DREADDs using cell-type specific promotors

Q: "Do you know of anyone who has put DREADD into locus coeruleus?"

 A: yes a very nice paper recently using PRSx8 and lentivirus.  Per the authors:

  "PRSx8 is based on an upstream regulatory site in the human DBH promoter and drives high levels of expression in adrenergic neurons"

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