近日有急凍雞翼及其他產品被測量出擁有武肺存在,但武肺能否在雞翼或其他食物上大量繁殖呢?953Please respect copyright.PENANAOKZqqt9FW3
953Please respect copyright.PENANAHeuNBMc94Y
答案是,不可以。953Please respect copyright.PENANAeDw9XKk3qM
953Please respect copyright.PENANAgdgldMUoD8
武肺進行大量繁殖的話,必需要借助活生生的細胞幫忙,而其中先決的一步就是要進入細胞體內。953Please respect copyright.PENANA4jMngtcyAI
953Please respect copyright.PENANArSqRjujSFZ
武肺可否入侵細胞,基本上視乎可唔可以達成下列3個條件。953Please respect copyright.PENANAh7INhNcmWB
(圖1)953Please respect copyright.PENANAo3RGmdOIAz953Please respect copyright.PENANAaQQugA6hO9
953Please respect copyright.PENANAG5WWCosDxb
1. S protein與細胞表面的ACE2觸碰。953Please respect copyright.PENANASfwq8NBqzQ
953Please respect copyright.PENANARqfzYzY3t5
2. 細胞表面ACE2與S protein的形狀吻合,亦即是「啱嘴形」。953Please respect copyright.PENANAGgZahtBn3Q
953Please respect copyright.PENANA3sNJSoFHfy
3. 細胞表面擁有TMPRSS2蛋白質,能夠對S protein進行切割。953Please respect copyright.PENANAYTVt0d7Jp1
953Please respect copyright.PENANArMYywdHLIu
滿足3大條件後,病毒就有能力能夠入侵細胞。953Please respect copyright.PENANAGNHH7MwYrd
當然,入侵細胞後還有很多因素決定武肺能否大量繁殖,但急凍雞翼連活生生的細胞也沒有,根本無可能可以大量繁殖。953Please respect copyright.PENANAUnEdfMmfq2
953Please respect copyright.PENANA68Ll8IqBQY
何謂S protein和ACE2,可到我之前所寫的文章溫故知新。953Please respect copyright.PENANAoygZyfkrum
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/issue/9953Please respect copyright.PENANAOiyVvSHt7n
953Please respect copyright.PENANAHmds6ScOWl953Please respect copyright.PENANAAAWUBImUpK
953Please respect copyright.PENANAOaxKRtS5UM
(圖2)953Please respect copyright.PENANA1Qr2YzoJIi
第二點所謂的「啱嘴型」,所指的就是ACE2的形狀能否與武肺的S protein形狀吻合,就好像砌Puzzle一樣,兩者不吻合的話就無法連結一起,勉強亦無幸福。953Please respect copyright.PENANA4xehcqmweK
953Please respect copyright.PENANAySfe4vOXEG
如圖中所見,正因為老鼠ACE2唔啱嘴型,所以武肺無法引致老鼠患上肺炎等病徵,袁教授等人因此亦改用啱嘴型的倉鼠作為武肺的動物實驗模型。953Please respect copyright.PENANAfNxdjYnia6
953Please respect copyright.PENANAbOjYIfJ6F2
(Ref 1)有科學家嘗試將武肺打落豬、雞和鴨身上,最終無法在牠們的任何器官身上找到武肺,而且亦沒有出現任何病徵,因此斷定牠們並不會受到武肺感染。953Please respect copyright.PENANAWw7yanXHn7953Please respect copyright.PENANAqrHn85NF9x
953Please respect copyright.PENANAnffx4zotPY
(圖3)953Please respect copyright.PENANASFwC0AbnzS
關於第三點,肺(Lung)及腎臟(Kidney)同樣擁有一定數量的ACE2及TMPRSS2(Ref2),因此將會成為武肺的主要針對對象。953Please respect copyright.PENANAqTPTnYSDYr
953Please respect copyright.PENANAAQnhO8CnDl
而心臟(Heart) 同樣擁有一定數量的ACE2,某程度亦解釋了為何武肺患者康復後會被發現心臟出現異樣。953Please respect copyright.PENANApKFnTpm1eW
953Please respect copyright.PENANA2ev9T4uNFM
953Please respect copyright.PENANAmdRsbrPPW4
而男性器官睪丸(Testis),亦是ACE2數量較多的器官(圖中沒有列出),所以,嗯......953Please respect copyright.PENANABgx8UYPLif
953Please respect copyright.PENANA5xRa2zJYPB
953Please respect copyright.PENANATBYERU5zr2
953Please respect copyright.PENANAOtDeUo2ww3
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。953Please respect copyright.PENANAIhBfvOJ1Ku
953Please respect copyright.PENANAN5XImICGDo
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/toc953Please respect copyright.PENANAZ5v9nZQfxd
953Please respect copyright.PENANAFWfcUu5Opm
同時亦可以在Penana網站裡按「買一嚿薯仔」,以課金的方式推動我繼續搜羅資料寫文,多謝。953Please respect copyright.PENANAmd4CVCnpJz
953Please respect copyright.PENANArmvfTxBruf
Link:953Please respect copyright.PENANA9qm6CDgIXA
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio953Please respect copyright.PENANAyKXXumZLI6
953Please respect copyright.PENANA7D8qS530SL
953Please respect copyright.PENANAWzKtenwApi
有興趣接收科普資訊的話,歡迎follow IG: potatopigtongue。953Please respect copyright.PENANASOuylAvoDs
953Please respect copyright.PENANAuNZTvDXnZz
953Please respect copyright.PENANAak0aVSqp2w
953Please respect copyright.PENANADmPFU3Oy4U
953Please respect copyright.PENANACr6KVarXGB
953Please respect copyright.PENANAEqkCA00Qyy
Ref1:https://science.sciencemag.org/content/368/6494/1016953Please respect copyright.PENANAZVi0UH2EjH
953Please respect copyright.PENANAkwQ8VqeTCY
Ref2:https://www.sciencedirect.com/science/article/pii/S221323172030820X#fig1953Please respect copyright.PENANAhyH3SkNsXj
arrow_back
科普專欄–薯不揀單
more_vert
-
info_outline 資料
-
toc 目錄
-
share 分享
-
format_color_text 介面設置
-
exposure_plus_1 推薦
-
打賞
-
report_problem 檢舉
-
account_circle 登入
X
科普專欄–薯不揀單
作者:
薯仔聞茱莉

篇 #21
<<深入淺出–武肺會否在急凍雞翼上大量繁殖>>
喜歡 5
閱讀 949
書籤 150
campaign
催更 0
打賞

按此加載下一章
X
每次催更後,作者都會收到通知!
smartphone100 → 催更
×
寫下你喜歡這個故事的地方
×
對此喜歡的人