اندازه‌گیری و مقایسه فعالیت TLR2 در ماکروفاژ‌های مشتق شده از مونوسیت‌های گاوهای کوهان‌دار و دو رگه

نوع مقاله : مقاله کامل

نویسندگان

چکیده

هدف از انجام مطالعه حاضر اندازه‌گیری و مقایسه فعالیت TLR2 در ماکروفاژهای مشتق شده از مونوسیت‌ها در گاوهای کوهان‌دار (تارپارکر) و گاوهای دو رگه (هولشتاین-فریزیان × جرسی × براون سوئیس × هاریانا) بود. سلول‌های به دست آمده از حیوانات یا توسط Pam3CSK4 القا شده یا به عنوان کنترل نگهداری شدند. فعالیت TLR2 بر اساس تعداد کپی‌های RNA ناقل تحت واحد مهاری IκB-α (NFKBIA) با استفاده از واکنش زنجیره‌ای پلیمراز زمان حقیقی یک مرحله‌ای (Real-time, one step RT-PCR) اندازه‌گیری شد. فعالیت TLR2 در سلول‌های القا شده گاوهای تارپارکر (n=7) بین محدوده 477937 ± 1060421 (n=3) تا 290222 ± 3514715 (n=3) کپی و در گاوهای دو رگه (n=7) بین محدوده 47243 ± 1365532 (n=3) تا 172340 ± 3016510 (n=3) کپی قرار داشت‏، در حالی که در سلول‌های القا نشده گاوهای تارپارکر (n=7) بین محدوه 51 ± 117 (n=3) تا 103 ± 293 (n=3) کپی و در گاوهای دو رگه بین محدوده 122 ± 182 (n=3) تا 88 ± 296 (n=3) کپی بود. فعالیت TLR2 در سلول‌های القا شده در هر دو گروه به طور معنی‌داری بیش از سلول‌های القا نشده در گروه مربوطه بود (P<0.0001). علاوه بر این هیچ گونه تفاوت معنی‌داری در فعالیت TLR2 سلول‌های القا شده و همچنین القا نشده بین گاوهای تارپارکر و دو رگه مشاهده نشد P=0.8154) و (P=0.6670. در این مطالعه برای اولین بار فعالیت TLR2 بر اساس تعداد کپی‌های mRNA NFKBIA در ماکروفاژهای مشتق شده از مونوسیت‌ها در گاوهای تارپارکر و دو رگه اندازه‌گیری و مقایسه گردید و مشاهده شد که میزان فعالیت TLR2 در هر دو نژاد گاو مورد مطالعه یکسان است.

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