לאחרונה דווח על פריצת דרך בתחום. מה השאלות האתיות והסכנות העולות מכך?

רקפת תבור | 18 ביוני 2023 | חדשות | 1 דק׳

מהם "עוברים סינתטיים" ומדוע מדענים מייצרים אותם?

ב-14 ביוני דיווחה פרופ' מגדלנה זרניקה גואז (Żernicka-Goetz) מאוניברסיטת קיימברידג' שבבריטניה, במהלך הכנס השנתי של האגודה הבינלאומית לחקר תאי גזע בבוסטון, כי הצליחה לפתח "מודל של עובר סינתטי" העשוי מתאי גזע של בני אדם. עם זאת, פרופ' גואז לא הציגה נתונים מפורטים מהמחקר שלה ולפיכך ספגה ביקורות רבות על הפרסום המוקדם שלה.

למחרת, ב-15 ביוני, פרופ' יעקוב חנא ממכון ויצמן פרסם באתר bioRxiv (המפרסם מאמרים בשלב "טרום ביקורת עמיתים") ממצאים ממחקר חדש שערך על תאי גזע אנושיים. פרופ' חנא טען שהשרה את תאי הגזע בחומרים ייעודיים וכך גרם להם להתמיין לקראת התפתחותם של שלייה, שק חלבון והעובר עצמו.

המחקרים של השניים מהווים פריצת דרך, כיוון שעד לרגע זה פותחו עוברים מתאי גזע של חיות שונות. פרופ' חנא, למשל, דיווח באוגוסט 2022 כי פיתח במעבדתו עוברי עכברים בעלי לב פועם ומערכת עיכול ומוח בשלב ראשוני.

רוצה לקרוא עוד?

להמשך קריאה הירשמו או התחברו

גידול עוברי עכבר סינטטיים במעבדה | צילום: AHMAD GHARABLI/AFP via Getty Images

גידול עוברי עכבר סינטטיים במעבדה | צילום: AHMAD GHARABLI/AFP via Getty Images

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צוות מגזין אפוק

משטרת ישראל

נחשפה תשתית להעברת כספי טרור מטורקיה לאיו"ש באמצעות אזרחים ישראלים

קרן זריהן

מחבלים בכניסה לרעים, 7 באוקטובר 2023

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בעקבות הביקורת – ממשלת אינדונזיה מבהירה כי היא מתנגדת לפינוי תושבי רצועת עזה

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בכיר חמאס מוסא אבו מרזוק

דיווח: חמאס תובע מממשלת בריטניה לבטל את סיווגו כארגון טרור

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דיווח: איומי טרור נגד להקת שן יון הובילו למכון מחקר של Huawei בסין

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הירשמו לניוזלטר שלנו וקבלו תוכן חדש למייל מדי חודש

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