Article ; Online: Single dose thermoresponsive dexamethasone prodrug completely mitigates joint pain for 15 weeks in a murine model of osteoarthritis.
Nanomedicine : nanotechnology, biology, and medicine
2024 Volume 57, Page(s) 102735
Abstract: In this study, we aimed to assess the analgesic efficacy of a thermoresponsive polymeric dexamethasone (Dex) prodrug (ProGel-Dex) in a mouse model of osteoarthritis (OA). At 12 weeks post model establishment, the OA mice received a single intra-articular ...
Abstract | In this study, we aimed to assess the analgesic efficacy of a thermoresponsive polymeric dexamethasone (Dex) prodrug (ProGel-Dex) in a mouse model of osteoarthritis (OA). At 12 weeks post model establishment, the OA mice received a single intra-articular (IA) injection of ProGel-Dex, dose-equivalent Dex, or Saline. Comparing to Saline and Dex controls, ProGel-Dex provided complete and sustained pain relief for >15 weeks according to incapacitance tests. In vivo optical imaging confirmed the continuous presence of ProGel-Dex in joints for 15 weeks post-injection. According to micro-CT analysis, ProGel-Dex treated mice had significantly lower subchondral bone thickness and medial meniscus bone volume than Dex and Saline controls. Except for a transient delay of body weight increase and slightly lower endpoint liver and spleen weights, no other adverse effect was observed after ProGel-Dex treatment. These findings support ProGel-Dex's potential as a potent and safe analgesic candidate for management of OA pain. |
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MeSH term(s) | Mice ; Animals ; Dexamethasone/pharmacology ; Dexamethasone/therapeutic use ; Disease Models, Animal ; Prodrugs/pharmacology ; Prodrugs/therapeutic use ; Osteoarthritis/drug therapy ; Arthralgia/chemically induced ; Arthralgia/drug therapy ; Analgesics/pharmacology ; Analgesics/therapeutic use |
Chemical Substances | Dexamethasone (7S5I7G3JQL) ; Prodrugs ; Analgesics |
Language | English |
Publishing date | 2024-01-29 |
Publishing country | United States |
Document type | Journal Article |
ZDB-ID | 2183417-9 |
ISSN | 1549-9642 ; 1549-9634 |
ISSN (online) | 1549-9642 |
ISSN | 1549-9634 |
DOI | 10.1016/j.nano.2024.102735 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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