人們可以透過語言或肢體動作表達自己所想或傳遞訊息,但身體細胞並沒有「嘴巴」,它們又如何互相溝通呢?385Please respect copyright.PENANA5Ifx6B0OHV
385Please respect copyright.PENANAXAuyjT3jrY
385Please respect copyright.PENANAWq1FpPXDYJ
385Please respect copyright.PENANAw6aj5iaeYI
(圖2)其中的一道方法,就是透過自身表面所呈現的物質作為橋樑。385Please respect copyright.PENANAYtEsSqnR51
譬如說,當人體細胞表面的ACE2蛋白質或Neuropilin1蛋白質與武肺病毒表面的S蛋白質結合的話,武肺病毒便會入侵身體細胞裡頭。385Please respect copyright.PENANAxX3LmQDtsA
385Please respect copyright.PENANAKJPJLfItxZ
385Please respect copyright.PENANAQmq9WH036u
若細胞沒有ACE2/ Neuropilin1蛋白質的話,除非有額外的輔助,武肺病毒便沒法辨認得到細胞,順之然亦不會入侵對方。385Please respect copyright.PENANAtdgYKTw7tL
385Please respect copyright.PENANAgo9Mr0PFIC
(圖3)在大多數的情況下,細胞表面的物質均由蛋白質或脂肪所做成,糖份結構亦會鑲嵌在這些物質上,因而改變這些物質的形狀及用途。385Please respect copyright.PENANA1JKLyBer7H
385Please respect copyright.PENANA2m1iz1Uh2a
385Please respect copyright.PENANAiH9qBrUXaD
最近科學家們得出驚人的發現,一些不會參與蛋白質生產的RNA(non-coding RNA)亦會表達在細胞表面上,且有著糖份結構與自身連繫。385Please respect copyright.PENANARHCLUkFBYj
385Please respect copyright.PENANAChlbmiz3Gk
這些結構在實驗室細胞及老鼠身上同時能找得到,可以說是大幅度改寫了學術界普遍對RNA功用的看法。385Please respect copyright.PENANAKDNqFS2Vqd
385Please respect copyright.PENANAq6oRS9iRR1
而這些表達在細胞表面的RNA究竟有甚麼用途,是否參與在免疫作用等用途,則還需日後一系列的研究。385Please respect copyright.PENANAB7d4WZznmS
385Please respect copyright.PENANAajkni2FMUH
385Please respect copyright.PENANAoXeNSHENcu
385Please respect copyright.PENANAUwpuoYPrLX
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。385Please respect copyright.PENANAC95PGQHKGD
385Please respect copyright.PENANASCbtg7JfgC
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/toc385Please respect copyright.PENANABOXcUbb856
385Please respect copyright.PENANAeZtyqpNgCv
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。385Please respect copyright.PENANAGIixAbTl2U
385Please respect copyright.PENANAyJErjVgXqU
Link:385Please respect copyright.PENANAMkVVcIpfUi
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio385Please respect copyright.PENANAbe7sXpmy2p
385Please respect copyright.PENANA1aszgDrzbZ
385Please respect copyright.PENANA9FJ4bt0yHf
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。385Please respect copyright.PENANAT7jTpU7Opa
385Please respect copyright.PENANAjrnC9vQBvU
Ref1:https://www.cell.com/cell/fulltext/S0092-8674(21)00503-1
0
0
ns 172.70.127.78da2