The Effect of Human Placental Extract on Rheumatoid Arthritis in an Animal Model
Annals of Rehabilitation Medicine
;
: 197-206, 2012.
Article
in English
| WPRIM
| ID: wpr-134659
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.
Full text:
Available
Index:
WPRIM (Western Pacific)
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 study
/
Prognostic study
Limits:
Animals
/
Humans
Language:
English
Journal:
Annals of Rehabilitation Medicine
Year:
2012
Type:
Article
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