Journals / Retina-Vitreus / 2011 / Cilt: 19 - Sayı: 1

Physiology of retinal pigment epithelium

Retina pigment epitel fizyolojisi

Pages
6–15
DOI
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AI Summary & Key Takeaways

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

An overview of these function is aimed in this review article.

📌 3 Key Takeaways

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Objective & Hypothesis:The retinal pigment epithelium (RPE) is an specialized epithelium cells lying in the interface between photoreceptors and choriocapillaris.
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Key Findings & Data:The main functions of the RPE are the following: 1.
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Conclusion & Impact:An overview of these function is aimed in this review article.
🔬Design:Review & Systematic Survey
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

The retinal pigment epithelium (RPE) is an specialized epithelium cells lying in the interface between photoreceptors and choriocapillaris. Understanding of many functions of RPE is important to explain, realize and manage many retinal disorders which is pathopyhisiologically related to pigment epithelium. Although RPE is responsible from the outer blood-retinal barrier (BRB), it has many other functions. The main functions of the RPE are the following: 1. Transport of water, ions and nutrients, 2. Absorption of light and protection against photooxidation, vitamin a metabolism which is necessary for the visual cycle, 3. Phagocytosis of shed photoreceptor outer segments, 4. Secretion of a variety of cytokines and growth factors for the structural integrity of the retina, 5. Maintenance of retinal apposition, and 6. Regulation of local immune responses. An overview of these function is aimed in this review article.

Özet

Retina pigment epiteli (RPE) fotoreseptör hücreleri ile koryokapillaris tabakası arasında yer alan ve bir çok açıdan özelleşmiş bir epitel hücreleridir. Retina pigment epitelinin sahip olduğu pek çok fonksiyonun iyi bilinmesi RPE ile ilişkili olabilen çok sayıda retinal hastalığın anlaşılması, açıklanması ve doğru tedavisi açısından önemlidir. Retina pigment epiteli başlıca dış kan-retina bariyerinden sorumlu olmakla birlikte birçok farklı fonksiyonlara sahiptir. Retina pigment epitelinin temel görevleri şunlardır: 1. Su, iyon ve besinlerin transportu, 2. Işığın emilimi ve ışığın oluşturduğu oksidasyona karşı korunma, 3. Vizüel siklüs için gerekli olan a vitamininin metabolizması, 4. Dökülmüş olan fotoreseptör dış segmentlerinin fagositozu, 5. Retinanın yapısal bütünlüğü için bir çok sitokin ve büyüme faktörünü salınması, 6. Retinanın pigment epiteline yapışık kalmasının sağlanması, 7. Lokal immün cevabın düzenlenmesi. Makalede bu fonksiyonların gözden geçirilmesi amaçlanmıştır.

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Cite This Article

İNAN, Ü. Ü., ÖZTAŞAN, N. (2011). Physiology of retinal pigment epithelium. Retina-Vitreus, Cilt: 19 - Sayı: 1, 6–15. https://ajindex.com/articles/307729

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