期刊
出版社
ELSEVIER
DOI: 10.1016/j.msec.2020.111042
关键词
Celecoxib (CXB); Solid dispersion (SD); Micelles (M); Anti-inflammatory effects; Oral absorption; Rheumatoid arthritis (RA)
资金
- National Research Foundation of Korea (NRF) - Korea government (MSIT) [2015R1A2A1A10051596, 2019R1H1A2039708]
- National Research Foundation of Korea [4120200813639, 2019R1H1A2039708] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The incidence of rheumatoid arthritis (RA), an autoimmune inflammatory disease, is rapidly increasing in aging societies. In the current study, celecoxib (CXB) micelles were developed to improve the oral absorption and anti-inflammatory effects of CXB in cell studies and lambda-carrageenan rat models, and to enhance the therapeutic effects of CXB on RA in complete Freund's adjuvant (CFA)-induced RA rat models. Moreover, CXB micelles and previously developed solid dispersion (SD6) formulations were evaluated. The physical properties of optimal CXB micelles (M3), such as crystallinity, thermal properties, and intramolecular interactions, were altered. Compared with the commercial product (Celebrex (R)), the M3 and SD6 formulations showed significantly improved anti-inflammatory effects in terms of nitric oxide reduction, 1.5-fold and 2.2-fold, respectively, at the cellular level. The relative bioavailability (BA) of the M3 and SD6 formulations was also significantly improved as oral bioavailability (167.2% and 219.8% respectively), compared with that of Celebrex (R). In particular, M3 and SD6 significantly reduced inflammation and edema volume relative to Celebrex (R) in CFA-induced RA rat models. Moreover, both M3 and SD6 effectively suppressed CFA-induced pro-inflammatory cytokines (TNF-alpha and IL-1 beta) in rat splenic tissues. In conclusion, polymeric systems improved the solubility, relative BA (%) and anti-inflammatory effects of CXB. Thus, CXB polymeric systems show potential as therapeutic agents against inflammation and RA and may need to be tested at the clinical level.
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