<!--[if gte mso 9]><xml> <o:OfficeDocumentSettings> <o:AllowPNG /> </o:OfficeDocumentSettings> </xml><![endif]--> <p class="MsoNormal">Amerikalı araştırmacılar, bağışıklık sistemini kanserli hücrelere saldırması için harekete geçirecek bir yöntem keşfetti.</p> <p class="MsoNormal">Hassas bir dengesi olan bağışıklık sistemi, yabancı maddelere saldırırken, vücudun kendi dokularına dokunmuyor.</p> <p class="MsoNormal">Hayvanlar üzerinde yapılan çalışmalar, bu dengeyi değiştirmenin kanser tedavisinde yeni tedavi yöntemlerine kapı aralayabileceğine işaret ediyor.</p> <p class="MsoNormal">Philadelphia Çocuk Hastanesi'nde yapılan araştırmanın sonuçları Nature adlı tıp dergisinde yayımlandı.</p> <p class="MsoNormal">Bağışıklık sisteminin vücudun kendi dokularına saldırmasının neden olduğu, Tip 1 diyabet ve MS gibi birçok hastalık var.</p> <p class="MsoNormal">Oto-immün hastalıkları ve kanser araştırmalarında kapsamında T hücreleri (Treg) üzerinde şimdiye kadar birçok çalışma yapıldı.</p> <p class="MsoNormal"><b style="mso-bidi-font-weight:normal">'FREN KALDIRILDI'</b></p> <p class="MsoNormal">T hücreleri, bağışıklık sisteminin bir parçası. Bu hücreler, bağışıklık sistemini vücuda saldırmaması için frenliyor.</p> <p class="MsoNormal">ABD'de yapılan yeni araştırma kapsamında Treg'e müdahale edildi. Bir anlamda kanserli hücrelere saldırması için bağışıklık sisteminin freni devre dışı bırakıldı.</p> <p class="MsoNormal">Araştırma ekibinden Dr. Wayne Hancock, "Treg hücrelerin fonksiyonunu, oto-immün reaksiyonuna izin vermeden tümörlere saldıracak şekilde azaltacak bir yol bulmamız gerekiyordu" dedi.</p> <p class="MsoNormal">Araştırmacılar, T hücrelerinin etkin bir şekilde çalışmasını sağlayacak kimyasalları olmayan fareler yetiştirdiler. Sonra normal farelerde aynı etkiyi yaratan bir ilaç kullandılar.</p> <p class="MsoNormal">İki deneyde de bağışıklık sistemi, bir tür akciğer kanserinin büyümesini sınırladı.</p> <p class="MsoNormal">Uzmanlar, bu yöntemin kanser hastalarında kullanılması için ileri testlere ihtiyaç duyulduğunu söyledi. 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