IL-22/STAT3-induced increases in SLURP1 expression within psoriatic lesions exerts antimicrobial effects against Staphylococcus aureus

Yasuhiro Moriwaki, Kiyoko Takada, Toshinori Nagasaki, Natsuki Kubo, Tomohiro Ishii, Kazuaki Kose, Taihei Kageyama, Shoutaro Tsuji, Koichiro Kawashima, Hidemi Misawa

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Background SLURP1 is the causal gene for Mal de Meleda (MDM), an autosomal recessive skin disorder characterized by diffuse palmoplantar keratoderma and transgressive keratosis. Moreover, although SLURP1 likely serves as an important proliferation/differentiation factor in keratinocytes, the possible relation between SLURP1 and other skin diseases, such as psoriasis and atopic dermatitis, has not been studied, and the pathophysiological control of SLURP1 expression in keratinocytes is largely unknown. Objectives Our aim was to examine the involvement of SLURP1 in the pathophysiology of psoriasis using an imiquimod (IMQ)-induced psoriasis model mice and normal human epidermal keratinocytes (NHEKs). Results SLURP1 expression was up-regulated in the skin of IMQ-induced psoriasis model mice. In NHEKs stimulated with the inflammatory cytokines IL-17, IL-22 and TNF-α, which are reportedly expressed in psoriatic lesions, SLURP1 mRNA expression was significantly upregulated by IL-22 but not the other two cytokines. The stimulatory effect of IL-22 was completely suppressed in NHEKs treated with a STAT3 inhibitor or transfected with siRNA targeting STAT3. Because IL-22 induces production of antimicrobial proteins in epithelial cells, the antibacterial activity of SLURP1 was assessed against Staphylococcus aureus (S. aureus), which is known to be associated with disease severity in psoriasis. SLURP1 significantly suppressed the growth of S. aureus. Conclusions These results indicate SLURP1 participates in pathophysiology of psoriasis by regulating keratinocyte proliferation and differentiation, and by suppressing the growth of S. aureus.

Original languageEnglish
Article number140750
JournalPLoS One
Volume10
Issue number10
DOIs
Publication statusPublished - 2015 Oct 16

Fingerprint

psoriasis
keratinocytes
anti-infective properties
Keratinocytes
Psoriasis
lesions (animal)
Staphylococcus aureus
imiquimod
Skin
skin diseases
pathophysiology
Keratoderma, Palmoplantar, Diffuse
cytokines
animal models
Palmoplantar Keratoderma
Cytokines
antimicrobial proteins
Keratosis
hyperkeratosis
atopic dermatitis

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Medicine(all)

Cite this

IL-22/STAT3-induced increases in SLURP1 expression within psoriatic lesions exerts antimicrobial effects against Staphylococcus aureus. / Moriwaki, Yasuhiro; Takada, Kiyoko; Nagasaki, Toshinori; Kubo, Natsuki; Ishii, Tomohiro; Kose, Kazuaki; Kageyama, Taihei; Tsuji, Shoutaro; Kawashima, Koichiro; Misawa, Hidemi.

In: PLoS One, Vol. 10, No. 10, 140750, 16.10.2015.

Research output: Contribution to journalArticle

Moriwaki, Yasuhiro ; Takada, Kiyoko ; Nagasaki, Toshinori ; Kubo, Natsuki ; Ishii, Tomohiro ; Kose, Kazuaki ; Kageyama, Taihei ; Tsuji, Shoutaro ; Kawashima, Koichiro ; Misawa, Hidemi. / IL-22/STAT3-induced increases in SLURP1 expression within psoriatic lesions exerts antimicrobial effects against Staphylococcus aureus. In: PLoS One. 2015 ; Vol. 10, No. 10.
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abstract = "Background SLURP1 is the causal gene for Mal de Meleda (MDM), an autosomal recessive skin disorder characterized by diffuse palmoplantar keratoderma and transgressive keratosis. Moreover, although SLURP1 likely serves as an important proliferation/differentiation factor in keratinocytes, the possible relation between SLURP1 and other skin diseases, such as psoriasis and atopic dermatitis, has not been studied, and the pathophysiological control of SLURP1 expression in keratinocytes is largely unknown. Objectives Our aim was to examine the involvement of SLURP1 in the pathophysiology of psoriasis using an imiquimod (IMQ)-induced psoriasis model mice and normal human epidermal keratinocytes (NHEKs). Results SLURP1 expression was up-regulated in the skin of IMQ-induced psoriasis model mice. In NHEKs stimulated with the inflammatory cytokines IL-17, IL-22 and TNF-α, which are reportedly expressed in psoriatic lesions, SLURP1 mRNA expression was significantly upregulated by IL-22 but not the other two cytokines. The stimulatory effect of IL-22 was completely suppressed in NHEKs treated with a STAT3 inhibitor or transfected with siRNA targeting STAT3. Because IL-22 induces production of antimicrobial proteins in epithelial cells, the antibacterial activity of SLURP1 was assessed against Staphylococcus aureus (S. aureus), which is known to be associated with disease severity in psoriasis. SLURP1 significantly suppressed the growth of S. aureus. Conclusions These results indicate SLURP1 participates in pathophysiology of psoriasis by regulating keratinocyte proliferation and differentiation, and by suppressing the growth of S. aureus.",
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AU - Ishii, Tomohiro

AU - Kose, Kazuaki

AU - Kageyama, Taihei

AU - Tsuji, Shoutaro

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AU - Misawa, Hidemi

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AB - Background SLURP1 is the causal gene for Mal de Meleda (MDM), an autosomal recessive skin disorder characterized by diffuse palmoplantar keratoderma and transgressive keratosis. Moreover, although SLURP1 likely serves as an important proliferation/differentiation factor in keratinocytes, the possible relation between SLURP1 and other skin diseases, such as psoriasis and atopic dermatitis, has not been studied, and the pathophysiological control of SLURP1 expression in keratinocytes is largely unknown. Objectives Our aim was to examine the involvement of SLURP1 in the pathophysiology of psoriasis using an imiquimod (IMQ)-induced psoriasis model mice and normal human epidermal keratinocytes (NHEKs). Results SLURP1 expression was up-regulated in the skin of IMQ-induced psoriasis model mice. In NHEKs stimulated with the inflammatory cytokines IL-17, IL-22 and TNF-α, which are reportedly expressed in psoriatic lesions, SLURP1 mRNA expression was significantly upregulated by IL-22 but not the other two cytokines. The stimulatory effect of IL-22 was completely suppressed in NHEKs treated with a STAT3 inhibitor or transfected with siRNA targeting STAT3. Because IL-22 induces production of antimicrobial proteins in epithelial cells, the antibacterial activity of SLURP1 was assessed against Staphylococcus aureus (S. aureus), which is known to be associated with disease severity in psoriasis. SLURP1 significantly suppressed the growth of S. aureus. Conclusions These results indicate SLURP1 participates in pathophysiology of psoriasis by regulating keratinocyte proliferation and differentiation, and by suppressing the growth of S. aureus.

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