Ontology highlight
ABSTRACT: Objective
Despite the increased use of platelet-rich plasma (PRP) in the treatment of osteoarthritis (OA), whether and how age of the PRP donor affects therapeutic efficacy is unclear.Design
In vitro, male osteoarthritic human chondrocytes were treated with PRP from young (18-35 years) or old (≥65 years) donors, and chondrogenic profile was evaluated using immunofluorescent staining for two markers of chondrogenicity, type II collagen and SOX-9. In vivo, we used a within-subjects design to compare Osteoarthritis Research Society International (OARSI) scores in aged mouse knee joints injected with PRP from young or old individuals.Results
In vitro experiments revealed that PRP from young donors induced a more youthful chondrocyte phenotype, as evidenced by increased type II collagen (p = 0.033) and SOX-9 expression (p = 0.022). This benefit, however, was significantly blunted when cells were cultured with PRP from aged donors. Accordingly, in vivo studies revealed that animals treated with PRP from young donors displayed a significantly improved cartilage integrity when compared to knees injected with PRP from aged donors (p = 0.019).Conclusion
Injection of PRP from a young individual induced a regenerative effect in aged cells and mice, whereas PRP from aged individuals showed no improvement chondrocyte health and cartilage integrity.
SUBMITTER: Chowdhary K
PROVIDER: S-EPMC10245083 | biostudies-literature | 2022 Dec
REPOSITORIES: biostudies-literature
Chowdhary Kuntal K Sahu Amrita A Iijima Hirotaka H Shinde Sunita S Borg-Stein Joanne J Ambrosio Fabrisia F
American journal of physical medicine & rehabilitation 20221207 7
<h4>Objective</h4>Despite the increased use of platelet-rich plasma in the treatment of osteoarthritis, whether and how age of the platelet-rich plasma donor affects therapeutic efficacy is unclear.<h4>Design</h4>In vitro, male osteoarthritic human chondrocytes were treated with platelet-rich plasma from young (18-35 yrs) or old (≥65 yrs) donors, and the chondrogenic profile was evaluated using immunofluorescent staining for two markers of chondrogenicity, type II collagen and SOX-9. In vivo, we ...[more]