The functional S1PR1 antagonists FTY720 (
Fingolimod, Cayman Chemical, Ann Arbor MI) and TASP0277308 (TASP, Shanghai Chempartner Co., Shanghai, China) were prepared according to a previously published protocol [18 ]. FTY720 and TASP0277308 were both prepared as stocks in DMSO, for oral administration drugs were diluted to the appropriate dose in 30% DMSO in 0.5% methylcellulose; for intraperitoneal (i.p.) injections FTY720 was diluted in saline. The selective A
3AR antagonist, MRS5698 ([1S,2R,3S,4R,5S)-4-(6-((3-chlorobenzyl)amino)-2-((3,4-difluorophenyl)ethynyl)-9H-purin-9-yl)-2,3-dihydroxy-N-methylbicyclo[3.1.0]hexane-1-carboxamide]) was synthesized as described previously [39 (
link)] and dissolved in saline for i.p. injections. These compounds have been previously shown to be specific for their target receptors and efficacious in male rodent pain models at the doses used in this study [18 –20 (
link); 38 (
link); 40 (
link)]. The antidepressant, duloxetine hydrochloride, was purchased from TCI America (Portland, OR) and dissolved in DMSO as a stock solution, for i.p. injections stock was diluted in saline.
Morphine sulfate was a kind gift from Mallinckrodt Pharmaceuticals (St. Louis MO, USA) for i.p injections
Morphine sulfate was diluted in saline. All therapeutic test compounds were given 20–30 min prior to chemotherapy, except where stated herein as a reversal paradigm.
Stockstill K., Wahlman C., Braden K., Chen Z., Yosten G.L., Tosh D.K., Jacobson K.A., Doyle T.M., Samson W.K, & Salvemini D. (2020). Sexually dimorphic therapeutic response in bortezomib-induced neuropathic pain reveals altered pain physiology in female rodents. Pain, 161(1), 177-184.