Anemia in monkey collagen-induced arthritis is correlated with serum IL-6, but not TNFalpha.

Abstract:

:We characterized the anemia in monkey collagen-induced arthritis (CIA) to evaluate whether this model is useful to analyze the basis of an anemia of inflammatory diseases. Cynomolgus monkey was immunized with bovine type II collagen on days 0 and 21. Blood samples were collected regularly and hematological parameters, biochemical parameters and cytokine levels were monitored. Red blood cell (RBC) counts, hematocrit (Ht), and hemoglobin (Hb) gradually decreased after immunization and reached the bottom on day 35. CRP rose rapidly after first immunization and reached a peak on day 21. Serum iron levels and transferrin (Tf) saturation were dropped after immunization and reached a bottom on day 28. Thereafter it returned to normal. On the other hand, ferritin levels increased after immunization. IL-6 levels showed positive correlation with CRP, and negative correlation with Hb, RBC counts and serum iron, but TNFalpha did not show any correlation. In conclusion, the anemia in monkey CIA is very similar to human anemia of inflammatory diseases concerning the changes of serum parameters. And our data strongly suggest that IL-6 is an essential cytokine for the development of the anemia in monkey CIA.

journal_name

Rheumatol Int

authors

Uchiyama Y,Koike N,Mihara M

doi

10.1007/s00296-008-0547-2

subject

Has Abstract

pub_date

2008-07-01 00:00:00

pages

879-83

issue

9

eissn

0172-8172

issn

1437-160X

journal_volume

28

pub_type

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