2024-03-29T06:42:04Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/529732022-11-17T02:08:08Zhdl_2115_20040hdl_2115_121Correlation between elevation of serum antinuclear antibody titer and decreased therapeutic efficacy in the treatment of Behçet's disease with infliximabIwata, DaijuNamba, KenichiMizuuchi, KazuomiKitaichi, NobuyoshiKase, SatoruTakemoto, YukoOhno, ShigeakiIshida, SusumuBehçet's diseaseRetinal vasculitisUveitisAntinuclear antibodyInfliximabBiomarkerAnti-TNF-α monoclonal antibody496Background: Infliximab, an anti-TNF-α monoclonal antibody, administered to Behçet's disease (BD) patients in Japan with refractory intraocular inflammation, has shown excellent clinical results. However, some patients demonstrate a decreased response to infliximab during the course of the treatment. In the present study, we investigated the correlation between this reduced therapeutic effect and elevation of the serum antinuclear antibody (ANA) titers in patients with BD who were undergoing infliximab therapy. Methods: Seventeen patients (14 males and 3 females) with uveitis in BD who were undergoing treatment with infliximab for 2 years or longer were enrolled. Their blood test results and clinical histories were obtained from medical records. Results: One patient (5.9%) was ANA-positive prior to the initiation of infliximab, and 11 patients (64.7%) developed positive ANA during the therapy. The appearance of ANA was observed 6 months after the initiation of the infliximab therapy, and its titres gradually increased. None of the patients showed lupus symptoms. Five patients (29.4%) have suffered from ocular inflammatory attacks since 6th month from the initiation of infliximab treatment and all of them were ANA-positive. In contrast, 4 patients (23.5%) who were ANA-negative experienced no ocular attacks during the follow-up period. Conclusions: Here we report the positive conversion and subsequent elevation of serum ANA titres in some patients with BD after the initiation of infliximab therapy. Since all recurrences of uveitis were shown only in the ANA-positive patients, serum ANA titre may be a helpful biomarker for predicting the recurrence of ocular attacks in BD patients treated with anti-TNF-α antibody therapies.Springer Berlin / HeidelbergJournal Articleapplication/pdfhttp://hdl.handle.net/2115/52973https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/52973/1/GACEO250-7_1081-1087.pdf0721-832XGraefe's Archive for Clinical and Experimental Ophthalmology2507108110872012-07enginfo:pmid/22234352info:doi/10.1007/s00417-011-1908-1The original publication is available at www.springerlink.comauthor