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

כריס רייט

מזכיר האנרגיה של ארה"ב: נחתום על הסכם עקרוני עם סעודיה בתחום האנרגיה הגרעינית

צוות מגזין אפוק

העיר סומי לאחר המתקפה

מעל 20 הרוגים במתקפת טילים בליסטיים רוסית על אוקראינה

דורון פסקין

נשיא מצרים ואמיר קטאר מקיימים היום פסגה בדוחא; במוקד – הפסקת אש ברצועת עזה

דורון פסקין

"החלו לדבר": איראן דיווחה על אווירה חיובית, אך מה היא באמת רוצה?

צוות מגזין אפוק

צה"ל השלים את כיתור רפיח; שר הביטחון לתושבי הרצועה: זה הזמן לקום ולסלק את החמאס

קרן זריהן

דובר משרד החוץ האיראני: החלו השיחות בין ארה"ב לאיראן

צוות מגזין אפוק

הירשמו לניוזלטר שלנו וקבלו תוכן חדש למייל מדי חודש

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