我們身體的各部份均是由細胞組成,眼睛晶片也自當然不例外。819Please respect copyright.PENANA3k0k6r6Kdz
但細胞裡頭有著各式各樣的細胞器官,例如負責製造能源的粒線體(mitochondria)、收藏DNA的細胞核(nucleus)等,它們顯然並不是透明的。819Please respect copyright.PENANAU2c3Wyz8z1819Please respect copyright.PENANAELZjjDqNCY
究竟身體有甚麼方法可以製造透明且能讓光線通過的眼鏡晶片呢?819Please respect copyright.PENANApoAjGvPKas
819Please respect copyright.PENANAsytaCuNFlc
819Please respect copyright.PENANAIpRQdnpDUc
819Please respect copyright.PENANAKOgSinnJJj
(圖2)答案很簡單,就是把那些細胞器官通通摧毀。819Please respect copyright.PENANAdl33sWBChE819Please respect copyright.PENANAJc8pSe5c5J
819Please respect copyright.PENANAEgEY61ixFV
從圖中可見,晶片的外圍有著表皮細胞(Epithelial cells)以及纖維細胞(Fibre cells),唯獨是中間區域的細胞,它們的細胞器官均接近得消失得一乾二淨。819Please respect copyright.PENANAMMZ4AhzGoY
819Please respect copyright.PENANAjoxNDf7z0c
819Please respect copyright.PENANAKUaxJ8x3ia
(圖3)有科學家利用班馬魚作動物模型,並將兩款細胞器官分別染成綠色及紅色。819Please respect copyright.PENANAWh515bNNx0819Please respect copyright.PENANAqupN6vlnuS
819Please respect copyright.PENANAWAKnKUprNQ
從圖中可見,直至班馬魚受精後約59小時左右,綠色及紅色均分別清晰可見及有著其獨特的分佈,表示兩款細胞器官非常健在。819Please respect copyright.PENANALGaxfAMVUM
但在約60小時打後,紅色和綠色開始有著衰退的現象,亦即表示細胞器官開始逐漸被受摧毀。819Please respect copyright.PENANA59cZKY58F7
819Please respect copyright.PENANAYq3OdhP7LR
819Please respect copyright.PENANAH0vLaybSsM
(圖4)找出眼睛晶片的細胞器官被受摧毀的時段後,研究人員便著手進行一系列的實驗,819Please respect copyright.PENANAJOCKVAvEAa
並發現名為plaat的蛋白質負責在細胞器官的外膜進行破壞,因而引發細胞器官摧毀的過程。819Please respect copyright.PENANAzOISBjGFMQ819Please respect copyright.PENANAVxHLG6dmfJ
819Please respect copyright.PENANABHauiajWHv
圖中為班馬魚的眼睛晶片,可見因為缺乏plaat蛋白質的緣故,細胞器官沒能完整摧毀,其晶片亦變得相對上混濁及不透光,影像亦較為不清晰。819Please respect copyright.PENANAsrj53dSjor
819Please respect copyright.PENANAntLSPB5Kjt
819Please respect copyright.PENANAoWSb1FgeNA
(圖5)除班馬魚外,研究人員亦有利用老鼠進行實驗。819Please respect copyright.PENANAk1BscDUYly819Please respect copyright.PENANASNxpiF42XS
819Please respect copyright.PENANAMai7CwNjTr
跟班馬魚一樣,缺乏plaat蛋白質的老鼠眼睛晶片變得混濁及不透光,並影響視線。819Please respect copyright.PENANAjHqAdVF9Jg
819Please respect copyright.PENANAHN7bnV7W8g
819Please respect copyright.PENANALJisUWo8x8
819Please respect copyright.PENANANmievpFAc9
819Please respect copyright.PENANARIDeo6af1a
819Please respect copyright.PENANAenxteHR1oE
如果想我快啲出文的話,請入去Penana網站科普專欄–薯不揀單俾一個like以及Bookmark,這對我非常之重要。819Please respect copyright.PENANAKtVIuYEH1b
819Please respect copyright.PENANAwSGSvcSWFg
Link: https://www.penana.com/story/66244/%E7%A7%91%E6%99%AE%E5%B0%88%E6%AC%84-%E8%96%AF%E4%B8%8D%E6%8F%80%E5%96%AE/toc819Please respect copyright.PENANAiEyofnq6kp
819Please respect copyright.PENANAXHxp8BxD8g
同時亦可以在Penana網站裡按「買一嚿/半嚿薯仔」,以課金的方式推動我繼續搜羅資料寫文,多謝。819Please respect copyright.PENANAEUPl0ZieLL
819Please respect copyright.PENANAEI6UV01zLj
Link:819Please respect copyright.PENANADCCGY3uGrL
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio819Please respect copyright.PENANAzOT7PSjdaB
819Please respect copyright.PENANA8dqQYZnSRW
819Please respect copyright.PENANApwNBtd7co1
除非Facebook及IG重開侵侵的account,否則我的IG將不會再作更新,只會寄居本土LIHKG及Penana。819Please respect copyright.PENANAs2zAu4Otx4
819Please respect copyright.PENANANr0K8AambR
Ref1:https://www.nature.com/articles/s41586-021-03439-w819Please respect copyright.PENANA8TKaZBfGWl