癌細胞的新陳代謝與普通細胞有著顯著的分別,原因是癌細胞需要截然不同的新陳代謝來滿足生長的需要。813Please respect copyright.PENANAj4gwuFVymQ813Please respect copyright.PENANA10DWgATGtQ
但是,當癌細胞從原有位置轉移到另一位置後,其新陳代謝有會否有所轉變呢?813Please respect copyright.PENANAxAqsripo9u
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813Please respect copyright.PENANAd3JVEX8PA3
(圖2)mTORC1是其中一隻掌管細胞生長的蛋白質,而有研究(Ref1)指出,從乳癌轉移到肺部的癌細胞,其mTORC1所帶來的效果更為強大,能令癌細胞生長得更快。813Please respect copyright.PENANAjskjqSDpgC813Please respect copyright.PENANAOaMgWY39W3
813Please respect copyright.PENANAihrvpCMoBd
(圖3)科學家發現,肺部含有充足的Pyruvate代謝物,而利用藥物阻擋「乳癌轉移過來的肺癌」吸收Pyruvate的話,便能減低mTORC1的功效。813Please respect copyright.PENANAHauSd6zX1i813Please respect copyright.PENANAwVqOt5Bbwx
813Please respect copyright.PENANAIpuyjgKpl0
但奇怪的是,用藥物阻擋原發腫瘤乳癌吸收Pyruvate的話,mTORC1的功效並不會有所減低,腫瘤生長的速度並無任何特別變化。813Please respect copyright.PENANAui2u3NlWXF
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這顯示出,癌細胞從原有地方轉移到另一位置後,其新陳代謝亦有著顯著的變化。813Please respect copyright.PENANAakuF5dvhEe
這有可能是因為第二處位置的生長環境有所不同,故此癌細胞需要調節其新陳代謝來適應新環境。813Please respect copyright.PENANAZMjBUfwe0a
813Please respect copyright.PENANAQwB25Jxxo7
在乳癌轉移到肺部的癌細胞,我們可透過針對Pyruvate的吸收來減慢他們的生長,但這是否只適用於從其他位置轉移到肺部的癌細胞,以及乳癌轉移到其他位置的癌細胞,那還需要進一步的研究確實。813Please respect copyright.PENANAWVT3sknHWI
813Please respect copyright.PENANABoOoF58Vd8
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。813Please respect copyright.PENANAWXJ8iKEuN5
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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/toc813Please respect copyright.PENANAgx70DLMEfv
813Please respect copyright.PENANAOEa4O8J62u
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。813Please respect copyright.PENANAqLsiTM3GXj
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Link:813Please respect copyright.PENANATGOKUK8CVU
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio813Please respect copyright.PENANAWOlTTeXGp9
813Please respect copyright.PENANAnhqLBYjuzh
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基於WhatsApp/Facebook等問題,IG將不會再作更新,只會寄居本土LIHKG及Penana。813Please respect copyright.PENANAYKbdZEsEwl
813Please respect copyright.PENANARRV59n4maP
Ref1:https://www.sciencedirect.com/science/article/pii/S1097276520308273813Please respect copyright.PENANAUho8n9Z8wA
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科普專欄–薯不揀單
作者:
薯仔聞茱莉

篇 #147
三十秒科學–癌細胞轉移後所產生的變化
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