Journals / Türkderm Türk deri hastalıkları ve frengi arşivi / 2020 / Cilt: 54 - Sayı: 2

Changes in the expression pattern of epidermal stem cell markers in acute and chronic psoriatic lesions

Akut ve kronik psoriatik lezyonlarda epidermal kök hücre belirteç ekspresyon paternlerinin değişimi

Pages
41–45
Publication Date
2022-11-06
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

No role of MCSP and CK15 in pathogenesis of psoriasis has been determined.

📌 3 Key Takeaways

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Objective & Hypothesis:Background and Design: The characteristic morphology of skin is maintained by the self-renewal of epidermal stem cells located in the basallayer and in hair follicles in skin diseases.
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Key Findings & Data:In this study, we tried to determine the pattern of epidermal stem cell location and how it is influencedby hyperproliferative skin disease such as acute and chronic psoriatic lesions.Materials and Methods: Known epidermal stem cell markers such as beta 1 (β1) integrin, cytokeratin 15 (CK15), Melanoma-associateschondroitin sulphate proteoglycan core protein (MCSP), transcription factor (p63) and proliferative factor Ki-67 were stained in normal skin(NS) and in acute/chronic psoriasis for comparison, using immunocytochemistry.
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Conclusion & Impact:No role of MCSP and CK15 in pathogenesis of psoriasis has been determined.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Background and Design: The characteristic morphology of skin is maintained by the self-renewal of epidermal stem cells located in the basallayer and in hair follicles in skin diseases. In this study, we tried to determine the pattern of epidermal stem cell location and how it is influencedby hyperproliferative skin disease such as acute and chronic psoriatic lesions.Materials and Methods: Known epidermal stem cell markers such as beta 1 (β1) integrin, cytokeratin 15 (CK15), Melanoma-associateschondroitin sulphate proteoglycan core protein (MCSP), transcription factor (p63) and proliferative factor Ki-67 were stained in normal skin(NS) and in acute/chronic psoriasis for comparison, using immunocytochemistry. Normal skin (n=4), acute (n=5) and chronic (n=5) psoriasistissue samples were immunostained with monoclonal antibodies against these epidermal stem cell markers.Results: In this preliminary study, β1 integrin and p63 showed strong expression in basal and suprabasal layer of the epidermis in acutepsoriatic lesions while basal expressions were detected solely in chronic psoriatic lesions. Weakly positive Ki-67 positive cells in acute lesionwere scattered in the basal layer. In chronic lesions, Ki-67 expression was abundant in the basal and adjacent suprabasal layer. CK15 and MCSPare not expressed in all psoriatic lesions.Conclusion: β1 integrin and p63 (+) interfollicular epidermal stem cells especially participate in acute phase of psoriasis while Ki-67 predominatesin chronic psoriatic lesions. No role of MCSP and CK15 in pathogenesis of psoriasis has been determined.

Özet

Amaç: Derinin tipik morfolojisi, deri hastalıklarında bazal tabaka ve kıl follikülünde yer alan epidermal kök hücrelerce sağlanmaktadır. Bu çalışmada, epidermal kök hücrelerin lokasyonu saptanmaya çalışılmış ve akut ve kronik psoriatik lezyonlar gibi hiperproliferatif deri hastalıklarından nasıl etkilendikleri araştırılmıştır. Gereç ve Yöntem: Bilinen epidermal kök hücre belirteçlerinden beta 1 (β1) integrin, sitokeratin 15 (CK15), melanom-ortakları kondroitin sülfat proteoglikan çekirdek proteini (MCSP), transkripsiyon faktörü (p63) ve proliferatif faktör Ki-67, normal ve akut/kronik psoriatik lezyonlarda immünohistokimyasal metotla boyanmışlardır. Normal deri (n=4), akut (n=5) ve kronik (n=5) psoriatik doku örnekleri, bu epidermal kök hücre belirteçlerine karş geliştirilen monoklonal antikorlar ile boyanmışlardır. Bulgular: Bu ön çalışmada, akut psoriatik lezyonlarda, β1 integrin ve p63, bazal ve suprabazal tabakada kuvvetli ekspresyon gösterirken kronik lezyonlarda sadece bazal tabakada ekspresyon göstermişlerdir. Akut lezyonlarda, Ki-67 pozitif hücreler bazal tabakada dağınık ekspresyon gösterirken kronik lezyonlarda bazal ve yakın suprabazal tabakada yoğun ekspresyon gözlenmiştir. CK15 ve MCSP, akut/kronik psoriatik lezyonlarda eksprese olmamışlardır. Sonuç: β1 integrin and p63 (+) interfoliküler epidermal kök hücreleri özellikle akut faz psoriazisde yüksek iken, kronik psoriatik lezyonlarda Ki-67 yüksek bulunmuştur. MCSP ve CK15’in psoriazis patogenezinde herhangi bir rolü saptanamamıştır.

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Cite This Article

DEMİRİZ, M., KÖSE, O. (2022). Changes in the expression pattern of epidermal stem cell markers in acute and chronic psoriatic lesions. Türkderm Türk deri hastalıkları ve frengi arşivi, Cilt: 54 - Sayı: 2, 41–45. https://ajindex.com/articles/622479

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