腫瘤內有一小部份的細胞被稱之為Cancer Stem Cells(CSC),他們對於腫瘤的發展有著莫大的功用。621Please respect copyright.PENANAmVrwNIh482621Please respect copyright.PENANApC3NLmQMsk
化療過後,大部份的癌細胞均會被殲滅,而很多時候只剩下這些CSC能夠生存;621Please respect copyright.PENANApM5rg0JSS3
學術界大多數會稱呼這現象為Minimal Residual Disease。621Please respect copyright.PENANAw3MfL4rX5O
621Please respect copyright.PENANAmb7vONUwad
這些一息尚存的CSC會在某一刻再度發展出新的腫瘤,而與之前腫瘤不同的是,他們會展現出抗藥性,較早前所用的化療藥物再不會對他們見效。621Please respect copyright.PENANAitTD39fPXb
621Please respect copyright.PENANA1MAOcTuu9l
正因如此,現今有不少針對CSC研究一直進行中,希望可以找出辦法消滅這些CSC。621Please respect copyright.PENANA0lIHYQmMKS
621Please respect copyright.PENANA1ykGRtwJYs
621Please respect copyright.PENANA9uwdsHCQDF
(圖2)CSC之所以非常之難消滅,原因就是他有各式各樣的機制躲避化療追擊,如陳同佳這天下大仆街一樣詭計多端。621Please respect copyright.PENANAonXJZH3NTv621Please respect copyright.PENANAHjjDssfTG2
621Please respect copyright.PENANAOTMy99EhFB
其中一例就是CSC會產生名為ABCG2的蛋白質,這些ABCG2蛋白質有著將化療藥物排出細胞體外的效果,導致化療藥物無法長期留在細胞內,大幅度失去藥效。621Please respect copyright.PENANAexB8jjgZrS
621Please respect copyright.PENANA969pXE8YAr
(圖3)有科學家發現(Ref1),名為SMAR1蛋白質有抑制ABCG2產生的功效。亦即是說,SMAR1蛋白質含量越低的話,ABCG2就越容易能夠生產出來。621Please respect copyright.PENANACQa2eNGHIQ
621Please respect copyright.PENANAn1bVhbTo3W621Please respect copyright.PENANAxw6ie0q7aG
621Please respect copyright.PENANAH97x3VbvcB
621Please respect copyright.PENANAIFd48RWnKg
而CSC內有兩隻名為OCT4及SOX2的蛋白質,他們能夠抑制SMAR1的蛋白質產生,導致ABCG2更容易產生出來,令細胞更容易將藥物排出體外。621Please respect copyright.PENANAshqATDPGod
621Please respect copyright.PENANAb7O0vGGbN8
621Please respect copyright.PENANABp4GaHni04
(圖4)尋覓已知資料一輪後,阿斯匹靈為已證實可抑制OCT4及SOX2蛋白質的藥物,同時亦不會被ABCG2有效排出。621Please respect copyright.PENANAhx2knj3dcM621Please respect copyright.PENANAzHU6UmdwKd
621Please respect copyright.PENANApzD5M6mwuY
這裡無疑會產生一道詢問,若果利用阿斯匹靈抑制ABCG2的產生,同時再加上化療藥物的話,會否是殺死CSC的一道妙計呢?621Please respect copyright.PENANA6kQXL1U3gy
621Please respect copyright.PENANA1qQ0db4T1V
621Please respect copyright.PENANAFo22k6bKu9
(圖5)在老鼠實驗中,同時用上阿斯匹靈及化療藥物Doxorubicin的話,的確可以令腫瘤大幅度縮小。621Please respect copyright.PENANAr8ssTxtcOo621Please respect copyright.PENANAzzi0qp5IG5
621Please respect copyright.PENANAJybxqqr4xF
但在這實驗中,單獨用上阿斯匹靈已能導致腫瘤縮小,而且文章亦沒有確實證據指出腫瘤縮小的原因是否因為少了CSC的緣故。621Please respect copyright.PENANAfeb10lEQRZ
621Please respect copyright.PENANAwcT5GYBIEW
雖有理論證據在背後支持,但用上阿斯匹靈輔助化療效果的理論還需要確實的實驗結果再作進一步的證實。621Please respect copyright.PENANA9p5riqzB2v
621Please respect copyright.PENANAarbwEhLmhw
621Please respect copyright.PENANADHcgRIDzv0
到底阿斯匹靈輔助化療效果的理論得以確實先,還是陳同住到台灣自首先呢?621Please respect copyright.PENANAComBf2iCgj
621Please respect copyright.PENANAji9xuBPyQ2
答案呼之欲出!621Please respect copyright.PENANAbSlntSJk8N
621Please respect copyright.PENANAKvzfyIyKIk
621Please respect copyright.PENANAxYkU0QjIX9
621Please respect copyright.PENANAOIaklhxe1L
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。621Please respect copyright.PENANA46a1FBS5XU
621Please respect copyright.PENANAufIDksLx7S
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/toc621Please respect copyright.PENANA33cCuH2kNS
621Please respect copyright.PENANAsuhajXTlHt
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。621Please respect copyright.PENANAlo4jt1xcYe
621Please respect copyright.PENANAwqofqr7MLP
Link:621Please respect copyright.PENANAYYXylk54lx
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio621Please respect copyright.PENANAVjnBvtUrzl
621Please respect copyright.PENANALKeZZ0Fal7
621Please respect copyright.PENANAn36DrPTLLJ
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。621Please respect copyright.PENANAScq0mlzd0G
621Please respect copyright.PENANAvP2dsMbjrh
https://www.instagram.com/potatopigtongue/621Please respect copyright.PENANApxrZk4B00h
621Please respect copyright.PENANA029nPBHGCS
Ref1:https://stke.sciencemag.org/content/13/654/eaay6077621Please respect copyright.PENANAhytlD9Q13B
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 #86
深入淺出–阿斯匹靈與化療藥物並用的研究
喜歡 2
閱讀 617
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