ارزیابی ریسک ایمنی غذایی محصولات ویرایش ژنی شده با فناوری :CRISPR/Cas9 مرور روایی شواهد علمی با تأکید بر خاموشسازی ژن FAE1 و کاهش اسید اروسیک در کاملینا
Irtiqa Imini Pishgiri Masdumiyat (Safety Promotion and Injury Prevention),
Vol. 13 No. 3 (1404),
28 July 2026
,
Page 5-21
https://doi.org/10.22037/iipm.v13i3.52516
Abstract
سابقه و هدف
فناوری ویرایش ژنوم CRISPR/Cas9 طی دهه اخیر به یکی از مهمترین ابزارهای اصلاح دقیق گیاهان زراعی تبدیل شده است. این فناوری امکان ایجاد تغییرات هدفمند در ژنوم را بدون انتقال پایدار ژنهای خارجی فراهم کرده و بهعنوان نسل جدید اصلاح نباتات شناخته میشود. کاملینا (Camelina sativa) یکی از گیاهان روغنی ارزشمند خانواده Brassicaceae است که به دلیل مقاومت به تنشهای محیطی، نیاز کم به نهادههای کشاورزی و ترکیب مطلوب اسیدهای چرب مورد توجه قرار گرفته است. با این حال، وجود اسید اروسیک در برخی ژنوتیپهای کاملینا میتواند مصرف غذایی آن را محدود کند. هدف این مطالعه، مرور و تحلیل شواهد علمی موجود درباره ایمنی غذایی و زیستمحیطی کاملینای ویرایششده از طریق خاموشسازی ژن FAE1با استفاده از فناوری CRISPR/Cas9 بود.
روش بررسی
این مطالعه بهصورت مروری روایی انجام شد. مقالات علمی منتشرشده در پایگاههای PubMed،Scopus و Web of Science و همچنین اسناد و گزارشهای سازمانهای بینالمللی از جمله EFSA، FDA و OECD در بازه زمانی 2013 تا 2025 مورد جستوجو قرار گرفتند. پس از غربالگری منابع، مطالعات مرتبط با ویرایش ژنFAE1، کاهش اسید اروسیک، ارزیابی ایمنی غذایی، مخاطرات زیستمحیطی و اثرات خارج از هدف CRISPR/Cas9 استخراج و تحلیل شدند. در مجموع، 30 مقاله علمی و 6 سند بینالمللی در مرور نهایی وارد شدند.
یافتهها
بررسی مطالعات نشان داد که خاموشسازی ژن FAE1 موجب کاهش قابلتوجه اسید اروسیک و سایر اسیدهای چرب بسیار بلندزنجیر در دانه کاملینا میشود. نتایج مطالعات ژنومیک، پروتئومیکس و متابولومیکس نشان داد که این تغییر ژنتیکی عمدتاً محدود به مسیرهای متابولیکی هدف بوده و تاکنون شواهد معتبری از تولید ترکیبات سمی جدید، افزایش آلرژیزایی یا بروز مخاطرات زیستمحیطی قابلتوجه گزارش نشده است. همچنین احتمال وقوع جهشهای خارج از هدف در سامانههای نوین CRISPR/Cas بسیار محدود گزارش شده است.
نتیجهگیری
بر پایه شواهد موجود، خاموشسازی FAE1 در کاملینا تاکنون نشانهای از بروز خطرات جدید و اختصاصی عمده نشان نداده است؛ با این حال، به دلیل محدود بودن دادههای مستقیم در زمینه مطالعات تغذیهای بلندمدت، ارزیابیهای چندنسلی و دادههای محیطی مزرعهای، انجام مطالعات تکمیلی برای استحکام بیشتر ارزیابی ریسک ضروری است.
- CRISPR/Cas9
- Camelina sativa
- FAE1
- Erucic Acid
- Food Safety
- Risk Assessment
- Genome Editing
- Environmental Safety
How to Cite
References
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