Ağrının Nöroimmün Düzenlenmesinde Sitokinlerin Rolü: Moleküler Mekanizmalardan Klinik Uygulamalara
Özet
Bu bölüm, ağrının yalnızca nosiseptif sinyallerin iletiminden ibaret olmadığını; sinir sistemi ile immün sistem arasındaki dinamik etkileşimler sonucunda şekillenen karmaşık bir nöroimmün süreç olduğunu güncel moleküler veriler ışığında ele almaktadır. Sitokinlerin periferik ve merkezi sinir sistemindeki biyolojik etkileri; proinflamatuvar ve antiinflamatuvar sitokinlerin ağrı mekanizmalarındaki rolleri, glial hücre aktivasyonu, kemokin aracılı hücreler arası iletişim, iyon kanalları ve NMDA reseptörlerinin modülasyonu ile birlikte ayrıntılı olarak incelenmektedir. Ayrıca mikroglia–astrosit etkileşimi, santral sensitizasyon, epigenetik düzenleme mekanizmaları ve nöroendokrin stres yanıtı gibi kronik ağrının gelişiminde etkili hücresel ve moleküler süreçler bütüncül bir yaklaşımla değerlendirilmektedir. Bölümde romatoid artrit, diyabetik nöropati, fibromiyalji, kompleks bölgesel ağrı sendromu ve multipl skleroz gibi farklı klinik ağrı fenotiplerinde sitokin profillerinin tanısal ve tedaviye yönelik önemi tartışılmaktadır. Güncel literatür doğrultusunda hazırlanan bu bölüm, ağrının nöroimmün biyokimyasına ilişkin temel mekanizmaları açıklarken, sitokin hedefli tedavi stratejilerinin gelecekteki potansiyeline de ışık tutmaktadır.
This chapter reviews pain as a complex neuroimmune process rather than a simple consequence of nociceptive signal transmission, emphasizing the dynamic interactions between the nervous and immune systems. Current evidence regarding the biological functions of cytokines in both peripheral and central nervous systems is comprehensively discussed, including the roles of pro-inflammatory and anti-inflammatory cytokines, glial cell activation, chemokine-mediated cellular communication, ion channel regulation, and NMDA receptor modulation in pain processing. Furthermore, microglia–astrocyte crosstalk, central sensitization, epigenetic regulation, and neuroendocrine stress responses are examined as key mechanisms contributing to the initiation, maintenance, and chronification of pain. The chapter also highlights cytokine profiles and neuroimmune mechanisms in major clinical pain conditions, including rheumatoid arthritis, diabetic neuropathy, fibromyalgia, complex regional pain syndrome, and multiple sclerosis, emphasizing their diagnostic and therapeutic implications. Integrating recent advances in molecular neuroscience, immunology, and pain biology, this chapter provides a comprehensive overview of cytokine-mediated neuroimmune regulation and discusses emerging cytokine-targeted therapeutic strategies that may improve future management of chronic pain.
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