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Antibodies Produced Within Joints In Rheumatoid Arthritis

Date:
January 13, 2009
Source:
Public Library of Science
Summary:
Antibodies produced within the joints themselves may be responsible for joint damage in rheumatoid arthritis, according to new research.

Antibodies produced within the joints themselves may be responsible for joint damage in rheumatoid arthritis, according to new research published in PLoS Medicine.

Studying joint biopsies from people with rheumatoid arthritis, Costantino Pitzalis of Barts and the London School of Medicine and colleagues found that tiny structures in the joint lining mimic key functions of antibody-producing lymph nodes, and can support the production of specific antibodies that may play a role in joint destruction.

They found that these processes continued after joint tissue bearing the lymphoid structures was transplanted into mice without immune systems of their own, indicating that potentially destructive antibody production within joints can proceed independently of the body's lymph nodes.

In an accompanying Perspective article, Rene E. M. Toes and Tom W. J. Huizinga of Leiden University Medical Center, who were not involved in the research, note that these results provide a rationale to target lymphoid structures in the joints as a new treatment modality for rheumatoid arthritis.


Story Source:

The above story is based on materials provided by Public Library of Science. Note: Materials may be edited for content and length.


Journal References:

  1. Humby et al. Ectopic Lymphoid Structures Support Ongoing Production of Class-Switched Autoantibodies in Rheumatoid Synovium. PLoS Medicine, 2009; 6 (1): e1 DOI: 10.1371/journal.pmed.0060001
  2. Toes et al. Autoimmune Responses in the Rheumatoid Synovium. PLoS Medicine, 2009; 6 (1): e9 DOI: 10.1371/journal.pmed.1000009

Cite This Page:

Public Library of Science. "Antibodies Produced Within Joints In Rheumatoid Arthritis." ScienceDaily. ScienceDaily, 13 January 2009. <www.sciencedaily.com/releases/2009/01/090112212449.htm>.
Public Library of Science. (2009, January 13). Antibodies Produced Within Joints In Rheumatoid Arthritis. ScienceDaily. Retrieved October 20, 2014 from www.sciencedaily.com/releases/2009/01/090112212449.htm
Public Library of Science. "Antibodies Produced Within Joints In Rheumatoid Arthritis." ScienceDaily. www.sciencedaily.com/releases/2009/01/090112212449.htm (accessed October 20, 2014).

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