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    Orientin이 피부각질형성세포와 아토피 피부염 동물모델에 미치는 항염증 효과

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    https://www.riss.kr/link?id=T17397051

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    다국어 초록 (Multilingual Abstract) kakao i 다국어 번역

    Background and Purposes : Atopic dermatitis (AD) is a chronic inflammatory skin disease characterized by immune dysregulation and barrier dysfunction. Orientin, a flavonoid compound, has shown potential anti-inflammatory properties. This study investigates the effects of orientin on inflammatory responses in keratinocytes and its therapeutic potential in an AD-like animal model.
    Materials and methods : HaCaT cells, a human keratinocyte line, were treated with varying concentrations of orientin to assess its effects on cell viability, cytokine production, and skin barrier function. RT-PCR and Western blot analyses were conducted to evaluate the expression of involucrin (INV) and filaggrin (FLG), as well as the activation of MAPK signaling pathways. In vivo, an AD-like mouse model was induced using dinitrochlorobenzene (DNCB), and the effects of orientin on AD symptoms, serum IgE levels, skin thickness, and T cell infiltration were examined.
    Results and conclusions : Orientin treatment did not significantly affect INV expression but showed a trend towards increasing FLG expression at concentrations of 12.5 and 25 μM. In HaCaT cells, orientin significantly inhibited ERK phosphorylation without affecting JNK and p38 MAPK activation. In the AD-like animal model, orientin reduced AD symptoms, decreased serum IgE levels, and attenuated inflammatory cell infiltration in skin lesions. Orientin exhibits anti-inflammatory effects by modulating skin barrier function and MAPK signaling pathways in keratinocytes, and it alleviates symptoms in an AD-like animal model. These findings suggest that orientin may be a promising candidate for the treatment of AD.

    Keywords : Orientin, Atopic dermatitis, Keratinocytes, Inflammation, Skin barrier function, MAPK signaling, Cytokine production, Filaggrin, ERK phosphorylation, Animal model.
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    Background and Purposes : Atopic dermatitis (AD) is a chronic inflammatory skin disease characterized by immune dysregulation and barrier dysfunction. Orientin, a flavonoid compound, has shown potential anti-inflammatory properties. This study investi...

    Background and Purposes : Atopic dermatitis (AD) is a chronic inflammatory skin disease characterized by immune dysregulation and barrier dysfunction. Orientin, a flavonoid compound, has shown potential anti-inflammatory properties. This study investigates the effects of orientin on inflammatory responses in keratinocytes and its therapeutic potential in an AD-like animal model.
    Materials and methods : HaCaT cells, a human keratinocyte line, were treated with varying concentrations of orientin to assess its effects on cell viability, cytokine production, and skin barrier function. RT-PCR and Western blot analyses were conducted to evaluate the expression of involucrin (INV) and filaggrin (FLG), as well as the activation of MAPK signaling pathways. In vivo, an AD-like mouse model was induced using dinitrochlorobenzene (DNCB), and the effects of orientin on AD symptoms, serum IgE levels, skin thickness, and T cell infiltration were examined.
    Results and conclusions : Orientin treatment did not significantly affect INV expression but showed a trend towards increasing FLG expression at concentrations of 12.5 and 25 μM. In HaCaT cells, orientin significantly inhibited ERK phosphorylation without affecting JNK and p38 MAPK activation. In the AD-like animal model, orientin reduced AD symptoms, decreased serum IgE levels, and attenuated inflammatory cell infiltration in skin lesions. Orientin exhibits anti-inflammatory effects by modulating skin barrier function and MAPK signaling pathways in keratinocytes, and it alleviates symptoms in an AD-like animal model. These findings suggest that orientin may be a promising candidate for the treatment of AD.

    Keywords : Orientin, Atopic dermatitis, Keratinocytes, Inflammation, Skin barrier function, MAPK signaling, Cytokine production, Filaggrin, ERK phosphorylation, Animal model.

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    목차 (Table of Contents)

    • 목 차
    • Ⅰ. 서 론 1
    • Ⅱ. 실험 재료 및 방법 5
    • 1. 재료 및 시약 5
    • 2. 세포 배양 6
    • 목 차
    • Ⅰ. 서 론 1
    • Ⅱ. 실험 재료 및 방법 5
    • 1. 재료 및 시약 5
    • 2. 세포 배양 6
    • 3. 세포 독성 6
    • 4. ELISA 분석 7
    • 5. RT-PCR 분석 7
    • 6. Western blot 분석 8
    • 7. 실험 동물의 사육 및 관리 10
    • 8. 아토피 피부염 유사 병변 유도 11
    • 9. 혈청 분석 12
    • 10. 아토피 피부염 유사 병변의 평가 12
    • 11. 조직학적 평가 12
    • 12. 면역조직화학적 평가 13
    • 13. 통계 분석 13
    • III. 결 과 14
    • 1. HaCaT 세포에서 orientin이 세포 독성 및 염증성 사이토카인에 미치는 영향 14
    • 2. HaCaT세포에서 orientin이 피부보호장벽 인자에 미치는 영향 16
    • 3. HaCaT 세포에서 orientin이 MAPKs 신호 전달 경로에 미치는 영향 18
    • 4. 아토피 피부염 유사 동물모델에서 orientin이 체중 및 장기에 미치는 영향 20
    • 5. 아토피 피부염 유사 동물모델에서 orientin이 아토피 피부염 증상에 미치는 영향 22
    • 6. 아토피 피부염 유사 동물모델에서 orientin이 비장 및 혈청 내 IgE 수준에 미치는 영향 24
    • 7. 아토피 피부염 유사 동물모델에서 orientin이 피부 두께에 미치는 영향 26
    • 8. 아토피 피부염 유사 동물모델에서 orientin이 피부 병변 내 염증세포 침윤에 미치는 영향 28
    • 9. 아토피 피부염 유사 동물모델에서 orientin이 피부 병변내 T 세포의 침윤에 미치는 영향 31
    • Ⅳ. 고 찰 34
    • Ⅴ. 결 론 40
    • 참고문헌 42
    • ABSTRACT 48
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