科普專欄–薯不揀單 - 三十秒科學–細胞自噬

當細胞裡頭出現多餘或者已受損毀的物質，又或者是細胞面臨營養不足的情況，細胞便會啟動名為自噬(Autophagy)的機制，依靠溶酶體(lysosome)將物質消化成為蛋白質/糖份/脂肪，供自己能量或物質所需。519Please respect copyright.ＰＥＮＡＮＡvF08BLwOg4
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早前亦有提及Cancer-associated fibroblasts如何利用自噬(Autophagy)幫助癌細胞生長。519Please respect copyright.ＰＥＮＡＮＡBF5edjVm0I
三十秒科學–癌細胞也會自肥？519Please respect copyright.ＰＥＮＡＮＡ91kOij4j7Q
- 分享自 LIHKG 討論區519Please respect copyright.ＰＥＮＡＮＡSAsCCw47EM
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(圖2)自噬(Autophagy)機制能夠讓細胞在營養不足的情況摧毀多餘的物質，使自己得以在困局下苟延殘喘。519Please respect copyright.ＰＥＮＡＮＡWg5izYec2a
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情形就如人們債務纏身而又沒有收入抵債的時候，只好變賣自己所持有的資產，化成現金抵償。519Please respect copyright.ＰＥＮＡＮＡlWAQE0SERE
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由此可以想像，這是一道治標不治標的方法。519Please respect copyright.ＰＥＮＡＮＡm4BnsWbQyb
當長期沒有營養流入細胞，而細胞再也沒有多餘物質進行自噬的時候，細胞便會啟動自行滅亡的機制。519Please respect copyright.ＰＥＮＡＮＡaDzV5KTTaG
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(圖3)如果催谷癌細胞不斷進行自噬作用的話，促使它們啟動自行滅亡的機制，那豈不是殺滅它們的一道妙計?519Please respect copyright.ＰＥＮＡＮＡRgL8kBXiQk
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很遺憾地，各款癌細胞對於自噬作用的依賴及抗性均有所不同，難以就此單一針對自噬作用來消滅癌細胞。519Please respect copyright.ＰＥＮＡＮＡEryov0OP1g
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暫時較為統一的發現是，大多數的胰臟癌細胞均非常依賴自噬作用來維持自己的生長速度。519Please respect copyright.ＰＥＮＡＮＡQjYyIqyLgd
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在實驗室細胞模型及老鼠實驗中，若果對胰臟癌細胞使用抑制自噬作用的藥物，不但改變它們的新陳代謝，且可減慢癌細胞的生長速度，非常之有潛質成為對抗胰臟癌的其中一手段。519Please respect copyright.ＰＥＮＡＮＡFqn2gGLXwe
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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。519Please respect copyright.ＰＥＮＡＮＡfOQvKlGBEM
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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/toc519Please respect copyright.ＰＥＮＡＮＡ7CU0YGATwC
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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。519Please respect copyright.ＰＥＮＡＮＡertoUaW7BA
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Link:519Please respect copyright.ＰＥＮＡＮＡg27K2nn3gH
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio519Please respect copyright.ＰＥＮＡＮＡ7TU6oRRhVR
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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。519Please respect copyright.ＰＥＮＡＮＡhWL47YUSZF
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Ref1:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3070934/519Please respect copyright.ＰＥＮＡＮＡYk0YAPCTkg
Ref2:https://cancerres.aacrjournals.org/content/66/19/9349.long

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