PMID- 30843733 OWN - NLM STAT- MEDLINE DCOM- 20190722 LR - 20231006 IS - 1521-0464 (Electronic) IS - 1071-7544 (Print) IS - 1071-7544 (Linking) VI - 26 IP - 1 DP - 2019 Dec TI - Intra-articular injection of triamcinolone acetonide releasing biomaterial microspheres inhibits pain and inflammation in an acute arthritis model. PG - 226-236 AB - Inflammation of the synovium and joint capsule is a main driver of pain in an osteoarthritic (OA) joint. Triamcinolone acetonide (TAA) is a classical corticosteroid that reduces synovitis and alleviates pain, albeit transiently. Biomaterial-based local TAA release may prolong the suppression of pain without the need for multiple injections. Polylactic-co-glycolic acid (PLGA) formulations of TAA prolong OA pain relief to a limited extent. A novel polyesteramide (PEA) microsphere platform allows for extended release in the OA joint for over 3 months. To evaluate their effect on pain and inflammation, TAA-loaded microspheres were intra-articularly delivered to the knee joint in a rat model of acute arthritis induced by intra-articular injection of streptococcal cell wall peptidoglycan-polysaccharide (PGPS) and subsequent flare-ups by intravenous PGPS injections. PEA-loaded microspheres were benchmarked with TAA-loaded PLGA microspheres and bolus TAA injection. TAA treatments were injected intra-articularly before the first induced flare-up. TAA-loaded PEA and PLGA microspheres reduced joint swelling and signs of pain-like behavior over the entire study period, as assessed by weight bearing and referred mechanical hypersensitivity, whereas bolus suspension was effective for a shorter time period. TAA-loaded PEA microspheres reduced lameness to a greater extent than TAA-loaded PLGA microspheres. In conclusion, a single intra-articular injection of TAA-loaded PEA microspheres reduced joint swelling and induced longer pain relief compared to bolus injection. Hence relief of inflammation and pain by PEA-based delivery of TAA may prove to be effective and durable. FAU - Rudnik-Jansen, Imke AU - Rudnik-Jansen I AUID- ORCID: 0000-0002-2508-3610 AD - a Department of Orthopedics , University Medical Center Utrecht , Utrecht , the Netherlands. FAU - Schrijver, Karin AU - Schrijver K AD - a Department of Orthopedics , University Medical Center Utrecht , Utrecht , the Netherlands. FAU - Woike, Nina AU - Woike N AD - b DSM Biomedical B.V , Geleen , The Netherlands. FAU - Tellegen, Anna AU - Tellegen A AUID- ORCID: 0000-0002-8836-097X AD - c Department of Clinical Sciences of Companion Animals , Utrecht University , Utrecht , the Netherlands. FAU - Versteeg, Sabine AU - Versteeg S AD - d Laboratory of Translational Immunology , University Medical Center Utrecht, Utrecht University , Utrecht , the Netherlands. FAU - Emans, Pieter AU - Emans P AUID- ORCID: 0000-0001-9370-5525 AD - e Department of Orthopedics , Maastricht University Medical Center Utrecht , Utrecht , the Netherlands. FAU - Mihov, George AU - Mihov G AD - b DSM Biomedical B.V , Geleen , The Netherlands. FAU - Thies, Jens AU - Thies J AD - b DSM Biomedical B.V , Geleen , The Netherlands. FAU - Eijkelkamp, Niels AU - Eijkelkamp N AD - d Laboratory of Translational Immunology , University Medical Center Utrecht, Utrecht University , Utrecht , the Netherlands. FAU - Tryfonidou, Marianna AU - Tryfonidou M AUID- ORCID: 0000-0002-2333-7162 AD - c Department of Clinical Sciences of Companion Animals , Utrecht University , Utrecht , the Netherlands. FAU - Creemers, Laura AU - Creemers L AD - a Department of Orthopedics , University Medical Center Utrecht , Utrecht , the Netherlands. LA - eng PT - Journal Article PL - England TA - Drug Deliv JT - Drug delivery JID - 9417471 RN - 0 (Acrylic Resins) RN - 0 (Biocompatible Materials) RN - 0 (poly(ethylacrylate)) RN - 1SIA8062RS (Polylactic Acid-Polyglycolic Acid Copolymer) RN - F446C597KA (Triamcinolone Acetonide) SB - IM MH - Acrylic Resins/chemistry MH - Animals MH - Biocompatible Materials/chemistry/*pharmacology MH - Disease Models, Animal MH - Female MH - Inflammation/*drug therapy MH - Injections, Intra-Articular/methods MH - Knee Joint/drug effects MH - Microspheres MH - Osteoarthritis/*drug therapy MH - Pain/*drug therapy MH - Polylactic Acid-Polyglycolic Acid Copolymer/chemistry MH - Rats MH - Rats, Sprague-Dawley MH - Synovial Membrane/drug effects MH - Triamcinolone Acetonide/chemistry/*pharmacology PMC - PMC6407600 OTO - NOTNLM OT - Arthritis OT - microspheres OT - polyesteramide OT - polylactic-co-glycolic acid OT - synovitis OT - triamcinolone acetonide EDAT- 2019/03/08 06:00 MHDA- 2019/07/23 06:00 PMCR- 2019/03/07 CRDT- 2019/03/08 06:00 PHST- 2019/03/08 06:00 [entrez] PHST- 2019/03/08 06:00 [pubmed] PHST- 2019/07/23 06:00 [medline] PHST- 2019/03/07 00:00 [pmc-release] AID - 10.1080/10717544.2019.1568625 [pii] AID - 1568625 [pii] AID - 10.1080/10717544.2019.1568625 [doi] PST - ppublish SO - Drug Deliv. 2019 Dec;26(1):226-236. doi: 10.1080/10717544.2019.1568625.