自然法則下,大多數的不同物種均不能互相交配。487Please respect copyright.PENANAZLyq8QyhKC487Please respect copyright.PENANA1z5BXP52Pz
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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。487Please respect copyright.PENANA5krwndJNHV
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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。487Please respect copyright.PENANAWyGNTKUUx5487Please respect copyright.PENANA6baGhZUP5j
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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。487Please respect copyright.PENANATSWB7wwvJ6487Please respect copyright.PENANAaFTFYmrTni
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13日後,存活下來的胚胎僅只剩下3個。487Please respect copyright.PENANAhd7uOsoi6K
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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。487Please respect copyright.PENANAzb3FTOlc2R
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為何要做這種實驗?487Please respect copyright.PENANAqoCaDXZZLv
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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。487Please respect copyright.PENANAtaZ60ALUC7
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。487Please respect copyright.PENANAbawNY9IF0c
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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。487Please respect copyright.PENANA0XSfqSLwyM
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Ref1:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6015555/487Please respect copyright.PENANAM0cHmSbBND