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Create: 2024-03-27 Update: 2024-05-15 00:44:55

الخلايا الطبيعية القاتلة Natural killer cells
وهي إحدى الوسائل الدفاعية ضد الخلايا المصابة بالفيروسات وسميت بالطبيعية لأنها تتحفز دون الحاجة إلى تعرض مسبق للفيروسات ولأنها أيضا غير نوعية non specific لأي فيروس وهي نوع من أنواع الخلايا اللمفاوية Lymphocytes غير أنها لاتمتلك مستقبلات receptors للمستضدات ، وظيفتها قتل الخلايا المصابة بالفيروس عن طريق إفراز مواد كيمياوية تدعى البيرفورينات perforins أو الأنزيمات الحالة للبروتينات Granzymes والتي تؤدي إلى موت الخلايا Apotosis

تحليلات مرضية 🔬

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4.9K viewsMohsen M. Ma’arij, Mar 27 at 17:05

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تحليلات مرضية 🔬

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الخلايا الطبيعية القاتلة Natural killer cells

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