Article Publish Status: FREE
Abstract Title:

PC1 has the Capacity to Attenuate Joint Inflammation in Collagen-Induced Arthritis in DBA/1 Mice.

Abstract Source:

Nutrients. 2019 Apr 5 ;11(4). Epub 2019 Apr 5. PMID: 30959746

Abstract Author(s):

Meera Esvaran, Patricia L Conway

Article Affiliation:

Meera Esvaran


strains have shown efficacy in attenuating inflammation. This study evaluated the potential ofPC1 for the treatment of rheumatoid arthritis (RA) using a murine model of collagen-induced arthritis. On Day 1, healthy DBA/1 mice (six to eight weeks of age) were immunized, with 100μg of Chicken Type 11 collagen emulsified in complete Freund's adjuvant (CFA) by intradermal injection, at the base of the tail. On Day 21, the mice were immunized intraperitoneally with 100 μg of Bovine Type11 collagen in phosphate buffered saline (PBS). On Day 28, the mice were immunized intraperitoneally with 50 μg of lipopolysaccharide (LPS). ViablePC1 (1× 10⁸ colony forming units) was given daily from Day two until the end of the experiment. From Day 21 onwards, the mice were monitored daily for clinical signs of arthritis. On Day 44, the experiment was terminated. Paws were obtained for histology and serum for cytokine assays.PC1-fed mice had significantly reduced paw inflammation as well as decreased synovial infiltration and less cartilage damage. Circulating serum cytokine profiles revealed decreased IL-12 and increased anti-inflammatory cytokines, namely IL-4 and IL-10. Thus, early administration ofPC1 could prove to be a valuable therapeutic agent in the management of RA.

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