Abstract:
:Osteoarthritis (OA) is a chronic degenerative joint disease and a major health problem in the elderly population. No disease-modifying osteoarthritis drug (DMOAD) has been made available for clinical use. Here we present a disease-modifying strategy for OA, focusing on messenger RNA (mRNA) delivery of a therapeutic transcription factor using polyethylene glycol (PEG)-polyamino acid block copolymer-based polyplex nanomicelles. When polyplex nanomicelles carrying the cartilage-anabolic, runt-related transcription factor (RUNX) 1 mRNA were injected into mouse OA knee joints, OA progression was significantly suppressed compared with the non-treatment control. Expressions of cartilage-anabolic markers and proliferation were augmented in articular chondrocytes of the RUNX1-injected knees. Thus, this study provides a proof of concept of the treatment of degenerative diseases such as OA by the in situ mRNA delivery of therapeutic transcription factors; the presented approach will directly connect basic findings on disease-protective or tissue-regenerating factors to disease treatment.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Aini H,Itaka K,Fujisawa A,Uchida H,Uchida S,Fukushima S,Kataoka K,Saito T,Chung UI,Ohba Sdoi
10.1038/srep18743subject
Has Abstractpub_date
2016-01-05 00:00:00pages
18743issn
2045-2322pii
srep18743journal_volume
6pub_type
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