科普專欄–薯不揀單 - 三十秒科學–大哥哥......

自然法則下，大多數的不同物種均不能互相交配。446Please respect copyright.ＰＥＮＡＮＡCBpWBMNzlU
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儘管如此，近日有科學家「成功」嘗試把人類的幹細胞注入到猴子的胚囊裡頭，有部份的混種細胞更成功生存及繁殖19日之多。446Please respect copyright.ＰＥＮＡＮＡcCYYmHiGQy
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(圖2)從圖中可見，當人類的幹細胞注入到猴子的胚囊後，科學家便將「混種細胞」在體外的實驗室培植器皿飼養，並不斷觀察兩種細胞的繁殖去向。446Please respect copyright.ＰＥＮＡＮＡQk2glcXdty
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(圖3)研究人員共嘗試注射人類幹細胞到132個猴子胚囊裡頭，隨著日數增加，胚胎的存活裡亦有所遞減。446Please respect copyright.ＰＥＮＡＮＡc4jM1nB9DU
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13日後，存活下來的胚胎僅只剩下3個。446Please respect copyright.ＰＥＮＡＮＡcJAB7SeESi
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數字上無疑是一道失敗，但在整個過程中，人類的幹細胞的確是能夠在猴子胚囊繁殖及演化，證實人類幹細胞有能力在其他物種的胚胎細胞生存。446Please respect copyright.ＰＥＮＡＮＡGcI1p61HjE
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為何要做這種實驗?446Please respect copyright.ＰＥＮＡＮＡBir4a7PN33
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初心是希望透過其他物種發展人體器官，作醫學治病用途。446Please respect copyright.ＰＥＮＡＮＡg7ZHih2JJy
現今已有不少研究在體外實驗室培植皿上發展類近器官的結構，但對比確實在動物體內的環境裡，效率及性能暫時來說始終是無法比得上。446Please respect copyright.ＰＥＮＡＮＡesEu2RLVqE
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至於道德倫理方面，這研究無疑是對全世界人士的一道試探。446Please respect copyright.ＰＥＮＡＮＡRtR2eWKDKh
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Ref1:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6015555/446Please respect copyright.ＰＥＮＡＮＡPn3i5QKo9W

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