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。609Please respect copyright.PENANAwqZlvrUZJT
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。609Please respect copyright.PENANAtshrmUSHSV
609Please respect copyright.PENANAjpm80Rr7w5
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?609Please respect copyright.PENANAAZXs2VPT6c
609Please respect copyright.PENANAXBu27XE9zi
609Please respect copyright.PENANAsmo4prl0zR
609Please respect copyright.PENANA3vSvFFGOjm
(圖2)答案很簡單,就是把那些細胞器官通通摧毀。609Please respect copyright.PENANArst8s68vdR
609Please respect copyright.PENANAh4SmnW9VSx
609Please respect copyright.PENANAHi2lKS778P
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。609Please respect copyright.PENANAqc6558fIIJ
609Please respect copyright.PENANA6eJi9UaYV3
609Please respect copyright.PENANA2PoyIfUIzl
(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。609Please respect copyright.PENANAUXkBb8XVf6
609Please respect copyright.PENANAK0zpf0Y2Mp
609Please respect copyright.PENANAzP14NtPjRa
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。609Please respect copyright.PENANAEwKNrZOnMX
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。609Please respect copyright.PENANAwwg0uBfKU2
609Please respect copyright.PENANAQtGWND1xIo
609Please respect copyright.PENANAYLl1bNY0eb
(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,609Please respect copyright.PENANAgJaxrfTn8f
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。609Please respect copyright.PENANAY9zPZyR2lU
609Please respect copyright.PENANAuEEMLoefmG
609Please respect copyright.PENANAOktUKRktwu
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。609Please respect copyright.PENANAMQcxBGJPCj
609Please respect copyright.PENANA8Zp50ZCWW4
609Please respect copyright.PENANAVUaK5rqG8v
(圖5)除班馬魚外,研究人員亦有利用老鼠進行實驗。609Please respect copyright.PENANA9l42zuLfWX
609Please respect copyright.PENANA0f0jzjrny0
609Please respect copyright.PENANAUqwneryS4h
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。609Please respect copyright.PENANAsNnuamScoX
609Please respect copyright.PENANAxX6bHdzqWy
609Please respect copyright.PENANAiE8k8ctHw1
609Please respect copyright.PENANAtyJTMiFsrc
609Please respect copyright.PENANAIAZQvVw7XE
609Please respect copyright.PENANAf4xFM7gGL2
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。609Please respect copyright.PENANA2TSpT7CV2y
609Please respect copyright.PENANAFy7Kv5CmNY
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/toc609Please respect copyright.PENANA6Pj0J11tlf
609Please respect copyright.PENANAPIKbSSk8eM
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。609Please respect copyright.PENANAG7c29HwSKl
609Please respect copyright.PENANAzp4vZfacTN
Link:609Please respect copyright.PENANApaj34Fju9x
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio609Please respect copyright.PENANASDxp1zZU4s
609Please respect copyright.PENANAdDxXub3fYI
609Please respect copyright.PENANAH9sqq1GUow
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。609Please respect copyright.PENANAHZ7fhzA5UD
609Please respect copyright.PENANAKB565irV84
Ref1:https://www.nature.com/articles/s41586-021-03439-w609Please respect copyright.PENANAUvBqrYiv5a
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科普專欄–薯不揀單
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薯仔聞茱莉
篇 #205
三十秒科學–雪亮的眼睛
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