Anterograde transneuronal tracing and genetic control with engineered yellow fever vaccine YFV-17D.
Anterograde transneuronal tracing and genetic control with engineered yellow fever vaccine YFV-17D.
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DOI：
10.1038/s41592-021-01319-9
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发表时间：
2021-12
期刊：
影响因子：
48
通讯作者：
Xu W
中科院分区：
文献类型：
--
作者：
Li E;Guo J;Oh SJ;Luo Y;Oliveros HC;Du W;Arano R;Kim Y;Chen YT;Eitson J;Lin DT;Li Y;Roberts T;Schoggins JW;Xu W
Transneuronal viruses are powerful tools for tracing neuronal circuits or delivering genes to specific neurons in the brain. While there are multiple retrograde viruses, few anterograde viruses are available. Further, available anterograde viruses often have limitations such as retrograde transport, high neuronal toxicity, or weak signals. We developed an anterograde viral system based on a live attenuated vaccine of yellow fever – YFV-17D. Replication-deficient or packaging-deficient mutants of YFV-17D can be reconstituted in the brain, leading to efficient synapse-specific and anterograde-only transneuronal spreading, which can be controlled to achieve either monosynaptic or polysynaptic tracing. Moreover, inducible transient replication of YFV-17D mutant is sufficient to induce permanent transneuronal genetic modifications without causing neuronal toxicity. The engineered YFV-17D systems can be used to express fluorescent markers, sensors or effectors in downstream neurons, thus providing versatile tools for mapping and functionally controlling neuronal circuits.
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