wound healing. Since LL-37 is upregulated at skin wound sites, LL-37 may induce keratinocyte migration. In this study, we found that LL-37 induced keratinocyte migration via HB-EGF-mediated transactivation of EGFR. This study strongly suggests that LL-37 closes the skin wound by induction of keratinocyte migration.

  • Research Products

    (40 results)

All 2006 2005 Other

All Journal Article (36 results) Book (4 results)

  • [Journal Article] SOCS1 negative feedback of STAT1 activation is a key pathway in the dsRNA-induced innate immune response of human keratinocytes2006

    • Author(s)
      DaiX
    • Journal Title

      FInvestDermatol (in press)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Bone morphogenetic protein-2 modulates Wnt and frizzled expression and enhanoes the canonical pathway of Wnt signaling in normal keratinocytes2006

    • Author(s)
      YangL
    • Journal Title

      JDermatolSci (in press)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] The role of protein kinase C{delta} activation and STAT3 Ser727 phosphorylation in insulin-induced keratinocyte proliferation2006

    • Author(s)
      GartsbeinM
    • Journal Title

      JCellSci 119

      Pages: 470-481

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Enzyme-linked immunosorbent assay using bacterial recombinant proteins of human BP230 as a diagnostic tool for bullous pemphigoid2006

    • Author(s)
      Yoshida, T.
    • Journal Title

      JDermatolSci 41

      Pages: 21-30

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Innate defences against methicillin-resistant Staphylococcus aureus(MRSA)infection2006

    • Author(s)
      KomatsuzawaH
    • Journal Title

      J Pathol 208

      Pages: 249-260

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] The role of protein kinase C {delta} activation and STAT3 Ser727 phosphorylation in insulin-induced keratinocyte proliferation.2006

    • Author(s)
      Gartsbein M, Alt A, Hashimoto K, Nakajima K, Kuroki T, Tennenbaum T.
    • Journal Title

      J Cell Sci 119

      Pages: 470-481

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Enzyme-linked immunosorbent assay using bacterial recombinant proteins of human BP230 as a diagnostic tool for bullous pemphigoid.2006

    • Author(s)
      Yoshida, T.Hamada, M.Amagai, K.Hashimoto, R.Uehara, K.Yamaguchi, K.Imamura, E.Okamoto, S.Yasumoto, T.Hashimoto
    • Journal Title

      J Dermatol Sci. 41

      Pages: 21-30

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Innate defences against methicillin-resistant Staphylococcus aureus (MRSA) infection.2006

    • Author(s)
      Komatsuzawa H, Ouhara K, Yamada S, Fujiwara T, Sayama K, Hashimoto K, Sugai M
    • Journal Title

      J Pathol. 208

      Pages: 249-260

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] SOCS3/CIS3 negative regulation of STAT3 in HGF-induced keratinocyte migration2005

    • Author(s)
      TokumaruS
    • Journal Title

      Biochem Biophys Res Commun 327

      Pages: 100-105

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] In vitro keratinocyte dissociation assay for evaluation of the pathogenicity of anti-desmoglein 3 IgG autoantibodies in pemphigus vulgaris2005

    • Author(s)
      IshiiK
    • Journal Title

      JInvestDermatol 124

      Pages: 939-946

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Cre-loxP adenovirus-mediated foreign gene expression in skin-equivalent keratinocytes2005

    • Author(s)
      HanakawaY
    • Journal Title

      BrJDermatol 152

      Pages: 1391-1292

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Heparin-binding EGF-like growth factor accelerates keratinocyte migration and skin wound healing2005

    • Author(s)
      ShirakataY
    • Journal Title

      JCellSci 118

      Pages: 2363-2370

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] ASK1-mediated keratinocyte differentiation regulates the expression of β-defensins,LL37,and TLR22005

    • Author(s)
      SayamaK
    • Journal Title

      EurJImmun 35

      Pages: 1886-1895

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Microbubble-enhanced ultrasound for gene transfer into living skin equivalents2005

    • Author(s)
      YangL
    • Journal Title

      JDermatolSci 40

      Pages: 105-114

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] dsRNA-mediated innate immunity of epidermal keratinocytes.2005

    • Author(s)
      TohyamaM
    • Journal Title

      Biochem Biophys Res Commun 335

      Pages: 505-511

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Induction of keratinocyte migration via transactivation of the EGF receptor by the antimicrobial peptide LL-372005

    • Author(s)
      TokumaruS
    • Journal Title

      JImmunol 175

      Pages: 4662-4668

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Drug-induced hypersensitivity syndrome due to mexiletine associated with human herpes virus 6 and cytomegalovirus reactivation2005

    • Author(s)
      SekiguchiA
    • Journal Title

      JDermatol 32

      Pages: 278-281

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Urokinase-induced activation of the gp130/Tyk2/Stat3 pathway mediates a pro-inflammatory effect in human mesangial cells via expression of the anaphylatoxin C5a receptor2005

    • Author(s)
      ShushakovaN
    • Journal Title

      J Cell SCi 118

      Pages: 2743-2753

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Suppression of Stat3 promotes neurogenesis in cultured neural stem cells2005

    • Author(s)
      GuF
    • Journal Title

      J Neurosci Res 81

      Pages: 163-171

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Mechanism of thymus and activation regulated chemokine(TARC)/CCL17 production and its modulation by roxithromycin2005

    • Author(s)
      KomeneM
    • Journal Title

      J Invest Dermatol 125

      Pages: 491-498

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Susceptibilities of periodontopathogenic and cariogenic bacteria to antibacterial pepttides,{beta}-defensins and LL37,produced by human epithelial cells2005

    • Author(s)
      OuharaK
    • Journal Title

      J Antimicrob Chemother 55

      Pages: 888-896

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] SOCS3/CIS3 negative regulation of STAT3 in HGF-induced keratinocyte migration.2005

    • Author(s)
      Tokumaru S, Sayama K, Yamasaki K, Shirakata Y, Hanakawa Y, Yahata Y, Dai X, Tohyama M, Yang L, Yoshimura A, Hashimoto K.
    • Journal Title

      Biochem Biophys Res Commun. 327

      Pages: 100-105

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] In vitro keratinocyte dissociation assay for evaluation of the pathogenicity of anti-desmoglein 3 IgG autoantibodies in pemphigus vulgaris.2005

    • Author(s)
      Ishii K, Harada R, Matsuo I, Shirakata Y, Hashimoto K, Amagai M.
    • Journal Title

      J Invest Dermatol 124

      Pages: 939-946

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Cre-loxP adenovirus-mediated foreign gene expression in skin-equivalent keratinocytes.2005

    • Author(s)
      Hanakawa Y, Shirakata Y, Nagai H, Yahata Y, Tokumaru S, Yamasaki K, Tohyama M, Sayama K, Hashimoto K.
    • Journal Title

      Br J Dermatol. 152

      Pages: 1391-1392

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Heparin-binding EGF-like growth factor accelerates keratinocyte migration and skin wound healing.2005

    • Author(s)
      Shirakata Y, Kimura R, Nanba D, Iwamoto R, Tokumaru S, Morimoto C, Yokota K, Nakamura M, Sayama K, Mekada E, Higashiyama S, Hashimoto K
    • Journal Title

      J Cell Sci 118

      Pages: 2363-2370

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] New mechanisms of skin innate immunity : ASK1-mediated keratinocyte differentiation regulates the expression of β-defensins, LL37, and TLR2.2005

    • Author(s)
      Sayama K, Komatsuzawa H, Yamasaki K, Shirakata Y, Hanakawa Y, Ouhara K, Tokumaru S, Dai X, Tohyama M, Ten Dijke P, Sugai M, Ichijo H, Hashimoto K
    • Journal Title

      Eur J Immun 35

      Pages: 1886-1895

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Microbubble-enhanced ultrasound for gene transfer into living skin equivalents.2005

    • Author(s)
      Yang L, Shirakata Y, Tamai K, Dai X, Hanakawa Y, Tokumaru S, Yahata Y, Tohyama M, Shiraishi K, Nagai H, Wang X, Murakami S, Sayama K, Kaneda Y, Hashimoto K
    • Journal Title

      J Dermatol Sci. 40

      Pages: 105-114

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] dsRNA-mediated innate immunity of epidermal keratinocytes.2005

    • Author(s)
      Tohyama M, Dai X, Sayam K, Yamasaki K, Shirakata Y, Hanakawa Y, Tokumaru S, Yahata Y, Yang L, Nagai H, Takashima A, Hashimoto K
    • Journal Title

      Biochem Biophys Res Commun. 335

      Pages: 505-511

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Induction of keratinocyte migration via transactivation of the EGF receptor by the antimicrobial peptide LL-37.2005

    • Author(s)
      Tokumaru S, Sayama K, Shirakata Y, Komatsuzawa H, Ouhara K, Hanakawa Y, Yahata Y, Dai X, Tohyama M, Nagai H, Yang L, Higashiyama S, Yoshimura A, Sugai M, Hashimoto K
    • Journal Title

      J Immunol. 175

      Pages: 4662-4668

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Drug-induced hypersensitivity syndrome due to mexiletine associated with human herpes virus 6 and cytomegalovirus reactivation.2005

    • Author(s)
      Sekiguchi A, Kashiwagi T, Ishida-Yamamoto A, Takahashi H, Hashimoto Y, Kimura H, Tohyama M, Hashimoto K, Iizuka H.
    • Journal Title

      J Dermatol 32

      Pages: 278-281

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Urokinase-induced activation of the gp130/Tyk2/Stat3 pathway mediates a pro-inflammatory effect in human mesangial cells via expression of the anaphylatoxin C5a receptor.2005

    • Author(s)
      Shushakova N, Tkachuk N, Dangers M, Tkachuk S, Park JK, Zwirner J, Hashimoto K, Haller H, Dumler I
    • Journal Title

      J Cell Sci. 118

      Pages: 2743-2753

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Suppression of Stat3 promotes neurogenesis in cultured neural stem cells.2005

    • Author(s)
      Gu F, Hata R, Ma YJ, Tanaka J, Mitsuda N, Kumon Y, Hanakawa Y, Hashimoto K, Nakajima K, Sakanaka M
    • Journal Title

      J Neurosci Res. 81

      Pages: 163-171

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Mechanism of thymus- and activation-regulated chemokine (TARC)/CCL17 production and its modulation by roxithromycin.2005

    • Author(s)
      Komine M, Kakinuma T, Kagami S, Hanakawa Y, Hashimoto K, Tamaki K
    • Journal Title

      J Invest Dermatol. 125

      Pages: 491-498

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Susceptibilities of periodontopathogenic and cariogenic bacteria to antibacterial peptides, {beta}-defensins and LL37, produced by human epithelial cells.2005

    • Author(s)
      Ouhara K, Komatsuzawa H, Yamada S, Shiba H, Fujiwara T, Ohara M, Sayama K, Hashimoto K, Kurihara H, Sugai M.
    • Journal Title

      J Antimicrob Chemother. 55

      Pages: 888-896

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] SOCS1 negative feedback of STAT1 activation is a key pathway in the dsRNA-induced innate immune response of human keratinocytes.

    • Author(s)
      Dai X, Sayama K, Yamasaki K, Tohyama M, Shirakata Y, Hanakawa Y, Tokumaru S, Yahata Y, Yang L, Yoshimura A, Hashimoto K
    • Journal Title

      J Invest Dermatol (in press). (in press). (in press)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Bone morphogenetic protein-2 modulates Wnt and frizzled expression and enhances the canonical pathway of Wnt signaling in normal keratinocytes.

    • Author(s)
      Yang L, Yamasaki K, Shirakata Y, Dai X, Tokumaru S, Yahata Y, Tohyama M, Hanakawa Y, Sayama K, Hashimoto K.
    • Journal Title

      J Dermatol Sci (in press)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Book] 最新皮膚科学体系2006-2007、表皮ケラチノサイトの自然免疫86-94p2006

    • Author(s)
      佐山浩二
    • Total Pages
      346
    • Publisher
      中山書店
    • Description
      「研究成果報告書概要(和文)」より
  • [Book] Saishinhifukagakutaikei 2006-2007, Innate immunity of keratinocytes (in Japanese).2006

    • Author(s)
      Koji Sayama
    • Total Pages
      346(86-94)
    • Publisher
      Nakayama Shoten
    • Description
      「研究成果報告書概要(欧文)」より
  • [Book] 皮膚免疫ハンドブック改訂2版、自然免疫120-129p2005

    • Author(s)
      佐山浩二
    • Total Pages
      390
    • Publisher
      中外医学社
    • Description
      「研究成果報告書概要(和文)」より
  • [Book] Handbook for skin immunology, Vol2, Innate Immunity (in Japanese).2005

    • Author(s)
      Koji Sayama
    • Total Pages
      390(120-129)
    • Publisher
      Chugai Igakusha
    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2007-12-13  

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