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Pankreas Beta Hücrelerinin Elektrofizyolojisi: İyon Kanal Fonksiyonları, Elektriksel Aktivite ve Sekresyon Mekanizmalarının Kapsamlı Bir Derlemesi

Electrophysiology of pancreatic beta cells: a comprehensive review of ion channel function, electrical activity, and secretory mechanisms

Aykut Oruç(İSTANBUL ÜNİVERSİTESİ - CERRAHPAŞA, CERRAHPAŞA TIP FAKÜLTESİ)0000-0001-8043-7971
Kadriye Yağmur Oruç(İSTİNYE ÜNİVERSİTESİ, TIP FAKÜLTESİ)0000-0002-3747-5136
Semih Cin(ISTANBUL UNIVERSITY-CERRAHPASA, CERRAHPAŞA SCHOOL OF MEDICINE, CERRAHPAŞA MEDICINE PR.)0009-0002-4165-0985
Hakkı Oktay Seymen(İSTANBUL ÜNİVERSİTESİ - CERRAHPAŞA, CERRAHPAŞA TIP FAKÜLTESİ)
Sayfa
83–96
Yayın Tarihi
2025-09-30
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⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

Pankreatik beta hücre fonksiyonlarını yöneten elektrofizyolojik mekanizmaların kapsamlı bir şekilde anlaşılması, diyabetes mellitus patogenezinin aydınlatılması ve yeni tedavi stratejilerinin geliştirilmesi açısından büyük önem taşımaktadır.

📌 3 Maddede Bu Makale

🎯
Amaç & Hipotez:Pankreatik β-hücreler, insülin salınımının düzenlenmesi yoluyla glukoz homeostazının korunmasında hayati bir rol oynar.
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Temel Bulgular & Veri:Elektriksel sinyal- lerin oluşumu ve modülasyonunda rol oynayan voltaj kapılı iyon kanalları, ATP'ye duyarlı ve gecikmeli rektifiye potasyum kanalları, kalsiyum iyon kanalları, klor kanalları ve geçici reseptör potansiyel (TRP) kanalları gibi çeşitli iyon kanalları tartışılmıştır.
💡
Sonuç & Katkı:Pankreatik beta hücre fonksiyonlarını yöneten elektrofizyolojik mekanizmaların kapsamlı bir şekilde anlaşılması, diyabetes mellitus patogenezinin aydınlatılması ve yeni tedavi stratejilerinin geliştirilmesi açısından büyük önem taşımaktadır.
🔬Tür:Literatür & Derleme Çalışması
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:pankreatik beta hücreleri · insülin · elektrofizyoloji

Özet

Pankreatik β-hücreler, insülin salınımının düzenlenmesi yoluyla glukoz homeostazının korunmasında hayati bir rol oynar. Bu hücrelerin iyon kanalı fonksiyonu, elektriksel aktivite ve sekresyon mekanizmaları gibi elektrofizyolojik özellikleri, fizyolojik görevlerini sağlıklı bir şekilde yerine getirebilmeleri açısından kritik öneme sahiptir. Bu kapsamlı derlemede, pankreatik β-hücrelerin elektrofizyolojisi ayrıntılı olarak ele alınmaktadır. Elektriksel sinyal- lerin oluşumu ve modülasyonunda rol oynayan voltaj kapılı iyon kanalları, ATP'ye duyarlı ve gecikmeli rektifiye potasyum kanalları, kalsiyum iyon kanalları, klor kanalları ve geçici reseptör potansiyel (TRP) kanalları gibi çeşitli iyon kanalları tartışılmıştır. Ayrıca, hücre içi kalsiyum dinamiği ile insülin salınımı arasındaki karmaşık etkileşim incelenmiştir. Bunun yanı sıra, β-hücre elektrofizyolojisini etkileyen fizyolojik ve patolojik faktörler de gözden geçirilmiştir. Pankreatik beta hücre fonksiyonlarını yöneten elektrofizyolojik mekanizmaların kapsamlı bir şekilde anlaşılması, diyabetes mellitus patogenezinin aydınlatılması ve yeni tedavi stratejilerinin geliştirilmesi açısından büyük önem taşımaktadır.

Abstract

Pancreatic β-cells play a crucial role in maintaining glucose homeostasis through the regulation of insulin secre- tion. The electrophysiological properties of these cells, including ion channel function, electrical activity, and secretory mechanisms, are essential for their proper physiological function. In this comprehensive review, we provide an in-depth analysis of the electrophysiology of pancreatic β-cells. We discuss the various ion channels involved in the generation and modulation of electrical signals, such as voltage-gated ion channels, ATP-sensitive and delayed rectifier potassium ion channels, calcium ion channels, chloride channels and transient receptor poten- tial channels. Additionally, we examine the intricate interplay between intracellular calcium dynamics and insulin release. Furthermore, we explore the physiological and pathological factors that influence the electrophysiology of β-cells. A comprehensive understanding of the electrophysiological mechanisms governing pancreatic beta cell function is crucial for elucidating the pathogenesis of diabetes mellitus and developing novel therapeutic strategies.

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Bu Makaleye Atıf Yap

Oruç, A., Oruç, K. Y., Cin, S., Seymen, H. O. (2025). Pankreas Beta Hücrelerinin Elektrofizyolojisi: İyon Kanal Fonksiyonları, Elektriksel Aktivite ve Sekresyon Mekanizmalarının Kapsamlı Bir Derlemesi. Troia Tıp Dergisi, Cilt: 6 Sayı: 3, 83–96. https://doi.org/10.55665/troiamedj.1751695

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