National Institutes of Health/National Institute of Mental Health (NIH/NIMH)
5R01MH112205
米国
引用
ジャーナル: Cell / 年: 2024 タイトル: Structure-guided design of a peripherally restricted chemogenetic system. 著者: Hye Jin Kang / Brian E Krumm / Adrien Tassou / Matan Geron / Jeffrey F DiBerto / Nicholas J Kapolka / Ryan H Gumpper / Kensuke Sakamoto / D Dewran Kocak / Reid H J Olsen / Xi-Ping Huang / ...著者: Hye Jin Kang / Brian E Krumm / Adrien Tassou / Matan Geron / Jeffrey F DiBerto / Nicholas J Kapolka / Ryan H Gumpper / Kensuke Sakamoto / D Dewran Kocak / Reid H J Olsen / Xi-Ping Huang / Shicheng Zhang / Karen L Huang / Saheem A Zaidi / MyV T Nguyen / Min Jeong Jo / Vsevolod Katritch / Jonathan F Fay / Grégory Scherrer / Bryan L Roth / 要旨: Designer receptors exclusively activated by designer drugs (DREADDs) are chemogenetic tools for remotely controlling cellular signaling, neural activity, behavior, and physiology. Using a structure- ...Designer receptors exclusively activated by designer drugs (DREADDs) are chemogenetic tools for remotely controlling cellular signaling, neural activity, behavior, and physiology. Using a structure-guided approach, we provide a peripherally restricted Gi-DREADD, hydroxycarboxylic acid receptor DREADD (HCAD), whose native receptor is minimally expressed in the brain, and a chemical actuator that does not cross the blood-brain barrier (BBB). This was accomplished by combined mutagenesis, analoging via an ultra-large make-on-demand library, structural determination of the designed DREADD receptor via cryoelectron microscopy (cryo-EM), and validation of HCAD function. Expression and activation of HCAD in dorsal root ganglion (DRG) neurons inhibit action potential (AP) firing and reduce both acute and tissue-injury-induced inflammatory pain. The HCAD chemogenetic system expands the possibilities for studying numerous peripheral systems with little adverse effects on the central nervous system (CNS). The structure-guided approach used to generate HCAD also has the potential to accelerate the development of emerging chemogenetic tools for basic and translational sciences.