探索朊病毒

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雖然已知畸形朊病毒會導致“瘋牛病”和其他無法治癒的腦部疾病,即傳播性海綿狀腦病 (TSEs),但正常朊病毒的作用仍然是個謎。 但是今天出版的《科學》雜誌上報道的最新研究揭示了一種可能性:在其非致病形式中,癢病朊病毒可能透過細胞訊號傳導幫助微調神經細胞功能。

正常朊病毒舒適地位於神經細胞表面,似乎與其他一些蛋白質一起參與了一系列訊號傳導事件,這些事件激活了所謂的 Fyn 酶,然後 Fyn 酶可以啟動細胞內部的事件。 研究人員表示,進一步剖析這條訊號傳遞途徑將有助於確定是什麼刺激了朊病毒的活性。 反過來,這應該闡明特立獨行的形式如何破壞細胞過程——這些資訊可能有一天會帶來治療方法

Kate Wong is an award-winning science writer and senior editor at 大眾科學 focused on evolution, ecology, anthropology, archaeology, paleontology and animal behavior. She is fascinated by human origins, which she has covered for more than 25 years. Recently she has become obsessed with birds. Her reporting has taken her to caves in France and Croatia that Neandertals once called home, to the shores of Kenya's Lake Turkana in search of the oldest stone tools in the world, to Madagascar on an expedition to unearth ancient mammals and dinosaurs, to the icy waters of Antarctica, where humpback whales feast on krill, and on a "Big Day" race around the state of Connecticut to find as many bird species as possible in 24 hours. Kate is co-author, with Donald Johanson, of Lucy's Legacy: The Quest for Human Origins. She holds a bachelor of science degree in biological anthropology and zoology from the University of Michigan. Follow Wong on X (formerly Twitter) @katewong

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