現今科技發達,藥物大多數也能夠在實驗室或藥廠裡利用化學物合成出來。811Please respect copyright.PENANAqjx6iAMVEW
811Please respect copyright.PENANAHFsm45e4uS
但若果藥物主要成份的結構實在是太過複雜的話,有時候利用人工合成的方法製造只會吃力不討好,不符合經濟效益。811Please respect copyright.PENANA662cUk5p9Y
811Please respect copyright.PENANAVFlwPV5yX9
811Please respect copyright.PENANAjpU4ySiS3M
就以治療神經肌肉問題等疾病為例的Tropane alkaloids(TAs),主要情況下均是會從特定品種的植物裡頭提取出來;811Please respect copyright.PENANAwsKHUGIBNJ
811Please respect copyright.PENANAvUtxR04FV1
隸屬TAs類別的hyoscyamine及scopolamine可以與acetylcholine receptor結合,更有著解除俄國神經毒素Novichok的能力。811Please respect copyright.PENANA5Txulr70cC
811Please respect copyright.PENANAsWoGApBRBe
俄國神經毒素Novichok延伸閱讀:https://www.penana.com/article/477009811Please respect copyright.PENANABVZ2F2sH3U
811Please respect copyright.PENANA4gLYZ8EQEF
(圖2)科學家一直致力研究增強培植產生TAs植物的方法,但人口增長快速,相關藥物供不應求的問題開始湧現。811Please respect copyright.PENANA9molqvSfYF
811Please respect copyright.PENANAhbJYAjRPvh
811Please respect copyright.PENANAJMBiPxZSnM
再加上植物佔據大量空間及資源,而且生長需時,還有害蟲侵蝕植物導致產量下降各種問題需要關注,長遠來說顯然需要另一種手段製作藥物。811Please respect copyright.PENANAvqRAH4bA5r
811Please respect copyright.PENANATZXF0I85yZ
(圖3)近日,有科學家發表文章(Ref1),利用生長快、易打理的酵母(yeast)來解決這問題。811Please respect copyright.PENANAf6xgBpoqjb
811Please respect copyright.PENANAgAYVk0mbFq
他們利用CRISPR基因編輯技術,將26種來自細菌及植物的基因(其中一種更是燕麥的基因)加進酵母裡頭,強迫酵母利用葡萄糖及氨基酸轉化成為有用的TAs。811Please respect copyright.PENANA1Cb0H5bXjw
811Please respect copyright.PENANAPi0CGgXpnF
811Please respect copyright.PENANAd8mV878Kw9
CRISPR基因編輯技術延伸閱讀:https://www.penana.com/article/465369811Please respect copyright.PENANARPkqlTAQPm
811Please respect copyright.PENANAB7j8khSyy1
過程中他們更分門別類將相應的酵素安放在酵母各個位置,以及刪走一些礙事的基因,務求令到酵母一心一意為製作藥物為主。811Please respect copyright.PENANAoSk8g9eXi4
811Please respect copyright.PENANAGpyCaV4fK1
暫時他們做到的產量為每一公升酵母能夠生產出30-80 μg TAs,有望在1-2年後提升至每升5g,踏進真實市場裡頭運作。811Please respect copyright.PENANAk3LOomIyb1
811Please respect copyright.PENANAbWQ5KWhIWj
(1g=1000mg,1mg=1000 μg)811Please respect copyright.PENANA3NPNEgENyZ
811Please respect copyright.PENANApm8yrG7xdo
811Please respect copyright.PENANAQ1S5KCkwU1
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。811Please respect copyright.PENANAxyqoU03PTy
811Please respect copyright.PENANAeP8K9sY60T
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/toc811Please respect copyright.PENANAVNzDOg0ybi
811Please respect copyright.PENANA9IeUPYcbND
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。811Please respect copyright.PENANACrLpwF9OTv
811Please respect copyright.PENANA9G3bqrf7DX
Link:811Please respect copyright.PENANALgUO4zfUUu
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio811Please respect copyright.PENANAUvEGzrwPDT
811Please respect copyright.PENANA4YjSczoJ98
811Please respect copyright.PENANAkPZJcjgZpa
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。811Please respect copyright.PENANAQSFPTdxC6z
811Please respect copyright.PENANAXFSDimhUZl
Ref1:https://www.nature.com/articles/s41586-020-2650-9811Please respect copyright.PENANAQz1x0YU8PF
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科普專欄–薯不揀單
Author:
薯仔聞茱莉
ISSUE #47
深入淺出–改造酵母以作製藥用途
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