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The Effect of Human Placental Extract on Rheumatoid Arthritis in an Animal Model
Article in En | WPRIM | ID: wpr-134659
Responsible library: WPRO
ABSTRACT
OBJECTIVE: To assess the efficacy of human placental extract (HPE) in an animal model of rheumatoid arthritis (RA). METHOD: We used (i) KRN C57BL/6 TCR transgenic x NOD mice (KBx/N) serum transfer arthritis and (ii) collagen-induced arthritis (CIA) mice to evaluate the effi cacy of HPE (1 ul or 100 ul, intra-peritoneal, three times per week) on RA. Incidence, severity of arthritis, and hind-paw thickness were quantifi ed. Joint destruction was analyzed using modifi ed mammographic imaging. Histopathological analysis for inflammation, cartilage, and osteoclasts was performed using Hematoxylin-eosin (H-E), safranin-O, and tartrate-resistant acidic phosphatase (TRAP). ELISAs were used for detection of various cytokines in serum and joint tissue. RESULTS: There were no significant differences in incidence of arthritis, clinical scores of arthritis, and hind-paw thickness between HPE-treated and vehicle-treated groups for up to 2 weeks in the KBx/N serum transfer arthritis model. Histopathological analysis also showed no differences 2 weeks after treatment. Levels of TNF-alpha, IL-1beta, IL-6, IL-10, and RANKL in serum and joint tissues were similar in all groups. Furthermore, there were no differences in clinical, radiological, and histological parameters between HPE-treated and vehicle-treated group for 3 weeks in the CIA model. CONCLUSION: Systemic treatment with HPE has no beneficial effects on arthritis in animal models of RA. Therefore, indiscreet use of HPE in RA should be forbidden.
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Full text: 1 Index: WPRIM Main subject: Osteoclasts / Arthritis / Arthritis, Experimental / Arthritis, Rheumatoid / Enzyme-Linked Immunosorbent Assay / Cartilage / Incidence / Cytokines / Interleukin-6 / Tumor Necrosis Factor-alpha Type of study: Incidence_studies / Prognostic_studies Limits: Animals / Humans Language: En Journal: Annals of Rehabilitation Medicine Year: 2012 Type: Article
Full text: 1 Index: WPRIM Main subject: Osteoclasts / Arthritis / Arthritis, Experimental / Arthritis, Rheumatoid / Enzyme-Linked Immunosorbent Assay / Cartilage / Incidence / Cytokines / Interleukin-6 / Tumor Necrosis Factor-alpha Type of study: Incidence_studies / Prognostic_studies Limits: Animals / Humans Language: En Journal: Annals of Rehabilitation Medicine Year: 2012 Type: Article