Background: Immunoablative therapy combined with haematopoietic stem cell transplantation (SCT) is a possible treatment for patients with severe rheumatoid arthritis (RA).

Case Report: A patient with rheumatoid factor positive, progressively erosive RA, refractive to treatment, was treated with high dose cyclophosphamide, followed by reinfusion of an unmanipulated peripheral blood graft derived from her identical twin sister. The clinical response was unsatisfactory, necessitating reinstitution of treatment with disease modifying antirheumatic drugs, which was associated with persistence of host serum autoantibodies and a cellular infiltrate in synovium, notably of plasma cells.

Discussion: The effectiveness of syngeneic SCT may be critically dependent on the degree of immunoablation achieved or on the composition of the graft.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1755307PMC
http://dx.doi.org/10.1136/ard.2004.034793DOI Listing

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