科普專欄–薯不揀單 - 深入淺出–油脂在細胞裡的功用

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。675Please respect copyright.ＰＥＮＡＮＡgy5snqeUQX
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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。675Please respect copyright.ＰＥＮＡＮＡfGGdjUpaLv
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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。675Please respect copyright.ＰＥＮＡＮＡ5Ju2ChSlcK
譬如說，PLN5就是一種引領油脂抵達粒線體的蛋白質。675Please respect copyright.ＰＥＮＡＮＡxShDIWlfil
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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。675Please respect copyright.ＰＥＮＡＮＡdjCcZNllkO
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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。675Please respect copyright.ＰＥＮＡＮＡmRxi9UAAzZ
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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。675Please respect copyright.ＰＥＮＡＮＡVCOR1nPLvx
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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。675Please respect copyright.ＰＥＮＡＮＡa3Jm7Jc4Et
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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。675Please respect copyright.ＰＥＮＡＮＡqNIly4776D
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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/toc675Please respect copyright.ＰＥＮＡＮＡDnfQ5ICcxc
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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。675Please respect copyright.ＰＥＮＡＮＡog6jc0Abn8
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https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio675Please respect copyright.ＰＥＮＡＮＡxpHebRRBiL
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有興趣接收科學資訊的話，歡迎follow IG: potatopigtongue。675Please respect copyright.ＰＥＮＡＮＡewhwj62oFf
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Ref1:https://science.sciencemag.org/content/370/6514/eaay8085675Please respect copyright.ＰＥＮＡＮＡKafvHaaJN3

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