上集:三十秒科學–Natural Killer Cell344Please respect copyright.PENANAajuPQ0yOLu
- 分享自 LIHKG 討論區344Please respect copyright.PENANAj20gQ8p9Re
https://lih.kg/2548724344Please respect copyright.PENANAoE2aHzIVcR
344Please respect copyright.PENANAQ8Utt1BdoI
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」。344Please respect copyright.PENANAcC1IyAio5J
344Please respect copyright.PENANA6xd4x9TZg9
既然這麼順利,那為何還會有癌症出現呢?344Please respect copyright.PENANAlWbhO7hxV5
344Please respect copyright.PENANApt6WXpH26o
(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。344Please respect copyright.PENANAPxnvzWjceK
344Please respect copyright.PENANAIZ6w9pWdgG
344Please respect copyright.PENANA4VQdxdqihb
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。344Please respect copyright.PENANAOhmwpdhytD
344Please respect copyright.PENANAheFgVSCSG3
(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。344Please respect copyright.PENANAZ75P1N1myb
344Please respect copyright.PENANAlu9YcdIIZt
344Please respect copyright.PENANAAqM2UtSnpS
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。344Please respect copyright.PENANAoqSpqpzNgS
344Please respect copyright.PENANATbe9sPJgQL
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。344Please respect copyright.PENANAxJdB9N0N2C
344Please respect copyright.PENANA19i74dhxtl
344Please respect copyright.PENANAXX27wUwJq8
344Please respect copyright.PENANAona7gLzZjM
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。344Please respect copyright.PENANAhf6tmpHHgs
344Please respect copyright.PENANABNquObMj6t
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/toc344Please respect copyright.PENANAJFNSx4AtA5
344Please respect copyright.PENANAcqrgID7dcn
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。344Please respect copyright.PENANAtlGHjCOW3Y
344Please respect copyright.PENANAq50ZlahTB8
Link:344Please respect copyright.PENANAOnDQblha0q
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio344Please respect copyright.PENANAaG8WaDVjIm
344Please respect copyright.PENANAd6G8MjVHYP
344Please respect copyright.PENANAl6qpaDF1oo
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。344Please respect copyright.PENANAHUTmU88Ubh
344Please respect copyright.PENANADN0CWhWmvX
Ref1:https://cancerres.aacrjournals.org/content/78/19/5631344Please respect copyright.PENANAbap22bVvx6
arrow_back
科普專欄–薯不揀單
more_vert
-
info_outline Info
-
toc Table of Contents
-
share Share
-
format_color_text Display Settings
-
exposure_plus_1 Recommend
-
Sponsor
-
report_problem Report
-
account_circle Login
Search stories, writers or societies
Continue ReadingClear All
What Others Are ReadingRefresh
X
Never miss what's happening on Penana!
科普專欄–薯不揀單
Author:
薯仔聞茱莉
ISSUE #238
三十秒科學–癌細胞逃避NK cell侵襲的一道手段
LIKES 1
READS 340
BOOKMARKS 148
campaign
Request update 0
Sponsor
Login with Facebook
or Sign up/Login to comment or bookmark!
Click to load the next chapter
X
After each update request, the author will receive a notification!
smartphone100 → Request update
X
Sponsor again
Click to login
Login first to show your name as a sponsor.
Thank you for supporting the story! :)
Please Login first.
×
Write down what you like about the story
×
Reading Theme:
Font Size:
Line Spacing:
Paragraph Spacing:
Load the next issue automatically
Reset to default
×
People Who Like This