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大部份的人體細胞均會藏有油脂。當細胞需要能源的時候，油脂可以在粒線體裡頭分解成為能源。92Please respect copyright.ＰＥＮＡＮＡNbbvU5GeU1
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（圖2）有科學家發現(Ref1)，當有細菌入侵細胞的時候，細胞的油脂數量會增加，但相應的體積亦會有所縮小。92Please respect copyright.ＰＥＮＡＮＡRRIzfp2Rvk
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（圖3）油脂除了能量儲存功用外，亦提供了各種蛋白質聚集的地方。92Please respect copyright.ＰＥＮＡＮＡkuwjrBwbqI
譬如說，PLN5就是一種引領油脂抵達粒線體的蛋白質。92Please respect copyright.ＰＥＮＡＮＡQe0OdsAKP0
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科學家在文中指出，當有細菌入侵細胞的時候，油脂上的PLN5蛋白質就會減少，取而代之會有各種與免疫系統有關的蛋白質黏附在油脂上，並傾向與細菌接觸。92Please respect copyright.ＰＥＮＡＮＡdvLKk1D4W5
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箇中油脂上其中一種名為Cathelicidin的蛋白質便有著破壞部份細菌的外壁功效。92Please respect copyright.ＰＥＮＡＮＡiWmHexCUzg
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（圖4）隨著油脂用作對付細菌的關係，油脂再也無瑕抵達粒線體作分解能源之用。因此在對抗入侵者期間，細胞亦會因而傾向轉用葡萄糖作為能量來源。92Please respect copyright.ＰＥＮＡＮＡXvvoxDql9Z
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之於如何善用這種知識來研發對抗感染的療法，那將會是科學家們日後的命題。92Please respect copyright.ＰＥＮＡＮＡ3tN1z6yY6q
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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。92Please respect copyright.ＰＥＮＡＮＡdEt7uIBEZN
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有興趣接收科學資訊的話，歡迎follow IG: potatopigtongue。92Please respect copyright.ＰＥＮＡＮＡskEgIc6yxa
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Ref1:https://science.sciencemag.org/content/370/6514/eaay808592Please respect copyright.ＰＥＮＡＮＡJhIylmnkf8
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