上集:三十秒科學–Natural Killer Cell633Please respect copyright.PENANAC4CrI8LTbH
- 分享自 LIHKG 討論區633Please respect copyright.PENANAXGDgAmQULV
https://lih.kg/2548724633Please respect copyright.PENANAHyVM9OJCjn
633Please respect copyright.PENANA0lxYcmft1y
上集提及過NK cell有著殺滅癌細胞的本領,如圖中所見,紅色的NK cell遇上綠色的癌細胞後,在1小時打後可以見得到癌細胞開始變形,更在74分鐘打後「灰飛煙滅」。633Please respect copyright.PENANATugR8QXamz633Please respect copyright.PENANAPzzWp5YGg8
既然這麼順利,那為何還會有癌症出現呢?633Please respect copyright.PENANAbBdCKnFkaU
633Please respect copyright.PENANAhXG9aLGuVp
(圖2)這是因為癌細胞有著各樣的手段對抗NK cell的襲擊,明哲保身。633Please respect copyright.PENANAkq549RVAbN633Please respect copyright.PENANAwqlL7D9Rca
633Please respect copyright.PENANAZGo2KHgZ7M
從圖中的例子可以看到,這一次NK cell與癌細胞接觸約36分鐘後,不但沒有襲擊癌細胞,更以那兩名香港警察先鋒對待721的方式逃逸離去,使癌細胞得以安然無恙活下去。633Please respect copyright.PENANAS4rzIVQ4kX
633Please respect copyright.PENANAUfJaf9YZog
(圖3)科學家發現,較能對抗NK cell的癌細胞有著一道應付NK cell的本領,它們遇上NK cell後會快速改變自身的蛋白質結構,將歸納名為actin的蛋白質速速調配至與NK cell的接觸點,形成圖中綠色區域的聚集。633Please respect copyright.PENANAnsGF8L0X0W633Please respect copyright.PENANAwJSjW7V9eF
633Please respect copyright.PENANAgukLKp3lvF
這些actin蛋白質的調動,促使抑制NK cell的蛋白質大量且集中聚積到與NK cell的接觸點(上集所指的 – 號組合),導致NK cell失去殺滅癌細胞的功能,並且與癌細胞作出脫離。633Please respect copyright.PENANAjZyTsAqEu9
633Please respect copyright.PENANAqt0XqlBxwz
而沒能對抗NK cell的癌細胞並沒有出現actin蛋白質的調整,相對上因而較易遭受到NK cell的侵襲。633Please respect copyright.PENANAfiZ0kTmc94
633Please respect copyright.PENANAqTVkmiWdE1
633Please respect copyright.PENANAhxcqmcCAe8
633Please respect copyright.PENANAjP4M1eF5Gd
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。633Please respect copyright.PENANA0eVHQHCqWg
633Please respect copyright.PENANABfCuvlZubW
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/toc633Please respect copyright.PENANAp4pjTFO9Yj
633Please respect copyright.PENANArYuc4woUBa
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。633Please respect copyright.PENANAsafocBl2Oz
633Please respect copyright.PENANATl5koO4kYm
Link:633Please respect copyright.PENANAJiqVWLgIvJ
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio633Please respect copyright.PENANAMFIiHT9qYz
633Please respect copyright.PENANAInPYgCeuZH
633Please respect copyright.PENANAofw7jw06Me
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。633Please respect copyright.PENANA4eamJiPi03
633Please respect copyright.PENANAhY4TwpW3DN
Ref1:https://cancerres.aacrjournals.org/content/78/19/5631633Please respect copyright.PENANAACNCUY2pEE
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 #238
三十秒科學–癌細胞逃避NK cell侵襲的一道手段
喜歡 1
閱讀 629
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